/* ============================================
   Smyorm Cloud — Design System & Styles
   ============================================ */

/* ---------- 1. CSS Custom Properties ---------- */
:root {
  /* Colors */
  --color-primary: #4F46E5;
  --color-primary-dark: #4338CA;
  --color-primary-light: #818CF8;
  --color-primary-bg: #EEF2FF;
  --color-accent: #7C3AED;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;

  /* Neutrals */
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;
  --color-white: #FFFFFF;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Borders & Shadows */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 50px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --container-max: 1200px;
  --header-height: 72px;
}

/* ---------- 2. Reset / Base ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-gray-900);
  line-height: 1.2;
  font-weight: 700;
}

/* ---------- 4. Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-16);
}

.section__badge {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  letter-spacing: 0.02em;
}

.section__title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.section__desc {
  font-size: var(--font-size-lg);
  color: var(--color-gray-500);
  max-width: 560px;
  margin: 0 auto;
}

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-6);
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--color-gray-700);
  border-color: var(--color-gray-300);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
  border-radius: var(--radius-lg);
}

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

/* ---------- 6. Header & Navigation ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.logo__icon {
  color: var(--color-primary);
}

.logo__text {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
  border-radius: 1px;
}

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

.nav__link:hover::after {
  width: 100%;
}

.header__cta {
  flex-shrink: 0;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  z-index: 1001;
}

.burger__line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-gray-700);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.burger--active .burger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger--active .burger__line:nth-child(2) {
  opacity: 0;
}

.burger--active .burger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 7. Hero Section ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-height) + var(--space-20)) 0 var(--space-24);
  background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 50%, #312E81 100%);
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero__shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}

.hero__shape--1 {
  width: 600px;
  height: 600px;
  background: var(--color-primary);
  top: -200px;
  right: -100px;
  animation: float 20s ease-in-out infinite;
}

.hero__shape--2 {
  width: 400px;
  height: 400px;
  background: var(--color-accent);
  bottom: -100px;
  left: -50px;
  animation: float 25s ease-in-out infinite reverse;
}

.hero__shape--3 {
  width: 300px;
  height: 300px;
  background: #06B6D4;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: float 18s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero__content {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.hero__title {
  font-size: var(--font-size-6xl);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
  flex-wrap: wrap;
}

.hero__actions .btn--outline {
  color: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.3);
}

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

.hero__stats {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.hero__stat-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- 8. Features Section ---------- */
.features {
  background: var(--color-gray-50);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-bg);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.feature-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.feature-card__text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ---------- 9. How It Works ---------- */
.how__steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-6);
}

.how__step {
  flex: 1;
  max-width: 320px;
  text-align: center;
  position: relative;
}

.how__step-num {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: 700;
  border-radius: 50%;
  margin: 0 auto var(--space-5);
}

.how__step-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-bg);
  border-radius: var(--radius-2xl);
  color: var(--color-primary);
  margin: 0 auto var(--space-5);
}

.how__step-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.how__step-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}

.how__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-300);
  padding-top: 72px;
  flex-shrink: 0;
}

/* ---------- 10. Dashboard Mockup ---------- */
.dashboard {
  background: var(--color-gray-50);
}

.mockup {
  max-width: 1000px;
  margin: 0 auto;
}

.mockup__browser {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
  border: 1px solid var(--color-gray-200);
  background: var(--color-white);
}

.mockup__toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-gray-100);
  border-bottom: 1px solid var(--color-gray-200);
}

.mockup__dots {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.mockup__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.mockup__dot--red { background: #EF4444; }
.mockup__dot--yellow { background: #F59E0B; }
.mockup__dot--green { background: #10B981; }

.mockup__address {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.mockup__address svg {
  color: var(--color-success);
  flex-shrink: 0;
  display: inline-block;
}

.mockup__app {
  display: flex;
  min-height: 400px;
}

/* Sidebar */
.mockup__sidebar {
  width: 220px;
  border-right: 1px solid var(--color-gray-200);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  background: var(--color-gray-50);
}

.mockup__sidebar-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--color-gray-900);
  margin-bottom: var(--space-6);
}

.mockup__sidebar-header svg {
  color: var(--color-primary);
  display: inline-block;
}

.mockup__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1;
}

.mockup__nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  transition: all var(--transition-fast);
}

.mockup__nav-item svg {
  display: inline-block;
  flex-shrink: 0;
}

.mockup__nav-item--active {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  font-weight: 600;
}

.mockup__storage {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-200);
}

.mockup__storage-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-gray-600);
  margin-bottom: var(--space-2);
}

.mockup__storage-bar {
  width: 100%;
  height: 6px;
  background: var(--color-gray-200);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: var(--space-1);
}

.mockup__storage-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 3px;
  transition: width 1s ease;
}

.mockup__storage-text {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
}

/* Main Area */
.mockup__main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.mockup__topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-gray-200);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.mockup__topbar-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  white-space: nowrap;
}

.mockup__topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.mockup__search-box {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  background: var(--color-gray-50);
}

.mockup__search-box svg {
  display: inline-block;
  flex-shrink: 0;
}

.mockup__btn-upload {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.mockup__btn-upload svg {
  display: inline-block;
}

/* Table */
.mockup__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.mockup__table th {
  text-align: left;
  padding: var(--space-3) var(--space-5);
  font-weight: 600;
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-gray-200);
}

.mockup__table td {
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-gray-600);
}

.mockup__table tr:hover td {
  background: var(--color-gray-50);
}

.mockup__file {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gray-800);
  font-weight: 500;
}

.mockup__file svg {
  display: inline-block;
  flex-shrink: 0;
}

/* ---------- 11. Pricing Section ---------- */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.pricing__card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  transition: all var(--transition-base);
}

.pricing__card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.pricing__card--featured {
  border-color: var(--color-primary);
  border-width: 2px;
  box-shadow: var(--shadow-xl);
  transform: scale(1.03);
}

.pricing__card--featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.pricing__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing__card-header {
  margin-bottom: var(--space-6);
}

.pricing__plan {
  font-size: var(--font-size-xl);
  font-weight: 800;
  margin-bottom: var(--space-1);
}

.pricing__desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.pricing__price {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin-bottom: var(--space-8);
}

.pricing__amount {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
}

.pricing__period {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
}

.pricing__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.pricing__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
}

.pricing__feature svg {
  flex-shrink: 0;
  color: var(--color-success);
  display: inline-block;
}

.pricing__feature--muted {
  color: var(--color-gray-400);
}

.pricing__feature--muted svg {
  color: var(--color-gray-300);
}

/* ---------- 12. Security Section ---------- */
.security__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.security__text {
  font-size: var(--font-size-lg);
  color: var(--color-gray-500);
  margin-bottom: var(--space-8);
  margin-top: var(--space-4);
  line-height: 1.7;
}

.security__points {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.security__point {
  display: flex;
  gap: var(--space-4);
}

.security__point-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ECFDF5;
  border-radius: var(--radius-lg);
  color: var(--color-success);
  flex-shrink: 0;
}

.security__point-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.security__point-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
}

.security__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.security__shield {
  position: relative;
  width: 180px;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, #ECFDF5 100%);
  border-radius: 50%;
}

.security__shield > svg:first-child {
  color: var(--color-primary-light);
  display: inline-block;
}

.security__shield-check {
  position: absolute;
  color: var(--color-success);
  display: inline-block;
}

.security__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.security__badge-item {
  padding: var(--space-2) var(--space-4);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
}

/* ---------- 13. FAQ Section ---------- */
.faq {
  background: var(--color-gray-50);
}

.faq__list {
  max-width: 768px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq__item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.faq__item--active {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-gray-800);
  text-align: left;
  gap: var(--space-4);
  transition: color var(--transition-fast);
}

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

.faq__chevron {
  flex-shrink: 0;
  transition: transform var(--transition-base);
  color: var(--color-gray-400);
  display: inline-block;
}

.faq__item--active .faq__chevron {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow) ease, padding var(--transition-slow) ease;
}

.faq__answer p {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ---------- 14. Footer ---------- */
.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-400);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__brand {
  max-width: 280px;
}

.footer__brand .logo {
  margin-bottom: var(--space-4);
}

.footer__brand .logo__icon {
  color: var(--color-primary-light);
}

.footer__brand .logo__text {
  color: var(--color-white);
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--space-5);
  line-height: 1.6;
}

.footer__socials {
  display: flex;
  gap: var(--space-3);
}

.footer__social {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-gray-800);
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
}

.footer__social svg {
  display: inline-block;
}

.footer__social:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-5);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-gray-800);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copy {
  font-size: var(--font-size-sm);
}

.footer__legal {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer__legal a {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

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

/* ---------- 15. Status Page ---------- */
.status {
  background: var(--color-white);
}

.status__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ECFDF5;
  border: 1px solid #A7F3D0;
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.status__indicator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.status__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status__dot--ok {
  background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

.status__label {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: #065F46;
}

.status__uptime-badge {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: #047857;
  background: rgba(16, 185, 129, 0.15);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
}

.status__services {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-10);
}

.status__service {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  transition: all var(--transition-base);
}

.status__service:hover {
  border-color: var(--color-gray-300);
  box-shadow: var(--shadow-sm);
}

.status__service-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.status__service-name {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-gray-800);
}

.status__service-status {
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status__service-status--ok {
  color: #065F46;
  background: #D1FAE5;
}

.status__bars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-2);
}

.status__bar {
  flex: 1;
  height: 28px;
  border-radius: 3px;
  transition: opacity var(--transition-fast);
}

.status__bar:hover {
  opacity: 0.75;
}

.status__bar--ok {
  background: var(--color-success);
}

.status__bar--warn {
  background: var(--color-warning);
}

.status__bar--error {
  background: var(--color-danger);
}

.status__bars-legend {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
}

.status__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.status__metric {
  text-align: center;
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-4);
}

.status__metric-value {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-1);
}

.status__metric-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

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

  .status__bar {
    height: 20px;
  }

  .status__service {
    padding: var(--space-4);
  }
}

/* ---------- 16. Registration Modal ---------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.modal-overlay--visible {
  display: flex;
  opacity: 1;
}

.modal {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  width: 100%;
  max-width: 440px;
  padding: var(--space-10) var(--space-8);
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-base);
}

.modal-overlay--visible .modal {
  transform: translateY(0) scale(1);
}

.modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
}

.modal__close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.modal__title {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-2);
}

.modal__desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  text-align: center;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.modal__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.modal__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.modal__label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
}

.modal__input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  outline: none;
}

.modal__input::placeholder {
  color: var(--color-gray-400);
}

.modal__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
  background: var(--color-white);
}

.modal__input--error {
  border-color: var(--color-danger);
}

.modal__input--error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.modal__success-view {
  text-align: center;
}

.modal__success-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ECFDF5;
  border-radius: 50%;
  color: var(--color-success);
  margin: 0 auto var(--space-6);
}

.modal__success-icon svg {
  display: inline-block;
}

.modal__success-view .modal__desc {
  margin-bottom: var(--space-6);
}

/* ---------- 17. Animations ---------- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children animation delays */
.features__grid .animate-on-scroll:nth-child(1) { transition-delay: 0ms; }
.features__grid .animate-on-scroll:nth-child(2) { transition-delay: 80ms; }
.features__grid .animate-on-scroll:nth-child(3) { transition-delay: 160ms; }
.features__grid .animate-on-scroll:nth-child(4) { transition-delay: 240ms; }
.features__grid .animate-on-scroll:nth-child(5) { transition-delay: 320ms; }
.features__grid .animate-on-scroll:nth-child(6) { transition-delay: 400ms; }

.pricing__grid .animate-on-scroll:nth-child(1) { transition-delay: 0ms; }
.pricing__grid .animate-on-scroll:nth-child(2) { transition-delay: 100ms; }
.pricing__grid .animate-on-scroll:nth-child(3) { transition-delay: 200ms; }

.how__steps .animate-on-scroll:nth-child(1) { transition-delay: 0ms; }
.how__steps .animate-on-scroll:nth-child(3) { transition-delay: 150ms; }
.how__steps .animate-on-scroll:nth-child(5) { transition-delay: 300ms; }

/* ---------- 18. Media Queries ---------- */

/* Tablet */
@media (max-width: 1024px) {
  .section__title {
    font-size: var(--font-size-3xl);
  }

  .hero__title {
    font-size: var(--font-size-5xl);
  }

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

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

  .pricing__card--featured {
    transform: none;
  }

  .pricing__card--featured:hover {
    transform: translateY(-4px);
  }

  .security__inner {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .security__visual {
    order: -1;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: var(--space-16) 0;
  }

  .section__header {
    margin-bottom: var(--space-10);
  }

  .section__title {
    font-size: var(--font-size-2xl);
  }

  .section__desc {
    font-size: var(--font-size-base);
  }

  /* Header mobile */
  .header__cta {
    display: none;
  }

  .burger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--color-white);
    box-shadow: var(--shadow-2xl);
    padding: calc(var(--header-height) + var(--space-6)) var(--space-6) var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
  }

  .nav--open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .nav__link {
    display: block;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
  }

  .nav__link:hover {
    background: var(--color-primary-bg);
  }

  .nav__link::after {
    display: none;
  }

  /* Mobile overlay */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 998;
  }

  .nav-overlay--visible {
    display: block;
  }

  /* Hero mobile */
  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + var(--space-12)) 0 var(--space-16);
  }

  .hero__title {
    font-size: var(--font-size-3xl);
  }

  .hero__title br {
    display: none;
  }

  .hero__subtitle {
    font-size: var(--font-size-base);
  }

  .hero__stats {
    gap: var(--space-6);
  }

  .hero__stat-value {
    font-size: var(--font-size-2xl);
  }

  .hero__actions .btn--lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
  }

  /* Features mobile */
  .features__grid {
    grid-template-columns: 1fr;
  }

  /* How It Works mobile */
  .how__steps {
    flex-direction: column;
    align-items: center;
  }

  .how__connector {
    padding-top: 0;
    transform: rotate(90deg);
  }

  /* Dashboard mobile */
  .mockup__sidebar {
    display: none;
  }

  .mockup__app {
    min-height: 300px;
  }

  .mockup__topbar {
    padding: var(--space-3) var(--space-4);
  }

  .mockup__search-box {
    display: none;
  }

  .mockup__table th,
  .mockup__table td {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-xs);
  }

  /* Pricing mobile */
  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .pricing__card--featured {
    transform: none;
  }

  /* Footer mobile */
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer__legal {
    flex-direction: column;
    gap: var(--space-2);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-4);
  }

  .hero__title {
    font-size: var(--font-size-2xl);
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__stats {
    flex-direction: column;
    gap: var(--space-4);
  }

  .feature-card {
    padding: var(--space-6);
  }

  .pricing__card {
    padding: var(--space-6);
  }

  .faq__question {
    padding: var(--space-4) var(--space-4);
    font-size: var(--font-size-sm);
  }

  .faq__answer p {
    padding: 0 var(--space-4) var(--space-4);
  }
}