/* ============================================
   CSS Custom Properties & Reset
   ============================================ */
:root {
  --color-bg: #0a0a0f;
  --color-bg-alt: #12121a;
  --color-bg-card: #16161f;
  --color-bg-card-hover: #1c1c28;
  --color-surface: #1e1e2a;
  --color-border: #2a2a3a;
  --color-border-light: #3a3a4a;
  --color-text: #e4e4ed;
  --color-text-muted: #8888a0;
  --color-text-dim: #5a5a72;
  --color-primary: #6c63ff;
  --color-primary-light: #8b83ff;
  --color-primary-dark: #5046e5;
  --color-primary-glow: rgba(108, 99, 255, 0.15);
  --color-accent: #00d4aa;
  --color-accent-glow: rgba(0, 212, 170, 0.15);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light mode overrides */
[data-theme="light"] {
  --color-bg: #f5f5fa;
  --color-bg-alt: #eeeef4;
  --color-bg-card: #ffffff;
  --color-bg-card-hover: #f0f0f8;
  --color-surface: #e8e8f0;
  --color-border: #d0d0dc;
  --color-border-light: #b8b8c8;
  --color-text: #1a1a2e;
  --color-text-muted: #4a4a64;
  --color-text-dim: #6e6e88;
  --color-primary: #5a50e6;
  --color-primary-light: #6c63ff;
  --color-primary-dark: #4a3fd0;
  --color-primary-glow: rgba(90, 80, 230, 0.1);
  --color-accent: #00b894;
  --color-accent-glow: rgba(0, 184, 148, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* ============================================
   Layout
   ============================================ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 60px;
  text-align: center;
  position: relative;
}

.section__title::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  margin: 16px auto 0;
  border-radius: 2px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 15px rgba(108, 99, 255, 0.3);
}

.btn--primary:hover {
  background: var(--color-primary-light);
  box-shadow: 0 6px 25px rgba(108, 99, 255, 0.4);
  transform: translateY(-2px);
}

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

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  transform: translateY(-2px);
}

.btn--small {
  padding: 8px 20px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
}

.btn--small:hover {
  background: var(--color-primary-light);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.2);
}

.btn--full {
  width: 100%;
  justify-content: center;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-base);
}

.nav--scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

.nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav__logo-symbol {
  color: var(--color-primary);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

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

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

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

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
  border-radius: 1px;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-text);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108, 99, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 99, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero__photo {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  background-repeat: no-repeat;
  opacity: 0.32;
  transition: opacity 0.4s ease;
}

[data-theme="light"] .hero__photo {
  opacity: 0.22;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    var(--color-bg) 100%
  );
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
}

.hero__glow--1 {
  width: 500px;
  height: 500px;
  background: var(--color-primary);
  top: -150px;
  right: -100px;
  opacity: 0.08;
}

.hero__glow--2 {
  width: 400px;
  height: 400px;
  background: var(--color-accent);
  bottom: -100px;
  left: -100px;
  opacity: 0.06;
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-top: 80px;
}

.hero__greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-primary-light);
  margin-bottom: 12px;
}

.hero__name {
  font-size: clamp(2.8rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__title {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 400;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.hero__amp {
  color: var(--color-primary);
  font-weight: 600;
}

.hero__description {
  max-width: 520px;
  color: var(--color-text-dim);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   Animations
   ============================================ */
.animate-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--delay, 0s);
}

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

/* ============================================
   About Section
   ============================================ */
.about__grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
}

.about__image-wrapper {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about__image-placeholder {
  width: 100%;
  height: 100%;
  background: var(--color-bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-dim);
  overflow: hidden;
}

.about__image-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.about__image-placeholder svg {
  width: 60%;
  height: 60%;
}

.about__image-border {
  position: absolute;
  inset: 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base);
}

.about__image-wrapper:hover .about__image-border {
  border-color: var(--color-primary);
}

.about__text p {
  color: var(--color-text-muted);
  margin-bottom: 20px;
  font-size: 1.02rem;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
  padding-top: 36px;
  border-top: 1px solid var(--color-border);
}

.about__stat {
  text-align: center;
}

.about__stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary-light);
  display: inline;
}

.about__stat-plus {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-light);
}

.about__stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-dim);
  margin-top: 4px;
}

/* ============================================
   Skills Section
   ============================================ */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.skill-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.skill-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.skill-card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: 20px;
  color: var(--color-primary-light);
}

.skill-card__icon svg {
  width: 100%;
  height: 100%;
}

.skill-card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.skill-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-card__tags span {
  padding: 4px 12px;
  background: var(--color-surface);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.skill-card:hover .skill-card__tags span {
  background: var(--color-primary-glow);
  color: var(--color-primary-light);
}

/* ============================================
   Projects Section
   ============================================ */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

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

.project-card__image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.project-card__placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    hsl(var(--hue, 250) 40% 12%) 0%,
    hsl(var(--hue, 250) 50% 18%) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  color: hsl(var(--hue, 250) 60% 60%);
  transition: transform var(--transition-slow);
}

.project-card__placeholder svg {
  width: 48px;
  height: 48px;
}

.project-card:hover .project-card__placeholder {
  transform: scale(1.05);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.project-card:hover .project-card__overlay {
  opacity: 1;
}

.project-card__content {
  padding: 24px;
}

.project-card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.project-card__description {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

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

.project-card__tags span {
  padding: 3px 10px;
  background: var(--color-surface);
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-text-dim);
}

.project-card__github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.project-card__github:hover {
  color: var(--color-primary-light);
}

/* ============================================
   Experience / Timeline
   ============================================ */
.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-border), transparent);
}

.timeline__item {
  position: relative;
  margin-bottom: 48px;
}

.timeline__item:last-child {
  margin-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: -36px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline__date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-primary-light);
  margin-bottom: 8px;
  display: block;
}

.timeline__title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline__company {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.timeline__description {
  font-size: 0.92rem;
  color: var(--color-text-dim);
  line-height: 1.7;
}

/* ============================================
   Contact Section
   ============================================ */
.contact__subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-top: -40px;
  margin-bottom: 50px;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.form__group {
  margin-bottom: 20px;
}

.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.form__input {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form__input::placeholder {
  color: var(--color-text-dim);
}

.form__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

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

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 8px;
}

.contact__info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  color: var(--color-text-muted);
}

.contact__info-item svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__info-label {
  font-size: 0.82rem;
  color: var(--color-text-dim);
  margin-bottom: 2px;
}

.contact__info-value {
  font-size: 0.95rem;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

a.contact__info-value:hover {
  color: var(--color-primary-light);
}

.contact__socials {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.contact__social {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.contact__social:hover {
  background: var(--color-primary-glow);
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  transform: translateY(-3px);
}

/* ============================================
   Education Section
   ============================================ */
.education-card {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  max-width: 700px;
  margin: 0 auto;
  transition: all var(--transition-base);
}

.education-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.education-card__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  color: var(--color-primary-light);
}

.education-card__icon svg {
  width: 100%;
  height: 100%;
}

.education-card__date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-primary-light);
  display: block;
  margin-bottom: 6px;
}

.education-card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.education-card__school {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.education-card__details {
  font-size: 0.9rem;
  color: var(--color-text-dim);
  line-height: 1.7;
}

@media (max-width: 480px) {
  .education-card {
    flex-direction: column;
    gap: 16px;
  }
}

/* ============================================
   Awards Section
   ============================================ */
.awards__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.award-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition-base);
}

.award-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.award-card__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary-light);
  display: block;
  margin-bottom: 8px;
}

.award-card__title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.award-card__link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.award-card__link:hover {
  color: var(--color-primary-light);
}

/* ============================================
   Certifications Section
   ============================================ */
.certs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.cert-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition-base);
}

.cert-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.cert-card__badge {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.cert-card__badge svg {
  width: 100%;
  height: 100%;
}

.cert-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.cert-card__issuer {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.cert-card__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary-light);
}

/* ============================================
   Community Section
   ============================================ */
.community__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.community-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.community-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.community-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.community-card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  color: var(--color-accent);
}

.community-card__icon svg {
  width: 100%;
  height: 100%;
}

.community-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.community-card__location {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-primary-light);
  margin-bottom: 12px;
}

.community-card__description {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.footer__top {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.footer__top:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  transform: translateY(-2px);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-bg-alt);
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    padding: 40px;
    transition: right var(--transition-base);
    border-left: 1px solid var(--color-border);
  }

  .nav__links.open {
    right: 0;
  }

  .nav__links a {
    font-size: 1.1rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about__image-wrapper {
    max-width: 220px;
    margin: 0 auto;
  }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .about__stat-number {
    font-size: 1.6rem;
  }

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

  .projects__grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__scroll {
    display: none;
  }
}

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

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    text-align: center;
    justify-content: center;
  }
}

/* ============================================
   Theme Toggle
   ============================================ */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-base);
  margin-right: 8px;
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  transform: translateY(-2px);
}

.theme-toggle__icon {
  position: absolute;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.3s ease;
}

/* Dark mode (default): show sun icon, hide moon */
.theme-toggle__icon--sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-toggle__icon--moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

/* Light mode: show moon icon, hide sun */
[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

[data-theme="light"] .theme-toggle__icon--moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Light mode nav scrolled */
[data-theme="light"] .nav--scrolled {
  background: rgba(245, 245, 250, 0.85);
}

/* Light mode project placeholders */
[data-theme="light"] .project-card__placeholder {
  background: linear-gradient(
    135deg,
    hsl(var(--hue, 250) 40% 90%) 0%,
    hsl(var(--hue, 250) 50% 82%) 100%
  );
}

/* Light mode scrollbar */
[data-theme="light"] ::-webkit-scrollbar-track {
  background: var(--color-bg);
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: var(--color-border);
}

[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-light);
}

/* Smooth theme transition on body */
body {
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* ============================================
   Focus Styles (Accessibility)
   ============================================ */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ============================================
   Selection
   ============================================ */
::selection {
  background: var(--color-primary);
  color: #fff;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-light);
}