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

:root {
    --bg: #0b0b0d;
    --bg-raised: #111114;
    --bg-hover: #17171b;
    --border: #1e1e23;
    --border-hover: #2a2a32;
    --text: #e2e2e6;
    --text-secondary: #9494a0;
    --text-dim: #5c5c68;
    --accent: #6366f1;
    --accent-soft: #818cf8;
    --green: #34d399;
    --radius: 12px;
    --radius-sm: 8px;
    --max-w: 960px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    font-size: 16px;
}

/* Fluid container */
.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding-left: clamp(16px, 5vw, 40px);
    padding-right: clamp(16px, 5vw, 40px);
}

.container-narrow {
    max-width: 720px;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ===== NAV ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(11, 11, 13, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

.nav.scrolled {
    border-bottom-color: var(--border);
}

.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 40px);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

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

.nav-links {
    list-style: none;
    display: flex;
    gap: 28px;
    align-items: center;
}

.nav-links a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

.nav-github {
    color: var(--accent-soft) !important;
    font-weight: 500 !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    -webkit-tap-highlight-color: transparent;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== HERO ===== */
.hero {
    padding-top: max(100px, 15vh);
    padding-bottom: clamp(60px, 10vh, 100px);
    min-height: 100dvh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: clamp(32px, 6vw, 80px);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--green);
    padding: 5px 14px;
    background: rgba(52, 211, 153, 0.07);
    border: 1px solid rgba(52, 211, 153, 0.15);
    border-radius: 20px;
    margin-bottom: 24px;
    font-weight: 500;
}

.status-dot {
    width: 6px;
    height: 6px;
    background: var(--green);
    border-radius: 50%;
    animation: blink 2.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-name {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.15;
    margin-bottom: 14px;
}

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

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.hero-desc {
    font-size: clamp(0.88rem, 1.5vw, 0.95rem);
    color: var(--text-dim);
    line-height: 1.75;
    margin-bottom: 28px;
    max-width: 460px;
}

.hero-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s;
    border: 1px solid transparent;
    cursor: pointer;
    font-family: inherit;
    -webkit-tap-highlight-color: transparent;
}

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

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

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

.btn-outline:hover {
    border-color: var(--border-hover);
    color: var(--text);
}

/* Hero right */
.hero-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

.hero-avatar-wrapper {
    width: clamp(160px, 20vw, 210px);
    aspect-ratio: 1;
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(135deg, var(--accent), var(--accent-soft), #a78bfa);
}

.hero-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat { text-align: center; }

.stat-number {
    display: block;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.stat-divider {
    width: 1px;
    height: 28px;
    background: var(--border);
}

/* ===== SECTIONS ===== */
.section-title {
    font-size: clamp(1.4rem, 3vw, 1.65rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 10px;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 40px;
}

/* ===== ABOUT ===== */
.about {
    padding: clamp(64px, 12vh, 100px) 0;
    border-top: 1px solid var(--border);
}

.about .section-title {
    text-align: left;
    margin-bottom: 28px;
}

.about-content p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 14px;
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 32px;
}

.about-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.2s;
}

.about-card:hover {
    border-color: var(--border-hover);
}

.about-card-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.about-card strong {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 1px;
}

.about-card p {
    font-size: 0.78rem;
    color: var(--text-dim);
    margin: 0;
    line-height: 1.4;
}

/* ===== SKILLS ===== */
.skills {
    padding: clamp(64px, 12vh, 100px) 0;
    border-top: 1px solid var(--border);
}

.skills .section-title {
    text-align: left;
    margin-bottom: 32px;
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.skill-group-title {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent-soft);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: 10px;
}

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

.pill {
    padding: 6px 14px;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.pill:hover {
    border-color: var(--accent);
    color: var(--text);
    background: rgba(99, 102, 241, 0.06);
}

/* ===== PROJECTS ===== */
.projects {
    padding: clamp(64px, 12vh, 100px) 0;
    border-top: 1px solid var(--border);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 36px;
}

.project-card {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.25s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.project-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

.project-card:hover .project-arrow {
    transform: translate(2px, -2px);
    color: var(--accent-soft);
}

.project-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.project-icon { font-size: 1.4rem; }

.project-arrow {
    color: var(--text-dim);
    transition: all 0.2s;
}

.project-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.project-card p {
    font-size: 0.83rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex-grow: 1;
    margin-bottom: 16px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.project-tech span {
    font-size: 0.7rem;
    color: var(--text-dim);
    padding: 3px 9px;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.projects-more {
    text-align: center;
}

/* ===== CONTACT ===== */
.contact {
    padding: clamp(64px, 12vh, 100px) 0;
    border-top: 1px solid var(--border);
}

.contact .section-title {
    text-align: left;
}

.contact-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin: 8px 0 32px;
    line-height: 1.7;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    color: var(--text-secondary);
}

.contact-item:hover {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.04);
    color: var(--text);
}

.contact-item svg {
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-size: 0.82rem;
    color: var(--text);
    margin-bottom: 1px;
}

.contact-item span {
    font-size: 0.78rem;
    color: var(--text-dim);
}

/* ===== FOOTER ===== */
.footer {
    padding: 28px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p {
    font-size: 0.78rem;
    color: var(--text-dim);
}

/* ===== FADE IN ===== */
.fade-in {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */

/* Tablet landscape */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr 0.8fr;
        gap: 40px;
    }
}

/* Tablet portrait */
@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: 60px;
    }

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

    .hero-content { order: 2; }
    .hero-visual { order: 1; }

    .hero-badge { margin-left: auto; margin-right: auto; }
    .hero-desc { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-name { font-size: 2.2rem; }

    .about .section-title,
    .skills .section-title,
    .contact .section-title {
        text-align: center;
    }

    .about-content { text-align: center; }
    .contact-desc { text-align: center; }

    .about-cards {
        grid-template-columns: 1fr;
        max-width: 340px;
        margin-left: auto;
        margin-right: auto;
    }

    .skill-pills { justify-content: center; }
    .skill-group-title { text-align: center; }
}

/* Mobile */
@media (max-width: 600px) {
    body { font-size: 15px; }

    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(11, 11, 13, 0.97);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 20px 24px;
        gap: 14px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-110%);
        opacity: 0;
        transition: all 0.3s ease;
        pointer-events: none;
    }

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

    .nav-toggle { display: flex; }

    .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-avatar-wrapper {
        width: 140px;
    }

    .hero-name { font-size: 1.85rem; }

    .hero-stats { gap: 14px; }
    .stat-number { font-size: 1.15rem; }

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

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

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

    .btn {
        width: 100%;
        max-width: 240px;
        justify-content: center;
    }
}

/* Very small */
@media (max-width: 380px) {
    .hero-name { font-size: 1.6rem; }
    .hero-avatar-wrapper { width: 120px; }
    .about-cards { gap: 8px; }
    .stat-number { font-size: 1rem; }
}

/* Tall phones - ensure hero fits */
@media (max-height: 700px) and (max-width: 768px) {
    .hero {
        padding-top: 80px;
        padding-bottom: 40px;
    }
}