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

:root {
    /* GitHub Dark Theme */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #e6edf3;
    --text-secondary: #7d8590;
    --text-accent: #58a6ff;
    --border-color: #30363d;
    --accent-color: #238636;
    --accent-hover: #2ea043;
    --danger-color: #da3633;
    --warning-color: #fb8500;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 8px;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Monaco, Consolas, monospace;
}

[data-theme="light"] {
    /* GitHub Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8fa;
    --bg-tertiary: #ffffff;
    --text-primary: #24292f;
    --text-secondary: #656d76;
    --text-accent: #0969da;
    --border-color: #d0d7de;
    --accent-color: #1f883d;
    --accent-hover: #1a7f37;
    --danger-color: #cf222e;
    --warning-color: #fb8500;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: var(--transition);
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

/* ===== ACCESSIBILITY ===== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 10000;
}

.skip-link:focus {
    top: 6px;
}

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

/* ===== UTILITIES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(22, 27, 34, 0.95);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    margin: 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--text-accent);
    outline: none;
}

.nav-link.active {
    color: var(--text-accent);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--text-accent);
    border-radius: 2px;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover,
.theme-toggle:focus {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    outline: 2px solid var(--text-accent);
    outline-offset: 2px;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
    gap: 3px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    color: var(--text-accent);
    font-family: var(--font-mono);
}

.hero-text h2 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
    max-width: 500px;
}

.hero-quote {
    background-color: var(--bg-tertiary);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
    margin-bottom: 2rem;
    text-align: center;
    overflow: hidden;
    min-height: fit-content;
    display: flex;
    align-items: center;
    justify-content: center;
}

.animated-quote {
    max-width: 100%;
    height: auto;
    max-height: 45px;
    border-radius: 4px;
    background-color: transparent;
    display: block;
    margin: 0 auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    min-height: 44px;
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: 2px solid var(--text-accent);
    outline-offset: 2px;
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--text-accent);
}

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

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

.hero-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.profile-img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    border: 4px solid var(--accent-color);
    object-fit: cover;
    transition: var(--transition);
}

.profile-img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 32px rgba(88, 166, 255, 0.3);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    background-color: var(--accent-color, #238636); /* vert GitHub */
    border-radius: 50%;
    margin-right: 0.5em;
    vertical-align: middle;
    box-shadow: 0 0 0 0 rgba(35,134,54,0.7);
    animation: pulse-dot 1.2s infinite;
}

@keyframes pulse-dot {
    0% {
        box-shadow: 0 0 0 0 rgba(35,134,54,0.7);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(35,134,54,0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(35,134,54,0);
    }
}

/* ===== SECTIONS GÉNÉRALES ===== */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== SKILLS SECTION ===== */
.skills {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #1a1f2e 100%);
    position: relative;
    overflow: hidden;
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(88, 166, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(35, 134, 54, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.skills-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
    margin-bottom: 4rem;
}

.skills-radar {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-tertiary);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

/*.skills {
    background: var(--bg-secondary);
    padding: 2.5rem 0;
    position: relative;
}

.skills-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.skills-radar {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    box-shadow: none;
}*/

#skillsChart {
    max-width: 100%;
    height: auto;
}

.skills-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-category {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}
/*
.skill-category {
    background: transparent;
    padding: 0.5rem 0;
    border: none;
    box-shadow: none;
}

.skill-category h3 {
    color: var(--text-accent);
    font-size: 1rem;
    font-family: var(--font-mono);
    margin-bottom: 0.7rem;
    letter-spacing: 0.02em;
}
*/
.skill-category:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(88, 166, 255, 0.1);
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-accent);
    font-size: 1.1rem;
}

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

.skill-items {
    gap: 0.4rem;
}

.skill-tag {
    background: var(--bg-tertiary);
    border-radius: 8px;
    font-size: 0.82rem;
    padding: 0.28rem 0.7rem;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-mono);
}

@media (max-width: 900px) {
    .skills-overview {
        grid-template-columns: 1fr;
    }
}

.skill-tag {
    padding: 0.4rem 0.8rem;
    border-radius: 16px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid transparent;
    transition: var(--transition);
    position: relative;
    font-family: var(--font-mono);
}

.skill-tag.level-expert {
    background: linear-gradient(135deg, #238636, #2ea043);
    color: white;
    border-color: #238636;
}

.skill-tag.level-advanced {
    background: linear-gradient(135deg, #58a6ff, #0969da);
    color: white;
    border-color: #58a6ff;
}

.skill-tag.level-intermediate {
    background: linear-gradient(135deg, #fb8500, #ffb347);
    color: white;
    border-color: #fb8500;
}

.skill-tag:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.timeline-milestones {
  display: flex;
  flex-direction: column;
  gap: 1.2em;
  margin-top: 2em;
}

.timeline-row {
  display: flex;
  justify-content: center;
  gap: 2em; /* Réduit l’écart entre milestones */
  flex-wrap: wrap;
}

.milestone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3em;
  min-width: 70px;
}
.milestone-label {
  font-size: 0.85em;
  color: var(--text-secondary);
  text-align: center;
}
.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-bottom: 0.3em;
  background: var(--accent-color, #238636);
  border: 2px solid var(--accent-color, #238636);
}
.milestone.completed .timeline-dot {
  background: var(--accent-color, #238636);
}
.milestone.current .timeline-dot {
  background: #58a6ff;
  border-color: #58a6ff;
}
.milestone.upcoming .timeline-dot {
  background: transparent;
  border-color: var(--border-color, #30363d);
}
.milestone.upcoming .milestone-label {
  color: var(--border-color, #30363d);
}

/* Achievements */
.achievements {
    background: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    margin-bottom: 3rem;
}

.achievements h3 {
    color: var(--text-accent);
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 1.5rem;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.achievement-card {
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: 12px;
    border: 2px solid;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.achievement-card:hover::before {
    left: 100%;
}

.achievement-card:hover {
    transform: translateY(-4px);
}

.achievement-card.gold {
    border-color: #ffd700;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.2);
}

.achievement-card.silver {
    border-color: #c0c0c0;
    box-shadow: 0 4px 15px rgba(192, 192, 192, 0.2);
}

.achievement-card.bronze {
    border-color: #cd7f32;
    box-shadow: 0 4px 15px rgba(205, 127, 50, 0.2);
}

.achievement-card.special {
    border-color: var(--accent-color);
    box-shadow: 0 4px 15px rgba(35, 134, 54, 0.2);
}

.achievement-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.achievement-card.gold .achievement-icon {
    color: #ffd700;
}

.achievement-card.silver .achievement-icon {
    color: #c0c0c0;
}

.achievement-card.bronze .achievement-icon {
    color: #cd7f32;
}

.achievement-card.special .achievement-icon {
    color: var(--accent-color);
}

.achievement-card h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.achievement-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Progress Bar */
.milestone-progress {
    background: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.milestone-progress h3 {
    color: var(--text-accent);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.progress-container {
    max-width: 600px;
    margin: 0 auto;
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 10px;
    background: var(--bg-primary);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), #2ea043, #58a6ff);
    border-radius: 6px;
    transition: width 1s ease-in-out;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

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

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    font-family: var(--font-mono);
}

.level-indicator {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.current-level {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 1.1rem;
    font-family: var(--font-mono);
}

.next-level {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== PROJECTS SECTION ===== */
.projects {
    padding: 3rem 0;
    background-color: var(--bg-primary);
}

/* ===== PROGRESSION TIMELINE ===== */
.progression-timeline {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 3rem;
    border: 1px solid var(--border-color);
}

.progression-timeline h3 {
    color: var(--text-accent);
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
    font-family: var(--font-mono);
}

.timeline-wrapper {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-track {
    height: 4px;
    background-color: var(--border-color);
    border-radius: 2px;
    position: relative;
    margin: 2rem 0;
}

.timeline-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), #58a6ff);
    border-radius: 2px;
    position: relative;
    transition: width 2s ease-in-out;
}

.timeline-progress::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background-color: #58a6ff;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.timeline-milestones {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.milestone {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 0.5rem;
    border-radius: 8px;
}

.milestone:hover {
    background-color: var(--bg-primary);
}

.milestone-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background-color: var(--bg-primary);
    transition: var(--transition);
}

.milestone.completed .milestone-dot {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 8px rgba(35, 134, 54, 0.4);
}

.milestone.current .milestone-dot {
    background-color: #58a6ff;
    border-color: #58a6ff;
    box-shadow: 0 0 8px rgba(88, 166, 255, 0.4);
    animation: pulse 2s infinite;
}

.milestone-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    text-align: center;
    font-weight: 500;
}

.milestone.completed .milestone-label {
    color: var(--accent-color);
}

.milestone.current .milestone-label {
    color: #58a6ff;
    font-weight: 600;
}

.progression-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat {
    text-align: center;
    background-color: var(--bg-primary);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-accent);
    font-family: var(--font-mono);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* ===== PROJECTS GRID ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

/* ===== PROJECT CARDS ===== */
.project-card {
    background-color: var(--bg-tertiary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    overflow: hidden;
    position: relative;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: var(--text-accent);
}

.project-card.in-progress {
    border-color: #58a6ff;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(88, 166, 255, 0.05) 100%);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1rem 0.5rem;
}

.project-category {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Category Colors */
.core-project .project-category {
    background-color: rgba(35, 134, 54, 0.2);
    color: var(--accent-color);
}

.system-project .project-category {
    background-color: rgba(251, 133, 0, 0.2);
    color: #fb8500;
}

.algo-project .project-category {
    background-color: rgba(218, 54, 51, 0.2);
    color: #da3633;
}

.unix-project .project-category {
    background-color: rgba(88, 166, 255, 0.2);
    color: #58a6ff;
}

.graphics-project .project-category {
    background-color: rgba(139, 69, 19, 0.2);
    color: #8b4513;
}

.concurrency-project .project-category {
    background-color: rgba(128, 0, 128, 0.2);
    color: #800080;
}

.shell-project .project-category {
    background-color: rgba(0, 128, 0, 0.2);
    color: #008000;
}

.network-project .project-category {
    background-color: rgba(0, 191, 255, 0.2);
    color: #00bfff;
}

.cpp-project .project-category {
    background-color: rgba(255, 105, 180, 0.2);
    color: #ff69b4;
}

.devops-project .project-category {
    background-color: rgba(255, 165, 0, 0.2);
    color: #ffa500;
}

.project-status {
    font-size: 0.8rem;
    font-weight: 500;
    font-family: var(--font-mono);
}

.project-status.completed {
    color: var(--accent-color);
}

.project-status.current {
    color: #58a6ff;
    animation: pulse 2s infinite;
}

.project-content {
    padding: 0 1rem 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-content h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 600;
}

.project-content p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    flex: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-weight: 500;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Tech tag specific colors */
.tech-tag.c { border-color: #00599c; color: #00599c; }
.tech-tag.cpp { border-color: #f34b7d; color: #f34b7d; }
.tech-tag.docker { border-color: #0db7ed; color: #0db7ed; }
.tech-tag.linux { border-color: #fcc624; color: #fcc624; }
.tech-tag.nginx { border-color: #009639; color: #009639; }
.tech-tag.graphics { border-color: #ff6b6b; color: #ff6b6b; }

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.project-score {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    border: 1px solid;
}

.project-score.excellent {
    background-color: rgba(35, 134, 54, 0.2);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.project-score.outstanding {
    background-color: rgba(255, 215, 0, 0.2);
    border-color: #ffd700;
    color: #ffd700;
}

.project-score.pending {
    background-color: rgba(88, 166, 255, 0.2);
    border-color: #58a6ff;
    color: #58a6ff;
}

.project-links {
    display: flex;
    gap: 0.5rem;
}

.project-link {
    color: var(--text-secondary);
    font-size: 1.25rem;
    transition: var(--transition);
    padding: 0.5rem;
    border-radius: 6px;
}

.project-link:hover {
    color: var(--text-accent);
    background-color: var(--bg-primary);
    transform: scale(1.1);
}

/* ===== EDUCATION SECTION ===== */
.education {
    background-color: var(--bg-secondary);
}

.education-timeline {
    max-width: 800px;
    margin: 0 auto 3rem;
}

.timeline-item {
    position: relative;
    padding-left: 3rem;
    padding-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 16px;
    height: 16px;
    background-color: var(--accent-color);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 7px;
    top: 1rem;
    width: 2px;
    height: calc(100% - 1rem);
    background-color: var(--border-color);
}

.timeline-content {
    background-color: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.timeline-content h3 {
    color: var(--text-accent);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.timeline-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
}

.timeline-description {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.timeline-skills {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.school-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    background-color: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.stat-item h4 {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-accent);
    font-family: var(--font-mono);
}

/* ===== CONTACT SECTION ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--text-accent);
    width: 30px;
    margin-top: 0.25rem;
}

.contact-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover,
.contact-item a:focus {
    color: var(--text-accent);
}

.contact-form {
    background-color: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
    color: var(--text-accent);
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition);
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

.form-group input:invalid,
.form-group textarea:invalid {
    border-color: var(--danger-color);
}

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

.error-message {
    color: var(--danger-color);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: block;
}

.btn-loading {
    display: none;
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-right i {
    color: var(--danger-color);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1.25rem;
    }
    
    .skills-overview {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skills-radar {
        order: 1;
    }
    
    .skills-details {
        order: 2;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-secondary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .profile-img {
        width: 200px;
        height: 200px;
    }
    
    .projects {
        padding: 2rem 0;
    }
    
    .progression-timeline {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .timeline-milestones {
        gap: 0.25rem;
    }
    
    .milestone-label {
        font-size: 0.7rem;
    }
    
    .progression-stats {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 1rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .project-card {
        min-height: 260px;
    }
    
    .project-header {
        padding: 0.75rem 0.75rem 0.5rem;
    }
    
    .project-content {
        padding: 0 0.75rem 0.75rem;
    }
    
    .project-content h3 {
        font-size: 1.1rem;
    }
    
    .project-content p {
        font-size: 0.9rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-text h1 {
        font-size: 1.8rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-quote {
        padding: 0.5rem 0.75rem;
    }
    
    .animated-quote {
        max-width: 280px;
        max-height: 35px;
    }
    
    .timeline-milestones {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .milestone {
        flex-direction: row;
        gap: 0.75rem;
        width: 100%;
        justify-content: flex-start;
    }
    
    .progression-stats {
        grid-template-columns: 1fr;
    }
    
    .skill-category {
        padding: 1.5rem;
    }
    
    .project-tech {
        gap: 0.25rem;
    }
    
    .tech-tag {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}

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

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

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

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

/* ===== ANIMATIONS ===== */
.fade-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.achievement-card,
.circle {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.achievement-card.animate-in,
.circle.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 2px rgba(218, 54, 51, 0.2);
}

.error-message {
    color: var(--danger-color);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: block;
    min-height: 1.2em;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .timeline-progress {
        transition: none;
    }
    
    .milestone-dot,
    .project-status.current {
        animation: none;
    }
    
    .project-card:hover {
        transform: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #ffffff;
        --text-secondary: #cccccc;
    }
    
    .project-card {
        border: 2px solid var(--text-primary);
    }
    
    .tech-tag {
        border: 2px solid currentColor;
    }
}

/* Print styles */
@media print {
    .navbar,
    .footer,
    .hero-buttons,
    .contact-form {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
    
    section {
        page-break-inside: avoid;
        padding: 1rem 0;
    }
}