/* ============================================================
   SAMET ÇELİK — Personal Portfolio
   Premium Dark Theme Stylesheet
   ============================================================ */

/* ----------------------------------------------------------
   0. CSS Custom Properties
   ---------------------------------------------------------- */
:root {
  /* — Backgrounds — */
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #16161f;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --bg-glass-strong: rgba(255, 255, 255, 0.08);

  /* — Text — */
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #55556a;
  --text-inverse: #0a0a0f;

  /* — Accents & Gradients — */
  --accent-purple: #6c5ce7;
  --accent-teal: #00cec9;
  --accent-pink: #fd79a8;
  --gradient-primary: linear-gradient(135deg, #6c5ce7, #00cec9);
  --gradient-secondary: linear-gradient(135deg, #fd79a8, #6c5ce7);
  --gradient-accent: linear-gradient(135deg, #6c5ce7, #00cec9, #6c5ce7);
  --gradient-glow: linear-gradient(135deg, rgba(108, 92, 231, 0.4), rgba(0, 206, 201, 0.4));

  /* — Borders — */
  --border-color: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-glow: rgba(108, 92, 231, 0.5);

  /* — Shadows — */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.3);
  --shadow-glow-teal: 0 0 30px rgba(0, 206, 201, 0.3);

  /* — Typography — */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.8rem);
  --font-size-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.9rem);
  --font-size-base: clamp(0.9rem, 0.85rem + 0.25vw, 1rem);
  --font-size-md: clamp(1rem, 0.9rem + 0.5vw, 1.15rem);
  --font-size-lg: clamp(1.15rem, 1rem + 0.75vw, 1.4rem);
  --font-size-xl: clamp(1.5rem, 1.2rem + 1.5vw, 2.2rem);
  --font-size-2xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --font-size-3xl: clamp(2.5rem, 2rem + 3vw, 4rem);
  --font-size-hero: clamp(2.8rem, 2rem + 4vw, 5rem);

  /* — 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;
  --space-section: clamp(4rem, 3rem + 5vw, 8rem);

  /* — Layout — */
  --container-max: 1200px;
  --container-narrow: 800px;
  --navbar-height: 72px;
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 9999px;

  /* — Transitions — */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 0.2s var(--ease-smooth);
  --transition-base: 0.3s var(--ease-smooth);
  --transition-slow: 0.5s var(--ease-smooth);
  --transition-slower: 0.8s var(--ease-smooth);

  /* — Z-Index Stack — */
  --z-particles: 0;
  --z-content: 1;
  --z-navbar: 100;
  --z-cursor: 1000;
  --z-loader: 2000;
  --z-modal: 3000;
}

/* ----------------------------------------------------------
   0b. Light Theme Overrides
   ---------------------------------------------------------- */
[data-theme='light'] {
  --bg-primary: #f5f5fa;
  --bg-secondary: #eeeef4;
  --bg-tertiary: #e4e4ec;
  --bg-card: rgba(0, 0, 0, 0.03);
  --bg-card-hover: rgba(0, 0, 0, 0.06);
  --bg-glass: rgba(255, 255, 255, 0.6);
  --bg-glass-strong: rgba(255, 255, 255, 0.8);
  --text-primary: #1a1a2e;
  --text-secondary: #555570;
  --text-muted: #8888a0;
  --text-inverse: #f0f0f5;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);
  --border-glow: rgba(108, 92, 231, 0.35);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.15);
  --shadow-glow-teal: 0 0 30px rgba(0, 206, 201, 0.15);
}

[data-theme='light'] .navbar {
  background: rgba(245, 245, 250, 0.85);
}

[data-theme='light'] .loader {
  background: var(--bg-primary);
}

[data-theme='light'] .cursor-dot,
[data-theme='light'] .cursor-outline {
  border-color: var(--accent-purple);
}

[data-theme='light'] .cursor-dot {
  background: var(--accent-purple);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

/* Restore default cursor on touch devices */
@media (pointer: coarse) {
  body { cursor: auto; }
}

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

ul, ol {
  list-style: none;
}

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

button, input, textarea, select {
  font: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: auto;
}

@media (pointer: coarse) {
  button { cursor: pointer; }
}

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

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-purple), var(--accent-teal));
  border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-teal), var(--accent-purple));
}

/* Firefox */
html {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-purple) var(--bg-primary);
}

/* — Selection — */
::selection {
  background: rgba(108, 92, 231, 0.35);
  color: var(--text-primary);
}

/* ----------------------------------------------------------
   2. Animated Background
   ---------------------------------------------------------- */
.animated-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: var(--bg-primary);
}

.animated-bg::before,
.animated-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
  animation: bgFloat 20s ease-in-out infinite alternate;
}

.animated-bg::before {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.2), transparent 70%);
  top: -10%;
  right: -5%;
}

.animated-bg::after {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 206, 201, 0.15), transparent 70%);
  bottom: -10%;
  left: -5%;
  animation-delay: -10s;
}

.animated-bg__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.2;
  animation: bgFloat 25s ease-in-out infinite alternate;
}

.animated-bg__orb--pink {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(253, 121, 168, 0.2), transparent 70%);
  top: 40%;
  left: 30%;
  animation-delay: -5s;
}

@keyframes bgFloat {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(30px, -30px) scale(1.05); }
  66%  { transform: translate(-20px, 20px) scale(0.95); }
  100% { transform: translate(10px, -10px) scale(1.02); }
}

/* ----------------------------------------------------------
   3. Custom Cursor
   ---------------------------------------------------------- */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--text-primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-bounce),
              height 0.3s var(--ease-bounce),
              background 0.3s var(--ease-smooth);
  mix-blend-mode: difference;
}

.cursor-dot--hover {
  width: 40px;
  height: 40px;
  background: rgba(108, 92, 231, 0.5);
  mix-blend-mode: normal;
}

.cursor-outline {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(240, 240, 245, 0.3);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  transition: width 0.4s var(--ease-smooth),
              height 0.4s var(--ease-smooth),
              border-color 0.3s var(--ease-smooth),
              opacity 0.3s var(--ease-smooth);
}

.cursor-outline--hover {
  width: 60px;
  height: 60px;
  border-color: rgba(108, 92, 231, 0.4);
  opacity: 0.6;
}

/* Hide custom cursor on touch/mobile */
@media (pointer: coarse) {
  .cursor-dot,
  .cursor-outline {
    display: none !important;
  }
}

/* ----------------------------------------------------------
   4. Scroll Progress Bar
   ---------------------------------------------------------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient-primary);
  z-index: calc(var(--z-navbar) + 1);
  transition: none;
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 10px rgba(108, 92, 231, 0.5);
}

/* ----------------------------------------------------------
   5. Page Loader
   ---------------------------------------------------------- */
.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-lg);
  transition: opacity 0.6s var(--ease-smooth), visibility 0.6s;
}

.loader--hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__spinner {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-purple);
  border-right-color: var(--accent-teal);
  animation: loaderSpin 0.8s linear infinite;
}

.loader__text {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  letter-spacing: 3px;
  text-transform: uppercase;
  animation: loaderPulse 1.5s ease-in-out infinite;
}

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

@keyframes loaderPulse {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 1; }
}

/* ----------------------------------------------------------
   6. Navbar
   ---------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: var(--z-navbar);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-xl);
  transition: background var(--transition-base),
              box-shadow var(--transition-base),
              backdrop-filter var(--transition-base);
}

.navbar--scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border-color), var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
}

.navbar__logo {
  font-size: var(--font-size-lg);
  font-weight: 700;
  letter-spacing: -0.5px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: opacity var(--transition-fast);
}

.navbar__logo:hover {
  opacity: 0.8;
}

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

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

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-full);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.navbar__link:hover,
.navbar__link--active {
  color: var(--text-primary);
}

.navbar__link:hover::after,
.navbar__link--active::after {
  width: 60%;
}

/* Theme Toggle */
.navbar__theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
  margin-left: var(--space-sm);
}

.navbar__theme-toggle:hover {
  background: var(--bg-glass-strong);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--border-radius-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.navbar__hamburger:hover {
  background: var(--bg-glass-strong);
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
  transform-origin: center;
}

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

.navbar__hamburger--active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

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

/* Mobile Menu */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: var(--space-2xl);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  z-index: calc(var(--z-navbar) - 1);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.navbar__mobile-menu--open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.navbar__mobile-link {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  padding: var(--space-sm) var(--space-lg);
}

.navbar__mobile-link:hover {
  color: var(--text-primary);
}

/* ----------------------------------------------------------
   7. Hero Section
   ---------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--navbar-height) + var(--space-2xl)) var(--space-xl) var(--space-3xl);
  overflow: hidden;
}

.hero__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  max-width: var(--container-max);
  width: 100%;
  position: relative;
  z-index: var(--z-content);
}

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

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  width: fit-content;
  animation: badgeFloat 3s ease-in-out infinite;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00d26a;
  box-shadow: 0 0 8px rgba(0, 210, 106, 0.5);
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.8); }
}

@keyframes badgeFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-5px); }
}

.hero__greeting {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  font-weight: 400;
}

.hero__name {
  font-size: var(--font-size-hero);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__tagline {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.hero__typed-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
}

.hero__typed-text {
  color: var(--accent-teal);
  font-weight: 500;
}

.hero__typed-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--accent-teal);
  animation: cursorBlink 1s step-end infinite;
  vertical-align: middle;
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}

.hero__description {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

/* Hero Visual / Image Side */
.hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero__image-wrapper {
  position: relative;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: var(--gradient-primary);
  padding: 4px;
}

.hero__image-wrapper::before {
  content: '';
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 1px dashed var(--border-color);
  animation: rotateSlow 30s linear infinite;
}

.hero__image-wrapper::after {
  content: '';
  position: absolute;
  inset: -40px;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.03);
  animation: rotateSlow 45s linear infinite reverse;
}

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

.hero__image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-secondary);
}

/* Floating Badges around hero visual */
.hero__float-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-glass-strong);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-xs);
  color: var(--text-primary);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  animation: floatBadge 4s ease-in-out infinite;
}

.hero__float-badge:nth-child(2) { top: 10%; right: -10%; animation-delay: -1s; }
.hero__float-badge:nth-child(3) { bottom: 15%; left: -15%; animation-delay: -2s; }
.hero__float-badge:nth-child(4) { top: 50%; right: -20%; animation-delay: -0.5s; }

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

.hero__float-icon {
  font-size: 1.2rem;
}

/* ----------------------------------------------------------
   8. Section Headers
   ---------------------------------------------------------- */
.section {
  padding: var(--space-section) var(--space-xl);
  position: relative;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
}

.section__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  color: var(--accent-teal);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.section__title {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: var(--space-md);
}

.section__title--gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section__description {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

/* ----------------------------------------------------------
   9. Cards (Glass, Tilt)
   ---------------------------------------------------------- */
.card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--gradient-glow);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

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

.card:hover::before {
  opacity: 0.05;
}

/* Tilt Card - JS will handle the perspective transforms */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 1000px;
  will-change: transform;
}

.tilt-card__inner {
  transition: transform 0.1s linear;
}

/* ----------------------------------------------------------
   10. Buttons
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.35);
}

.btn--primary:hover {
  box-shadow: 0 8px 30px rgba(108, 92, 231, 0.5);
  transform: translateY(-2px);
}

.btn--primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn--primary:hover::after {
  opacity: 1;
}

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

.btn--outline:hover {
  border-color: var(--accent-purple);
  background: rgba(108, 92, 231, 0.08);
  transform: translateY(-2px);
}

.btn--icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: var(--border-radius-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.btn--icon:hover {
  background: var(--bg-glass-strong);
  color: var(--text-primary);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

/* Magnetic effect - JS handles this */
.magnetic {
  will-change: transform;
  transition: transform 0.3s var(--ease-bounce);
}

/* ----------------------------------------------------------
   11. Grid Layouts
   ---------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}

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

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

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

/* ----------------------------------------------------------
   12. About Section
   ---------------------------------------------------------- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-3xl);
  align-items: start;
}

.about__photo-area {
  position: relative;
}

.about__photo-wrapper {
  position: relative;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.about__photo-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-primary) 0%, transparent 50%);
  pointer-events: none;
}

.about__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.about__info-item {
  padding: var(--space-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
}

.about__info-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-xs);
}

.about__info-value {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: var(--space-2xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-purple), var(--accent-teal), transparent);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-xl);
}

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

.timeline__dot {
  position: absolute;
  left: calc(-1 * var(--space-2xl) + 4px);
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--accent-purple);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(108, 92, 231, 0.5);
  z-index: 1;
}

.timeline__dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(108, 92, 231, 0.3);
  animation: dotPulse 2s ease-in-out infinite;
}

.timeline__date {
  font-size: var(--font-size-xs);
  color: var(--accent-teal);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-xs);
}

.timeline__title {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.timeline__subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ----------------------------------------------------------
   13. Skills Section
   ---------------------------------------------------------- */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

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

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

.skill-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: 1.4rem;
  margin-bottom: var(--space-lg);
}

.skill-card__name {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.skill-card__bar-wrapper {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius-full);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.skill-card__bar {
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-full);
  transition: width 1.2s var(--ease-smooth);
  box-shadow: 0 0 8px rgba(108, 92, 231, 0.4);
}

.skill-card__bar--animated {
  /* Width set by data-progress attribute via JS */
}

.skill-card__level {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-align: right;
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.tool-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
  text-align: center;
}

.tool-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-3px);
}

.tool-item__icon {
  font-size: 1.6rem;
}

.tool-item__name {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  font-weight: 500;
}

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

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

.project-card__image-area {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--bg-tertiary);
  overflow: hidden;
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card__image {
  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: var(--space-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.project-card__overlay-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  transform: translateY(10px);
}

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

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

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

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

.project-card__tag {
  padding: 3px 10px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  color: var(--accent-teal);
  font-weight: 500;
}

.project-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.project-card__description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----------------------------------------------------------
   15. Contact Section
   ---------------------------------------------------------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-3xl);
  align-items: start;
}

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

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

.contact__info-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateX(4px);
}

.contact__info-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: 1.2rem;
  color: var(--accent-teal);
  flex-shrink: 0;
}

.contact__info-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact__info-value {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-top: 2px;
}

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

.form-group {
  position: relative;
}

.form-group__input,
.form-group__textarea {
  width: 100%;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

.form-group__input:focus,
.form-group__textarea:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15), var(--shadow-glow);
  background: var(--bg-card-hover);
}

.form-group__input::placeholder,
.form-group__textarea::placeholder {
  color: var(--text-muted);
}

.form-group__textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group__label {
  position: absolute;
  top: -8px;
  left: 16px;
  padding: 0 6px;
  background: var(--bg-primary);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  pointer-events: none;
}

/* Form row for side-by-side inputs */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

/* Success/Error Messages */
.form-message {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  animation: slideUp 0.4s var(--ease-smooth);
  display: none;
}

.form-message--success {
  display: block;
  background: rgba(0, 210, 106, 0.1);
  border: 1px solid rgba(0, 210, 106, 0.3);
  color: #00d26a;
}

.form-message--error {
  display: block;
  background: rgba(255, 71, 87, 0.1);
  border: 1px solid rgba(255, 71, 87, 0.3);
  color: #ff4757;
}

/* ----------------------------------------------------------
   16. Certificates Section
   ---------------------------------------------------------- */
.cert-card {
  perspective: 1000px;
  height: 280px;
}

.cert-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s var(--ease-smooth);
  transform-style: preserve-3d;
}

.cert-card:hover .cert-card__inner {
  transform: rotateY(180deg);
}

.cert-card__front,
.cert-card__back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.cert-card__back {
  transform: rotateY(180deg);
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
}

.cert-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.cert-card__title {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.cert-card__issuer {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.cert-card__date {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--space-sm);
}

.cert-card__description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----------------------------------------------------------
   17. Testimonials Section
   ---------------------------------------------------------- */
.testimonials__wrapper {
  position: relative;
  max-width: var(--container-narrow);
  margin: 0 auto;
  overflow: hidden;
}

.testimonials__track {
  display: flex;
  transition: transform 0.6s var(--ease-smooth);
}

.testimonial-card {
  min-width: 100%;
  padding: var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  text-align: center;
}

.testimonial-card__quote {
  font-size: var(--font-size-lg);
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
  position: relative;
}

.testimonial-card__quote::before {
  content: '"';
  font-size: 4rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  display: block;
  margin-bottom: var(--space-sm);
}

.testimonial-card__author {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.testimonial-card__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-color);
  margin-bottom: var(--space-sm);
  background: var(--bg-tertiary);
}

.testimonial-card__name {
  font-size: var(--font-size-base);
  font-weight: 700;
}

.testimonial-card__role {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Dots */
.testimonials__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.testimonials__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg-glass-strong);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  cursor: pointer;
}

.testimonials__dot--active {
  background: var(--accent-purple);
  border-color: var(--accent-purple);
  box-shadow: 0 0 10px rgba(108, 92, 231, 0.5);
  transform: scale(1.2);
}

/* ----------------------------------------------------------
   18. Footer
   ---------------------------------------------------------- */
.footer {
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer__socials {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-base);
}

.footer__social-link:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

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

.footer__copyright-name {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 600;
}

/* ----------------------------------------------------------
   19. Animations (triggered by .visible)
   ---------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transition: opacity 0.8s var(--ease-smooth);
}
.fade-in.visible {
  opacity: 1;
}

.slide-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}
.slide-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-left {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}
.slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-right {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}
.slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}
.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered delay utilities */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ----------------------------------------------------------
   22. Particle Canvas
   ---------------------------------------------------------- */
.particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-particles);
  pointer-events: none;
}

/* ----------------------------------------------------------
   23. Back to Top Button
   ---------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: calc(var(--z-navbar) - 1);
  border: none;
}

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

.back-to-top:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 30px rgba(108, 92, 231, 0.5);
}

/* ----------------------------------------------------------
   24. Stats / Counter Section
   ---------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  max-width: var(--container-max);
  margin: 0 auto;
}

.stat-item {
  text-align: center;
  padding: var(--space-xl);
}

.stat-item__number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.stat-item__label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--space-sm);
}

/* ----------------------------------------------------------
   25. Glowing Separator Lines
   ---------------------------------------------------------- */
.separator {
  width: 100%;
  height: 1px;
  border: none;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-purple),
    var(--accent-teal),
    transparent
  );
  opacity: 0.3;
  margin: 0;
}

.separator--short {
  max-width: 200px;
  margin: var(--space-xl) auto;
  height: 2px;
  opacity: 0.5;
  border-radius: var(--border-radius-full);
}

/* ----------------------------------------------------------
   21. Responsive Breakpoints
   ---------------------------------------------------------- */

/* 1200px */
@media (max-width: 1200px) {
  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .hero__image-wrapper {
    width: 320px;
    height: 320px;
  }
}

/* 968px */
@media (max-width: 968px) {
  .navbar__links {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }

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

  .hero__content {
    align-items: center;
  }

  .hero__description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__visual {
    order: -1;
  }

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

  .hero__float-badge {
    display: none;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 768px */
@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

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

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

  .section {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .cert-card {
    height: 240px;
  }
}

/* 640px */
@media (max-width: 640px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .navbar {
    padding: 0 var(--space-md);
  }

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

/* 480px */
@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .hero__actions .btn {
    width: 100%;
  }

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

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

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

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }

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

  .cert-card {
    height: 220px;
  }

  .testimonial-card {
    padding: var(--space-lg);
  }

  .testimonial-card__quote {
    font-size: var(--font-size-base);
  }
}

/* ----------------------------------------------------------
   Utility Classes
   ---------------------------------------------------------- */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient--secondary {
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

.mx-auto { margin-left: auto; margin-right: auto; }

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

/* Lazy load images placeholder */
.lazy-image {
  opacity: 0;
  transition: opacity 0.6s var(--ease-smooth);
}

.lazy-image--loaded {
  opacity: 1;
}

/* Map Container */
.map-container iframe {
  transition: filter 0.3s ease;
}

.map-container:hover iframe {
  filter: grayscale(0) contrast(1) !important;
}

/* 5th floating badge position */
.hero__float-badge:nth-child(5) { bottom: 40%; left: -18%; animation-delay: -3s; }

/* Responsive contact grid */
@media (max-width: 768px) {
  .contact__grid {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }
  .map-container iframe {
    height: 300px !important;
  }
  .journey-item {
    flex-direction: column !important;
    gap: 1rem !important;
  }
}

/* ----------------------------------------------------------
   Skill Bars
   ---------------------------------------------------------- */
.skill-bar-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.skill-bar-item {
  width: 100%;
}

.skill-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.skill-bar-header span:last-child {
  color: var(--accent-teal);
  font-weight: 700;
}

.skill-bar {
  width: 100%;
  height: 10px;
  background: var(--bg-glass);
  border-radius: var(--border-radius-full);
  overflow: hidden;
  border: 1px solid var(--border-color);
  position: relative;
}

.skill-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-full);
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.skill-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  animation: skillBarShine 2s ease-in-out infinite;
}

@keyframes skillBarShine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.skill-bar-item:nth-child(2) .skill-bar-fill {
  background: linear-gradient(135deg, #00cec9, #55efc4);
}

.skill-bar-item:nth-child(3) .skill-bar-fill {
  background: linear-gradient(135deg, #fd79a8, #e84393);
}

.skill-bar-item:nth-child(4) .skill-bar-fill {
  background: linear-gradient(135deg, #0984e3, #74b9ff);
}

.skill-bar-item:nth-child(5) .skill-bar-fill {
  background: var(--gradient-secondary);
}

.skill-bar-item:nth-child(6) .skill-bar-fill {
  background: linear-gradient(135deg, #00cec9, #6c5ce7);
}

.skill-bar-item:nth-child(7) .skill-bar-fill {
  background: linear-gradient(135deg, #e17055, #d63031);
}

/* Skill cards from skills page */
.skill-card {
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.skill-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.skill-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.skill-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}