/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Colors — Charcoal & Gray palette */
  --color-white: #ffffff;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f6f7;
  --color-surface: #ffffff;
  --color-text: #263238;
  --color-text-secondary: #546e7a;
  --color-text-muted: #9E9E9E;
  --color-accent: #263238;
  --color-accent-hover: #37474f;
  --color-accent-light: rgba(38, 50, 56, 0.06);
  --color-accent-glow: rgba(38, 50, 56, 0.12);
  --color-teal: #546e7a;
  --color-teal-light: rgba(207, 216, 220, 0.3);
  --color-border: #CFD8DC;
  --color-border-hover: #9E9E9E;
  --color-shadow: rgba(38, 50, 56, 0.04);
  --color-shadow-md: rgba(38, 50, 56, 0.08);
  --color-shadow-lg: rgba(38, 50, 56, 0.12);
  --color-overlay: rgba(38, 50, 56, 0.65);

  /* Dark mode colors */
  --dark-bg: #1a1a1a;
  --dark-bg-alt: #242424;
  --dark-surface: #2a2a2a;
  --dark-text: #eceff1;
  --dark-text-secondary: #b0bec5;
  --dark-text-muted: #78909c;
  --dark-border: rgba(207, 216, 220, 0.12);
  --dark-border-hover: rgba(207, 216, 220, 0.25);
  --dark-shadow: rgba(0, 0, 0, 0.35);
  --dark-shadow-md: rgba(0, 0, 0, 0.45);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Poppins', 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Sizes */
  --header-height: 72px;
  --container-max: 1200px;
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   DARK MODE
   ============================================ */
[data-theme="dark"] {
  --color-bg: var(--dark-bg);
  --color-bg-alt: var(--dark-bg-alt);
  --color-surface: var(--dark-surface);
  --color-text: var(--dark-text);
  --color-text-secondary: var(--dark-text-secondary);
  --color-text-muted: var(--dark-text-muted);
  --color-border: var(--dark-border);
  --color-border-hover: var(--dark-border-hover);
  --color-shadow: var(--dark-shadow);
  --color-shadow-md: var(--dark-shadow-md);
  --color-shadow-lg: var(--dark-shadow-md);
  --color-accent: #eceff1;
  --color-accent-hover: #cfd8dc;
  --color-accent-light: rgba(207, 216, 220, 0.1);
  --color-accent-glow: rgba(207, 216, 220, 0.15);
  --color-teal-light: rgba(207, 216, 220, 0.1);
  --color-overlay: rgba(26, 26, 26, 0.85);
}

/* ============================================
   RESET & BASE
   ============================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

ul, ol {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

[data-theme="dark"] .header {
  background: rgba(26, 26, 26, 0.9);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 12px var(--color-shadow);
}

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

.header__logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: color var(--transition-fast);
}

.header__logo span {
  color: var(--color-accent);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.header__nav-link {
  position: relative;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.header__nav-link:hover,
.header__nav-link.active {
  color: var(--color-accent);
  background: var(--color-accent-light);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 20px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: transform var(--transition-base);
}

.header__nav-link:hover::after,
.header__nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

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

/* Theme Toggle */
.theme-toggle {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  transition: all var(--transition-smooth);
}

.theme-toggle .icon-moon {
  display: none;
}

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

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.mobile-toggle:hover {
  background: var(--color-accent-light);
}

.hamburger {
  width: 22px;
  height: 16px;
  position: relative;
}

.hamburger span {
  display: block;
  position: absolute;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 7px; width: 70%; }
.hamburger span:nth-child(3) { top: 14px; width: 85%; }

.mobile-toggle.active .hamburger span:nth-child(1) {
  top: 7px;
  transform: rotate(45deg);
}

.mobile-toggle.active .hamburger span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.mobile-toggle.active .hamburger span:nth-child(3) {
  top: 7px;
  width: 100%;
  transform: rotate(-45deg);
}

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

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

.hero__shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.hero__shape--1 {
  width: 400px;
  height: 400px;
  background: var(--color-accent-glow);
  top: 10%;
  right: -5%;
  animation: float 8s ease-in-out infinite;
}

.hero__shape--2 {
  width: 300px;
  height: 300px;
  background: var(--color-teal-light);
  bottom: 15%;
  left: -3%;
  animation: float 10s ease-in-out infinite reverse;
}

.hero__shape--3 {
  width: 200px;
  height: 200px;
  background: rgba(207, 216, 220, 0.25);
  top: 50%;
  left: 40%;
  animation: float 12s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(15px, -20px); }
  66% { transform: translate(-10px, 15px); }
}

.hero__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__image-wrapper {
  position: relative;
}

.hero__image-ring {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  padding: 4px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  position: relative;
  animation: pulse-ring 4s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 0 0 var(--color-accent-glow); }
  50% { box-shadow: 0 0 0 12px transparent; }
}

.hero__image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-surface);
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.hero__image-wrapper:hover .hero__image img {
  transform: scale(1.05);
}

.hero__image-badge {
  position: absolute;
  bottom: 20px;
  right: 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  box-shadow: 0 4px 16px var(--color-shadow-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  animation: badge-pop 0.6s var(--transition-spring) 1s both;
}

@keyframes badge-pop {
  from { opacity: 0; transform: scale(0.8) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.hero__image-badge .dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__content {
  max-width: 560px;
}

.hero__greeting {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 600;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius-full);
  margin-bottom: var(--space-lg);
  border: 1px solid #CFD8DC;
}

.hero__greeting .wave {
  display: inline-block;
  animation: wave 2.5s ease-in-out infinite;
  transform-origin: 70% 70%;
}

@keyframes wave {
  0%, 60%, 100% { transform: rotate(0deg); }
  10%, 30% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
  40% { transform: rotate(-4deg); }
  50% { transform: rotate(10deg); }
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

.hero__name-accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.hero__buttons {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 1.75rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(38, 50, 56, 0.25);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 6px 20px rgba(38, 50, 56, 0.3);
  transform: translateY(-2px);
}

.btn--primary:active {
  transform: translateY(0);
}

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

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

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

/* ============================================
   SECTION BASE
   ============================================ */
.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.section__label::before,
.section__label::after {
  content: '';
  width: 24px;
  height: 1.5px;
  background: var(--color-accent);
  border-radius: 2px;
  opacity: 0.4;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.section__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: var(--space-md) auto 0;
  line-height: 1.7;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

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

.about__text {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.85;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.about__stat {
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
}

.about__stat:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px var(--color-shadow);
  transform: translateY(-2px);
}

.about__stat-number {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.about__stat-label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
  font-weight: 500;
}

.about__visual {
  position: relative;
}

.about__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  box-shadow: 0 4px 24px var(--color-shadow);
  position: relative;
  overflow: hidden;
}

.about__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-teal));
}

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

.about__highlight {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--border-radius-sm);
  transition: background var(--transition-fast);
}

.about__highlight:hover {
  background: var(--color-accent-light);
}

.about__highlight-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: var(--border-radius-sm);
  font-size: 1.2rem;
}

.about__highlight-text h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 2px;
}

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

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills__category {
  margin-bottom: var(--space-3xl);
}

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

.skills__category-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-xl);
  text-align: center;
  color: var(--color-text);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: 800px;
  margin: 0 auto;
}

.skills__grid--secondary {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  max-width: 100%;
}

.skill-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent-light), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.skill-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 32px var(--color-shadow-md);
  transform: translateY(-4px);
}

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

.skill-card__icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: var(--border-radius-md);
  font-size: 1.5rem;
  position: relative;
  z-index: 1;
  transition: all var(--transition-base);
}

.skill-card:hover .skill-card__icon {
  background: var(--color-accent);
  color: var(--color-white);
  transform: scale(1.05);
}

.skill-card__info {
  position: relative;
  z-index: 1;
  flex: 1;
}

.skill-card__name {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 2px;
}

.skill-card__level {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.skill-card__bar {
  width: 100%;
  height: 4px;
  background: var(--color-bg-alt);
  border-radius: 4px;
  margin-top: var(--space-sm);
  overflow: hidden;
}

.skill-card__bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-teal));
  border-radius: 4px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-card--small {
  padding: var(--space-md) var(--space-lg);
}

.skill-card--small .skill-card__icon {
  width: 42px;
  height: 42px;
  min-width: 42px;
  font-size: 1.1rem;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}

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

.project-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: 0 12px 40px var(--color-shadow-md);
  transform: translateY(-6px);
}

.project-card__image {
  position: relative;
  padding-top: 58%;
  overflow: hidden;
}

.project-card__image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.project-card:hover .project-card__image img {
  transform: scale(1.06);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.project-card__overlay-btn {
  padding: 0.7rem 1.5rem;
  background: var(--color-white);
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--border-radius-sm);
  transform: translateY(10px);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.project-card:hover .project-card__overlay-btn {
  transform: translateY(0);
}

.project-card__overlay-btn:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.project-card__content {
  padding: var(--space-lg) var(--space-xl);
}

.project-card__tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-sm);
}

.project-card__tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 3px 10px;
  border-radius: var(--border-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

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

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact__info-text {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact__detail {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
}

.contact__detail:hover {
  border-color: var(--color-accent);
  transform: translateX(4px);
}

.contact__detail-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: var(--border-radius-sm);
}

.contact__detail-info h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact__detail-info p,
.contact__detail-info a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.contact__detail-info a:hover {
  color: var(--color-accent);
}

/* Contact Form */
.contact__form-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  box-shadow: 0 4px 24px var(--color-shadow);
}

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

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

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  padding: 0.85rem var(--space-md);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  color: var(--color-text);
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.btn--submit {
  width: 100%;
  justify-content: center;
  padding: 1rem;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-3xl) 0 var(--space-xl);
}

[data-theme="dark"] .footer {
  background: #111111;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
}

.footer__logo span {
  color: #CFD8DC;
}

.footer__socials {
  display: flex;
  gap: var(--space-md);
}

.footer__social {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-base);
}

.footer__social:hover {
  background: #CFD8DC;
  border-color: #CFD8DC;
  color: #263238;
  transform: translateY(-3px);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__divider {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.footer__copyright {
  font-size: 0.85rem;
  text-align: center;
}

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

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   SCROLL TO TOP
   ============================================ */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 4px 14px rgba(38, 50, 56, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: 100;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-accent-hover);
  transform: translateY(-3px);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero__inner {
    gap: var(--space-2xl);
  }

  .hero__image-ring {
    width: 260px;
    height: 260px;
  }

  .about__grid {
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }

  .header__nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
    z-index: 999;
  }

  .header__nav.open {
    transform: translateX(0);
  }

  .header__nav-link {
    font-size: 1.1rem;
    padding: var(--space-md) var(--space-xl);
  }

  .mobile-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + var(--space-3xl));
    padding-bottom: var(--space-3xl);
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    justify-items: center;
    text-align: center;
  }

  .hero__image-ring {
    width: 240px;
    height: 240px;
  }

  .hero__content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero__buttons {
    justify-content: center;
  }

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

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

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

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

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero__image-ring {
    width: 200px;
    height: 200px;
  }

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

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

  .footer__socials {
    flex-wrap: wrap;
    justify-content: center;
  }
}