/* ============================================
   Jon Nemargut Portfolio - Design System & Styles
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a2e;
  --bg-card: #14141f;
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #555570;
  --accent-primary: #6c63ff;
  --accent-secondary: #00d4aa;
  --accent-gradient: linear-gradient(135deg, #6c63ff, #00d4aa);
  --accent-gradient-hover: linear-gradient(135deg, #7b73ff, #00e6b8);
  --border-color: #1e1e30;
  --border-accent: rgba(108, 99, 255, 0.3);
  --error: #ff6b6b;
  --success: #00d4aa;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;
  --space-4xl: 128px;

  /* Layout */
  --max-width: 1200px;
  --content-width: 800px;
  --nav-height: 72px;

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

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle 120px at 12% 18%, rgba(108, 99, 255, 0.06) 0%, transparent 70%),
    radial-gradient(circle 90px at 75% 8%, rgba(0, 212, 170, 0.045) 0%, transparent 70%),
    radial-gradient(circle 150px at 45% 55%, rgba(108, 99, 255, 0.04) 0%, transparent 70%),
    radial-gradient(circle 70px at 85% 70%, rgba(0, 212, 170, 0.05) 0%, transparent 70%),
    radial-gradient(circle 100px at 30% 85%, rgba(108, 99, 255, 0.035) 0%, transparent 70%),
    radial-gradient(circle 80px at 60% 35%, rgba(0, 212, 170, 0.04) 0%, transparent 70%);
  background-size: 900px 800px, 1100px 950px, 800px 1000px, 1000px 850px, 950px 1100px, 1050px 900px;
}

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

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

a:hover {
  color: var(--accent-secondary);
}

video {
  max-width: 100%;
  border-radius: var(--radius-md);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.mono {
  font-family: var(--font-mono);
}

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

.content-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
}

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

/* ============================================
   PASSWORD GATE
   ============================================ */
#password-gate {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#password-gate.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.gate-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(108, 99, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(0, 212, 170, 0.06) 0%, transparent 60%);
  animation: gatePulse 8s ease-in-out infinite alternate;
}

@keyframes gatePulse {
  0% { opacity: 0.6; }
  100% { opacity: 1; }
}

.gate-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-xl);
}

.gate-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto var(--space-lg);
  border: 3px solid var(--border-color);
  overflow: hidden;
  background: var(--bg-secondary);
}

.gate-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gate-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.gate-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.gate-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.gate-input-wrapper {
  position: relative;
  width: 300px;
  max-width: 90vw;
}

.gate-input {
  width: 100%;
  padding: 14px 20px;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-base);
}

.gate-input:focus {
  border-color: var(--accent-primary);
}

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

.gate-btn {
  padding: 12px 32px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.gate-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.gate-error {
  font-size: 0.85rem;
  color: var(--error);
  min-height: 1.2em;
  transition: opacity var(--transition-fast);
}

.gate-error.visible {
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

/* ============================================
   SITE CONTENT (hidden behind gate)
   ============================================ */
#site-content {
  opacity: 0;
  transition: opacity 0.6s ease;
}

#site-content.visible {
  opacity: 1;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-logo:hover {
  color: var(--text-primary);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

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

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

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

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

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

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

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

/* Mobile nav */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
}

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

.nav-mobile a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.nav-mobile a:hover {
  color: var(--text-primary);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-4xl) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(108, 99, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(0, 212, 170, 0.04) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto var(--space-lg);
  border: 3px solid var(--border-color);
  overflow: hidden;
  background: var(--bg-secondary);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.hero-avatar:hover {
  transform: scale(1.05);
  border-color: var(--accent-primary);
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-title {
  margin-bottom: var(--space-sm);
}

.hero-role {
  font-size: 1.2rem;
  font-weight: 500;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-lg);
}

.hero-desc {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  margin-bottom: var(--space-xl);
}

.hero-cta:hover {
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108, 99, 255, 0.3);
}

.hero-companies {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.hero-companies .divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

/* ============================================
   METRICS BAR
   ============================================ */
.metrics-bar {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  text-align: center;
}

.metric-item {
  padding: var(--space-md);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-xs);
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ============================================
   CASE STUDY CARDS
   ============================================ */
.work-section {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border-color);
  position: relative;
}

.work-section::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: 3px;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.case-study-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.case-study-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.case-study-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: 0 12px 40px rgba(108, 99, 255, 0.1);
}

.case-study-card.featured {
  grid-column: 1 / -1;
}

.card-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.card-content {
  padding: var(--space-lg);
}

.card-tags {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(108, 99, 255, 0.1);
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-tag.award {
  background: rgba(0, 212, 170, 0.1);
  color: var(--accent-secondary);
}

.card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.card-company {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.card-metric {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-secondary);
  font-weight: 500;
}

.card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.card-link:hover {
  color: inherit;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border-color);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

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

.about-text p {
  margin-bottom: var(--space-md);
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.highlight-card {
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.highlight-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: var(--space-sm);
}

.highlight-value {
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.5;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.footer-links a {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================
   CASE STUDY PAGE
   ============================================ */
.cs-hero {
  padding: calc(var(--nav-height) + var(--space-3xl)) var(--space-lg) var(--space-2xl);
  text-align: center;
  position: relative;
}

.cs-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(108, 99, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 70%, rgba(0, 212, 170, 0.04) 0%, transparent 50%);
}

.cs-hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--content-width);
  margin: 0 auto;
}

.cs-breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

.cs-breadcrumb a {
  color: var(--text-muted);
}

.cs-breadcrumb a:hover {
  color: var(--accent-primary);
}

.cs-title {
  margin-bottom: var(--space-md);
}

.cs-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.cs-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.cs-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.cs-meta-label {
  font-weight: 600;
  color: var(--text-secondary);
}

/* Case study hero image */
.cs-hero-image {
  padding: 0 var(--space-lg) var(--space-2xl);
}

.cs-hero-image img,
.cs-hero-image video {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: block;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

/* Case study metrics */
.cs-metrics {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.cs-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  text-align: center;
}

.cs-metric {
  padding: var(--space-md);
}

.cs-metric-value {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-xs);
}

.cs-metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Case study body */
.cs-body {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}

.cs-section {
  margin-bottom: var(--space-3xl);
}

.cs-section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: var(--space-sm);
}

.cs-section h2 {
  margin-bottom: var(--space-lg);
}

.cs-section h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.cs-section p {
  margin-bottom: var(--space-md);
}

.cs-section ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-lg);
}

.cs-section ul li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

.cs-section ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
}

/* Case study images */
.cs-image {
  margin: var(--space-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.cs-image img {
  width: 100%;
  display: block;
}

.cs-image-caption {
  padding: var(--space-md);
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-secondary);
  text-align: center;
}

/* Full-width images (break out of content width) */
.cs-image-full {
  margin: var(--space-xl) calc(-1 * ((100vw - var(--content-width)) / 2 - var(--space-lg)));
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

/* Case study video */
.cs-video {
  margin: var(--space-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.cs-video video {
  width: 100%;
  display: block;
  border-radius: 0;
}

/* Case study blockquote */
.cs-quote {
  margin: var(--space-xl) 0;
  padding: var(--space-lg) var(--space-xl);
  border-left: 3px solid var(--accent-primary);
  background: var(--bg-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.cs-quote p {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.cs-quote cite {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: normal;
}

/* Case study results */
.cs-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.cs-result-card {
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.cs-result-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-xs);
}

.cs-result-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Press logos / mentions */
.cs-press {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.cs-press-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.cs-press-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Case study navigation (prev/next) */
.cs-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-2xl) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid var(--border-color);
}

.cs-nav-item {
  flex: 1;
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.cs-nav-item:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.cs-nav-item a {
  text-decoration: none;
  color: inherit;
}

.cs-nav-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.cs-nav-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.cs-nav-item.next {
  text-align: right;
}

/* Placeholder image for missing screenshots */
.cs-placeholder {
  margin: var(--space-xl) 0;
  padding: var(--space-3xl) var(--space-xl);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  background: var(--bg-secondary);
}

.cs-placeholder-text {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ============================================
   PERSONA GRID (for Alexa Live)
   ============================================ */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.persona-card {
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
}

.persona-card img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto var(--space-sm);
  object-fit: cover;
}

.persona-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.persona-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

  .case-study-card.featured {
    grid-column: 1;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

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

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

  .hero {
    min-height: auto;
    padding: calc(var(--nav-height) + var(--space-2xl)) var(--space-lg) var(--space-2xl);
  }

  .hero-companies {
    gap: var(--space-md);
  }

  .cs-nav {
    flex-direction: column;
  }

  .cs-nav-item.next {
    text-align: left;
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .cs-body {
    padding: var(--space-2xl) var(--space-lg);
  }

  .cs-section {
    margin-bottom: var(--space-2xl);
  }

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

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger card animations */
.case-study-card.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.case-study-card.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.case-study-card.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.case-study-card.animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }

/* Nav scrolled state */
.nav.scrolled {
  border-bottom-color: rgba(108, 99, 255, 0.15);
}

/* Selection color */
::selection {
  background: rgba(108, 99, 255, 0.3);
  color: var(--text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* Focus styles for accessibility */
*:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

@media (max-width: 480px) {
  .metrics-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }

  .cs-metrics-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-title {
    font-size: 2rem;
  }

  .cs-meta {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .cs-results-grid {
    grid-template-columns: 1fr;
  }

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

/* ============================================
   MODE TOGGLE (Swipe Mode Easter Egg)
   ============================================ */
.mode-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition-base);
  position: relative;
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.mode-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: scale(1.05);
}

.mode-toggle::after {
  content: 'Swipe mode';
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-primary);
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
  background: var(--bg-secondary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.mode-toggle:hover::after {
  opacity: 1;
}

.mode-toggle svg {
  width: 16px;
  height: 16px;
}

@media (max-width: 768px) {
  .mode-toggle {
    margin-left: auto;
    margin-right: var(--space-md);
  }

  .mode-toggle::after {
    right: 0;
    left: auto;
    transform: none;
  }
}

/* ============================================
   TIKTOK / SWIPE MODE
   ============================================ */
#tiktok-container {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-primary);
  background-image:
    radial-gradient(circle 120px at 12% 18%, rgba(108, 99, 255, 0.06) 0%, transparent 70%),
    radial-gradient(circle 90px at 75% 8%, rgba(0, 212, 170, 0.045) 0%, transparent 70%),
    radial-gradient(circle 150px at 45% 55%, rgba(108, 99, 255, 0.04) 0%, transparent 70%),
    radial-gradient(circle 70px at 85% 70%, rgba(0, 212, 170, 0.05) 0%, transparent 70%),
    radial-gradient(circle 100px at 30% 85%, rgba(108, 99, 255, 0.035) 0%, transparent 70%),
    radial-gradient(circle 80px at 60% 35%, rgba(0, 212, 170, 0.04) 0%, transparent 70%);
  background-size: 900px 800px, 1100px 950px, 800px 1000px, 1000px 850px, 950px 1100px, 1050px 900px;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#tiktok-container.active {
  opacity: 1;
  visibility: visible;
}

/* Scrollbar hidden in TikTok mode */
#tiktok-container::-webkit-scrollbar {
  display: none;
}

#tiktok-container {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.tt-slide {
  min-height: 100vh;
  width: 100%;
  scroll-snap-align: start;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-lg);
  position: relative;
}

.tt-slide-inner {
  max-width: 520px;
  width: 100%;
  text-align: center;
}

/* Slide variants */
.tt-slide--hero {
  background:
    radial-gradient(ellipse at 30% 20%, rgba(108, 99, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(0, 212, 170, 0.06) 0%, transparent 50%);
}

.tt-slide--case-study {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(108, 99, 255, 0.04) 0%, transparent 60%);
}

.tt-slide--contact {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(0, 212, 170, 0.06) 0%, transparent 60%);
}

/* Slide content styles */
.tt-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 3px solid var(--border-color);
  overflow: hidden;
  margin: 0 auto var(--space-lg);
}

.tt-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tt-name {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.tt-role {
  font-size: 1.1rem;
  font-weight: 500;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.tt-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.tt-companies {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  color: var(--text-muted);
  font-size: 0.85rem;
  flex-wrap: wrap;
}

.tt-companies .divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

.tt-section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: var(--space-md);
}

.tt-heading {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.tt-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  text-align: left;
}

.tt-highlight-item {
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.tt-highlight-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: var(--space-xs);
}

.tt-highlight-value {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.5;
}

/* Case study slide */
.tt-cs-image {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.tt-cs-image img {
  width: 100%;
  display: block;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.tt-cs-company {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-secondary);
  margin-bottom: var(--space-sm);
}

.tt-cs-title {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.tt-cs-role {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.tt-cs-metrics {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.tt-cs-metric {
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  text-align: center;
}

.tt-cs-metric-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tt-cs-metric-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.tt-cs-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.tt-cs-link {
  display: inline-block;
  margin-top: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-primary);
  padding: 8px 16px;
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.tt-cs-link:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
}

/* Detail slide (challenge/approach/results) */
.tt-slide--detail {
  background:
    radial-gradient(ellipse at 30% 70%, rgba(0, 212, 170, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(108, 99, 255, 0.03) 0%, transparent 60%);
}

.tt-slide--detail .tt-slide-inner {
  max-width: 560px;
  text-align: left;
}

.tt-detail-block {
  margin-bottom: var(--space-lg);
}

.tt-detail-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: var(--space-sm);
}

.tt-detail-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.tt-detail-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tt-detail-list li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.tt-detail-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
}

.tt-reflection {
  font-size: 0.9rem;
  font-style: italic;
  color: var(--accent-secondary);
  line-height: 1.6;
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-left: 2px solid var(--accent-secondary);
  text-align: left;
}

/* Contact slide */
.tt-contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.tt-contact-links a {
  font-size: 1rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.tt-contact-links a:hover {
  color: var(--accent-primary);
}

.tt-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: var(--space-xl);
}

/* Close button */
.tt-close {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10001;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-base);
}

.tt-close.visible {
  display: flex;
}

.tt-close:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: scale(1.1);
}

/* Progress dots */
.tt-dots {
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10001;
  display: none;
  flex-direction: column;
  gap: 8px;
}

.tt-dots.visible {
  display: flex;
}

.tt-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.25;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  padding: 0;
}

.tt-dot:hover {
  opacity: 0.6;
}

.tt-dot.active {
  opacity: 1;
  background: var(--accent-primary);
  transform: scale(1.4);
  box-shadow: 0 0 8px rgba(108, 99, 255, 0.4);
}

/* Swipe hint */
.tt-swipe-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  animation: ttBounce 2s ease-in-out infinite;
}

.tt-swipe-hint svg {
  width: 20px;
  height: 20px;
}

@keyframes ttBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.6; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

/* Slide enter animations */
.tt-slide-inner > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.tt-slide.in-view .tt-slide-inner > * {
  opacity: 1;
  transform: translateY(0);
}

.tt-slide.in-view .tt-slide-inner > *:nth-child(1) { transition-delay: 0.05s; }
.tt-slide.in-view .tt-slide-inner > *:nth-child(2) { transition-delay: 0.1s; }
.tt-slide.in-view .tt-slide-inner > *:nth-child(3) { transition-delay: 0.15s; }
.tt-slide.in-view .tt-slide-inner > *:nth-child(4) { transition-delay: 0.2s; }
.tt-slide.in-view .tt-slide-inner > *:nth-child(5) { transition-delay: 0.25s; }
.tt-slide.in-view .tt-slide-inner > *:nth-child(6) { transition-delay: 0.3s; }
.tt-slide.in-view .tt-slide-inner > *:nth-child(7) { transition-delay: 0.35s; }
.tt-slide.in-view .tt-slide-inner > *:nth-child(8) { transition-delay: 0.4s; }

@media (max-width: 768px) {
  .tt-dots {
    right: 8px;
    gap: 6px;
  }

  .tt-dot {
    width: 6px;
    height: 6px;
  }

  .tt-close {
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
  }

  .tt-slide {
    padding: var(--space-xl) var(--space-lg);
  }
}

@media (max-width: 480px) {
  .tt-cs-metrics {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* Navigation slide links (swipe mode) */
.tt-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.tt-nav-link {
  display: block;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  transition: all var(--transition-base);
}

.tt-nav-link:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

.tt-nav-link--home {
  background: transparent;
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.tt-nav-link--home:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
}