/* ============================================
   FAOS Web — Design System & Global Styles
   ============================================ */


/* --- CSS Custom Properties --- */
:root {
  /* Colors — Dark Theme */
  --color-bg:             hsl(225, 25%, 8%);
  --color-bg-alt:         hsl(225, 22%, 6%);
  --color-surface:        hsl(225, 20%, 12%);
  --color-surface-hover:  hsl(225, 18%, 16%);
  --color-surface-border: hsl(225, 15%, 18%);
  --color-glass:          hsla(225, 20%, 14%, 0.6);
  --color-glass-border:   hsla(225, 20%, 30%, 0.25);

  /* Primary Gradient */
  --color-primary:        hsl(230, 100%, 65%);
  --color-primary-dark:   hsl(230, 80%, 50%);
  --color-secondary:      hsl(280, 100%, 65%);
  --color-accent:         hsl(320, 100%, 65%);
  --gradient-primary:     linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  --gradient-accent:      linear-gradient(135deg, var(--color-primary), var(--color-accent));
  --gradient-hero:        linear-gradient(160deg, hsl(225, 25%, 8%) 0%, hsl(240, 30%, 12%) 40%, hsl(270, 25%, 14%) 70%, hsl(225, 25%, 8%) 100%);
  --gradient-text:        linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-accent));

  /* Text */
  --color-text:           hsl(0, 0%, 95%);
  --color-text-secondary: hsl(225, 15%, 60%);
  --color-text-muted:     hsl(225, 12%, 45%);

  /* Functional */
  --color-success:        hsl(150, 80%, 50%);
  --color-error:          hsl(0, 80%, 60%);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body:    'Inter', sans-serif;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;
  --text-7xl:  4.5rem;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Borders */
  --radius-sm:   0.375rem;
  --radius-md:   0.75rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:   0 2px 8px hsla(0, 0%, 0%, 0.2);
  --shadow-md:   0 4px 16px hsla(0, 0%, 0%, 0.25);
  --shadow-lg:   0 8px 32px hsla(0, 0%, 0%, 0.3);
  --shadow-xl:   0 16px 48px hsla(0, 0%, 0%, 0.35);
  --shadow-glow: 0 0 30px hsla(230, 100%, 65%, 0.15);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   300ms ease;
  --transition-slow:   500ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max: 1200px;
  --header-height: 80px;
}


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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}


/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: var(--text-6xl); letter-spacing: -0.02em; }
h2 { font-size: var(--text-4xl); letter-spacing: -0.01em; }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl);  }

p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


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

.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section-header .badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: hsla(230, 100%, 65%, 0.1);
  border: 1px solid hsla(230, 100%, 65%, 0.2);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  font-size: var(--text-lg);
}

.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }


/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.85rem 2rem;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 20px hsla(230, 100%, 65%, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px hsla(230, 100%, 65%, 0.4);
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, hsla(0, 0%, 100%, 0.15), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.btn-primary:hover::after {
  transform: translateX(100%);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-surface-border);
}

.btn-secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1.1rem 2.5rem;
  font-size: var(--text-lg);
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 0.6rem 1.5rem;
  font-size: var(--text-sm);
}

.btn-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}


/* --- Cards --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  border-color: hsla(230, 100%, 65%, 0.3);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-glass {
  background: var(--color-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-glass-border);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: hsla(230, 100%, 65%, 0.1);
  color: var(--color-primary);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
  transition: all var(--transition-base);
}

.card:hover .card-icon {
  background: var(--gradient-primary);
  color: white;
  transform: scale(1.05);
}

.card h3 {
  margin-bottom: var(--space-sm);
}

.card p {
  font-size: var(--text-sm);
}


/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: all var(--transition-base);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: hsla(225, 25%, 8%, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--color-surface-border);
}

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

.logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  margin-left: var(--space-md);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100vh;
  background: var(--color-surface);
  border-left: 1px solid var(--color-surface-border);
  padding: calc(var(--header-height) + var(--space-2xl)) var(--space-2xl) var(--space-2xl);
  transition: right var(--transition-slow);
  z-index: 1010;
  overflow-y: auto;
}

.mobile-nav.open {
  right: 0;
}

.mobile-nav > a {
  display: block;
  padding: var(--space-md) 0;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-surface-border);
  transition: all var(--transition-fast);
}

.mobile-nav > a:hover,
.mobile-nav > a.active {
  color: var(--color-text);
  padding-left: var(--space-md);
}

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: hsla(0, 0%, 0%, 0.5);
  z-index: 1009;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-overlay.active {
  opacity: 1;
}


/* --- Footer --- */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-surface-border);
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
  transition: all var(--transition-base);
}

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

.footer-column h3 {
  font-size: var(--text-base);
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.footer-column a {
  display: block;
  padding: var(--space-xs) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer-column a:hover {
  color: var(--color-primary);
  padding-left: var(--space-sm);
}

.footer-bottom {
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}


/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, hsla(230, 100%, 65%, 0.12), transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: 10%;
  right: 10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, hsla(280, 100%, 65%, 0.1), transparent 70%);
  border-radius: 50%;
  animation: float 10s ease-in-out infinite reverse;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: var(--text-7xl);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  line-height: 1.05;
}

.hero p {
  font-size: var(--text-xl);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
}

.hero .btn-group {
  margin-bottom: var(--space-3xl);
}

/* Hero Particles */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 50%;
  opacity: 0.3;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.3;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    transform: translateY(-100px) rotate(720deg);
    opacity: 0;
  }
}

/* Page Hero (inner pages) */
.page-hero {
  padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-4xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, hsla(230, 100%, 65%, 0.08), transparent 70%);
  border-radius: 50%;
}

.page-hero h1 {
  position: relative;
  margin-bottom: var(--space-md);
}

.page-hero p {
  position: relative;
  font-size: var(--text-xl);
  max-width: 600px;
  margin: 0 auto;
}


/* --- Stats Section --- */
.stats-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-surface-border);
  border-bottom: 1px solid var(--color-surface-border);
  padding: var(--space-3xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat-item h3 {
  font-size: var(--text-5xl);
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.stat-item h3 .counter-suffix {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item p {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}


/* --- CTA Section --- */
.cta-section {
  padding: var(--space-5xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4xl) var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.cta-box h2 {
  margin-bottom: var(--space-md);
}

.cta-box p {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}


/* --- Services Page --- */
.service-detail-card {
  padding: var(--space-3xl);
}

.service-detail-card .service-header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.service-header h2 {
  font-size: var(--text-2xl);
}

.service-detail-card .service-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: hsla(230, 100%, 65%, 0.1);
  font-size: var(--text-3xl);
  flex-shrink: 0;
  transition: all var(--transition-base);
}

.service-detail-card:hover .service-icon {
  background: var(--gradient-primary);
  transform: scale(1.05);
}

.service-detail-card .service-desc {
  margin-bottom: var(--space-xl);
}

.feature-list {
  display: grid;
  gap: var(--space-sm);
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
}

.feature-list li .check {
  color: var(--color-success);
  font-weight: 700;
  flex-shrink: 0;
}


/* --- Process Timeline --- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: var(--color-surface-border);
}

.timeline-step {
  text-align: center;
  position: relative;
}

.timeline-number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-surface-border);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 auto var(--space-lg);
  position: relative;
  z-index: 1;
  transition: all var(--transition-base);
}

.timeline-step:hover .timeline-number {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
  transform: scale(1.1);
}

.timeline-step h3 {
  margin-bottom: var(--space-xs);
}

.timeline-step p {
  font-size: var(--text-sm);
}


/* --- Tech Stack --- */
.tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}

.tech-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.tech-item:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.tech-item .tech-icon {
  font-size: var(--text-xl);
}


/* --- Portfolio --- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  transition: all var(--transition-base);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
}

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  transition: all var(--transition-base);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: hsla(230, 100%, 65%, 0.3);
}

.project-image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: hsla(225, 25%, 8%, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-info {
  padding: var(--space-xl);
}

.project-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: hsla(230, 100%, 65%, 0.1);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.project-info h2,
.project-info h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
}

.project-info p {
  font-size: var(--text-sm);
}

/* Portfolio animation states */
.project-card.hidden {
  display: none;
}

.project-card.fade-out {
  opacity: 0;
  transform: scale(0.95);
  transition: all 0.3s ease;
}

.project-card.fade-in {
  opacity: 1;
  transform: scale(1);
  transition: all 0.3s ease;
}


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

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
}

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

.pricing-card.featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: scale(1.03);
}

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

.pricing-card.featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.pricing-popular {
  display: inline-block;
  padding: var(--space-xs) var(--space-lg);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.pricing-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

.pricing-card .price {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.pricing-card .price span {
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--color-text-secondary);
}

.pricing-card .price-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.pricing-features {
  text-align: left;
  margin-bottom: var(--space-xl);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-bottom: 1px solid hsla(225, 15%, 18%, 0.5);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features .icon-check {
  color: var(--color-success);
  font-weight: 700;
}

.pricing-features .icon-x {
  color: var(--color-text-muted);
  font-weight: 700;
}

.pricing-card .btn {
  width: 100%;
}


/* --- FAQ --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: hsla(230, 100%, 65%, 0.2);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xl) var(--space-xl);
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  transition: color var(--transition-fast);
}

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

.faq-icon {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--color-primary);
}

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

.faq-answer-inner {
  padding: 0 var(--space-xl) var(--space-xl);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  font-size: var(--text-sm);
  line-height: 1.8;
}


/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-3xl);
}

.form-group {
  margin-bottom: var(--space-xl);
}

.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.form-input {
  width: 100%;
  padding: 0.85rem var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: all var(--transition-base);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px hsla(230, 100%, 65%, 0.15);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

textarea.form-input {
  min-height: 150px;
  resize: vertical;
}

select.form-input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  display: none;
}

.form-group.error .form-input {
  border-color: var(--color-error);
}

.form-group.error .form-error {
  display: block;
}

/* Contact Info Cards */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.contact-info-card:hover {
  border-color: hsla(230, 100%, 65%, 0.3);
  transform: translateY(-2px);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: hsla(230, 100%, 65%, 0.1);
  color: var(--color-primary);
  font-size: var(--text-xl);
  flex-shrink: 0;
}

.contact-info-card h2 {
  font-size: var(--text-base);
  margin-bottom: var(--space-xs);
}

.contact-info-card p {
  font-size: var(--text-sm);
}

.response-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: hsla(150, 80%, 50%, 0.1);
  border: 1px solid hsla(150, 80%, 50%, 0.2);
  border-radius: var(--radius-lg);
  color: var(--color-success);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-top: var(--space-md);
}


/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: hsla(0, 0%, 0%, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  text-align: center;
  max-width: 450px;
  width: 90%;
  transform: scale(0.9);
  transition: transform var(--transition-spring);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: hsla(150, 80%, 50%, 0.1);
  color: var(--color-success);
  font-size: var(--text-3xl);
  margin: 0 auto var(--space-xl);
}

.modal h3 {
  margin-bottom: var(--space-sm);
}

.modal p {
  margin-bottom: var(--space-xl);
}


/* --- About Page --- */
.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-text h2 {
  margin-bottom: var(--space-lg);
}

.about-text p {
  margin-bottom: var(--space-md);
}

.about-graphic {
  position: relative;
  height: 400px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-graphic::before {
  content: '';
  position: absolute;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: radial-gradient(circle, hsla(230, 100%, 65%, 0.3), transparent 70%);
  animation: float 6s ease-in-out infinite;
}

.about-graphic::after {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, hsla(280, 100%, 65%, 0.25), transparent 70%);
  animation: float 8s ease-in-out infinite reverse;
  top: 20%;
  right: 20%;
}

.about-graphic-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.about-graphic-inner .logo-large {
  font-family: var(--font-heading);
  font-size: var(--text-6xl);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-graphic-inner p {
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.value-card {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
}

.value-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: hsla(230, 100%, 65%, 0.1);
  font-size: var(--text-2xl);
  margin: 0 auto var(--space-lg);
  transition: all var(--transition-base);
}

.value-card:hover .value-icon {
  background: var(--gradient-primary);
  transform: scale(1.1) rotate(5deg);
}

.value-card h3 {
  margin-bottom: var(--space-sm);
  font-size: var(--text-lg);
}


/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.15s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.25s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.35s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.45s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.55s; }

.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}


/* --- Keyframe Animations --- */
@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(20px, -20px); }
  50% { transform: translate(-10px, -40px); }
  75% { transform: translate(-20px, -10px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

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


/* --- Responsive --- */
@media (max-width: 1024px) {
  h1 { font-size: var(--text-5xl); }
  h2 { font-size: var(--text-3xl); }

  .hero h1 { font-size: var(--text-5xl); }

  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }

  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-card.featured { grid-column: 1 / -1; max-width: 400px; margin: 0 auto; }

  .timeline { grid-template-columns: repeat(2, 1fr); }
  .timeline::before { display: none; }

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

  .about-story { grid-template-columns: 1fr; }
  .about-graphic { height: 300px; }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-2xl); }

  .hero h1 { font-size: var(--text-4xl); }
  .hero p { font-size: var(--text-base); }

  .container { padding: 0 var(--space-lg); }
  .section { padding: var(--space-3xl) 0; }

  .nav-links { display: none; }
  .nav-cta.desktop-only { display: none; }
  .menu-toggle {
    display: flex;
    position: fixed;
    top: 0;
    right: var(--space-lg);
    height: var(--header-height);
    justify-content: center;
    z-index: 1011;
  }
  .mobile-nav { display: block; }

  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }

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

  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.featured { max-width: none; transform: none; }
  .pricing-card.featured:hover { transform: translateY(-4px); }

  .contact-grid { grid-template-columns: 1fr; }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

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

  .timeline { grid-template-columns: 1fr; }

  .values-grid { grid-template-columns: 1fr; }

  .page-hero {
    padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-2xl);
  }
}

@media (max-width: 480px) {
  h1 { font-size: var(--text-3xl); }
  .hero h1 { font-size: var(--text-3xl); }

  .card { padding: var(--space-xl); }
  .service-detail-card { padding: var(--space-xl); }
}

/* --- FAOS Software Suite Section --- */
.suite-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 320px;
}

.suite-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: hsla(230, 100%, 65%, 0.1);
  border: 1px solid hsla(230, 100%, 65%, 0.2);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  width: fit-content;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.suite-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
}

.suite-features span {
  font-size: var(--text-xs);
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-surface-border);
}