/* ============================================================
   HOCINE BOUROUIH — PORTFOLIO
   Modern, dark-first, glassmorphism design
   ============================================================ */

/* ----- CSS Variables / Theming ----- */
:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Accent */
  --accent: #6C63FF;
  --accent-light: #8B83FF;
  --accent-glow: rgba(108, 99, 255, 0.35);

  /* Spacing */
  --nav-height: 70px;
  --section-padding: 100px 0;
  --container-width: 1100px;

  /* Transitions */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark theme (default) */
[data-theme="dark"] {
  --bg: #0a0a0f;
  --bg-alt: #111118;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8e8ed;
  --text-secondary: #9898a6;
  --text-muted: #5a5a6e;
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.06);
  --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --glass: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --nav-bg: rgba(10, 10, 15, 0.85);
  --badge-bg: rgba(255, 255, 255, 0.06);
  --badge-text: #d0d0da;
  --timeline-line: rgba(108, 99, 255, 0.2);
  --input-bg: rgba(255, 255, 255, 0.05);
}

/* Light theme */
[data-theme="light"] {
  --bg: #f8f8fc;
  --bg-alt: #ffffff;
  --surface: rgba(0, 0, 0, 0.03);
  --surface-hover: rgba(0, 0, 0, 0.06);
  --border: rgba(0, 0, 0, 0.08);
  --text: #1a1a2e;
  --text-secondary: #555566;
  --text-muted: #8888a0;
  --card-bg: #ffffff;
  --card-border: rgba(0, 0, 0, 0.08);
  --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --glass: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.08);
  --nav-bg: rgba(248, 248, 252, 0.85);
  --badge-bg: rgba(0, 0, 0, 0.05);
  --badge-text: #333344;
  --timeline-line: rgba(108, 99, 255, 0.3);
  --input-bg: rgba(0, 0, 0, 0.04);
}

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

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color var(--transition);
}

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

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

.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
}

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

/* ----- Reveal Animations ----- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* stagger children */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text) !important;
  letter-spacing: -1px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--transition);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: pointer;
  transition: all var(--transition);
}

.lang-toggle:hover {
  border-color: var(--accent);
  box-shadow: 0 0 18px var(--accent-glow);
}

.lang-option {
  min-width: 38px;
  height: 30px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  transition: all var(--transition);
}

.lang-option.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}

/* Theme toggle */
.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition);
}

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

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

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

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.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); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + 2rem) 5% 4rem;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 4rem;
  max-width: var(--container-width);
  width: 100%;
}

.hero-photo-wrapper {
  flex-shrink: 0;
  position: relative;
}

.hero-photo-glow {
  position: absolute;
  inset: -15px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), #8B83FF, var(--accent));
  animation: rotateGlow 6s linear infinite;
  filter: blur(6px);
  opacity: 0.6;
}

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

.hero-photo {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  position: relative;
  z-index: 1;
  border: 4px solid var(--bg);
  background: linear-gradient(135deg, var(--accent), #ff6b6b);
}

.hero-text {
  flex: 1;
}

.hero-greeting {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 0.25rem;
}

.hero-name {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 0.75rem;
}

.hero-typing-wrapper {
  font-size: 1.05rem;
  color: var(--text-secondary);
  min-height: 1.7em;
  margin-bottom: 1.25rem;
}

.typing-cursor {
  animation: blink 1s steps(1) infinite;
  color: var(--accent);
  font-weight: 300;
}

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

.hero-cta-text {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
  max-width: 520px;
  line-height: 1.6;
}

.hero-cta-text strong {
  color: var(--accent-light);
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  color: var(--text);
  border-color: var(--accent);
  transform: translateY(-2px);
}

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

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

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

.hero-buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

/* Socials */
.hero-socials {
  display: flex;
  gap: 1rem;
}

.hero-socials a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.hero-socials a:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--accent-glow);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: floatUp 2s ease-in-out infinite;
}

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

.scroll-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-wheel {
  width: 3px;
  height: 8px;
  background: var(--accent);
  border-radius: 3px;
  animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: var(--section-padding);
}

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

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 3.5rem;
  letter-spacing: -1px;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  align-items: start;
}

.about-photo {
  position: relative;
}

.about-photo img {
  width: 100%;
  border-radius: 20px;
  object-fit: cover;
  aspect-ratio: 3/4;
  border: 2px solid var(--border);
}

.about-photo::after {
  content: '';
  position: absolute;
  inset: 10px -10px -10px 10px;
  border: 2px solid var(--accent);
  border-radius: 20px;
  z-index: -1;
  opacity: 0.4;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.about-text strong {
  color: var(--text);
  font-weight: 600;
}

.about-highlights {
  display: flex;
  gap: 2rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.highlight-item {
  text-align: center;
}

.highlight-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1;
}

.highlight-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  display: block;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 1.5rem;
  transition: all var(--transition);
}

.skill-category:hover {
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-4px);
}

.skill-category-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
}

.skill-category-title svg {
  color: var(--accent-light);
}

.skill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--badge-bg);
  color: var(--badge-text);
  border: 1px solid transparent;
  transition: all var(--transition);
}

.badge img {
  width: 16px;
  height: 16px;
}

.badge:hover {
  border-color: var(--badge-color, var(--accent));
  background: rgba(108, 99, 255, 0.1);
  transform: translateY(-2px);
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.projects-more {
  margin-top: 2.25rem;
  width: 100%;
  display: flex;
  justify-content: center;
}

.btn-projects-more {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.82rem 1.4rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.btn-projects-more:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
  color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px var(--accent-glow);
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 1.75rem;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

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

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  color: var(--accent-light);
}

.project-links a {
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex: 1;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.project-desc strong {
  color: var(--accent-light);
  font-weight: 600;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tags span {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background: var(--badge-bg);
  color: var(--text-muted);
  font-weight: 500;
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--timeline-line);
}

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

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

.timeline-marker {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 3px var(--accent-glow);
  z-index: 1;
}

.timeline-marker.education {
  background: #6bcb77;
  box-shadow: 0 0 0 3px rgba(107, 203, 119, 0.3);
}

.timeline-content {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.5rem;
  transition: all var(--transition);
}

.timeline-content:hover {
  border-color: var(--accent);
  box-shadow: 0 0 25px var(--accent-glow);
}

.timeline-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.timeline-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0.4rem 0 0.25rem;
  color: var(--text);
}

.timeline-company {
  font-weight: 500;
  color: var(--text-secondary);
}

.timeline-type {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.timeline-content ul {
  list-style: none;
  padding: 0;
}

.timeline-content li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  line-height: 1.5;
}

.timeline-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
  max-width: 600px;
  margin: 0 auto;
}


.contact-intro {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

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

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: 14px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text) !important;
  transition: all var(--transition);
}

.contact-item:hover {
  border-color: var(--accent);
  transform: translateX(6px);
  box-shadow: 0 0 20px var(--accent-glow);
}

.contact-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--surface);
  color: var(--accent-light);
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-value {
  display: block;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text);
}

/* Contact form */
.contact-form {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 2rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  transition: all var(--transition);
  resize: vertical;
}

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

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

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 2rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 999;
  box-shadow: 0 4px 15px var(--accent-glow);
}

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

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .hero-photo {
    width: 180px;
    height: 180px;
  }

  .hero-cta-text {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-socials {
    justify-content: center;
  }

  .about-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-photo {
    max-width: 220px;
    margin: 0 auto;
  }

  .about-photo::after {
    display: none;
  }

  .about-highlights {
    justify-content: center;
  }

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

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }

  .nav-actions {
    gap: 0.4rem;
  }

  .lang-option {
    min-width: 34px;
    height: 28px;
    font-size: 0.72rem;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    padding: 2rem 0;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-photo {
    width: 150px;
    height: 150px;
  }

  .hero-name {
    font-size: 2.2rem;
    letter-spacing: -1px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

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

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

  .timeline {
    padding-left: 30px;
  }

  .timeline::before {
    left: 10px;
  }

  .timeline-marker {
    left: -28px;
    width: 12px;
    height: 12px;
  }

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

@media (max-width: 480px) {
  .about-highlights {
    flex-direction: column;
    gap: 1rem;
  }

  .hero-photo {
    width: 130px;
    height: 130px;
  }
}

/* ============================================================
   SELECTION & SCROLLBAR
   ============================================================ */
::selection {
  background: var(--accent);
  color: #fff;
}

::-webkit-scrollbar {
  width: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ============================================================
   LANGUES
   ============================================================ */
.langues-section {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.langues-title {
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.langues-grid {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.langue-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all var(--transition);
  min-width: 280px;
}

.langue-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-3px);
}

.langue-info {
  flex: 1;
}

.langue-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}

.langue-detail {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.langue-cert {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.langue-cert:hover {
  background: var(--accent-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.langue-cert svg {
  width: 14px;
  height: 14px;
}

/* ============================================================
   TOAST
   ============================================================ */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px var(--accent-glow);
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}