/* ==========================================================================
   ARPIT CHOUKSEY — BESPOKE FULL STACK PORTFOLIO
   Design System & Production Stylesheet
   ========================================================================== */

/* --- 1. CSS Variables & Tokens --- */
:root {
  /* Color Palette - Deep Obsidian & Graphite */
  --bg-primary: #0a0c12;
  --bg-secondary: #0f121a;
  --bg-tertiary: #161a26;
  --bg-card: rgba(18, 22, 33, 0.7);
  --bg-card-hover: rgba(24, 30, 46, 0.85);
  
  /* Text & Foreground */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;
  
  /* Functional & Accent Colors */
  --accent-cyan: #38bdf8;
  --accent-cyan-glow: rgba(56, 189, 248, 0.18);
  --accent-indigo: #6366f1;
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.2);
  
  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);
  --border-focus: rgba(56, 189, 248, 0.5);
  
  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  /* Transitions */
  --transition-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 240ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Shadows & Depth */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.12);
  
  /* Layout */
  --container-max: 1200px;
  --container-padding: 24px;
}

/* --- 2. Baseline Reset & Global Styles --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  background-image: 
    radial-gradient(ellipse 60% 40% at 50% -10%, rgba(56, 189, 248, 0.07), transparent),
    radial-gradient(ellipse 40% 30% at 85% 60%, rgba(99, 102, 241, 0.04), transparent);
  background-attachment: fixed;
}

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

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

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

ul {
  list-style: none;
}

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

.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* --- 3. Header & Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 12, 18, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-name {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.brand-tag {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 3px 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  color: var(--accent-cyan);
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.desktop-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.938rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-cyan);
  transition: width var(--transition-fast);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  padding: 0;
  background: transparent;
  border: none;
}

.mobile-toggle .bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-toggle.is-active .bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-toggle.is-active .bar:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.is-active .bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-drawer {
  display: none;
  border-bottom: 1px solid var(--border-light);
  background-color: var(--bg-secondary);
  padding: 24px var(--container-padding);
}

.mobile-drawer.is-open {
  display: block;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav-link {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  padding: 8px 0;
}

.mobile-nav-cta {
  padding-top: 12px;
}

/* --- 4. Buttons & Shared Components --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.938rem;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background-color: #ffffff;
  color: #0a0c12;
  border: 1px solid #ffffff;
  box-shadow: 0 2px 10px rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background-color: #e2e8f0;
  border-color: #e2e8f0;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255, 255, 255, 0.22);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background-color: rgba(30, 36, 52, 0.9);
  border-color: rgba(255, 255, 255, 0.24);
  color: #ffffff;
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  color: #ffffff;
  border-color: var(--accent-cyan);
  background: var(--accent-cyan-glow);
}

.btn-arrow,
.btn-arrow-down {
  transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(3px);
}

.btn-secondary:hover .btn-arrow-down {
  transform: translateY(3px);
}

/* Section Labels & Headings */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 24px;
}

.section-label .label-idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-sm);
}

.section-header-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 44px;
}

.section-lead-inline {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 680px;
}

/* --- 5. Hero Section --- */
.hero-section {
  padding-top: 64px;
  padding-bottom: 96px;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 64px;
  align-items: center;
}

.hero-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.22);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.status-pulse,
.dot-live {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  display: inline-block;
  position: relative;
}

.status-pulse::after,
.dot-live::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1.5px solid var(--accent-emerald);
  animation: pulseRing 2s cubic-bezier(0.25, 1, 0.5, 1) infinite;
}

@keyframes pulseRing {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hero-headline {
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.05;
  color: #ffffff;
  margin-bottom: 18px;
}

.hero-subheadline {
  font-size: clamp(1.2rem, 2.2vw, 1.45rem);
  font-weight: 500;
  line-height: 1.45;
  color: #e2e8f0;
  margin-bottom: 18px;
  max-width: 600px;
}

.hero-supporting {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.meta-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.meta-value {
  color: var(--text-primary);
  font-weight: 500;
}

.meta-divider {
  width: 1px;
  height: 28px;
  background: var(--border-subtle);
}

/* Hero Media - Portrait */
.portrait-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.portrait-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

.portrait-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: #11141e;
}

.portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: contrast(1.03) saturate(1.02);
  transition: transform var(--transition-smooth);
}

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

.portrait-overlay-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10, 12, 18, 0.9) 100%);
  pointer-events: none;
}

.portrait-footer {
  padding: 16px 20px;
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.portrait-identity {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.portrait-name {
  font-weight: 700;
  font-size: 0.938rem;
  color: #ffffff;
}

.portrait-role {
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

.portrait-badge {
  font-size: 0.75rem;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(16, 185, 129, 0.1);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* --- 6. About Section --- */
.about-section {
  padding: 96px 0;
  border-top: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(15, 18, 26, 0.5) 0%, rgba(10, 12, 18, 0.8) 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.3fr;
  gap: 64px;
}

.about-heading {
  font-size: clamp(1.6rem, 2.8vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.about-body {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.about-paragraph {
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.about-paragraph.highlight {
  color: #e2e8f0;
  font-size: 1.1875rem;
}

.about-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  transition: all var(--transition-fast);
}

.pillar-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.pillar-num {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  font-weight: 600;
}

.pillar-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.pillar-desc {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* --- 7. Tech Stack Section --- */
.tech-section {
  padding: 96px 0;
  border-top: 1px solid var(--border-subtle);
}

.tech-stack-layout {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tech-category-row {
  display: grid;
  grid-template-columns: 260px 1fr;
  align-items: center;
  gap: 32px;
  padding: 24px 28px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.tech-category-row:hover {
  border-color: var(--border-light);
  background-color: rgba(22, 26, 38, 0.6);
}

.tech-category-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cat-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.04em;
}

.cat-tag svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.cat-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.tech-pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.938rem;
  font-weight: 500;
  color: #f1f5f9;
  transition: all var(--transition-fast);
}

.tech-item:hover {
  background: rgba(36, 44, 64, 0.9);
  border-color: rgba(56, 189, 248, 0.35);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.tech-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.tech-item:hover .tech-icon {
  transform: scale(1.1);
}

/* --- 8. Work / Clients Section --- */
.work-section {
  padding: 96px 0;
  border-top: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(10, 12, 18, 0.4) 0%, rgba(15, 18, 26, 0.7) 100%);
}

.projects-list {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.project-entry {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 48px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  align-items: center;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.project-entry:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-md);
}

.project-meta-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.project-num {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.06em;
}

.project-title {
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.2;
}

.project-domain {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.project-desc {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: #cbd5e1;
}

.project-links {
  margin-top: 8px;
}

.link-external {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.938rem;
  font-weight: 600;
  color: #ffffff;
  border-bottom: 1.5px solid var(--accent-cyan);
  padding-bottom: 2px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.link-external:hover {
  color: var(--accent-cyan);
  border-color: #ffffff;
}

.link-external svg {
  transition: transform var(--transition-fast);
}

.link-external:hover svg {
  transform: translate(2px, -2px);
}

/* Real-Time Platform Feature List */
.project-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  background: rgba(10, 12, 18, 0.5);
  border: 1px solid var(--border-subtle);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
}

.feat-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.feat-bullet {
  color: var(--accent-cyan);
}

/* Device Mockups Container */
.device-showcase {
  display: flex;
  align-items: flex-end;
  gap: 18px;
  position: relative;
}

/* Desktop Browser Frame */
.device-browser {
  flex: 1;
  background: #0d1017;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.7);
  transition: transform var(--transition-normal);
}

.device-browser:hover {
  transform: translateY(-2px);
}

.device-browser.full-span {
  width: 100%;
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #141722;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.browser-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.browser-dots .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.browser-dots .dot.red { background: #ef4444; }
.browser-dots .dot.yellow { background: #f59e0b; }
.browser-dots .dot.green { background: #10b981; }

.browser-address {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.35);
  padding: 3px 12px;
  border-radius: var(--radius-sm);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser-status-chip {
  font-size: 0.7rem;
  color: var(--accent-emerald);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(16, 185, 129, 0.1);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.pulse-green {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

.browser-viewport {
  background: #090a0f;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.browser-viewport img.showcase-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--transition-smooth);
}

.device-browser:hover .browser-viewport img.showcase-img {
  transform: scale(1.02);
}

/* Mobile Phone Frame */
.device-phone {
  width: 140px;
  background: #0d1017;
  border: 2.5px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  padding: 8px 6px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.85);
  margin-bottom: -10px;
  position: relative;
  z-index: 2;
  transition: transform var(--transition-normal);
}

.device-phone:hover {
  transform: translateY(-4px);
}

.phone-speaker {
  width: 32px;
  height: 4px;
  background: #2a2f3e;
  border-radius: 4px;
  margin: 2px auto 8px auto;
}

.phone-viewport {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 9 / 16;
  background: #050608;
}

.phone-viewport img.showcase-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

/* Aartech Solonics Light-Touch Framing Card */
.client-partner-card {
  grid-template-columns: 1fr;
  padding: 0;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(20, 24, 36, 0.85) 0%, rgba(15, 18, 26, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.partner-card-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
}

.partner-info {
  padding: 44px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.partner-framing {
  font-size: 1.1875rem;
  font-weight: 500;
  color: #e2e8f0;
  line-height: 1.5;
}

.partner-visual {
  height: 100%;
  overflow: hidden;
  position: relative;
  background: #090a0f;
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-preview-frame {
  width: 100%;
  height: 100%;
  min-height: 320px;
  position: relative;
}

.partner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: contrast(1.05);
  transition: transform var(--transition-smooth);
}

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

/* --- 9. Contact / Connect Section --- */
.contact-section {
  padding: 108px 0 96px 0;
  border-top: 1px solid var(--border-subtle);
}

.contact-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  box-shadow: var(--shadow-lg);
}

.contact-header {
  margin-bottom: 44px;
}

.contact-heading {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #ffffff;
  line-height: 1.15;
  margin-bottom: 14px;
}

.contact-sub {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 720px;
}

.contact-actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.action-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  transition: border-color var(--transition-fast);
}

.action-card:hover {
  border-color: var(--border-light);
}

.action-card.highlight-card {
  background: linear-gradient(145deg, rgba(26, 32, 48, 0.9) 0%, rgba(18, 22, 34, 0.9) 100%);
  border-color: rgba(56, 189, 248, 0.25);
  box-shadow: var(--shadow-glow);
}

.action-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.action-icon {
  font-size: 1.25rem;
}

.action-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}

.action-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.action-desc {
  font-size: 0.938rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.email-display {
  font-size: 1rem;
  color: var(--accent-cyan);
  word-break: break-all;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  margin-top: 8px;
}

.email-btn-group {
  display: flex;
  gap: 10px;
  align-items: center;
}

.social-channels-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

.social-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.social-btn:hover {
  background: rgba(36, 44, 64, 0.9);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  transform: translateY(-1px);
}

/* --- 10. Footer --- */
.site-footer {
  padding: 36px 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-primary);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-name {
  font-weight: 700;
  color: #ffffff;
  font-size: 0.938rem;
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.back-to-top {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  padding: 6px 12px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.back-to-top:hover {
  color: #ffffff;
  border-color: var(--accent-cyan);
}

/* --- 11. Interactive Cal.com Modal --- */
.cal-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(5, 7, 11, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.cal-modal-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.cal-modal-container {
  width: 100%;
  max-width: 960px;
  height: 85vh;
  max-height: 800px;
  background: #0e111a;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.9);
  transform: scale(0.96) translateY(12px);
  transition: transform var(--transition-normal);
}

.cal-modal-overlay.is-visible .cal-modal-container {
  transform: scale(1) translateY(0);
}

.cal-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: #141724;
  border-bottom: 1px solid var(--border-subtle);
}

.cal-modal-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cal-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

.cal-modal-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: #ffffff;
}

.cal-modal-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cal-external-link {
  font-size: 0.8125rem;
  color: var(--accent-cyan);
}

.cal-external-link:hover {
  text-decoration: underline;
}

.cal-modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.04);
  transition: all var(--transition-fast);
}

.cal-modal-close:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.cal-iframe-wrap {
  flex: 1;
  position: relative;
  background: #ffffff;
}

.cal-loading {
  position: absolute;
  inset: 0;
  background: #0e111a;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  z-index: 10;
  transition: opacity var(--transition-fast);
}

.cal-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(56, 189, 248, 0.2);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

#cal-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* --- 12. Responsive Media Queries --- */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-media {
    max-width: 440px;
    margin: 0 auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .about-pillars {
    grid-template-columns: 1fr;
  }

  .project-entry {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 32px 24px;
  }

  .partner-card-inner {
    grid-template-columns: 1fr;
  }

  .partner-visual {
    min-height: 260px;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 18px;
  }

  .desktop-nav {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  #header-cta-btn {
    display: none;
  }

  .tech-category-row {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 20px 18px;
  }

  .device-showcase {
    flex-direction: column;
    align-items: stretch;
  }

  .device-phone {
    width: 100%;
    max-width: 220px;
    margin: 16px auto 0 auto;
  }

  .contact-card {
    padding: 36px 20px;
  }

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

  .social-channels-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-headline {
    font-size: 2.4rem;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-meta-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .meta-divider {
    display: none;
  }

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