/* =============================================
   ACCORDX AI, LLC — Swiss Modernism 2.0 Design System
   Style: Editorial Grid + Authority Navy / Premium Gold
   Typography: Lexend + Source Sans 3
   ============================================= */

/* --- Design Tokens --- */
:root {
  /* Authority Navy + Premium Gold Palette */
  --c-navy-950: #020617;
  --c-navy-900: #0F172A;
  --c-navy-800: #1E293B;
  --c-navy-700: #334155;
  --c-navy-600: #475569;
  --c-navy-400: #94A3B8;
  --c-navy-200: #E2E8F0;
  --c-navy-100: #F1F5F9;
  --c-navy-50:  #F8FAFC;

  --c-gold-600: #A16207;
  --c-gold-500: #CA8A04;
  --c-gold-400: #EAB308;
  --c-gold-300: #FDE047;

  --c-white:    #FFFFFF;
  --c-black:    #000000;

  /* Semantic Tokens */
  --color-primary:    var(--c-navy-900);
  --color-secondary:  var(--c-navy-700);
  --color-accent:     var(--c-gold-500);
  --color-cta:        var(--c-gold-500);
  --color-bg:         var(--c-navy-50);
  --color-surface:    var(--c-white);
  --color-text:       var(--c-navy-950);
  --color-text-muted: var(--c-navy-600);
  --color-border:     var(--c-navy-200);

  /* Typography */
  --font-heading: 'Lexend', sans-serif;
  --font-body:    'Source Sans 3', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Spacing — 8px base unit */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.25rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Grid */
  --grid-cols: 12;
  --grid-gap: var(--sp-6);
  --container-max: 1280px;
  --container-narrow: 960px;

  /* Radius */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-2xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(2,6,23,0.04);
  --shadow-md: 0 4px 12px rgba(2,6,23,0.06);
  --shadow-lg: 0 8px 30px rgba(2,6,23,0.08);
  --shadow-xl: 0 16px 50px rgba(2,6,23,0.1);
  --shadow-card: 0 2px 8px rgba(2,6,23,0.04), 0 8px 24px rgba(2,6,23,0.06);
  --shadow-gold: 0 4px 20px rgba(202,138,4,0.15);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --t-fast: 150ms var(--ease-out);
  --t-base: 250ms var(--ease-out);
  --t-slow: 400ms var(--ease-out);

  /* Z-index scale */
  --z-base: 1;
  --z-card: 10;
  --z-nav: 50;
  --z-overlay: 60;
  --z-modal: 70;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* =============================================
   Typography
   ============================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  color: var(--c-navy-950);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.025em;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 600;
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
}

p {
  color: var(--color-text-muted);
  line-height: 1.75;
  font-size: 1.0625rem;
}

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

a:hover {
  color: var(--c-gold-600);
}

/* =============================================
   Layout — Swiss Grid System
   ============================================= */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

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

.section--dark {
  background: var(--c-navy-900);
  color: var(--c-white);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--c-white);
}

.section--dark p {
  color: var(--c-navy-400);
}

.section--subtle {
  background: var(--c-navy-100);
}

.section-header {
  margin-bottom: var(--sp-16);
}

.section-header h2 {
  margin-bottom: var(--sp-4);
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-3);
}

.section--dark .section-label {
  color: var(--c-gold-400);
}

/* =============================================
   Navigation — Floating Premium
   ============================================= */
.navbar {
  position: fixed;
  top: var(--sp-4);
  left: var(--sp-4);
  right: var(--sp-4);
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: var(--r-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
  z-index: var(--z-nav);
  padding: var(--sp-3) var(--sp-6);
  box-shadow: 0 8px 32px rgba(2,6,23,0.2);
  transition: all var(--t-base);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0;
  max-width: none;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: -0.01em;
}

.nav-logo:hover {
  color: var(--c-white);
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-gold-500), var(--c-gold-400));
  border-radius: var(--r-md);
}

.nav-logo-icon svg {
  width: 20px;
  height: 20px;
  color: var(--c-navy-900);
}

.nav-links {
  display: flex;
  gap: var(--sp-1);
  list-style: none;
}

.nav-links a {
  color: var(--c-navy-400);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.875rem;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-md);
  transition: all var(--t-fast);
  cursor: pointer;
}

.nav-links a:hover {
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active {
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.1);
}

.nav-cta {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  padding: var(--sp-2) var(--sp-5);
  background: var(--c-gold-500);
  color: var(--c-navy-900);
  border-radius: var(--r-md);
  transition: all var(--t-base);
  cursor: pointer;
  text-decoration: none;
}

.nav-cta:hover {
  background: var(--c-gold-400);
  color: var(--c-navy-900);
  box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: var(--t-fast);
}

/* =============================================
   Buttons — Premium Gold + Navy
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--r-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--t-base);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--c-gold-500);
  color: var(--c-navy-900);
  border-color: var(--c-gold-500);
}

.btn-primary:hover {
  background: var(--c-gold-400);
  border-color: var(--c-gold-400);
  color: var(--c-navy-900);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-secondary:hover {
  border-color: var(--c-white);
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.06);
}

.btn-outline {
  background: transparent;
  color: var(--c-navy-900);
  border-color: var(--c-navy-200);
}

.btn-outline:hover {
  border-color: var(--c-navy-900);
  background: var(--c-navy-900);
  color: var(--c-white);
}

.btn-lg {
  padding: var(--sp-4) var(--sp-8);
  font-size: 1rem;
}

/* =============================================
   Cards — Editorial Elevation
   ============================================ */
.card {
  background: var(--color-surface);
  border-radius: var(--r-lg);
  border: 1px solid var(--c-navy-200);
  padding: var(--sp-8);
  transition: all var(--t-base);
  position: relative;
}

.card:hover {
  border-color: var(--c-gold-500);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.card-grid {
  display: grid;
  gap: var(--sp-6);
}

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

.card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-navy-900);
  border-radius: var(--r-md);
  margin-bottom: var(--sp-5);
  transition: background var(--t-base);
}

.card:hover .card-icon {
  background: linear-gradient(135deg, var(--c-gold-500), var(--c-gold-400));
}

.card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--c-white);
}

.card:hover .card-icon svg {
  color: var(--c-navy-900);
}

.card h3 {
  margin-bottom: var(--sp-3);
  font-size: 1.125rem;
}

.card p {
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* =============================================
   Hero — Dark Premium
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-navy-900);
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 50%, rgba(202,138,4,0.08) 0%, transparent 60%),
    linear-gradient(180deg, rgba(2,6,23,0.6) 0%, rgba(15,23,42,0.85) 50%, rgba(2,6,23,0.95) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: var(--sp-32) 0 var(--sp-24);
}

.hero-content .section-label {
  margin-bottom: var(--sp-4);
}

.hero-content h1 {
  color: var(--c-white);
  margin-bottom: var(--sp-6);
  max-width: 800px;
}

.hero-content h1 .accent {
  background: linear-gradient(135deg, var(--c-gold-500), var(--c-gold-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.375rem);
  color: var(--c-navy-400);
  margin-bottom: var(--sp-10);
  max-width: 560px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.hero-meta {
  display: flex;
  gap: var(--sp-10);
  margin-top: var(--sp-16);
  padding-top: var(--sp-8);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-meta-item {
  text-align: left;
}

.hero-meta-item .label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-gold-500);
  margin-bottom: var(--sp-1);
}

.hero-meta-item .value {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--c-white);
}

/* =============================================
   CTA Banner — Premium Dark
   ============================================= */
.cta-banner {
  position: relative;
  background: var(--c-navy-900);
  padding: var(--sp-24) 0;
  text-align: center;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 80% at 50% 100%, rgba(202,138,4,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner h2 {
  color: var(--c-white);
  margin-bottom: var(--sp-4);
  position: relative;
}

.cta-banner p {
  color: var(--c-navy-400);
  margin-bottom: var(--sp-8);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.cta-banner .btn {
  position: relative;
}

/* =============================================
   Page Header — Editorial
   ============================================= */
.page-header {
  position: relative;
  background: var(--c-navy-900);
  padding: calc(var(--sp-32) + 60px) 0 var(--sp-20);
  text-align: center;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 30%, rgba(202,138,4,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.page-header .section-label {
  position: relative;
}

.page-header h1 {
  color: var(--c-white);
  margin-bottom: var(--sp-4);
  position: relative;
}

.page-header p {
  color: var(--c-navy-400);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.125rem;
  position: relative;
}

/* =============================================
   Footer — Editorial Dark
   ============================================= */
.footer {
  background: var(--c-navy-950);
  color: var(--c-white);
  padding: var(--sp-20) 0 var(--sp-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--sp-12);
  margin-bottom: var(--sp-16);
  padding-bottom: var(--sp-12);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-brand h3 {
  color: var(--c-white);
  font-size: 1.375rem;
  margin-bottom: var(--sp-4);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.footer-brand h3 .footer-logo-icon {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-gold-500), var(--c-gold-400));
  border-radius: var(--r-sm);
}

.footer-brand h3 .footer-logo-icon svg {
  width: 16px;
  height: 16px;
  color: var(--c-navy-900);
}

.footer-brand p {
  color: var(--c-navy-400);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.footer-column h4 {
  color: var(--c-white);
  margin-bottom: var(--sp-5);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: var(--sp-2);
}

.footer-column a {
  color: var(--c-navy-400);
  font-size: 0.9375rem;
  transition: color var(--t-fast);
  cursor: pointer;
}

.footer-column a:hover {
  color: var(--c-gold-500);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--c-navy-600);
}

/* =============================================
   Form Styles — Premium
   ============================================= */
.form-group {
  margin-bottom: var(--sp-5);
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: var(--sp-2);
  color: var(--c-navy-800);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--c-navy-200);
  border-radius: var(--r-md);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--t-fast);
  background: var(--c-white);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--c-gold-500);
  box-shadow: 0 0 0 3px rgba(202,138,4,0.1);
}

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

.form-input.error,
.form-textarea.error {
  border-color: #DC2626;
}

.form-error {
  color: #DC2626;
  font-size: 0.8125rem;
  margin-top: var(--sp-1);
}

/* =============================================
   Feature List — Gold Dots
   ============================================= */
.feature-list {
  list-style: none;
  margin-top: var(--sp-4);
}

.feature-list li {
  position: relative;
  padding-left: var(--sp-5);
  margin-bottom: var(--sp-2);
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  background: var(--c-gold-500);
  border-radius: 50%;
}

/* =============================================
   Process Steps — Connected
   ============================================= */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 14%;
  right: 14%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-gold-500), var(--c-navy-200), var(--c-gold-500));
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-navy-900);
  color: var(--c-gold-500);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  border-radius: 50%;
  margin: 0 auto var(--sp-5);
  border: 2px solid var(--c-gold-500);
  transition: all var(--t-base);
}

.process-step:hover .process-number {
  background: var(--c-gold-500);
  color: var(--c-navy-900);
}

.process-step h4 {
  margin-bottom: var(--sp-2);
}

.process-step p {
  font-size: 0.875rem;
}

/* =============================================
   Service Card — Editorial
   ============================================= */
.service-card {
  background: var(--color-surface);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--c-navy-200);
  transition: all var(--t-base);
  cursor: pointer;
}

.service-card:hover {
  border-color: var(--c-gold-500);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.service-card:hover .service-card-img {
  transform: scale(1.03);
}

.service-card-img-wrap {
  overflow: hidden;
}

.service-card-content {
  padding: var(--sp-6);
}

.service-card h3 {
  margin-bottom: var(--sp-2);
}

.service-card p {
  font-size: 0.9375rem;
  margin-bottom: var(--sp-4);
}

/* =============================================
   Split Section — Asymmetric Editorial
   ============================================= */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
}

.split--reverse {
  direction: rtl;
}

.split--reverse > * {
  direction: ltr;
}

.split-image {
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
}

.split-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  border: 1px solid rgba(202,138,4,0.15);
  pointer-events: none;
}

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

.split-image:hover img {
  transform: scale(1.03);
}

/* =============================================
   Contact Info — Premium
   ============================================= */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
}

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

.contact-item svg {
  width: 22px;
  height: 22px;
  color: var(--c-gold-500);
  flex-shrink: 0;
  margin-top: 3px;
}

.contact-item h4 {
  margin-bottom: var(--sp-1);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-navy-600);
}

.contact-item p,
.contact-item a {
  color: var(--c-navy-800);
  font-size: 0.9375rem;
}

.contact-item a {
  cursor: pointer;
}

.contact-item a:hover {
  color: var(--c-gold-600);
}

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

.mt-4  { margin-top: var(--sp-4); }
.mt-8  { margin-top: var(--sp-8); }
.mt-12 { margin-top: var(--sp-12); }
.mt-16 { margin-top: var(--sp-16); }

.mb-4  { margin-bottom: var(--sp-4); }
.mb-8  { margin-bottom: var(--sp-8); }
.mb-12 { margin-bottom: var(--sp-12); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* =============================================
   Animations — Subtle & Professional
   ============================================= */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.6; }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s var(--ease-out) both;
}

.animate-fade-in {
  animation: fadeIn 0.5s var(--ease-out) both;
}

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

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .split {
    gap: var(--sp-8);
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: var(--sp-5);
  }

  .navbar {
    top: var(--sp-2);
    left: var(--sp-2);
    right: var(--sp-2);
    padding: var(--sp-3) var(--sp-4);
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + var(--sp-2));
    left: 0;
    right: 0;
    background: var(--c-navy-900);
    flex-direction: column;
    padding: var(--sp-4);
    border-radius: var(--r-lg);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: var(--shadow-xl);
  }

  .nav-links.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

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

  .split,
  .split--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: var(--sp-8);
  }

  .process-steps {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-6);
  }

  .process-steps::before {
    display: none;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--sp-3);
    text-align: center;
  }

  .hero-meta {
    flex-direction: column;
    gap: var(--sp-6);
  }

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

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   Client Wall & Case Studies
   ============================================= */

/* Client Wall — Logo/Name Grid */
.client-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-6);
  margin-bottom: var(--sp-16);
  padding: var(--sp-10) 0;
}

.client-wall-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-6);
  background: var(--c-white);
  border: 1px solid var(--c-navy-200);
  border-radius: var(--r-lg);
  transition: all var(--t-base);
  cursor: default;
}

.client-wall-item:hover {
  border-color: var(--c-gold-400);
  box-shadow: 0 2px 12px rgba(202,138,4,0.08);
}

.client-wall-item svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.client-wall-item span {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--c-navy-800);
  white-space: nowrap;
}

/* Case Studies — 2x2 Grid */
.case-studies {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-8);
}

.case-card {
  background: var(--c-white);
  border: 1px solid var(--c-navy-200);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  transition: all var(--t-base);
  position: relative;
  overflow: hidden;
}

.case-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-gold-500), var(--c-gold-300));
  opacity: 0;
  transition: opacity var(--t-base);
}

.case-card:hover {
  border-color: var(--c-gold-400);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

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

.case-card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-gold-600);
  background: rgba(202,138,4,0.08);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-sm);
  margin-bottom: var(--sp-4);
}

.case-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--sp-3);
  color: var(--c-navy-950);
  line-height: 1.3;
}

.case-card-desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-navy-600);
  margin-bottom: var(--sp-6);
}

.case-card-metrics {
  display: flex;
  gap: var(--sp-8);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--c-navy-100);
}

.case-metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.case-metric-value {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--c-gold-500);
  letter-spacing: -0.02em;
}

.case-metric-label {
  font-size: 0.75rem;
  color: var(--c-navy-400);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

/* Responsive — Client Cases */
@media (max-width: 768px) {
  .client-wall {
    gap: var(--sp-3);
  }

  .client-wall-item {
    padding: var(--sp-3) var(--sp-4);
  }

  .client-wall-item svg {
    width: 28px;
    height: 28px;
  }

  .client-wall-item span {
    font-size: 0.8125rem;
  }

  .case-studies {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }

  .case-card-metrics {
    gap: var(--sp-5);
  }

  .case-metric-value {
    font-size: 1.125rem;
  }
}

@media (max-width: 480px) {
  .case-card-metrics {
    flex-direction: column;
    gap: var(--sp-3);
  }

  .client-wall {
    flex-direction: column;
    align-items: stretch;
  }

  .client-wall-item {
    justify-content: center;
  }
}