/* ==================== VARIABLES CSS ==================== */
:root {
  /* Colores principales */
  --primary: #f59e0b;
  --primary-dark: #d97706;
  --secondary: #f97316;
  --accent: #fbbf24;

  /* Tonos oscuros */
  --dark-900: #0a0a0a;
  --dark-800: #121212;
  --dark-700: #1a1a1a;
  --dark-600: #262626;

  /* Grises */
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;

  /* Efectos */
  --glow: 0 0 40px rgba(245, 158, 11, 0.5);
  --glow-intense: 0 0 80px rgba(245, 158, 11, 0.8);

  /* Tipografía */
  --font-display: "DM Sans", sans-serif;
  --font-mono: "Space Mono", monospace;

  /* Transiciones */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Espaciado responsive */
  --section-padding: clamp(4rem, 8vw, 8rem);
  --container-padding: clamp(1rem, 4vw, 2.5rem);
  --gap-sm: clamp(0.5rem, 2vw, 1rem);
  --gap-md: clamp(1rem, 3vw, 2rem);
  --gap-lg: clamp(2rem, 5vw, 4rem);
}

/* ==================== RESET Y BASE ==================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  font-size: 100%; /* Base 16px */
}

body {
  font-family: var(--font-display);
  background: var(--dark-900);
  color: var(--gray-100);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ==================== ANIMACIONES GLOBALES ==================== */
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(0.95);
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 200%;
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

/* Delays para animaciones escalonadas */
.delay-100 {
  animation-delay: 0.1s;
}
.delay-200 {
  animation-delay: 0.2s;
}
.delay-300 {
  animation-delay: 0.3s;
}
.delay-400 {
  animation-delay: 0.4s;
}
.delay-500 {
  animation-delay: 0.5s;
}
.delay-600 {
  animation-delay: 0.6s;
}

/* ==================== NAVBAR ==================== */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: 72px;
  z-index: 1000;
  background: rgba(15, 15, 15, 0.55);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.04;
}

.navbar::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    90deg,
    rgba(245, 158, 11, 0.12),
    rgba(255, 255, 255, 0.08),
    rgba(245, 158, 11, 0.12)
  );
  opacity: 0.35;
}

.navbar-container {
  max-width: 1400px;
  height: 100%;
  margin: 0 auto;
  padding-inline: var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.015)
  );
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  height: 100%;
  position: relative;
  z-index: 2;
}

.logo img {
  height: clamp(42px, 4vw, 58px);
  width: auto;
  transition:
    transform 0.35s ease,
    filter 0.35s ease;
}

.logo:hover img {
  transform: scale(1.06);
  filter: drop-shadow(0 4px 12px rgba(245, 158, 11, 0.35));
}

/* Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.75rem);
  list-style: none;
  position: relative;
  z-index: 2;
}

.nav-link {
  color: var(--gray-100);
  font-weight: 600;
  font-size: clamp(0.875rem, 1.5vw, 0.95rem);
  position: relative;
  transition: color 0.25s ease;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

/* CTA Button */
.cta-nav {
  dysplay: inline-flex;
  padding: clamp(0.6rem, 1.5vw, 0.7rem) clamp(1.2rem, 3vw, 1.6rem);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  color: #fff;
  font-weight: 700;
  font-size: clamp(0.85rem, 1.5vw, 0.95rem);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
  box-shadow: 0 8px 28px rgba(245, 158, 11, 0.35);
  white-space: nowrap;
}

.cta-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(245, 158, 11, 0.45);
}

/* Responsive Navbar */
@media (max-width: 768px) {
  .navbar {
    height: 64px;
  }

  .nav-menu {
    display: none;
  }

  .cta-nav {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .navbar {
    height: 60px;
  }

  .logo img {
    height: 38px;
  }

  .cta-nav {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
}

/* ==================== HERO SECTION ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: clamp(6rem, 12vh, 8rem) var(--container-padding)
    clamp(3rem, 6vh, 4rem);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 100%;
  height: 150%;
  background: radial-gradient(
    circle,
    rgba(245, 158, 11, 0.15) 0%,
    transparent 70%
  );
  animation: rotate 30s linear infinite;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(245, 158, 11, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 158, 11, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.5;
  pointer-events: none;
}

.hero-container {
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 500px), 1fr));
  gap: var(--gap-lg);
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Hero Content */
.hero-content {
  animation: slideInLeft 0.8s ease;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: clamp(0.5rem, 1.5vw, 0.625rem) clamp(1rem, 2.5vw, 1.25rem);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 50px;
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
  font-size: clamp(0.75rem, 1.5vw, 0.85rem);
  font-family: var(--font-mono);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
  letter-spacing: -0.03em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--gray-400);
  margin-bottom: clamp(2rem, 4vw, 3rem);
  line-height: 1.7;
  max-width: 600px;
}

.hero-buttons {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.25rem);
  flex-wrap: wrap;
}

/* Buttons */
.btn-primary,
.btn-secondary {
  padding: clamp(0.875rem, 2vw, 1.125rem) clamp(1.75rem, 4vw, 2.5rem);
  border-radius: 10px;
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  font-weight: 700;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.3);
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: var(--transition-slow);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-secondary:hover {
  background: rgba(245, 158, 11, 0.1);
  transform: translateY(-3px);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  animation: slideInRight 0.8s ease;
  min-height: 300px;
}

.mockup-container {
  position: relative;
  animation: float 6s ease-in-out infinite;
  width: 100%;
}

.main-mockup {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow:
    0 0 0 1px rgba(245, 158, 11, 0.2),
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 100px rgba(245, 158, 11, 0.2);
  background: linear-gradient(135deg, var(--dark-800), var(--dark-700));
  padding: clamp(1rem, 3vw, 2rem);
}

.mockup-screen {
  background: var(--dark-900);
  border-radius: 12px;
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.mockup-header {
  display: flex;
  gap: 0.5rem;
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
}

.mockup-dot {
  width: clamp(10px, 1.5vw, 12px);
  height: clamp(10px, 1.5vw, 12px);
  border-radius: 50%;
  background: var(--gray-600);
}

.mockup-dot:nth-child(1) {
  background: #ff5f56;
}
.mockup-dot:nth-child(2) {
  background: #ffbd2e;
}
.mockup-dot:nth-child(3) {
  background: #27c93f;
}

.mockup-content {
  display: grid;
  gap: clamp(0.75rem, 1.5vw, 1rem);
}

.mockup-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: clamp(0.5rem, 1.5vw, 0.75rem);
}

.mockup-card {
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.1),
    rgba(249, 115, 22, 0.05)
  );
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 8px;
  padding: clamp(0.875rem, 2vw, 1.25rem);
  transition: var(--transition);
}

.mockup-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.3);
}

.mockup-card-title {
  font-size: clamp(0.65rem, 1.2vw, 0.75rem);
  color: var(--gray-400);
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mockup-card-value {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Floating Badges */
.floating-badge {
  position: absolute;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 12px;
  padding: clamp(0.75rem, 2vw, 1rem) clamp(1rem, 2.5vw, 1.5rem);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  animation: float 5s ease-in-out infinite;
}

.floating-badge-1 {
  top: 10%;
  left: -10%;
  animation-delay: 0s;
}

.floating-badge-2 {
  bottom: 15%;
  right: -10%;
  animation-delay: 2.5s;
}

.badge-icon {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.5rem;
}

.badge-label {
  font-size: clamp(0.75rem, 1.5vw, 0.85rem);
  color: var(--gray-400);
}

.badge-value {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 700;
  color: var(--primary);
}

/* Responsive Hero */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .floating-badge-1,
  .floating-badge-2 {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
  }

  .mockup-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
    display: flex;
  }

  .mockup-row {
    grid-template-columns: 1fr;
  }
}

/* ==================== PROBLEMS SECTION ==================== */
.problems {
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(
    180deg,
    var(--dark-900) 0%,
    var(--dark-800) 50%,
    var(--dark-900) 100%
  );
  position: relative;
  overflow: hidden;
}

.problems::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1400px;
  height: 100%;
  background: radial-gradient(
    ellipse at top,
    rgba(245, 158, 11, 0.08) 0%,
    transparent 50%
  );
  pointer-events: none;
}

/* Section Container */
.section-container {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: clamp(3rem, 6vw, 5rem);
  position: relative;
}

.header-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.ornament-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.5);
  animation: pulse 2s ease-in-out infinite;
}

.ornament-line {
  width: clamp(40px, 8vw, 60px);
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(245, 158, 11, 0.5),
    transparent
  );
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: clamp(0.5rem, 1.5vw, 0.625rem) clamp(1.25rem, 3vw, 1.5rem);
  background: rgba(245, 158, 11, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 100px;
  font-size: clamp(0.7rem, 1.5vw, 0.8rem);
  font-family: var(--font-mono);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
  position: relative;
  overflow: hidden;
}

.section-badge::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(245, 158, 11, 0.1),
    transparent
  );
  animation: shimmer 3s infinite;
}

.badge-icon {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
}

.section-title {
  font-size: clamp(2rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--gray-400);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.7;
  font-weight: 400;
}

/* Problems Grid */
.problems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: clamp(1rem, 2.5vw, 1.5rem);
}

/* Problem Cards */
.problem-card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  animation: fadeInUp 0.6s ease;
  animation-fill-mode: both;
}

.card-glow {
  position: absolute;
  inset: -2px;
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.3),
    rgba(251, 191, 36, 0.1),
    transparent 50%
  );
  border-radius: 24px;
  opacity: 0;
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}

.problem-card:hover .card-glow {
  opacity: 1;
}

.card-inner {
  position: relative;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(30, 30, 36, 0.95),
    rgba(24, 24, 30, 0.98)
  );
  backdrop-filter: blur(20px);
  border: 1px solid rgba(245, 158, 11, 0.1);
  border-radius: 24px;
  padding: clamp(1.5rem, 3vw, 2rem);
  display: flex;
  flex-direction: column;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

.problem-card:hover .card-inner {
  transform: translateY(-4px);
  border-color: rgba(245, 158, 11, 0.3);
  background: linear-gradient(135deg, rgba(30, 30, 36, 1), rgba(24, 24, 30, 1));
}

/* Problem Header */
.problem-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
  gap: 1rem;
  flex-wrap: wrap;
}

.problem-icon-wrapper {
  position: relative;
}

.icon-background {
  position: absolute;
  top: -8px;
  left: -8px;
  width: 76px;
  height: 76px;
  background: radial-gradient(
    circle,
    rgba(245, 158, 11, 0.15),
    transparent 70%
  );
  border-radius: 16px;
  filter: blur(8px);
  opacity: 0;
  transition: opacity 0.5s ease;
}

.problem-card:hover .icon-background {
  opacity: 1;
}

.problem-icon {
  position: relative;
  width: clamp(52px, 8vw, 60px);
  height: clamp(52px, 8vw, 60px);
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.2),
    rgba(251, 191, 36, 0.1)
  );
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(1.5rem, 3vw, 1.75rem);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.problem-card:hover .problem-icon {
  transform: scale(1.05) rotate(-5deg);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.2);
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.3),
    rgba(251, 191, 36, 0.15)
  );
}

/* Problem Badges */
.problem-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: clamp(0.3rem, 1vw, 0.375rem) clamp(0.75rem, 1.5vw, 0.875rem);
  border-radius: 100px;
  font-size: clamp(0.7rem, 1.2vw, 0.75rem);
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.problem-badge.critical {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

.problem-badge.high {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
  color: #fbbf24;
}

.problem-badge.medium {
  background: rgba(251, 191, 36, 0.1);
  border-color: rgba(251, 191, 36, 0.3);
  color: #fcd34d;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

/* Problem Content */
.problem-content {
  flex: 1;
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
}

.problem-title {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  font-weight: 800;
  margin-bottom: clamp(0.5rem, 1.5vw, 0.875rem);
  color: var(--gray-100);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.problem-description {
  color: var(--gray-400);
  line-height: 1.7;
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
}

/* Problem Footer */
.problem-footer {
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(245, 158, 11, 0.06);
}

.problem-stat {
  display: inline-flex;
  align-items: center;
  gap: clamp(0.25rem, 0.8vw, 0.35rem);
  padding: 0.25rem 0.5rem;
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.15);
  border-radius: 8px;
  transition: all 0.3s ease;
  max-width: 100%;
}

.problem-card:hover .problem-stat {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.25);
  transform: translateX(2px);
}

.stat-icon {
  width: clamp(12px, 2vw, 14px);
  height: clamp(12px, 2vw, 14px);
  min-width: 12px;
  color: #ef4444;
  opacity: 0.85;
  flex-shrink: 0;
}

.stat-label,
.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(0.7rem, 1.2vw, 0.75rem);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
}

.stat-label {
  color: #fca5a5;
}

.stat-value {
  color: #ef4444;
}

/* Responsive Problems */
@media (max-width: 768px) {
  .problems-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .problem-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ==================== SOLUTION SECTION ==================== */
.solution {
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(
    180deg,
    var(--dark-900) 0%,
    var(--dark-800) 50%,
    var(--dark-900) 100%
  );
  position: relative;
  overflow: hidden;
}

.solution::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: clamp(600px, 80vw, 800px);
  height: clamp(600px, 80vw, 800px);
  background: radial-gradient(
    circle,
    rgba(245, 158, 11, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
  animation: pulse 4s ease-in-out infinite;
}

/* Solution Grid */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 450px), 1fr));
  gap: var(--gap-lg);
  align-items: center;
  margin-top: clamp(2rem, 5vw, 4rem);
}

/* Devices Stack Container */
.solution-visual {
  position: relative;
  perspective: 2000px;
  order: 2;
}

.devices-stack {
  position: relative;
  width: 100%;
  height: clamp(400px, 60vw, 600px);
  margin: 0 auto;
}

/* Device Base Styles */
.device {
  position: absolute;
  border-radius: clamp(12px, 2vw, 16px);
  background: linear-gradient(135deg, #2a2a2e 0%, #1f1f23 100%);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(245, 158, 11, 0.1),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.device:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(245, 158, 11, 0.3),
    inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

/* Desktop Device */
.device-desktop {
  top: 0;
  left: 0;
  width: 85%;
  z-index: 3;
  padding: clamp(0.875rem, 2vw, 1.25rem);
  animation: floatDevice 6s ease-in-out infinite;
}

/* Tablet Device */
.device-tablet {
  top: 50%;
  right: 0;
  width: 50%;
  z-index: 2;
  padding: clamp(0.75rem, 1.5vw, 1rem);
  transform: translateY(-30%) rotate(5deg);
  animation: floatDevice 6s ease-in-out infinite 1s;
}

/* Mobile Device */
.device-mobile {
  bottom: 0;
  left: 10%;
  width: 28%;
  z-index: 1;
  padding: clamp(0.5rem, 1.2vw, 0.75rem);
  transform: rotate(-5deg);
  animation: floatDevice 6s ease-in-out infinite 2s;
}

.device-screen {
  width: 100%;
  height: 100%;
  background: #0a0a0c;
  border-radius: clamp(6px, 1.2vw, 8px);
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
}

/* Mockup Header */
.mockup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(0.5rem, 1.2vw, 0.75rem) clamp(0.75rem, 1.5vw, 1rem);
  background: rgba(20, 20, 24, 0.95);
  border-bottom: 1px solid rgba(245, 158, 11, 0.1);
}

.header-controls {
  display: flex;
  gap: clamp(0.375rem, 0.8vw, 0.5rem);
}

.mockup-dot {
  width: clamp(8px, 1.5vw, 12px);
  height: clamp(8px, 1.5vw, 12px);
  border-radius: 50%;
  transition: all 0.2s;
}

.mockup-dot.red {
  background: #ff5f57;
  box-shadow: 0 0 8px rgba(255, 95, 87, 0.5);
}

.mockup-dot.yellow {
  background: #ffbd2e;
  box-shadow: 0 0 8px rgba(255, 189, 46, 0.5);
}

.mockup-dot.green {
  background: #28c940;
  box-shadow: 0 0 8px rgba(40, 201, 64, 0.5);
}

.device:hover .mockup-dot {
  transform: scale(1.1);
}

.header-title {
  font-size: clamp(0.65rem, 1.2vw, 0.75rem);
  font-weight: 600;
  color: var(--gray-400);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.header-actions {
  display: flex;
  gap: clamp(0.75rem, 1.5vw, 1rem);
}

.header-icon {
  color: var(--gray-500);
  font-size: clamp(0.75rem, 1.2vw, 0.875rem);
  cursor: pointer;
  transition: color 0.2s;
}

.header-icon:hover {
  color: var(--accent);
}

/* Device Animations */
@keyframes floatDevice {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-10px) rotate(1deg);
  }
}

/* Tablet */
@media (max-width: 1024px) {
  .device-tablet,
  .device-mobile {
    display: none;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .solution-visual {
    display: none;
  }
}

@media (max-width: 768px) {
  .solution-grid {
    grid-template-columns: 1fr;
  }
}

/* Features List */
.features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 2.5vw, 1.5rem);
  order: 1;
}

.feature-item {
  display: flex;
  gap: clamp(1rem, 2vw, 1.5rem);
  animation: fadeInUp 0.6s ease;
  animation-fill-mode: both;
}

.feature-number {
  flex-shrink: 0;
  width: clamp(42px, 8vw, 48px);
  height: clamp(42px, 8vw, 48px);
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.2),
    rgba(251, 191, 36, 0.1)
  );
  border: 2px solid rgba(245, 158, 11, 0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-mono);
  transition: all 0.3s;
}

.feature-item:hover .feature-number {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.3),
    rgba(251, 191, 36, 0.15)
  );
}

.feature-content h3 {
  font-size: clamp(1.125rem, 2.2vw, 1.25rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--gray-100);
  letter-spacing: -0.01em;
}

.feature-content p {
  color: var(--gray-400);
  line-height: 1.7;
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
}

/* Responsive Solution */
@media (min-width: 1440px) {
  .devices-stack {
    height: 700px;
  }

  .device-desktop {
    width: 90%;
  }
  .device-tablet {
    width: 55%;
  }
  .device-mobile {
    width: 30%;
  }
}

@media (max-width: 1023px) {
  .solution-grid {
    grid-template-columns: 1fr;
  }

  .solution-visual {
    order: 1;
    max-width: 600px;
    margin: 0 auto;
  }

  .features-list {
    order: 2;
    max-width: 700px;
    margin: 0 auto;
  }

  .devices-stack {
    height: 500px;
  }

  .device-desktop {
    width: 90%;
  }
  .device-tablet {
    width: 55%;
    top: 45%;
  }
  .device-mobile {
    width: 32%;
  }
}

@media (max-width: 767px) {
  .devices-stack {
    height: 450px;
  }

  .device-desktop {
    width: 95%;
    padding: 0.875rem;
  }

  .device-tablet {
    width: 60%;
    top: 40%;
    padding: 0.75rem;
  }

  .device-mobile {
    width: 35%;
    left: 5%;
    padding: 0.625rem;
  }
}

@media (max-width: 599px) {
  .devices-stack {
    height: 380px;
  }

  .device-desktop {
    padding: 0.75rem;
  }

  .device-tablet {
    padding: 0.625rem;
  }
}

@media (max-width: 479px) {
  .devices-stack {
    height: 340px;
  }

  .device-desktop {
    width: 100%;
    padding: 0.625rem;
  }

  .device-tablet {
    width: 65%;
    padding: 0.625rem;
  }

  .device-mobile {
    width: 38%;
  }
}

/* ==================== POS INTERFACE ==================== */
.pos-interface {
  display: flex;
  height: 100%;
  min-height: 300px;
  background: linear-gradient(135deg, #1a1a1e 0%, #16161a 100%);
}

/* Sidebar */
.pos-sidebar {
  width: clamp(50px, 10vw, 70px);
  background: rgba(20, 20, 24, 0.6);
  border-right: 1px solid rgba(245, 158, 11, 0.08);
  padding: clamp(0.375rem, 1vw, 0.5rem);
  display: flex;
  flex-direction: column;
  gap: clamp(0.2rem, 0.5vw, 0.25rem);
}

.sidebar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: clamp(0.5rem, 1.2vw, 0.75rem) clamp(0.25rem, 0.8vw, 0.5rem);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: clamp(0.55rem, 1vw, 0.6rem);
  color: var(--gray-500);
  font-weight: 500;
}

.sidebar-item:hover {
  background: rgba(245, 158, 11, 0.08);
  color: var(--accent);
}

.sidebar-item.active {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.2);
}

.sidebar-icon {
  font-size: clamp(1rem, 2vw, 1.25rem);
  filter: grayscale(1);
  transition: filter 0.2s;
}

.sidebar-item:hover .sidebar-icon,
.sidebar-item.active .sidebar-icon {
  filter: grayscale(0);
}

/* Main Content */
.pos-main {
  flex: 1;
  padding: clamp(0.625rem, 1.5vw, 1rem);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: clamp(0.625rem, 1.5vw, 1rem);
}

/* Stats Cards */
.pos-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: clamp(0.5rem, 1.2vw, 0.75rem);
}

.stat-card {
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.1);
  border-radius: 8px;
  padding: clamp(0.5rem, 1.2vw, 0.75rem);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-card:hover {
  border-color: rgba(245, 158, 11, 0.3);
  transform: translateY(-2px);
}

.stat-label {
  font-size: clamp(0.6rem, 1vw, 0.65rem);
  color: var(--gray-500);
  margin-bottom: 0.25rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.25rem;
  font-family: var(--font-mono);
}

.stat-trend {
  font-size: clamp(0.65rem, 1vw, 0.7rem);
  font-weight: 600;
  font-family: var(--font-mono);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.stat-trend.up {
  color: #10b981;
}

.stat-trend.up::before {
  content: "↗";
}

.stat-trend.down {
  color: #ef4444;
}

.stat-trend.down::before {
  content: "↘";
}

/* Chart */
.pos-chart {
  background: rgba(245, 158, 11, 0.03);
  border: 1px solid rgba(245, 158, 11, 0.1);
  border-radius: 8px;
  padding: clamp(0.625rem, 1.2vw, 0.75rem);
  flex: 1;
  min-height: 0;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: clamp(0.5rem, 1vw, 0.75rem);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chart-title {
  font-size: clamp(0.7rem, 1.2vw, 0.75rem);
  font-weight: 600;
  color: var(--gray-300);
}

.chart-time {
  font-size: clamp(0.6rem, 1vw, 0.65rem);
  color: var(--gray-500);
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.chart-time::before {
  content: "●";
  color: #10b981;
  animation: pulse 2s ease-in-out infinite;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(0.375rem, 1vw, 0.5rem);
  height: clamp(60px, 12vw, 80px);
  padding: 0.5rem 0;
}

.chart-bar {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
  position: relative;
  min-width: 0;
}

.bar-fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(245, 158, 11, 0.4),
    rgba(245, 158, 11, 0.15)
  );
  border-radius: 4px 4px 0 0;
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-bottom: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.bar-fill::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  animation: shimmer 3s infinite;
}

.chart-bar:hover .bar-fill {
  background: linear-gradient(
    180deg,
    rgba(245, 158, 11, 0.6),
    rgba(245, 158, 11, 0.25)
  );
  border-color: rgba(245, 158, 11, 0.5);
}

.bar-fill.active {
  background: linear-gradient(
    180deg,
    rgba(245, 158, 11, 0.7),
    rgba(245, 158, 11, 0.3)
  );
  border-color: rgba(245, 158, 11, 0.6);
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.4);
  animation: pulseBar 2s ease-in-out infinite;
}

@keyframes pulseBar {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.bar-label {
  font-size: clamp(0.55rem, 1vw, 0.6rem);
  color: var(--gray-500);
  font-family: var(--font-mono);
  margin-top: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Actions */
.pos-actions {
  display: flex;
  gap: clamp(0.375rem, 1vw, 0.5rem);
  flex-wrap: wrap;
}

.action-btn {
  flex: 1;
  min-width: fit-content;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: clamp(0.5rem, 1.2vw, 0.625rem);
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 6px;
  color: var(--accent);
  font-size: clamp(0.65rem, 1.2vw, 0.7rem);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.action-btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 100%;
  height: 100%;
  background: rgba(245, 158, 11, 0.1);
  border-radius: 50%;
  transition: transform 0.4s;
}

.action-btn:hover::before {
  transform: translate(-50%, -50%) scale(2);
}

.action-btn:hover {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

.action-btn.primary {
  background: rgba(245, 158, 11, 0.2);
  border-color: rgba(245, 158, 11, 0.4);
}

.action-btn.primary:hover {
  background: rgba(245, 158, 11, 0.3);
  border-color: rgba(245, 158, 11, 0.6);
}

.btn-icon {
  font-size: clamp(0.75rem, 1.2vw, 0.875rem);
}

/* Responsive POS */
@media (max-width: 767px) {
  .pos-sidebar {
    width: 50px;
  }

  .sidebar-item span {
    display: none;
  }

  .pos-stats {
    grid-template-columns: 1fr;
  }

  .stat-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .chart-bars {
    height: 60px;
  }

  .pos-actions {
    flex-direction: column;
  }

  .action-btn {
    width: 100%;
  }
}

/* ==================== TABLET INTERFACE ==================== */
.tablet-interface {
  height: 100%;
  min-height: 250px;
  background: linear-gradient(135deg, #1a1a1e 0%, #16161a 100%);
  display: flex;
  flex-direction: column;
}

/* Tablet Topbar */
.tablet-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: clamp(0.625rem, 1.2vw, 0.75rem) clamp(0.75rem, 1.5vw, 1rem);
  background: rgba(20, 20, 24, 0.6);
  border-bottom: 1px solid rgba(245, 158, 11, 0.08);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.2vw, 0.75rem);
}

.menu-icon {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--accent);
  cursor: pointer;
  transition: transform 0.2s;
}

.menu-icon:hover {
  transform: rotate(90deg);
}

.topbar-title {
  font-size: clamp(0.8rem, 1.5vw, 0.875rem);
  font-weight: 600;
  color: var(--gray-300);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.2vw, 0.75rem);
}

.notification-badge {
  background: #ef4444;
  color: white;
  font-size: clamp(0.6rem, 1vw, 0.65rem);
  font-weight: 700;
  padding: 0.125rem clamp(0.3rem, 0.8vw, 0.375rem);
  border-radius: 10px;
  animation: bounce 2s ease-in-out infinite;
}

.user-avatar {
  width: clamp(24px, 4vw, 28px);
  height: clamp(24px, 4vw, 28px);
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.3),
    rgba(251, 191, 36, 0.2)
  );
  border: 1.5px solid rgba(245, 158, 11, 0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(0.7rem, 1.2vw, 0.75rem);
  font-weight: 700;
  color: var(--accent);
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.user-avatar:hover {
  transform: scale(1.1);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
}

.tablet-content {
  flex: 1;
  padding: clamp(0.75rem, 1.5vw, 1rem);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: clamp(0.75rem, 1.5vw, 1rem);
}

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: clamp(0.5rem, 1vw, 0.625rem);
}

.kpi-card {
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.1);
  border-radius: 8px;
  padding: clamp(0.625rem, 1.2vw, 0.75rem);
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1vw, 0.625rem);
  transition: all 0.3s;
}

.kpi-card:hover {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.2);
  transform: translateY(-2px);
}

.kpi-icon {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  filter: grayscale(0.3);
  transition: filter 0.3s;
  flex-shrink: 0;
}

.kpi-card:hover .kpi-icon {
  filter: grayscale(0);
  transform: scale(1.1);
}

.kpi-info {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.kpi-value {
  font-size: clamp(0.875rem, 1.8vw, 1rem);
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
}

.kpi-label {
  font-size: clamp(0.6rem, 1vw, 0.625rem);
  color: var(--gray-500);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Activity List */
.activity-list {
  background: rgba(245, 158, 11, 0.03);
  border: 1px solid rgba(245, 158, 11, 0.1);
  border-radius: 8px;
  padding: clamp(0.625rem, 1.2vw, 0.75rem);
  display: flex;
  flex-direction: column;
  gap: clamp(0.5rem, 1vw, 0.625rem);
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.activity-item {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1vw, 0.625rem);
  padding: clamp(0.5rem, 1vw, 0.625rem);
  background: rgba(20, 20, 24, 0.4);
  border-radius: 6px;
  transition: all 0.2s;
}

.activity-item:hover {
  background: rgba(20, 20, 24, 0.6);
  transform: translateX(4px);
}

.activity-dot {
  width: clamp(6px, 1.2vw, 8px);
  height: clamp(6px, 1.2vw, 8px);
  border-radius: 50%;
  flex-shrink: 0;
}

.activity-dot.success {
  background: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
  animation: pulse 2s ease-in-out infinite;
}

.activity-dot.warning {
  background: #f59e0b;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
  animation: pulse 2s ease-in-out infinite 0.5s;
}

.activity-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.activity-text {
  font-size: clamp(0.7rem, 1.2vw, 0.75rem);
  color: var(--gray-300);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.activity-time {
  font-size: clamp(0.6rem, 1vw, 0.625rem);
  color: var(--gray-500);
  font-family: var(--font-mono);
}

.activity-amount {
  font-size: clamp(0.8rem, 1.5vw, 0.875rem);
  font-weight: 700;
  color: #10b981;
  font-family: var(--font-mono);
  flex-shrink: 0;
  white-space: nowrap;
}

.activity-badge {
  width: clamp(18px, 3vw, 20px);
  height: clamp(18px, 3vw, 20px);
  background: rgba(245, 158, 11, 0.2);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(0.7rem, 1.2vw, 0.75rem);
  font-weight: 700;
  color: var(--accent);
  animation: bounce 2s ease-in-out infinite;
  flex-shrink: 0;
}

/* Responsive Tablet Interface */
@media (max-width: 599px) {
  .kpi-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  }

  .activity-text {
    font-size: 0.7rem;
  }
}

/* ==================== MOBILE INTERFACE ==================== */
.mobile-interface {
  height: 100%;
  min-height: 200px;
  background: linear-gradient(135deg, #1a1a1e 0%, #16161a 100%);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Mobile Statusbar */
.mobile-statusbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: clamp(0.25rem, 0.8vw, 0.375rem) clamp(0.625rem, 1.2vw, 0.75rem);
  background: rgba(20, 20, 24, 0.8);
  font-size: clamp(0.6rem, 1vw, 0.625rem);
  color: var(--gray-400);
  border-bottom: 1px solid rgba(245, 158, 11, 0.05);
}

.statusbar-time {
  font-family: var(--font-mono);
  font-weight: 600;
}

.statusbar-icons {
  display: flex;
  gap: clamp(0.3rem, 0.8vw, 0.375rem);
  align-items: center;
}

.status-icon {
  font-size: clamp(0.7rem, 1.2vw, 0.75rem);
}

/* Mobile Header */
.mobile-header {
  padding: clamp(0.625rem, 1.2vw, 0.75rem) clamp(0.75rem, 1.5vw, 1rem);
  border-bottom: 1px solid rgba(245, 158, 11, 0.08);
}

.mobile-title {
  font-size: clamp(0.8rem, 1.5vw, 0.875rem);
  font-weight: 700;
  color: var(--gray-200);
}

/* Mobile Content */
.mobile-content {
  flex: 1;
  padding: clamp(0.75rem, 1.5vw, 1rem);
  display: flex;
  flex-direction: column;
  gap: clamp(0.5rem, 1vw, 0.625rem);
  overflow-y: auto;
}

/* Sale Cards */
.sale-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: clamp(0.75rem, 1.5vw, 0.875rem);
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.1);
  border-radius: 8px;
  transition: all 0.2s;
  cursor: pointer;
  gap: 0.75rem;
}

.sale-card:hover {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.2);
  transform: translateX(4px);
}

.sale-card:active {
  transform: scale(0.98);
}

.sale-product {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1vw, 0.625rem);
  flex: 1;
  min-width: 0;
}

.product-icon {
  font-size: clamp(1.35rem, 2.5vw, 1.5rem);
  filter: grayscale(0.2);
  transition: filter 0.2s;
  flex-shrink: 0;
}

.sale-card:hover .product-icon {
  filter: grayscale(0);
}

.product-name {
  font-size: clamp(0.8rem, 1.5vw, 0.875rem);
  font-weight: 600;
  color: var(--gray-300);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sale-price {
  font-size: clamp(0.8rem, 1.5vw, 0.875rem);
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
  flex-shrink: 0;
}

/* Mobile FAB */
.mobile-fab {
  position: absolute;
  bottom: clamp(0.75rem, 2vw, 1rem);
  right: clamp(0.75rem, 2vw, 1rem);
  width: clamp(44px, 8vw, 48px);
  height: clamp(44px, 8vw, 48px);
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.3),
    rgba(251, 191, 36, 0.2)
  );
  border: 2px solid rgba(245, 158, 11, 0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
  cursor: pointer;
  transition: all 0.3s;
  animation: floatFab 3s ease-in-out infinite;
  z-index: 10;
}

.mobile-fab:hover {
  transform: scale(1.1) rotate(90deg);
  box-shadow: 0 6px 24px rgba(245, 158, 11, 0.5);
}

.fab-icon {
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  color: var(--accent);
  font-weight: 700;
}

@keyframes floatFab {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

/* ==================== FEATURES GRID SECTION ==================== */
.features {
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(180deg, var(--dark-900) 0%, var(--dark-800) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--gap-md);
  margin-top: clamp(2rem, 5vw, 4rem);
}

.feature-card {
  background: var(--dark-700);
  border: 1px solid rgba(245, 158, 11, 0.1);
  border-radius: clamp(12px, 2vw, 16px);
  padding: clamp(1.5rem, 3vw, 2rem);
  transition: var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(245, 158, 11, 0.1) 0%,
    transparent 70%
  );
  opacity: 0;
  transition: var(--transition-slow);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 20px 60px rgba(245, 158, 11, 0.2);
}

.feature-icon {
  width: clamp(48px, 8vw, 55px);
  height: clamp(48px, 8vw, 55px);
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.2),
    rgba(249, 115, 22, 0.1)
  );
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(1.5rem, 3vw, 1.75rem);
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
  transition: all 0.3s;
}

.feature-card:hover .feature-icon {
  transform: scale(1.05) rotate(-5deg);
}

.feature-card h3 {
  font-size: clamp(1.125rem, 2.2vw, 1.35rem);
  font-weight: 800;
  margin-bottom: clamp(0.75rem, 1.5vw, 1rem);
  color: var(--gray-100);
}

.feature-card p {
  color: var(--gray-400);
  line-height: 1.7;
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
}

/* ==================== STATS SECTION ==================== */
.stats {
  padding: var(--section-padding) var(--container-padding);
  background: var(--dark-900);
  position: relative;
}

.stats::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at center,
    rgba(245, 158, 11, 0.05) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: var(--gap-lg);
  margin-top: clamp(2rem, 5vw, 4rem);
  position: relative;
  z-index: 1;
}

.stat-item {
  text-align: center;
  animation: scaleIn 0.6s ease;
  animation-fill-mode: both;
}

.stat-value {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 600;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: clamp(0.75rem, 1.5vw, 1rem);
  display: inline-block;
}

.stat-label {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--gray-400);
  font-weight: 600;
}

/* Responsive Stats */
@media (max-width: 768px) {
  .stats-grid {
    gap: var(--gap-md);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--gap-sm);
  }
}

/* ==================== CTA SECTION ==================== */
.cta-section {
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(135deg, var(--dark-800), var(--dark-900));
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(245, 158, 11, 0.1) 0%,
    transparent 50%
  );
  animation: rotate 30s linear infinite;
  pointer-events: none;
}

.cta-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  background: linear-gradient(135deg, var(--dark-700), var(--dark-800));
  border: 2px solid rgba(245, 158, 11, 0.3);
  border-radius: clamp(20px, 4vw, 30px);
  padding: clamp(2.5rem, 6vw, 4rem) clamp(2rem, 4vw, 3rem);
  position: relative;
  z-index: 1;
  box-shadow: var(--glow);
}

.cta-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 900;
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
  line-height: 1.2;
}

.cta-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--gray-400);
  margin-bottom: clamp(2rem, 4vw, 3rem);
  line-height: 1.6;
}

.cta-form {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1rem);
  max-width: 600px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.cta-input {
  flex: 1;
  min-width: min(100%, 280px);
  padding: clamp(0.875rem, 2vw, 1.125rem) clamp(1.25rem, 3vw, 1.75rem);
  background: var(--dark-900);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 10px;
  color: var(--gray-100);
  font-size: clamp(0.95rem, 1.5vw, 1rem);
  transition: var(--transition);
}

.cta-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.cta-input::placeholder {
  color: var(--gray-600);
}

/* Responsive CTA */
@media (max-width: 600px) {
  .cta-form {
    flex-direction: column;
  }

  .cta-input {
    width: 100%;
  }

  .btn-primary {
    width: 100%;
  }
}

/* ==================== FOOTER ==================== */
.footer {
  padding: clamp(3rem, 6vw, 4rem) var(--container-padding)
    clamp(1.5rem, 3vw, 2rem);
  background: var(--dark-800);
  border-top: 1px solid rgba(245, 158, 11, 0.1);
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: clamp(2rem, 4vw, 3rem);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

/* Footer Brand */
.footer-brand {
  max-width: 350px;
}

.footer-logo {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: clamp(0.75rem, 1.5vw, 1rem);
  display: inline-block;
}

.footer-description {
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
}

/* Social Icons */
.footer-social {
  display: flex;
  gap: clamp(0.75rem, 1.5vw, 1rem);
  flex-wrap: wrap;
}

.social-icon {
  width: clamp(38px, 6vw, 40px);
  height: clamp(38px, 6vw, 40px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 12px;
  color: var(--accent);
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.social-icon svg {
  width: clamp(18px, 3vw, 20px);
  height: clamp(18px, 3vw, 20px);
  transition: transform 0.3s ease;
}

.social-icon:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: rgba(245, 158, 11, 0.4);
  transform: translateY(-3px);
}

.social-icon:hover svg {
  transform: scale(1.1);
}

/* Footer Sections */
.footer-section h4 {
  font-size: clamp(1rem, 2vw, 1.15rem);
  font-weight: 700;
  margin-bottom: clamp(1rem, 2vw, 1.25rem);
  color: var(--gray-100);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: clamp(0.5rem, 1vw, 0.75rem);
}

.footer-links li {
  line-height: 1.4;
}

.footer-links a {
  color: var(--gray-400);
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
  transition: var(--transition);
  display: inline-block;
  position: relative;
}

.footer-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.footer-links a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.footer-links a:hover::after {
  width: 100%;
}

/* Footer Bottom */
.footer-bottom {
  padding-top: clamp(1.5rem, 3vw, 2rem);
  border-top: 1px solid rgba(245, 158, 11, 0.1);
  text-align: center;
  color: var(--gray-600);
  font-size: clamp(0.8rem, 1.5vw, 0.9rem);
  line-height: 1.6;
}

.footer-bottom p {
  margin: 0;
}

/* Responsive Footer */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-section {
    text-align: center;
  }

  .footer-links {
    align-items: center;
  }

  .footer-social {
    justify-content: center;
  }

  .footer-brand {
    text-align: center;
  }
}

/* ==================== UTILIDADES GLOBALES ==================== */

/* Contenedor genérico */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

/* Texto truncado */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Visibilidad responsiva */
.hide-mobile {
  display: block;
}

.show-mobile {
  display: none;
}

@media (max-width: 768px) {
  .hide-mobile {
    display: none;
  }

  .show-mobile {
    display: block;
  }
}

/* Espaciado responsive */
.section-padding {
  padding: var(--section-padding) 0;
}

.container-padding {
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ==================== ACCESIBILIDAD ==================== */

/* Reducir movimiento para usuarios que lo prefieren */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Focus visible para teclado */
*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Skip to main content */
.skip-to-main {
  position: absolute;
  left: -9999px;
  z-index: 999;
  padding: 1em;
  background-color: var(--dark-800);
  color: var(--gray-100);
  text-decoration: none;
  border: 2px solid var(--primary);
}

.skip-to-main:focus {
  left: 50%;
  transform: translateX(-50%);
  top: 1rem;
}

/* ==================== OPTIMIZACIONES DE RENDIMIENTO ==================== */

/* GPU Acceleration para animaciones */
.hero-content,
.hero-visual,
.mockup-container,
.device,
.problem-card,
.feature-card {
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Lazy loading de imágenes */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
  opacity: 1;
}

/* ==================== PRINT STYLES ==================== */
@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  .navbar,
  .footer,
  .cta-section,
  .mobile-fab,
  .floating-badge {
    display: none !important;
  }

  a,
  a:visited {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
  }

  img {
    max-width: 100% !important;
    page-break-inside: avoid;
  }

  h2,
  h3 {
    page-break-after: avoid;
  }
}

/* ==================== MEDIA QUERIES CONSOLIDADAS ==================== */

/* Extra Large Devices (1920px+) */
@media (min-width: 1920px) {
  :root {
    font-size: 112.5%; /* 18px base */
  }

  .hero-container,
  .section-container,
  .footer-container {
    max-width: 1600px;
  }
}

/* Large Devices (1440px - 1919px) */
@media (min-width: 1440px) and (max-width: 1919px) {
  :root {
    font-size: 106.25%; /* 17px base */
  }
}

/* Desktop (1024px - 1439px) */
@media (min-width: 1024px) and (max-width: 1439px) {
  :root {
    font-size: 100%; /* 16px base */
  }
}

/* Tablet Landscape (900px - 1023px) */
@media (min-width: 900px) and (max-width: 1023px) {
  :root {
    --section-padding: clamp(3rem, 6vw, 6rem);
  }
}

/* Tablet Portrait (600px - 899px) */
@media (min-width: 600px) and (max-width: 899px) {
  :root {
    --section-padding: clamp(2.5rem, 5vw, 5rem);
  }

  .hero-container {
    gap: var(--gap-md);
  }
}

/* Mobile Large (480px - 599px) */
@media (min-width: 480px) and (max-width: 599px) {
  :root {
    font-size: 100%;
    --section-padding: clamp(2rem, 4vw, 4rem);
  }
}

/* Mobile Medium (375px - 479px) */
@media (min-width: 375px) and (max-width: 479px) {
  :root {
    font-size: 100%;
  }
}

/* Mobile Small (< 375px) */
@media (max-width: 374px) {
  :root {
    font-size: 93.75%; /* 15px base */
    --container-padding: 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }
}

/* Landscape Orientation */
@media (max-height: 600px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: clamp(5rem, 10vh, 6rem) var(--container-padding)
      clamp(2rem, 4vh, 3rem);
  }

  .devices-stack {
    height: clamp(280px, 50vw, 350px);
  }

  .section-header {
    margin-bottom: 2rem;
  }
}

/* High Resolution Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* Dark Mode Support (si se implementa en el futuro) */
@media (prefers-color-scheme: dark) {
  /* Ya estamos en dark mode por defecto */
}

/* ==================== ESTADOS DE HOVER PARA TOUCH DEVICES ==================== */
@media (hover: none) and (pointer: coarse) {
  /* Eliminar efectos hover en dispositivos táctiles */
  .btn-primary:hover,
  .btn-secondary:hover,
  .nav-link:hover,
  .cta-nav:hover {
    transform: none;
  }

  /* Mantener solo efectos de active/tap */
  .btn-primary:active {
    transform: scale(0.98);
  }

  .sale-card:active,
  .action-btn:active {
    transform: scale(0.98);
  }
}

/* ==================== SOPORTE PARA PANTALLAS PLEGABLES ==================== */
@media (min-width: 600px) and (max-width: 900px) and (orientation: portrait) {
  .solution-grid {
    grid-template-columns: 1fr;
  }

  .devices-stack {
    max-width: 500px;
    margin: 0 auto;
  }
}

/* ==================== FIN DEL CSS ==================== */