/* ============================================================
   CURRICULUM VITAE — João Vitor Cunha dos Santos
   Professional Interactive Resume
   ============================================================ */

/* ==================== VARIABLES ==================== */
:root {
    /* Colors - Dark Theme (default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-tertiary: #1a1a24;
    --bg-card: #14141e;
    --bg-card-hover: #1c1c2a;

    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --text-tertiary: #6a6a82;

    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-dark: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --accent-glow-strong: rgba(99, 102, 241, 0.3);

    --gradient-primary: linear-gradient(135deg, #6366f1, #8b5cf6);
    --gradient-accent: linear-gradient(135deg, #6366f1, #06b6d4);
    --gradient-text: linear-gradient(135deg, #6366f1, #a78bfa, #06b6d4);

    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.1);

    /* Layout */
    --nav-height: 72px;
    --container-max: 1200px;
    --section-padding: 120px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

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

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #fafafe;
    --bg-secondary: #f0f0f6;
    --bg-tertiary: #e8e8f0;
    --bg-card: #ffffff;
    --bg-card-hover: #f5f5fc;

    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-tertiary: #8a8aa8;

    --accent: #4f46e5;
    --accent-light: #6366f1;
    --accent-dark: #4338ca;
    --accent-glow: rgba(79, 70, 229, 0.1);
    --accent-glow-strong: rgba(79, 70, 229, 0.2);

    --border: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.15);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(79, 70, 229, 0.08);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

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

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

::selection {
    background: var(--accent);
    color: white;
}

/* ==================== UTILITIES ==================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section__header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 64px;
}

.section__number {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent);
    font-weight: 500;
}

.section__title {
    font-size: 2rem;
    font-weight: 700;
    white-space: nowrap;
}

.section__line {
    flex: 1;
    height: 1px;
    background: var(--border);
    max-width: 300px;
}

/* ==================== LOADER ==================== */
.loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

.loader__content {
    text-align: center;
}

.loader__code {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

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

.loader__text {
    color: var(--text-primary);
    min-width: 180px;
    text-align: left;
}

.loader__cursor {
    animation: blink 0.8s step-end infinite;
    color: var(--accent);
}

.loader__bar {
    width: 200px;
    height: 3px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

.loader__progress {
    width: 0%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* ==================== CURSOR GLOW ==================== */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
}

.cursor-glow.active {
    opacity: 1;
}

@media (max-width: 768px) {
    .cursor-glow { display: none; }
}

/* ==================== NAVBAR ==================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: all var(--transition-base);
    backdrop-filter: blur(0px);
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .nav.scrolled {
    background: rgba(250, 250, 254, 0.85);
}

.nav__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 2px;
    transition: transform var(--transition-spring);
}

.nav__logo:hover { transform: scale(1.05); }

.nav__logo-bracket {
    color: var(--accent);
}

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

.nav__menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav__link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    transition: all var(--transition-base);
    position: relative;
}

.nav__link:hover,
.nav__link.active {
    color: var(--accent);
    background: var(--accent-glow);
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav__lang,
.nav__theme {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.nav__lang:hover,
.nav__theme:hover {
    color: var(--accent);
    background: var(--accent-glow);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.nav__lang {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
}

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

.nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.nav__hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-secondary);
    transition: all var(--transition-base);
    border-radius: 1px;
}

.nav__hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nav__hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

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

.hero__particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero__greeting {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

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

.hero__name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero__name-highlight {
    display: block;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero__title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 1.125rem;
    margin-bottom: 24px;
}

.hero__title-prefix {
    color: var(--accent);
    font-weight: 700;
}

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

.hero__typewriter-cursor {
    color: var(--accent);
    animation: blink 0.8s step-end infinite;
}

.hero__description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 540px;
}

.hero__cta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn--primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

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

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

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

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

/* Social */
.hero__social {
    display: flex;
    gap: 12px;
}

.hero__social-link {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

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

/* Code Window */
.hero__visual {
    display: flex;
    justify-content: center;
}

.hero__code-window {
    width: 100%;
    max-width: 480px;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.hero__code-window:hover {
    transform: translateY(-4px) rotate(-0.5deg);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.code-window__header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.code-window__dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot--red { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green { background: #28c840; }

.code-window__title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.code-window__body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.9;
    overflow-x: auto;
}

.code-window__body code {
    color: var(--text-secondary);
}

/* Scroll Indicator */
.hero__scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero__scroll-btn {
    color: var(--text-tertiary);
    animation: bounce 2s ease-in-out infinite;
    display: block;
    transition: color var(--transition-base);
}

.hero__scroll-btn:hover { color: var(--accent); }

/* ==================== ABOUT ==================== */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

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

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

.about__stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 24px;
    text-align: center;
    transition: all var(--transition-base);
}

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

.stat-card__icon {
    color: var(--accent);
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
}

.stat-card__number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.stat-card__label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* ==================== TIMELINE ==================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), var(--accent-glow), transparent);
}

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

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

.timeline__marker {
    position: absolute;
    left: -7px;
    top: 24px;
}

.timeline__dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 16px var(--accent-glow-strong);
}

.timeline__card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: all var(--transition-base);
}

.timeline__card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
    transform: translateX(4px);
}

.timeline__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.timeline__badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid var(--accent);
}

.timeline__date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.timeline__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.timeline__subtitle {
    font-size: 0.9rem;
    color: var(--accent-light);
    margin-bottom: 16px;
}

.timeline__list {
    margin-bottom: 20px;
}

.timeline__list li {
    position: relative;
    padding-left: 20px;
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-bottom: 8px;
}

.timeline__list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent);
}

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

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 6px;
    background: var(--accent-glow);
    color: var(--accent-light);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* ==================== PROJECTS ==================== */
.projects__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.project-card__glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), var(--accent-glow) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

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

.project-card--featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--bg-card), rgba(99, 102, 241, 0.05));
    border-color: rgba(99, 102, 241, 0.2);
}

.project-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

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

.project-card__links {
    display: flex;
    gap: 12px;
}

.project-card__links a {
    color: var(--text-tertiary);
    transition: color var(--transition-base), transform var(--transition-base);
}

.project-card__links a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

.project-card__badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.project-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    transition: color var(--transition-base);
}

.project-card:hover .project-card__title { color: var(--accent-light); }

.project-card__description {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

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

/* ==================== SKILLS ==================== */
.skills__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.skill-group {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: all var(--transition-base);
}

.skill-group:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
}

.skill-group__title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.skill-group__title svg { color: var(--accent); }

.skill-group__items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.skill-item {
    position: relative;
}

.skill-item__info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
}

.skill-item__name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.skill-item__level {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
}

.skill-item__bar {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.skill-item__fill {
    height: 100%;
    width: 0%;
    background: var(--gradient-primary);
    border-radius: 3px;
    transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.skill-item.animated .skill-item__fill {
    width: var(--skill-level);
}

.skill-group__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip {
    padding: 8px 18px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.chip:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

/* ==================== EDUCATION ==================== */
.education__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.edu-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: all var(--transition-base);
    position: relative;
}

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

.edu-card__icon {
    color: var(--accent);
    margin-bottom: 16px;
}

.edu-card__badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
    margin-bottom: 12px;
}

.edu-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.edu-card__institution {
    font-size: 0.9rem;
    color: var(--accent-light);
    margin-bottom: 4px;
}

.edu-card__date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.edu-card__progress {
    margin-top: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.edu-card__progress-bar {
    flex: 1;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    position: relative;
    overflow: hidden;
}

.edu-card__progress-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    width: var(--progress);
    background: var(--gradient-primary);
    border-radius: 3px;
}

.edu-card__progress-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
}

.edu-card--certs {
    grid-column: span 1;
}

.edu-card__list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.edu-card__list li {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-left: 16px;
    position: relative;
}

.edu-card__list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent);
}

.edu-card__list li strong {
    font-size: 0.9rem;
    font-weight: 600;
}

.edu-card__list li span {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ==================== CONTACT ==================== */
.contact__content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact__text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.8;
}

.contact__cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all var(--transition-base);
    text-align: left;
}

.contact-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.contact-card__label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    display: block;
}

.contact-card__value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.contact__location {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* ==================== FOOTER ==================== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
}

.footer__content {
    text-align: center;
}

.footer__text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.footer__heart {
    color: #ef4444;
    display: inline-block;
    animation: heartbeat 1.5s ease-in-out infinite;
}

.footer__copyright {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .hero__container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero__content {
        order: 1;
    }

    .hero__visual {
        order: 0;
    }

    .hero__description {
        max-width: 100%;
    }

    .hero__cta {
        justify-content: center;
    }

    .hero__social {
        justify-content: center;
    }

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

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

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

    .edu-card--certs {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 64px;
        --nav-height: 64px;
    }

    .nav__menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 999;
    }

    .nav__menu.active {
        transform: translateX(0);
    }

    .nav__menu .nav__link {
        font-size: 1.2rem;
        padding: 16px 32px;
    }

    .nav__hamburger {
        display: flex;
    }

    .hero__name {
        font-size: 2.2rem;
    }

    .hero__code-window {
        max-width: 100%;
    }

    .section__header {
        margin-bottom: 40px;
    }

    .section__title {
        font-size: 1.5rem;
    }

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

    .project-card--featured {
        grid-column: 1;
    }

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

    .edu-card--certs {
        grid-column: 1;
    }

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

    .timeline::before {
        left: 0;
    }

    .timeline__item {
        padding-left: 36px;
    }

    .timeline__card {
        padding: 24px;
    }
}

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

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

    .about__stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 20px 16px;
    }

    .stat-card__number {
        font-size: 2rem;
    }
}

/* Print */
@media print {
    .nav, .hero__particles, .cursor-glow, .loader,
    .hero__scroll, .nav__actions { display: none !important; }

    body { background: white; color: black; }

    .section { padding: 32px 0; page-break-inside: avoid; }
}