/* ============================================================
   HILDERTHORPE GLOBAL SOLUTIONS — style.css
   Author: Hilderthorpe Design Team
   Version: 1.0.0
   ============================================================ */

/* ============================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  /* Color Palette */
  --color-primary:     #0F172A;
  --color-secondary:   #2563EB;
  --color-accent:      #38BDF8;
  --color-bg:          #F8FAFC;
  --color-white:       #FFFFFF;
  --color-light:       #EFF6FF;
  --color-muted:       #64748B;
  --color-border:      #E2E8F0;
  --color-dark-card:   #1E293B;
  --color-success:     #10B981;

  /* Gradients */
  --gradient-primary:  linear-gradient(135deg, #2563EB 0%, #1D4ED8 50%, #38BDF8 100%);
  --gradient-hero:     linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(37,99,235,0.75) 100%);
  --gradient-card:     linear-gradient(180deg, rgba(15,23,42,0) 0%, rgba(15,23,42,0.9) 100%);

  /* Typography */
  --font-family:       'Poppins', sans-serif;
  --font-size-xs:      0.75rem;   /* 12px */
  --font-size-sm:      0.875rem;  /* 14px */
  --font-size-base:    1rem;      /* 16px */
  --font-size-md:      1.125rem;  /* 18px */
  --font-size-lg:      1.25rem;   /* 20px */
  --font-size-xl:      1.5rem;    /* 24px */
  --font-size-2xl:     2rem;      /* 32px */
  --font-size-3xl:     2.5rem;    /* 40px */
  --font-size-4xl:     3rem;      /* 48px */
  --font-size-5xl:     3.75rem;   /* 60px */

  /* 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;
  --space-32: 8rem;

  /* Borders & Shadows */
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  --shadow-sm:   0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:   0 4px 16px rgba(15,23,42,0.10), 0 2px 6px rgba(15,23,42,0.06);
  --shadow-lg:   0 10px 40px rgba(15,23,42,0.14), 0 4px 12px rgba(15,23,42,0.08);
  --shadow-xl:   0 20px 60px rgba(15,23,42,0.18), 0 8px 24px rgba(15,23,42,0.10);
  --shadow-blue: 0 8px 32px rgba(37,99,235,0.35);
  --shadow-glow: 0 0 40px rgba(56,189,248,0.25);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   300ms ease;
  --transition-slow:   600ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Navbar height */
  --navbar-h: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-primary);
  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-base);
}

ul { list-style: none; }

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

/* ============================================================
   3. UTILITY CLASSES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

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

.section-alt {
  background: var(--color-light);
}

.section-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  background: rgba(37,99,235,0.10);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-3xl));
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-muted);
  max-width: 540px;
  margin: 0 auto;
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

/* ============================================================
   4. BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition-fast);
}

.btn:hover::after {
  background: rgba(255,255,255,0.10);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(37,99,235,0.45);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.6);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-secondary);
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: gap var(--transition-base), color var(--transition-base);
}

.btn-text:hover {
  gap: var(--space-3);
  color: var(--color-accent);
}

/* ============================================================
   5. NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--navbar-h);
  display: flex;
  flex-direction: column;
  transition: background var(--transition-base), box-shadow var(--transition-base), height var(--transition-base);
}

.navbar.scrolled {
  background: rgba(15,23,42,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 32px rgba(0,0,0,0.25);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-h);
  padding: 0 var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-img {
  height: 52px;
  width: auto;
  /* White-bg logo: invert colours so it appears white on the dark navbar */
  filter: brightness(0) invert(1);
  transition: filter var(--transition-base);
}

.navbar.scrolled .logo-img {
  filter: brightness(0) invert(1);
}

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

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  position: relative;
  padding: var(--space-1) 0;
  transition: color var(--transition-base);
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
}

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

.nav-cta {
  padding: var(--space-2) var(--space-6);
  font-size: var(--font-size-sm);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}

.bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
  transform-origin: center;
}

.hamburger.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active .bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  background: rgba(15,23,42,0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.08);
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.mobile-link {
  display: block;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: var(--font-size-md);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: color var(--transition-base), padding-left var(--transition-base);
}

.mobile-link:hover {
  color: var(--color-accent);
  padding-left: var(--space-3);
}

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

/* ============================================================
   6. HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--navbar-h);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

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

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.2);
  margin-bottom: var(--space-6);
}

.hero-headline {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}

.hero-subheadline {
  font-size: clamp(var(--font-size-base), 2vw, var(--font-size-md));
  color: rgba(255,255,255,0.80);
  max-width: 520px;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
}

.stat-plus {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-accent);
  margin-left: 1px;
}

.stat-label {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.65);
  font-weight: 500;
  margin-top: var(--space-1);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.2);
}

/* Hero Visual (floating cards) */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.glass-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: rgba(255,255,255,0.10);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  color: var(--color-white);
  transform: translateX(40px);
  opacity: 0;
  animation: slideInRight 0.7s var(--transition-spring) forwards;
}

.glass-card:hover {
  background: rgba(255,255,255,0.15);
  transform: translateX(0) translateY(-4px) !important;
  box-shadow: var(--shadow-glow);
}

.glass-card strong {
  display: block;
  font-weight: 700;
  font-size: var(--font-size-sm);
}

.glass-card p {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.70);
  margin-top: 2px;
}

.hero-card-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.30s; }
.delay-3 { animation-delay: 0.45s; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 2px solid rgba(255,255,255,0.35);
  border-radius: var(--radius-full);
  animation: bounce 2s infinite;
}

.scroll-dot {
  width: 6px;
  height: 6px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  animation: scrollDot 2s infinite;
}

/* ============================================================
   7. ABOUT SECTION
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-image-wrap {
  position: relative;
}

.about-image-frame {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 4/5;
}

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

.about-image-frame:hover .about-img {
  transform: scale(1.04);
}

.about-badge-float {
  position: absolute;
  bottom: -var(--space-6);
  right: -var(--space-6);
  bottom: -24px;
  right: -24px;
  background: var(--gradient-primary);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  text-align: center;
  box-shadow: var(--shadow-blue);
}

.badge-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 800;
  line-height: 1;
}

.badge-text {
  font-size: var(--font-size-xs);
  font-weight: 500;
  opacity: 0.85;
}

.about-text {
  color: var(--color-muted);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-5);
  line-height: 1.8;
}

/* Feature Cards */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin: var(--space-8) 0;
}

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37,99,235,0.25);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  min-width: 32px;
  background: var(--gradient-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 700;
  flex-shrink: 0;
}

.feature-card strong {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.feature-card p {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

/* ============================================================
   8. SERVICES SECTION
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  /* Force all cards to the same height */
  align-items: stretch;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-spring), box-shadow var(--transition-spring), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  /* Equalise heights across the row */
  height: 100%;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(37, 99, 235, 0.20);
}

/* Fixed image height — identical on every card */
.service-card-image {
  position: relative;
  width: 100%;
  height: 220px;
  flex-shrink: 0;
  overflow: hidden;
}

.service-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.6s ease;
}

.service-card:hover .service-card-image img {
  transform: scale(1.06);
}

.service-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15,23,42,0.55) 100%);
  opacity: 1;
  pointer-events: none;
}

/* Card body: icon → title → desc → link, all left-aligned */
.service-card-body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  background: rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-md);
  color: var(--color-secondary);
  margin-bottom: var(--space-4);
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-spring);
}

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

.service-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.service-desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: var(--space-5);
}

/* ============================================================
   9. CONTACT SECTION
   ============================================================ */
.contact-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.contact-subtitle {
  color: var(--color-muted);
  font-size: var(--font-size-md);
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

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

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  min-width: 46px;
  background: rgba(37,99,235,0.10);
  color: var(--color-secondary);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  line-height: 1.6;
  transition: color var(--transition-base);
}

.contact-item a:hover {
  color: var(--color-secondary);
}

/* Contact Form */
.contact-form-wrap {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

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

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.required {
  color: #EF4444;
}

.form-group input,
.form-group textarea {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  width: 100%;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  outline: none;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #CBD5E1;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-secondary);
  background: var(--color-white);
  box-shadow: 0 0 0 4px rgba(37,99,235,0.10);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #EF4444;
  box-shadow: 0 0 0 4px rgba(239,68,68,0.10);
}

.field-error {
  font-size: var(--font-size-xs);
  color: #EF4444;
  font-weight: 500;
  min-height: 18px;
}

/* Loader inside button */
.btn-loader {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn.loading .btn-text-inner { display: none; }
.btn.loading .btn-loader    { display: block; }
.btn.loading                { pointer-events: none; opacity: 0.8; }

/* Form Success */
.form-success {
  text-align: center;
  padding: var(--space-12) var(--space-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  animation: fadeIn 0.5s ease;
}

.success-icon {
  font-size: 3rem;
}

.form-success h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.form-success p {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  max-width: 320px;
}

/* ============================================================
   10. FOOTER
   ============================================================ */
.footer {
  background: var(--color-primary);
  color: var(--color-white);
}

.footer-top {
  padding: var(--space-20) 0 var(--space-12);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: var(--space-12);
}

.footer-logo {
  height: 52px;
  width: auto;
  margin-bottom: var(--space-5);
  /* Make logo appear white on dark footer */
  filter: brightness(0) invert(1);
}

.footer-desc {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.60);
  line-height: 1.8;
  margin-bottom: var(--space-6);
  max-width: 320px;
}

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

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.70);
  border: 1px solid rgba(255,255,255,0.10);
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-base);
}

.social-link:hover {
  background: var(--gradient-primary);
  color: var(--color-white);
  border-color: transparent;
  transform: translateY(-3px);
}

.footer-heading {
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

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

.footer-links a {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.60);
  transition: color var(--transition-base), padding-left var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-links a::before {
  content: '→';
  font-size: var(--font-size-xs);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: var(--space-3);
}

.footer-links a:hover::before {
  opacity: 1;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.60);
}

.footer-contact-list svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

.footer-contact-list a {
  color: rgba(255,255,255,0.60);
  transition: color var(--transition-base);
}

.footer-contact-list a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-6) 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.50);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom-links a {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.50);
  transition: color var(--transition-base);
}

.footer-bottom-links a:hover {
  color: var(--color-accent);
}

/* ============================================================
   11. BACK-TO-TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-blue);
  z-index: 999;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(37,99,235,0.50);
}

/* ============================================================
   12. SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-up    { transform: translateY(40px); }
.reveal-left  { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   13. KEYFRAME ANIMATIONS
   ============================================================ */
@keyframes slideInRight {
  from { transform: translateX(40px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.97); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(-8px); }
}

@keyframes scrollDot {
  0%   { transform: translateY(-4px); opacity: 0; }
  40%  { opacity: 1; }
  100% { transform: translateY(4px); opacity: 0; }
}

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

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(56,189,248,0.3); }
  50%       { box-shadow: 0 0 40px rgba(56,189,248,0.6); }
}

/* ============================================================
   14. RESPONSIVE — TABLET (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --space-24: 5rem;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    padding-top: var(--space-16);
  }

  .hero-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .glass-card {
    transform: translateY(20px);
    animation-name: fadeIn;
  }

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

  .about-image-frame {
    aspect-ratio: 16/9;
    max-width: 600px;
    margin: 0 auto;
  }

  .about-badge-float {
    right: 0;
    bottom: -16px;
  }

  .services-grid {
    /* 2 columns on tablet for better space use */
    grid-template-columns: repeat(2, 1fr);
    max-width: 100%;
  }

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

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ============================================================
   15. RESPONSIVE — MOBILE (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --navbar-h: 70px;
    --space-24: 4rem;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-menu {
    display: flex;
    flex-direction: column;
  }

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

  .hero-visual {
    grid-template-columns: 1fr;
    max-width: 380px;
    margin: 0 auto;
  }

  .hero-stats {
    gap: var(--space-4);
  }

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

  .services-grid {
    /* Single column on mobile */
    grid-template-columns: 1fr;
    max-width: 100%;
  }

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

  .contact-form-wrap {
    padding: var(--space-6);
  }

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

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  .back-to-top {
    bottom: var(--space-5);
    right: var(--space-5);
  }
}

/* ============================================================
   16. RESPONSIVE — SMALL MOBILE (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-4);
  }

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

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .stat-divider {
    display: none;
  }

  .about-badge-float {
    display: none;
  }
}

/* ============================================================
   17. ACCESSIBILITY & FOCUS STYLES
   ============================================================ */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
.contact .container {
    max-width: none;
    width: 100%;
    padding-left: 40px;
    padding-right: 40px;
}

.contact-form-wrap {
    width: 85%;
}