/* 
 * Ron Automates — Learning Experience Designer & EdTech Automation
 * Premium Light Theme — v2
 * Design System + All Components
 */

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

/* --- Design Tokens --- */
:root {
  /* Colors — Warm & Professional */
  --c-primary: #0ea5e9;
  --c-primary-light: #e0f2fe;
  --c-primary-dark: #0284c7;
  --c-primary-50: #f0f9ff;
  --c-primary-glow: rgba(14, 165, 233, 0.12);

  --c-secondary: #f59e0b;
  --c-secondary-light: #fef3c7;
  --c-secondary-dark: #d97706;
  --c-secondary-glow: rgba(245, 158, 11, 0.12);

  --c-accent: #8b5cf6;
  --c-accent-light: #ede9fe;

  --c-bg: #fafbfc;
  --c-bg-alt: #ffffff;
  --c-bg-light: #f1f5f9;
  --c-bg-warm: #fffbeb;

  --c-text: #475569;
  --c-text-light: #94a3b8;
  --c-text-dark: #0f172a;
  --c-text-heading: #1e293b;

  --c-border: #e2e8f0;
  --c-border-hover: #cbd5e1;

  /* Typography */
  --font-heading: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Shadows — Layered for depth */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
  --shadow-glow-primary: 0 0 20px var(--c-primary-glow), 0 4px 12px rgba(14, 165, 233, 0.08);
  --shadow-glow-warm: 0 0 20px var(--c-secondary-glow), 0 4px 12px rgba(245, 158, 11, 0.08);

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms var(--ease-out-expo);
  --transition-slow: 500ms var(--ease-out-expo);

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--c-text);
  background-color: var(--c-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--c-text-heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

p {
  line-height: 1.7;
}

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

a:hover {
  color: var(--c-primary-dark);
}

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

/* --- Utilities --- */
.container {
  max-width: var(--container-max);
  margin: auto; /* auto margin inside flex column ensures safe vertical centering */
  padding: 0 2rem;
}

.text-center { text-align: center; }
.text-teal { color: var(--c-primary); }
.text-amber { color: var(--c-secondary); }

.bg-light {
  background-color: rgba(241, 245, 249, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.section {
  padding: 2.5rem 0;
  position: relative;
  scroll-margin-top: 80px;
  min-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  /* Removed justify-content: center to prevent tall sections from clipping at the top */
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--c-primary);
  margin-bottom: 1rem;
  padding: 0.35rem 1rem;
  background-color: var(--c-primary-50);
  border: 1px solid var(--c-primary-light);
  border-radius: var(--radius-full);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--c-text-dark);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--c-text-light);
  max-width: 600px;
  line-height: 1.7;
}

.text-center .section-subtitle {
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: white;
  box-shadow: var(--shadow-sm), 0 2px 8px var(--c-primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--c-primary-dark), #0369a1);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), 0 4px 16px var(--c-primary-glow);
}

.btn-secondary {
  background-color: var(--c-text-dark);
  color: white;
}

.btn-secondary:hover {
  background-color: #000;
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--c-border);
  color: var(--c-text-dark);
  font-weight: 500;
}

.btn-outline:hover {
  border-color: var(--c-text-dark);
  background-color: var(--c-bg-alt);
  color: var(--c-text-dark);
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background-color: rgba(250, 251, 252, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: var(--shadow-xs);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text-dark);
  letter-spacing: -0.02em;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a:not(.btn):not(.icon-link) {
  color: var(--c-text);
  font-weight: 500;
  font-size: 0.9rem;
  position: relative;
}

.nav-links a:not(.btn):not(.icon-link)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.nav-links a:not(.btn):not(.icon-link):hover {
  color: var(--c-primary);
}

.nav-links a:not(.btn):not(.icon-link):hover::after {
  width: 100%;
}

.nav-external {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: 1.5rem;
  padding-left: 1.5rem;
  border-left: 1px solid var(--c-border);
}

.icon-link {
  color: var(--c-text-light);
  display: flex;
  align-items: center;
  width: 36px;
  height: 36px;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.icon-link:hover {
  color: var(--c-primary);
  background-color: var(--c-primary-50);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--c-text-dark);
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.mobile-menu-btn:hover {
  background-color: var(--c-bg-light);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  height: calc(100vh - var(--nav-height));
  z-index: 999;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-link {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--c-text-dark);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--c-border);
  transition: color var(--transition-fast);
}

.mobile-link:hover {
  color: var(--c-primary);
}

.mobile-external {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  background: linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-alt) 100%);
}

/* Subtle dot grid pattern */
.hero-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle, var(--c-border) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
  animation: float 25s infinite ease-in-out alternate;
}

.blob-1 {
  top: 5%;
  right: -5%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, var(--c-primary-light) 0%, transparent 70%);
}

.blob-2 {
  bottom: -15%;
  left: -10%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--c-secondary-light) 0%, transparent 70%);
  animation-delay: -8s;
  animation-duration: 30s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(3%, -2%) scale(1.03); }
  66% { transform: translate(-2%, 4%) scale(0.97); }
  100% { transform: translate(1%, 2%) scale(1.01); }
}

.hero-container {
  max-width: 850px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1.25rem;
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  color: var(--c-text-dark);
}

.text-gradient {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 50%, var(--c-secondary) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 6s ease infinite;
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--c-text);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--c-text-light);
  animation: bounce 2.5s infinite;
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.scroll-indicator:hover {
  opacity: 1;
  color: var(--c-primary);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
  40% { transform: translateY(-12px) translateX(-50%); }
  60% { transform: translateY(-6px) translateX(-50%); }
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: start;
}

.about-content p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--c-text);
}

.about-content p:first-child {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--c-text-dark);
}

.about-content p:last-child {
  margin-bottom: 0;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.stat-card {
  background-color: var(--c-bg-alt);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

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

.stat-icon {
  width: 1.75rem;
  height: 1.75rem;
  margin-bottom: 0.75rem;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--c-text-dark);
  margin-bottom: 0.15rem;
  letter-spacing: -0.01em;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--c-text-light);
  line-height: 1.4;
}

/* ============================================
   PROCESS / TIMELINE SECTION
   ============================================ */
.timeline {
  max-width: 780px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-primary-light), var(--c-border), var(--c-secondary-light));
}

.timeline-item {
  position: relative;
  padding-left: 4.5rem;
  margin-bottom: 2.5rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: 0;
  top: 0.25rem;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  color: white;
  font-size: 1.1rem;
  z-index: 1;
  box-shadow: var(--shadow-sm), 0 0 0 4px var(--c-bg-light), 0 0 0 6px var(--c-primary-light);
  transition: all var(--transition-base);
}

.timeline-item:hover .timeline-marker {
  transform: scale(1.1);
  box-shadow: var(--shadow-md), 0 0 0 4px var(--c-bg-light), 0 0 0 6px var(--c-primary);
}

.timeline-content {
  background-color: var(--c-bg-alt);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  transition: all var(--transition-base);
}

.timeline-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
  border-color: var(--c-border-hover);
}

.timeline-content h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--c-text-dark);
}

.timeline-content p {
  color: var(--c-text);
  font-size: 0.95rem;
}

/* ============================================
   PORTFOLIO SECTION
   ============================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.project-card {
  background-color: var(--c-bg-alt);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--c-border-hover);
}

.project-header {
  height: 180px;
  position: relative;
  overflow: hidden;
}

.project-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(to top, var(--c-bg-alt), transparent);
}

.gradient-1 {
  background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 40%, #e0f2fe 100%);
  background-size: 200% 200%;
  animation: subtle-gradient 8s ease infinite;
}

.gradient-2 {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 40%, #fef3c7 100%);
  background-size: 200% 200%;
  animation: subtle-gradient 8s ease infinite;
  animation-delay: -3s;
}

.gradient-3 {
  background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 40%, #ede9fe 100%);
  background-size: 200% 200%;
  animation: subtle-gradient 8s ease infinite;
  animation-delay: -6s;
}

@keyframes subtle-gradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.project-body {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--c-text-dark);
}

.project-desc {
  color: var(--c-text);
  margin-bottom: 1.5rem;
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background-color: var(--c-bg-light);
  color: var(--c-text);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--c-border);
  transition: all var(--transition-fast);
}

.project-card:hover .tag {
  border-color: var(--c-border-hover);
}

.cta-card {
  background-color: var(--c-primary-50);
  border: 2px dashed var(--c-primary-light);
  box-shadow: none;
}

.cta-card:hover {
  background-color: var(--c-primary-light);
  border-color: var(--c-primary);
  box-shadow: var(--shadow-glow-primary);
}

.cta-card-content {
  padding: 3rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.cta-icon {
  color: var(--c-primary);
  margin-bottom: 1.25rem;
}

.cta-icon svg {
  width: 3rem;
  height: 3rem;
}

.cta-card-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.cta-card-content p {
  color: var(--c-text);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

/* ============================================
   STACK SECTION
   ============================================ */
.stack-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.stack-group-title {
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
  color: var(--c-text-dark);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stack-group-title::before {
  content: '';
  width: 4px;
  height: 20px;
  background: linear-gradient(180deg, var(--c-primary), var(--c-secondary));
  border-radius: var(--radius-full);
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
}

.stack-item {
  background-color: var(--c-bg-alt);
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  font-size: 0.9rem;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-base);
  cursor: default;
}

.stack-item:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-sm), 0 0 0 3px var(--c-primary-50);
  transform: translateY(-2px);
}

.stack-item span {
  font-size: 1.25rem;
  line-height: 1;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 3rem;
  align-items: start;
}

.contact-form-container {
  background-color: var(--c-bg-alt);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--c-border);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--c-text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background-color: var(--c-bg);
  color: var(--c-text-dark);
  transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--c-text-light);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px var(--c-primary-light);
  background-color: var(--c-bg-alt);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  width: 100%;
}

.submit-btn svg {
  width: 18px;
  height: 18px;
}

.form-status {
  margin-top: 1rem;
  text-align: center;
  font-weight: 500;
  font-size: 0.9rem;
  min-height: 1.5em;
}

.form-status.success { color: #059669; }
.form-status.error { color: #dc2626; }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-card {
  background-color: var(--c-bg-alt);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-base);
}

.contact-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--c-border-hover);
  transform: translateX(4px);
}

.contact-icon {
  width: 2.75rem;
  height: 2.75rem;
  background-color: var(--c-primary-50);
  color: var(--c-primary-dark);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.contact-card:hover .contact-icon {
  background-color: var(--c-primary-light);
}

.contact-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.contact-details h3 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
  font-weight: 600;
}

.contact-details p {
  font-size: 0.85rem;
  color: var(--c-text-light);
  margin-bottom: 0.35rem;
}

.contact-link {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--c-primary);
}

.contact-link:hover {
  color: var(--c-primary-dark);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-color: var(--c-bg-alt);
  padding: 2.5rem 0;
  border-top: 1px solid var(--c-border);
}

.footer p {
  color: var(--c-text-light);
  font-size: 0.875rem;
}

/* --- Shared transition timing --- */
:root {
  --ease-apple: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Generic fallback (hero elements) */
.reveal {
  opacity: 0;
  transform: translateY(22px) scale(0.98);
  filter: blur(5px);
  transition: opacity 1.8s var(--ease-apple),
              transform 1.8s var(--ease-apple),
              filter 1.8s var(--ease-apple);
  will-change: opacity, transform, filter;
}
.reveal.active {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

/* ABOUT: Left col slides from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-36px);
  filter: blur(4px);
  transition: opacity 1.8s var(--ease-apple),
              transform 1.8s var(--ease-apple),
              filter 1.8s var(--ease-apple);
  will-change: opacity, transform, filter;
}
.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

/* ABOUT: Right col slides from right */
.reveal-right {
  opacity: 0;
  transform: translateX(36px);
  filter: blur(4px);
  transition: opacity 1.8s var(--ease-apple) 0.25s,
              transform 1.8s var(--ease-apple) 0.25s,
              filter 1.8s var(--ease-apple) 0.25s;
  will-change: opacity, transform, filter;
}
.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

/* PROCESS / STACK headings: scales in from center */
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  filter: blur(8px);
  transition: opacity 1.9s var(--ease-apple),
              transform 1.9s var(--ease-apple),
              filter 1.9s var(--ease-apple);
  will-change: opacity, transform, filter;
}
.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

/* PROCESS cards: cascade in one-by-one — slower, more deliberate */
.reveal-cascade {
  opacity: 0;
  transform: translateY(30px);
  filter: blur(4px);
  transition: opacity 1.5s var(--ease-apple) calc(var(--cascade-i, 0) * 0.2s),
              transform 1.5s var(--ease-apple) calc(var(--cascade-i, 0) * 0.2s),
              filter 1.5s var(--ease-apple) calc(var(--cascade-i, 0) * 0.2s);
  will-change: opacity, transform, filter;
}
.reveal-cascade.active {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* PORTFOLIO: cinematic slow zoom — the showstopper */
.reveal-cinematic {
  opacity: 0;
  transform: translateY(50px) scale(0.96);
  filter: blur(12px);
  transition: opacity 2.0s var(--ease-apple),
              transform 2.0s var(--ease-apple),
              filter 2.0s var(--ease-apple);
  will-change: opacity, transform, filter;
}
.reveal-cinematic.active {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

/* CONTACT / ABOUT title: vertical stretch reveal */
.reveal-split {
  opacity: 0;
  transform: translateY(16px) scaleY(0.9);
  filter: blur(6px);
  transform-origin: top center;
  transition: opacity 1.8s var(--ease-apple),
              transform 1.8s var(--ease-apple),
              filter 1.8s var(--ease-apple);
  will-change: opacity, transform, filter;
}
.reveal-split.active {
  opacity: 1;
  transform: translateY(0) scaleY(1);
  filter: blur(0);
}

/* Simple up reveal for smaller elements */
.reveal-up {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 1.6s var(--ease-apple) 0.3s,
              transform 1.6s var(--ease-apple) 0.3s;
  will-change: opacity, transform;
}
.reveal-up.active {
  opacity: 1;
  transform: translateY(0);
}

/* Hero parallax container */
.hero-parallax {
  will-change: transform;
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }


/* Spinner for form loading */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spin {
  animation: spin 1s linear infinite;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .stack-container {
    grid-template-columns: 1fr;
  }
}

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

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

  .section {
    padding: 5rem 0;
  }

  .hero-title {
    font-size: clamp(2rem, 7vw, 2.75rem);
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }

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

  .section-title {
    font-size: clamp(1.75rem, 5vw, 2.25rem);
  }

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

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

  .timeline::before {
    left: 18px;
  }

  .timeline-marker {
    width: 38px;
    height: 38px;
    font-size: 0.9rem;
  }

  .timeline-item {
    padding-left: 3.5rem;
  }

  .contact-form-container {
    padding: 2rem;
  }

  .container {
    padding: 0 1.25rem;
  }

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

@media (max-width: 480px) {
  .about-stats {
    grid-template-columns: 1fr;
  }

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

  .hero-badge {
    font-size: 0.8rem;
    padding: 0.4rem 1rem;
  }
}

/* Lightbox Styles */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
    padding: 2rem;
    cursor: zoom-out;
}

.lightbox.active {
    opacity: 1;
    pointer-events: all;
}

.lightbox img {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: scale(0.95) translateY(20px);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    object-fit: contain;
}

.lightbox.active img {
    transform: scale(1) translateY(0);
}


/* ============================================
   MARQUEE ANIMATIONS
   ============================================ */
.marquee-container {
    width: 100%;
    overflow: hidden;
    position: relative;
}

/* Gradient fade on edges */
.marquee-container::before,
.marquee-container::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 10%;
    z-index: 2;
    pointer-events: none;
}
.marquee-container::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-light) 0%, transparent 100%);
}
.marquee-container::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-light) 0%, transparent 100%);
}

.marquee {
    display: flex;
    overflow: hidden;
    user-select: none;
    gap: 1.5rem;
}

.marquee-content {
    display: flex;
    flex-shrink: 0;
    min-width: 100%;
    gap: 1.5rem;
    animation: scroll-left 30s linear infinite;
}

.marquee-content.right {
    animation: scroll-right 30s linear infinite;
}

.marquee:hover .marquee-content {
    animation-play-state: paused;
}

.marquee .stack-item {
    background-color: white;
    border: 1px solid var(--c-border);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.marquee .stack-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-color: var(--c-primary-light);
}

@keyframes scroll-left {
    from { transform: translateX(0); }
    to { transform: translateX(calc(-50% - 0.75rem)); }
}

@keyframes scroll-right {
    from { transform: translateX(calc(-50% - 0.75rem)); }
    to { transform: translateX(0); }
}


/* Fix anchor scrolling */
html {
    scroll-behavior: smooth;
}
.section {
    scroll-margin-top: 80px;
}


/* --- Aggressive Compression for Short Screens --- */
@media (max-height: 750px) {
  .section {
    padding: 1.5rem 0 !important;
    scroll-margin-top: 72px !important;
  }
  .section-header {
    margin-bottom: 1.5rem !important;
  }
  .section-label {
    margin-bottom: 0.5rem !important;
  }
  .section-title {
    font-size: 2rem !important;
    margin-bottom: 0.5rem !important;
  }
  .about-grid {
    gap: 1.5rem !important;
  }
  .stat-card {
    padding: 1rem !important;
  }
  .stat-icon {
    width: 20px;
    height: 20px;
    margin-bottom: 0.5rem !important;
  }
  .about-content p {
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
    margin-bottom: 0.75rem !important;
  }
  .btn {
    padding: 0.6rem 1.25rem !important;
    font-size: 0.9rem !important;
  }
  /* Portfolio */
  .portfolio-showcase > div {
    padding: 1.5rem !important;
  }
  .portfolio-showcase h2 {
    font-size: 2rem !important;
    margin-bottom: 0.25rem !important;
  }
  .portfolio-showcase p {
    font-size: 0.85rem !important;
    margin-bottom: 0.75rem !important;
  }
  /* Contact */
  .contact-form-container {
    padding: 1.5rem !important;
  }
  .contact-grid {
    gap: 1.5rem !important;
  }
  .form-group {
    margin-bottom: 1rem !important;
  }
  .form-group input, .form-group textarea {
    padding: 0.6rem 1rem !important;
  }
}


/* --- NEW COMPRESSED PROCESS GRID --- */
.process-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}
.process-card {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    backdrop-filter: blur(8px);
}
.process-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--c-primary-light);
}
.process-num {
    width: 32px;
    height: 32px;
    background: var(--c-primary-100, #e0f2fe);
    color: var(--c-primary-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    margin: 0 auto 0.75rem auto;
}
.process-card h3 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--c-text-dark);
}
.process-card p {
    font-size: 0.75rem;
    color: var(--c-text);
    line-height: 1.4;
    margin: 0;
}
@media (max-width: 1024px) {
    .process-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .process-grid { grid-template-columns: 1fr; }
}


/* --- PORTFOLIO RESPONSIVE GRIDS --- */
.portfolio-card-inner {
    padding: 2.5rem;
}
.portfolio-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1.35fr;
    gap: 2.5rem;
    align-items: start;
}
.portfolio-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
}
.portfolio-images-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 1024px) {
    .portfolio-showcase-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .portfolio-card-inner {
        padding: 1.5rem;
    }
    .portfolio-showcase-grid {
        gap: 1.5rem;
    }
    .portfolio-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .portfolio-images-grid {
        grid-template-columns: 1fr;
    }
}