﻿/* ========================================
   DataPulse Labs - Landing Page Stylesheet
   ======================================== */

/* --- CSS Variables / Design Tokens --- */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-secondary: #7c3aed;
  --color-dark: #0f172a;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;
  --color-white: #ffffff;
  --color-yellow: #f59e0b;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Base Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Section Common --- */
.section-padding {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-badge {
  display: inline-block;
  padding: 0.375rem 1.25rem;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-500);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: transparent;
}

.navbar-scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
  padding: 0.625rem 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-white);
  transition: color 0.3s;
  letter-spacing: -0.02em;
}

.navbar-scrolled .navbar-brand {
  color: var(--color-dark);
}

.navbar-brand i {
  font-size: 1.5rem;
  color: var(--color-primary-light);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar-links a {
  font-size: 0.938rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.2s;
  position: relative;
}

.navbar-scrolled .navbar-links a {
  color: var(--color-gray-600);
}

.navbar-links a:hover {
  color: var(--color-white);
}

.navbar-scrolled .navbar-links a:hover {
  color: var(--color-primary);
}

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary-light);
  border-radius: 2px;
  transition: width 0.3s;
}

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

.navbar-cta {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-white) !important;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.3s;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.navbar-cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all 0.3s;
}

.navbar-scrolled .hamburger span {
  background: var(--color-dark);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ========================================
   HERO SECTION
   ======================================== */
.gradient-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 30%, #3b82f6 60%, #1d4ed8 100%);
  overflow: hidden;
  padding: 7rem 0 4rem;
}

.gradient-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.gradient-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.gradient-hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.9);
  border-radius: 9999px;
  font-size: 0.813rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: #34d399;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-title span {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.5);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.15);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.25);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

.hero-image-wrapper {
  position: relative;
  animation: float 6s ease-in-out infinite;
}

.hero-image-wrapper img {
  border-radius: var(--radius-2xl);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
  width: 100%;
  border: 3px solid rgba(255, 255, 255, 0.15);
}

.hero-floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: float 4s ease-in-out infinite;
}

.hero-floating-card.one {
  top: 8%;
  left: -8%;
  animation-delay: 0s;
}

.hero-floating-card.two {
  bottom: 12%;
  right: -6%;
  animation-delay: 2s;
}

.hero-floating-card .mini-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.125rem;
}

.hero-floating-card .mini-info .mini-value {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-dark);
  line-height: 1.2;
}

.hero-floating-card .mini-info .mini-label {
  font-size: 0.75rem;
  color: var(--color-gray-500);
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features-section {
  background: var(--color-gray-50);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 1.75rem;
  color: var(--color-primary);
  transition: all 0.3s;
}

.feature-card:hover .feature-icon {
  background: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.08);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 0.938rem;
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ========================================
   STATS SECTION
   ======================================== */
.stats-section {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  padding: 5rem 0;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(124, 58, 237, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.stat-item {
  text-align: center;
  padding: 2rem 1rem;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
}

.stat-number .stat-value {
  background: linear-gradient(135deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
}

.stat-label {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 500;
}

/* ========================================
   TESTIMONIALS SECTION
   ======================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-100);
  transition: all 0.3s;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(37, 99, 235, 0.15);
}

.testimonial-name {
  font-weight: 700;
  font-size: 1.063rem;
  color: var(--color-dark);
}

.testimonial-role {
  font-size: 0.813rem;
  color: var(--color-gray-500);
}

.testimonial-stars {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
  color: var(--color-yellow);
  font-size: 0.875rem;
}

.testimonial-text {
  font-size: 0.938rem;
  color: var(--color-gray-600);
  line-height: 1.75;
  font-style: italic;
}

.testimonial-text::before {
  content: '\201C';
  font-size: 2.5rem;
  color: var(--color-primary);
  opacity: 0.3;
  line-height: 0;
  vertical-align: -0.5rem;
  margin-right: 0.25rem;
}

/* ========================================
   FAQ SECTION
   ======================================== */
.faq-section {
  background: var(--color-gray-50);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: rgba(37, 99, 235, 0.3);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.75rem;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
}

.faq-question:hover {
  background: var(--color-gray-50);
}

.faq-question-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.faq-number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.faq-question h3 {
  font-size: 1.063rem;
  font-weight: 600;
  color: var(--color-dark);
}

.faq-icon {
  font-size: 1.125rem;
  color: var(--color-gray-400);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-inner {
  padding: 0 1.75rem 1.5rem 4.25rem;
  color: var(--color-gray-600);
  font-size: 0.938rem;
  line-height: 1.75;
}

/* ========================================
   CTA SECTION
   ======================================== */
.gradient-cta {
  position: relative;
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 40%, #7c3aed 100%);
  padding: 6rem 0;
  text-align: center;
  overflow: hidden;
}

.gradient-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}

.gradient-cta::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.12) 0%, transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
}

.cta-content p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2.5rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--color-gray-900);
  color: rgba(255, 255, 255, 0.65);
  padding: 5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 1.25rem 0;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  transition: all 0.3s;
}

.footer-social a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer h4 {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.footer ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer ul a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.2s;
}

.footer ul a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

/* Scroll-triggered animation */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   RESPONSIVE - Tablet (<1024px)
   ======================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.5rem;
  }

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

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

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

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

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

/* ========================================
   RESPONSIVE - Mobile (<768px)
   ======================================== */
@media (max-width: 768px) {
  .section-padding {
    padding: 3.5rem 0;
  }

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

  .section-subtitle {
    font-size: 1rem;
  }

  .section-header {
    margin-bottom: 2.5rem;
  }

  /* Navbar */
  .hamburger {
    display: flex;
  }

  .navbar-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    padding: 6rem 2rem 2rem;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    gap: 1.5rem;
  }

  .navbar-links.active {
    right: 0;
  }

  .navbar-links a {
    color: var(--color-gray-700) !important;
    font-size: 1.063rem;
  }

  .navbar-cta {
    text-align: center;
    width: 100%;
  }

  /* Overlay */
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
  }

  .nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
  }

  /* Hero */
  .gradient-hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

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

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-floating-card.one {
    left: 2%;
    top: 2%;
  }

  .hero-floating-card.two {
    right: 2%;
    bottom: 2%;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }

  /* Stats */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .stat-number {
    font-size: 2.25rem;
  }

  /* Testimonials */
  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 460px;
    margin: 0 auto;
  }

  /* FAQ */
  .faq-question {
    padding: 1.25rem 1.25rem;
  }

  .faq-question h3 {
    font-size: 0.938rem;
  }

  .faq-answer-inner {
    padding-left: 3.5rem;
    padding-right: 1.25rem;
  }

  /* CTA */
  .cta-content h2 {
    font-size: 1.75rem;
  }

  .gradient-cta {
    padding: 4rem 0;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ========================================
   RESPONSIVE - Small Mobile (<480px)
   ======================================== */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.625rem;
  }

  .hero-description {
    font-size: 0.938rem;
  }

  .hero-floating-card {
    display: none;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

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

  .stat-number {
    font-size: 1.75rem;
  }

  .features-grid {
    max-width: 100%;
  }

  .feature-card {
    padding: 1.75rem 1.25rem;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }

  .navbar-links {
    width: 100%;
    right: -100%;
  }
}
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