/* ========================================
   APEX CREATIVE - Main Stylesheet
   Theme: Futuristic Creative Tech
   Backgrounds: #090B17 (dark) & #FFFFFF (light) ONLY
   ======================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400&display=swap');

/* ========================================
   CSS VARIABLES
   ======================================== */
:root {
  /* --- Backgrounds: only these two --- */
  --bg-dark:            #090B17;
  --bg-light:           #FFFFFF;

  /* Legacy aliases so existing markup keeps working */
  --bg-primary:         #090B17;
  --bg-secondary:       #FFFFFF;
  --bg-card:            #090B17;
  --bg-card-hover:      #090B17;

  /* --- Accent --- */
  --accent-blue:        #0EB8E6;
  --accent-electric:    #3B82F6;
  --accent-glow:        rgba(14, 184, 230, 0.3);

  /* --- Text on dark (#090B17) sections --- */
  --text-primary:       #FFFFFF;
  --text-secondary:     rgba(255,255,255,0.65);
  --text-muted:         rgba(255,255,255,0.38);

  /* --- Text on light (#FFFFFF) sections --- */
  --text-dark-primary:  #090B17;
  --text-dark-secondary:#374151;
  --text-dark-muted:    #6B7280;

  /* --- Borders --- */
  --border-dark:        rgba(14, 184, 230, 0.18);   /* on dark bg */
  --border-dark-hover:  rgba(14, 184, 230, 0.45);
  --border-light:       rgba(9, 11, 23, 0.12);      /* on white bg */
  --border-light-hover: rgba(9, 11, 23, 0.35);

  /* Keep old names pointing to dark-section values */
  --border-color:       rgba(14, 184, 230, 0.18);
  --border-hover:       rgba(14, 184, 230, 0.45);

  /* --- Gradients --- */
  --gradient-blue:      linear-gradient(135deg, #0EB8E6, #3B82F6);
  --gradient-card:      linear-gradient(135deg, rgba(14,184,230,0.06) 0%, rgba(59,130,246,0.06) 100%);

  /* --- Fonts --- */
  --font-main:    'Montserrat', sans-serif;
  --font-display: 'Montserrat', sans-serif;

  /* --- Layout --- */
  --nav-height:       80px;
  --section-padding:  100px 0;
  --transition:       all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast:  all 0.2s ease;
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-xl:   28px;

  /* --- Shadows --- */
  --shadow-glow:  0 0 40px rgba(14, 184, 230, 0.2);
  --shadow-card:  0 8px 32px rgba(0, 0, 0, 0.18);
  --shadow-light: 0 4px 24px rgba(9, 11, 23, 0.10);
}

/* ========================================
   RESET & BASE
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Montserrat', sans-serif !important;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

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

button {
  font-family: var(--font-main);
  cursor: pointer;
  border: none;
  outline: none;
}

input, textarea, select {
  font-family: var(--font-main);
  outline: none;
}

/* ========================================
   SCROLLBAR
   ======================================== */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track  { background: var(--bg-dark); }
::-webkit-scrollbar-thumb  { background: var(--accent-blue); border-radius: 3px; }

/* ========================================
   NOISE TEXTURE (very subtle)
   ======================================== */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: var(--transition);
  padding: 0 24px;
}

.navbar.scrolled {
  background: rgba(9, 11, 23, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-dark);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 44px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  position: relative;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.nav-links a:hover,
.nav-links a.active {
  color: #FFFFFF;
  background: rgba(14, 184, 230, 0.1);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  background: var(--accent-blue);
  border-radius: 50%;
}

.nav-cta {
  background: var(--gradient-blue) !important;
  color: #FFFFFF !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 700 !important;
  box-shadow: 0 0 20px rgba(14, 184, 230, 0.3);
  transition: var(--transition) !important;
}

.nav-cta:hover {
  box-shadow: 0 0 32px rgba(14, 184, 230, 0.55) !important;
  transform: translateY(-1px) !important;
  background: rgba(14, 184, 230, 0.15) !important;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: #FFFFFF;
  border-radius: 2px;
  transition: var(--transition);
}

.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height); left: 0;
  width: 100%;
  background: #090B17;
  border-bottom: 1px solid var(--border-dark);
  padding: 24px;
  z-index: 999;
  flex-direction: column;
  gap: 8px;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,0.65);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: var(--transition);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: #FFFFFF;
  background: rgba(14, 184, 230, 0.1);
  border-color: var(--border-dark);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--gradient-blue);
  color: #FFFFFF;
  box-shadow: 0 0 25px rgba(14, 184, 230, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(14, 184, 230, 0.6);
}

/* On dark background */
.btn-outline {
  background: transparent;
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
}

.btn-outline:hover {
  background: rgba(14, 184, 230, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(14, 184, 230, 0.25);
}

/* On white background */
.btn-outline-dark {
  background: transparent;
  color: #090B17;
  border: 2px solid #090B17;
}

.btn-outline-dark:hover {
  background: #090B17;
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: #FFFFFF;
  border: 1px solid var(--border-dark);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-dark-hover);
}

.btn-sm  { padding: 10px 22px; font-size: 12px; }
.btn-lg  { padding: 18px 44px; font-size: 15px; }

/* ========================================
   PAGES & LAYOUT
   ======================================== */
.page {
  display: none;
  min-height: 100vh;
  padding-top: var(--nav-height);
}

.page.active { display: block; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Dark section (default) --- */
.section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-dark);
}

/* --- Light section --- */
.section-light {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-light);
}

/* Alternating alias kept for existing markup */
.section-alt {
  background: var(--bg-light);
  padding: var(--section-padding);
  position: relative;
}

/* ========================================
   SECTION HEADERS
   ======================================== */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

/* Label pill — on dark bg */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(14, 184, 230, 0.1);
  border: 1px solid rgba(14, 184, 230, 0.25);
  border-radius: 50px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 20px;
}

/* Label pill — on light bg */
.section-label-dark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(9, 11, 23, 0.06);
  border: 1px solid rgba(9, 11, 23, 0.18);
  border-radius: 50px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #090B17;
  margin-bottom: 20px;
}

.section-label::before,
.section-label-dark::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent-blue);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-blue);
  animation: pulse 2s infinite;
}

/* Title — on dark bg */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.5vw, 50px);
  font-weight: 600;
  line-height: 1.15;
  color: #FFFFFF;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

/* Title — on light bg */
.section-title-dark {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.5vw, 50px);
  font-weight: 600;
  line-height: 1.15;
  color: #090B17;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-title .highlight,
.section-title-dark .highlight {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Subtitle — on dark bg */
.section-subtitle {
  font-size: 16px;
  color: rgba(255,255,255,0.6);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.75;
  font-weight: 400;
}

/* Subtitle — on light bg */
.section-subtitle-dark {
  font-size: 16px;
  color: #374151;
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.75;
  font-weight: 400;
}

/* ========================================
   GRID SYSTEMS
   ======================================== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ========================================
   CARDS — on dark background (#090B17)
   Card face = white, text = dark
   ======================================== */
.card {
  background: #FFFFFF;
  border: 1px solid rgba(9, 11, 23, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  color: #090B17;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-blue);
  opacity: 0;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-light), 0 0 0 1px rgba(14,184,230,0.3);
}

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

.card-icon {
  width: 56px; height: 56px;
  background: rgba(14, 184, 230, 0.1);
  border: 1px solid rgba(14, 184, 230, 0.25);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.card:hover .card-icon {
  background: rgba(14, 184, 230, 0.2);
  box-shadow: 0 0 16px rgba(14, 184, 230, 0.3);
}

.card-title {
  font-size: 20px; font-weight: 600;
  margin-bottom: 12px;
  color: #090B17;
}

.card-text {
  font-size: 15px;
  color: #374151;
  line-height: 1.7;
}

/* ========================================
   CARDS — on white background (#FFFFFF)
   Card face = dark navy, text = white
   ======================================== */
.card-dark {
  background: #090B17;
  border: 1px solid rgba(14, 184, 230, 0.18);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  color: #FFFFFF;
}

.card-dark::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-blue);
  opacity: 0;
  transition: var(--transition);
}

.card-dark:hover {
  transform: translateY(-4px);
  border-color: rgba(14,184,230,0.45);
  box-shadow: var(--shadow-glow);
}

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

/* ========================================
   BADGE / TAG
   ======================================== */
.badge {
  display: inline-flex;
  padding: 4px 12px;
  background: rgba(14, 184, 230, 0.1);
  border: 1px solid rgba(14, 184, 230, 0.25);
  border-radius: 50px;
  font-size: 11px; font-weight: 700;
  color: var(--accent-blue);
  letter-spacing: 0.5px;
}

/* ========================================
   GLOWING ORBS
   ======================================== */
.glow-orb { position: absolute; border-radius: 50%; pointer-events: none; z-index: -1; }

.glow-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(14, 184, 230, 0.08) 0%, transparent 70%);
  top: -200px; right: -100px;
}

.glow-orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
  bottom: -100px; left: -100px;
}

/* ========================================
   DIVIDER
   ======================================== */
.divider {
  width: 60px; height: 3px;
  background: var(--gradient-blue);
  border-radius: 2px;
  margin: 0 auto 20px;
}

/* ========================================
   STAT NUMBERS
   ======================================== */
.stat-number {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 600;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-16px); }
}

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

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(14,184,230,0.2); }
  50%       { box-shadow: 0 0 40px rgba(14,184,230,0.5); }
}

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.animate-fadeInUp { animation: fadeInUp 0.7s ease forwards; }
.animate-float    { animation: float 5s ease-in-out infinite; }
.animate-glow     { animation: glowPulse 2.5s ease-in-out infinite; }

/* Stagger delays */
.delay-1 { animation-delay: 0.1s; opacity: 0; }
.delay-2 { animation-delay: 0.2s; opacity: 0; }
.delay-3 { animation-delay: 0.3s; opacity: 0; }
.delay-4 { animation-delay: 0.4s; opacity: 0; }
.delay-5 { animation-delay: 0.5s; opacity: 0; }
.delay-6 { animation-delay: 0.6s; opacity: 0; }

/* Reveal on scroll */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0; transform: translateX(-24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0; transform: translateX(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ========================================
   FOOTER  — dark background
   ======================================== */
footer {
  background: #090B17;
  border-top: 1px solid var(--border-dark);
  padding: 72px 0 32px;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  margin-top: 16px;
  line-height: 1.8;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 12px; font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 12px; }

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  transition: var(--transition-fast);
  font-weight: 400;
}

.footer-col ul li a:hover {
  color: var(--accent-blue);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border-dark);
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.3);
  font-weight: 400;
}

.social-links { display: flex; gap: 12px; }

.social-link {
  width: 38px; height: 38px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.45);
  font-size: 15px;
  transition: var(--transition);
}

.social-link:hover {
  background: rgba(14, 184, 230, 0.15);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
  box-shadow: 0 0 14px rgba(14, 184, 230, 0.2);
}

/* ========================================
   PAGE HERO BANNER (inner pages) — dark
   ======================================== */
.page-hero {
  padding: 80px 0 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: #090B17;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(14,184,230,0.09) 0%, transparent 70%);
  pointer-events: none;
}

/* ========================================
   FORM ELEMENTS  — inside dark card
   ======================================== */
.form-group { margin-bottom: 24px; }

.form-label {
  display: block;
  font-size: 11px; font-weight: 700;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1.5px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 14px;
  color: #FFFFFF;
  transition: var(--transition);
  font-weight: 400;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent-blue);
  background: rgba(14, 184, 230, 0.05);
  box-shadow: 0 0 0 3px rgba(14, 184, 230, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(255,255,255,0.25);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='rgba(255,255,255,0.4)'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  padding-right: 44px;
}

.form-select option {
  background: #090B17;
  color: #FFFFFF;
}

/* ========================================
   UTILITIES
   ======================================== */
.text-center  { text-align: center; }
.text-left    { text-align: left; }

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

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

.gap-8  { gap: 8px;  }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.gap-32 { gap: 32px; }

.mt-8  { margin-top:  8px;  }
.mt-16 { margin-top:  16px; }
.mt-24 { margin-top:  24px; }
.mt-32 { margin-top:  32px; }
.mt-48 { margin-top:  48px; }
.mb-8  { margin-bottom: 8px;  }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 72px;
    --section-padding: 72px 0;
  }
  .nav-links   { display: none; }
  .nav-hamburger { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .btn-lg { padding: 16px 32px; font-size: 14px; }
  .section-subtitle, .section-subtitle-dark { font-size: 15px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .card, .card-dark { padding: 24px; }
}