/* ============================================
   Design Tokens & Theme System
   ============================================ */

:root {
  --bg-primary: #09090b;
  --bg-secondary: #18181b;
  --bg-tertiary: #27272a;
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --border-color: #27272a;
  --accent: #14b8a6;
  --accent-hover: #2dd4bf;
  --accent-subtle: rgba(20, 184, 166, 0.1);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --container-max: 1200px;
  --container-padding: 1.5rem;
  --section-padding: 6rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
  --bg-primary: #f5f0e4;
  --bg-secondary: #faf6ec;
  --bg-tertiary: #ebe5d4;
  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-muted: #a8a29e;
  --border-color: #d6d0c2;
  --accent: #0d9488;
  --accent-hover: #0f766e;
  --accent-subtle: rgba(13, 148, 136, 0.1);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
}

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

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition:
    background-color var(--transition-base),
    color var(--transition-base);
}

::selection {
  background-color: var(--accent);
  color: var(--bg-primary);
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

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

.text-accent {
  color: var(--accent);
}
.text-muted {
  color: var(--text-muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 1000;
  padding: var(--space-3) var(--space-4);
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: var(--space-4);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

@media (min-width: 640px) {
  :root {
    --container-padding: 2rem;
  }
}

@media (min-width: 1024px) {
  :root {
    --container-padding: 3rem;
  }
}

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-base);
}

[data-theme="light"] .nav {
  background-color: rgba(245, 240, 228, 0.9);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.nav-brand {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-brand::after {
  content: ".";
  color: var(--accent);
}

.nav-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: 51;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  z-index: 51;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-menu {
  position: fixed;
  inset: 64px 0 auto 0;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-6) var(--container-padding);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition:
    transform var(--transition-base),
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.nav-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.nav-link {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-primary);
  padding: var(--space-2) 0;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width var(--transition-base);
}

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

.nav-link.is-active {
  color: var(--text-primary);
}
.nav-link.is-active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform 0.2s ease;
}

.theme-toggle:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--accent);
}

.theme-toggle-light {
  display: none;
}
[data-theme="light"] .theme-toggle-light {
  display: inline;
}
[data-theme="light"] .theme-toggle-dark {
  display: none;
}

.theme-toggle-desktop {
  display: none;
}

.scroll-progress {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  border: none;
  background: transparent;
  appearance: none;
}

.scroll-progress::-webkit-progress-bar {
  background: transparent;
}
.scroll-progress::-webkit-progress-value {
  background: var(--accent);
}
.scroll-progress::-moz-progress-bar {
  background: var(--accent);
}

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

  .theme-toggle-mobile {
    display: none;
  }

  .theme-toggle-desktop {
    display: flex;
  }

  .nav-menu {
    position: static;
    display: flex;
    align-items: center;
    gap: var(--space-8);
    padding: 0;
    background: transparent;
    border: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    transition: none;
  }

  .nav-links {
    flex-direction: row;
    gap: var(--space-6);
  }

  .nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
  }

  .nav-link:hover,
  .nav-link:focus,
  .nav-link.is-active {
    color: var(--text-primary);
  }

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

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--bg-primary);
  border: 1.5px solid var(--accent);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-full {
  width: 100%;
}

.btn-loader {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.btn.is-loading .btn-text {
  opacity: 0.7;
}
.btn.is-loading .btn-loader {
  display: inline-block;
}

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

/* ============================================
   Sections
   ============================================ */

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

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

.section-header-secondary {
  margin-top: var(--space-24);
  margin-bottom: var(--space-10);
}

.section-eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}

.section-title-sm {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: var(--leading-tight);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-top: var(--space-4);
  max-width: 600px;
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--text-4xl);
  }
  .section-title-sm {
    font-size: var(--text-3xl);
  }
}

@media (min-width: 1024px) {
  .section-title {
    font-size: var(--text-5xl);
  }
}

/* ============================================
   Hero
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  position: relative;
  padding-top: 100px;
  padding-bottom: var(--space-16);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 80% 50% at 50% -20%,
    var(--accent-subtle),
    transparent
  );
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      circle at 20% 50%,
      rgba(20, 184, 166, 0.06) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(20, 184, 166, 0.04) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 50% 100%,
      rgba(20, 184, 166, 0.03) 0%,
      transparent 40%
    );
  animation: meshMove 20s ease-in-out infinite;
  pointer-events: none;
}

@keyframes meshMove {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }
  33% {
    transform: translate(40px, -30px) scale(1.1);
    opacity: 0.8;
  }
  66% {
    transform: translate(-30px, 20px) scale(0.95);
    opacity: 0.9;
  }
}

.hero-content {
  position: relative;
  max-width: 900px;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: var(--space-10);
  width: 100%;
}

.hero-text {
  width: 100%;
  text-align: left;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
  text-align: center;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
  text-align: center;
}

.hero-typing {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  min-height: 2em;
  text-align: left;
}

.typing-prefix {
  color: var(--text-muted);
}
.typing-text {
  color: var(--text-primary);
}

.typing-cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.hero-description {
  font-size: var(--text-lg);
  max-width: 560px;
  margin-bottom: var(--space-8);
  text-align: left;
}

.hero-description strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: flex-start;
}

.hero-photo {
  width: 220px;
  height: 220px;
  border-radius: 28px;
  overflow: visible;
  position: relative;
  flex-shrink: 0;
  margin-bottom: 0;
  transform: rotate(-2deg);
  transition:
    transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.4s ease;
  box-shadow:
    0 0 0 3px var(--accent),
    0 16px 48px rgba(0, 0, 0, 0.35),
    0 0 60px rgba(20, 184, 166, 0.15);
}

.hero-photo::before {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 36px;
  background: linear-gradient(
    135deg,
    var(--accent),
    var(--accent-hover),
    var(--accent)
  );
  z-index: -1;
  opacity: 0.5;
  filter: blur(16px);
  transition:
    opacity 0.4s ease,
    filter 0.4s ease;
}

.hero-photo:hover {
  transform: rotate(0deg) scale(1.06);
  box-shadow:
    0 0 0 4px var(--accent),
    0 24px 64px rgba(0, 0, 0, 0.45),
    0 0 80px rgba(20, 184, 166, 0.25);
}

.hero-photo:hover::before {
  opacity: 0.8;
  filter: blur(16px);
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 28px;
}

.hero-scroll {
  display: none;
}

.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(0.5);
  }
  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

@media (min-width: 768px) {
  .hero {
    align-items: center;
    padding-top: 64px;
  }

  .hero-content {
    flex-direction: row;
    align-items: center;
    gap: clamp(5rem, 14vw, 16rem);
    max-width: 1300px;
  }

  .hero-text {
    flex: 1;
    width: auto;
  }
  .hero-eyebrow {
    text-align: left;
  }
  .hero-title {
    text-align: left;
  }

  .hero-photo {
    width: 340px;
    height: 340px;
    order: 2;
    margin-bottom: 0;
    border-radius: 36px;
  }

  .hero-photo::before {
    border-radius: 40px;
  }
  .hero-photo img {
    border-radius: 36px;
  }
  .hero-title {
    font-size: var(--text-5xl);
  }
  .hero-typing {
    font-size: var(--text-2xl);
  }

  .hero-scroll {
    display: flex;
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }
}

@media (min-width: 1024px) {
  .hero-photo {
    width: 400px;
    height: 400px;
    border-radius: 44px;
  }
  .hero-photo::before {
    border-radius: 52px;
  }
  .hero-photo img {
    border-radius: 44px;
  }
  .hero-title {
    font-size: var(--text-6xl);
  }
}

/* ============================================
   About
   ============================================ */

.about-grid {
  display: grid;
  gap: var(--space-16);
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  font-size: var(--text-lg);
}

.about-text p {
  max-width: 600px;
}

.about-personality {
  font-size: var(--text-base);
  color: var(--text-muted);
  font-style: italic;
  border-left: 2px solid var(--accent);
  padding-left: var(--space-4);
  margin-top: var(--space-2);
}

.about-credentials {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.credential-card {
  padding: var(--space-6);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    transform 0.3s ease,
    box-shadow 0.3s ease;
  transform-style: preserve-3d;
}

.credential-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.credential-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.credential-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

/* ============================================
   Skills
   ============================================ */

.skills {
  background-color: var(--bg-secondary);
}

.skills-grid {
  display: grid;
  gap: var(--space-6);
}

.skill-category {
  padding: var(--space-4);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    transform 0.3s ease,
    box-shadow 0.3s ease;
  transform-style: preserve-3d;
}

.skill-category:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.skill-category-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-1) var(--space-3);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: default;
}

.skill-item:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background-color: var(--accent-subtle);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.12);
}

.skill-item-icon {
  width: 16px;
  height: 16px;
  object-fit: contain;
  filter: brightness(0.9);
  transition: filter 0.2s ease;
  flex-shrink: 0;
}

.skill-item:hover .skill-item-icon {
  filter: brightness(1.2);
}

@media (min-width: 768px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   Experience / Timeline
   ============================================ */

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--accent) 0%,
    var(--accent-hover) 25%,
    var(--accent) 50%,
    var(--accent-hover) 75%,
    var(--accent) 100%
  );
  background-size: 100% 200%;
  animation: timelineFlow 4s linear infinite;
  border-radius: 2px;
  box-shadow:
    0 0 12px rgba(20, 184, 166, 0.25),
    0 0 4px rgba(20, 184, 166, 0.4);
}

@keyframes timelineFlow {
  0% {
    background-position: 0% 0%;
  }
  100% {
    background-position: 0% 200%;
  }
}

.timeline-item {
  position: relative;
  padding-left: var(--space-10);
  padding-bottom: var(--space-16);
  opacity: 0;
  transform: translateX(-30px);
  transition:
    opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.timeline-item.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.timeline-dot {
  position: absolute;
  left: -5px;
  top: var(--space-2);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  border: 2.5px solid var(--accent);
  box-shadow:
    0 0 0 4px var(--accent-subtle),
    0 0 12px rgba(20, 184, 166, 0.3);
  transition:
    box-shadow 0.3s ease,
    transform 0.3s ease;
  z-index: 2;
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.2);
  box-shadow:
    0 0 0 6px var(--accent-subtle),
    0 0 20px rgba(20, 184, 166, 0.5);
}

.timeline-dot.is-current {
  background-color: var(--accent);
  border-color: var(--accent);
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%,
  100% {
    box-shadow:
      0 0 0 4px var(--accent-subtle),
      0 0 12px rgba(20, 184, 166, 0.3);
  }
  50% {
    box-shadow:
      0 0 0 8px var(--accent-subtle),
      0 0 24px rgba(20, 184, 166, 0.6);
  }
}

.timeline-content {
  position: relative;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition:
    border-color 0.3s ease,
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.4s ease;
  overflow: hidden;
}

.timeline-content::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-hover));
  opacity: 0.6;
  transition:
    opacity 0.3s ease,
    width 0.3s ease;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.timeline-content:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(20, 184, 166, 0.1);
}

.timeline-content:hover::before {
  opacity: 1;
  width: 4px;
}

.timeline-date {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--accent);
  margin-bottom: var(--space-3);
  letter-spacing: 0.02em;
}

.timeline-current-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background-color: var(--accent-subtle);
  border: 1px solid var(--accent);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1;
}

.timeline-current-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
  animation: dotPulse 2s ease-in-out infinite;
}

.timeline-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  line-height: var(--leading-tight);
}

.timeline-company {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.timeline-company a {
  color: var(--accent);
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.timeline-company a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent);
  transition: width 0.25s ease;
}

.timeline-company a:hover {
  color: var(--accent-hover);
}

.timeline-company a:hover::after {
  width: 100%;
}

.timeline-desc {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition:
    max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.5s ease,
    margin-top 0.4s ease;
  margin-top: 0;
}

.timeline-desc p {
  position: relative;
  padding-left: var(--space-4);
  color: var(--text-secondary);
}

.timeline-desc p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent);
  opacity: 0.5;
}

.timeline-desc p + p {
  margin-top: var(--space-3);
}

.timeline-architecture {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition:
    max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.5s ease,
    margin-top 0.4s ease;
  margin-top: 0;
  padding: 0 var(--space-4);
  background-color: var(--accent-subtle);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.timeline-architecture strong {
  color: var(--accent);
}

.timeline-hint {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-4);
  opacity: 0.5;
  transition:
    opacity 0.3s ease,
    max-height 0.3s ease,
    margin-top 0.3s ease;
  cursor: default;
}

.timeline-hint::after {
  content: "→";
  color: var(--accent);
  transition: transform 0.3s ease;
}

/* Hover expand - only on devices that support hover */
@media (hover: hover) {
  .timeline-content:hover .timeline-desc,
  .timeline-content:hover .timeline-architecture {
    max-height: 800px;
    opacity: 1;
    margin-top: var(--space-5);
  }

  .timeline-content:hover .timeline-architecture {
    padding: var(--space-4) var(--space-4);
  }

  .timeline-content:hover .timeline-hint {
    opacity: 0;
    max-height: 0;
    margin-top: 0;
    overflow: hidden;
  }
}

/* On touch devices, always show full content */
@media (hover: none) {
  .timeline-desc,
  .timeline-architecture {
    max-height: none;
    opacity: 1;
    margin-top: var(--space-5);
  }

  .timeline-architecture {
    padding: var(--space-4) var(--space-4);
  }

  .timeline-hint {
    display: none;
  }
}

.timeline-content:hover .timeline-hint::after {
  transform: translateX(4px);
}

/* Desktop alternating layout */
@media (min-width: 768px) {
  .timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .timeline-item {
    padding-left: 0;
    width: 50%;
    transform: translateX(40px);
  }

  .timeline-item.is-visible {
    transform: translateX(0);
  }

  .timeline-item:nth-child(odd) {
    margin-left: auto;
    padding-left: var(--space-10);
  }

  .timeline-item:nth-child(even) {
    padding-right: var(--space-10);
    text-align: right;
    transform: translateX(-40px);
  }

  .timeline-item:nth-child(even).is-visible {
    transform: translateX(0);
  }

  .timeline-item:nth-child(odd) .timeline-dot {
    left: -6px;
  }

  .timeline-item:nth-child(even) .timeline-dot {
    left: auto;
    right: -6px;
  }

  .timeline-item:nth-child(even) .timeline-content {
    text-align: left;
  }

  .timeline-item:nth-child(even) .timeline-content::before {
    left: auto;
    right: 0;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  }

  .timeline-item:nth-child(even) .timeline-architecture {
    border-left: none;
    border-right: 3px solid var(--accent);
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  }

  /* Connector lines */
  .timeline-item:nth-child(odd) .timeline-content::after,
  .timeline-item:nth-child(even) .timeline-content::after {
    content: "";
    position: absolute;
    top: 24px;
    width: 24px;
    height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition:
      opacity 0.4s ease,
      width 0.4s ease;
  }

  .timeline-item:nth-child(odd) .timeline-content::after {
    left: -24px;
    background: linear-gradient(90deg, var(--accent), transparent);
  }

  .timeline-item:nth-child(even) .timeline-content::after {
    right: -24px;
    left: auto;
    background: linear-gradient(270deg, var(--accent), transparent);
  }

  .timeline-item:hover .timeline-content::after {
    opacity: 0.4;
    width: 32px;
  }

  .timeline-item:nth-child(odd):hover .timeline-content::after {
    left: -32px;
  }

  .timeline-item:nth-child(even):hover .timeline-content::after {
    right: -32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .timeline-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .timeline::before {
    animation: none;
  }
  .timeline-dot.is-current {
    animation: none;
  }
}
/* ============================================
   Education
   ============================================ */

.education-list {
  display: grid;
  gap: var(--space-4);
  max-width: 800px;
  margin: 0 auto;
}

.education-card {
  padding: var(--space-6);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    transform 0.3s ease,
    box-shadow 0.3s ease;
  transform-style: preserve-3d;
}

.education-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.education-date {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--accent);
  margin-bottom: var(--space-2);
}

.education-degree {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.education-school {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
}

.education-school a {
  color: var(--accent);
  transition: color var(--transition-fast);
}

.education-school a:hover {
  text-decoration: underline;
}

.education-desc {
  font-size: var(--text-base);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================
   Projects
   ============================================ */

.projects-featured {
  display: grid;
  gap: var(--space-8);
}

.project-card-featured {
  display: grid;
  gap: var(--space-6);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition:
    border-color var(--transition-fast),
    transform 0.3s ease,
    box-shadow 0.3s ease;
  transform-style: preserve-3d;
  overflow: hidden;
}

.project-card-featured:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.project-image {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-tertiary);
  flex-shrink: 0;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s ease;
}

.project-card-featured:hover .project-image img {
  transform: scale(1.05);
}

.project-body {
  display: flex;
  flex-direction: column;
}

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.project-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.project-subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

.project-links {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background-color: var(--accent-subtle);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--accent);
  transition: all 0.2s ease;
}

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

.project-impact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin: var(--space-4) 0;
}

.impact-metric {
  display: flex;
  flex-direction: column;
}

.impact-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.impact-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

.project-desc {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.stack-badge {
  padding: var(--space-1) var(--space-3);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.stack-badge:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.projects-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.project-card-compact {
  padding: var(--space-5);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    transform 0.3s ease,
    box-shadow 0.3s ease;
  transform-style: preserve-3d;
}

.project-card-compact:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.project-card-compact .project-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.project-card-compact .project-desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (min-width: 768px) {
  .project-card-featured {
    grid-template-columns: 280px 1fr;
    align-items: stretch;
    padding: var(--space-6);
    gap: var(--space-6);
  }

  .project-image {
    height: 100%;
  }

  .project-image img {
    height: 100%;
  }

  .project-body {
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .project-card-featured {
    grid-template-columns: 320px 1fr;
    align-items: stretch;
  }
}

/* ============================================
   Freelance
   ============================================ */

.freelance {
  background-color: var(--bg-secondary);
}

.freelance-segment {
  margin-bottom: var(--space-16);
}

.freelance-heading {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-color);
}

.freelance-grid {
  display: grid;
  gap: var(--space-6);
}

.case-study {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition:
    border-color var(--transition-fast),
    transform 0.3s ease,
    box-shadow 0.3s ease;
  transform-style: preserve-3d;
}

.case-study:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.case-study-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-2);
}

.case-study-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.case-study-client {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--accent);
}

.case-study-date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  padding: var(--space-1) var(--space-2);
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}

.case-study-problem {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  font-style: italic;
  border-left: 2px solid var(--accent);
  padding-left: var(--space-3);
}

.case-study-desc {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.case-study-impact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.case-study-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.case-study-draft {
  display: inline-block;
  margin-top: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background-color: rgba(234, 179, 8, 0.1);
  border: 1px solid rgba(234, 179, 8, 0.3);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: #eab308;
}

.services {
  margin-top: var(--space-16);
  padding: var(--space-8);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.services-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.services-list {
  display: grid;
  gap: var(--space-3);
}

.services-list li {
  position: relative;
  padding-left: var(--space-6);
  font-size: var(--text-base);
  color: var(--text-secondary);
}

.services-list li::before {
  content: "->";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
}

@media (min-width: 768px) {
  .freelance-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   Certifications
   ============================================ */

.cert-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-8);
}

.cert-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 160px;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.cert-badge:hover {
  transform: translateY(-4px);
}

.cert-badge-img {
  width: 160px;
  height: 160px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--border-color);
  background-color: var(--bg-secondary);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-badge:hover .cert-badge-img {
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cert-badge-img img {
  width: 90%;
  height: 90%;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.cert-badge:hover .cert-badge-img img {
  transform: scale(1.05);
}

.cert-title-below {
  margin-top: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
  line-height: var(--leading-tight);
  transition: color var(--transition-fast);
}

.cert-badge:hover .cert-title-below {
  color: var(--accent);
}

@media (max-width: 640px) {
  .cert-badge,
  .cert-badge-img {
    width: 120px;
    height: 120px;
  }

  .cert-title-below {
    font-size: var(--text-xs);
  }
}

/* ============================================
   Contact
   ============================================ */

.contact-grid {
  display: grid;
  gap: var(--space-16);
  max-width: 1000px;
  margin: 0 auto;
}

.contact-form-wrapper {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

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

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

.form-label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.form-input {
  padding: var(--space-3) var(--space-4);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

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

.form-status {
  font-size: var(--text-sm);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-success {
  background-color: rgba(20, 184, 166, 0.1);
  color: var(--accent);
  border: 1px solid var(--accent);
}

.form-status.is-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.form-submit-area .btn-full.is-hidden {
  display: none;
}

.email-choice {
  display: none;
  flex-direction: column;
  gap: var(--space-3);
}

.email-choice.is-visible {
  display: flex;
}

.email-choice-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
  text-align: center;
}

.email-choice-buttons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

.email-choice-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: all 0.2s ease;
  cursor: pointer;
}

.email-choice-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-subtle);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.contact-block-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}

.contact-link {
  font-size: var(--text-lg);
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: var(--accent);
}

.social-links {
  display: flex;
  gap: var(--space-4);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

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

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

/* ============================================
   Footer
   ============================================ */

.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.footer-grid {
  display: grid;
  gap: var(--space-10);
  margin-bottom: var(--space-16);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.footer-logo::after {
  content: ".";
  color: var(--accent);
}

.footer-tagline {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
  max-width: 280px;
}

.footer-heading {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.footer-credit {
  font-family: var(--font-mono);
  font-size: var(--text-xs) !important;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ============================================
   Back to Top
   ============================================ */

.to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  z-index: 40;
}

.to-top:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.to-top[hidden] {
  display: none;
}

/* ============================================
   Scroll Reveals
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .nav,
  .hero-scroll,
  .to-top,
  .theme-toggle,
  .hero-actions {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  a {
    text-decoration: underline;
  }

  .section {
    padding: 2rem 0;
  }
}