@property --angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

:root {
    --bg: #0a0a1a;
    --surface: rgba(255, 255, 255, 0.04);
    --surface-hover: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --blur: 16px;
    --blur-strong: 24px;
    --accent-1: #38bdf8;
    --accent-2: #e2e8f0;
    --accent-gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    --text-primary: rgba(255, 255, 255, 0.92);
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-muted: rgba(255, 255, 255, 0.4);
    --font-heading: 'Recursive', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

::selection {
    background: rgba(56, 189, 248, 0.3);
    color: var(--text-primary);
}

html {
    scroll-behavior: smooth;
}

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

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

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.4s ease;
}

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

.loader-spinner {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid var(--glass-border);
    border-top-color: var(--accent-1);
    animation: spin 0.8s linear infinite;
}

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

#toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    z-index: 9998;
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 24px;
    border-radius: var(--radius-pill);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--accent-gradient);
    z-index: 1001;
    pointer-events: none;
    transition: width 0.1s linear;
}

#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

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

h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 600;
}

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

.orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    will-change: transform;
}

.orb-parallax {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: transform 0.4s ease-out;
    pointer-events: none;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-1), transparent 70%);
    top: -10%;
    right: -10%;
    animation: orbFloat1 20s ease-in-out infinite;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #cbd5e1, transparent 70%);
    bottom: 20%;
    left: -15%;
    animation: orbFloat2 25s ease-in-out infinite;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #7dd3fc, transparent 70%);
    top: 50%;
    right: 20%;
    animation: orbFloat3 22s ease-in-out infinite;
}

@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-80px, 60px) scale(1.1); }
    66% { transform: translate(40px, -40px) scale(0.95); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(60px, -80px) scale(1.05); }
    66% { transform: translate(-30px, 50px) scale(1.1); }
}

@keyframes orbFloat3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-50px, -60px) scale(1.08); }
    66% { transform: translate(70px, 30px) scale(0.92); }
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 24px;
    opacity: 0;
    transform: translateY(-100%);
    transition: opacity 0.4s ease, transform 0.4s ease, background 0.3s ease;
}

.navbar.visible {
    opacity: 1;
    transform: translateY(0);
    background: rgba(10, 10, 26, 0.7);
    backdrop-filter: blur(var(--blur-strong));
    -webkit-backdrop-filter: blur(var(--blur-strong));
    border-bottom: 1px solid var(--glass-border);
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--surface-hover);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: transform var(--transition), opacity 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);
}

.nav-mobile {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px 0;
}

.nav-mobile.open {
    display: flex;
}

.nav-mobile .nav-link {
    padding: 12px 16px;
}

#hero {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 20px;
}

.hero-content h1 {
    font-size: 72px;
    font-weight: 700;
    letter-spacing: -1px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    animation: heroFadeIn 1s ease-out;
}

.hero-content > p {
    font-size: 22px;
    font-weight: 300;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: heroFadeIn 1s ease-out 0.15s both;
}

.social-links {
    display: flex;
    gap: 16px;
    justify-content: center;
    align-items: center;
    animation: heroFadeIn 1s ease-out 0.3s both;
}

.social-link {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.social-link:hover {
    transform: translateY(-2px);
    background: var(--surface-hover);
    border-color: var(--glass-border-hover);
    box-shadow: 0 8px 32px rgba(56, 189, 248, 0.15);
}

.social-link i {
    font-size: 20px;
    color: var(--text-primary);
}

.social-icon {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
}

.section {
    padding: 100px 24px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.section::after {
    content: '';
    display: block;
    width: 200px;
    height: 1px;
    margin: 60px auto 0;
    background: linear-gradient(90deg, transparent, var(--accent-1), var(--accent-2), transparent);
    opacity: 0.2;
}

.section:last-of-type::after {
    display: none;
}

.section h2 {
    font-size: 36px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 32px;
}

.section > p {
    font-size: 18px;
    max-width: 640px;
    margin: 0 auto;
    color: var(--text-secondary);
    line-height: 1.8;
}

.fancy-underline {
    position: relative;
    display: inline-block;
    color: var(--accent-1);
}

.fancy-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.fancy-underline:hover::after {
    width: 100%;
}

.pill-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.pill {
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.pill:hover {
    transform: translateY(-2px);
    border-color: var(--glass-border-hover);
    background: var(--surface-hover);
}

.pill i {
    font-size: 14px;
    color: var(--accent-1);
}

.pill span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.tech-stack-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    max-width: 600px;
    margin: 0 auto;
}

.tech-stack-item {
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    width: 110px;
    height: 110px;
    padding: 16px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.tech-stack-item:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    background: var(--surface-hover);
    box-shadow: 0 8px 32px rgba(56, 189, 248, 0.1);
}

.tech-stack-item i {
    font-size: 32px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tech-stack-item span {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.projects-container {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 24px;
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 0 auto;
}

.featured-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    order: -1;
    margin-bottom: 16px;
}

.project {
    position: relative;
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    padding: 32px;
    border-radius: var(--radius-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: transform 0.15s ease-out, border-color var(--transition), box-shadow var(--transition);
    width: 280px;
    overflow: hidden;
}

.project::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(250px circle at var(--glow-x, 50%) var(--glow-y, 50%), rgba(56, 189, 248, 0.08), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 0;
    border-radius: var(--radius-md);
}

.project:hover::before {
    opacity: 1;
}

.project h3,
.project p,
.project-links,
.project .badge {
    position: relative;
    z-index: 2;
}

.project:hover {
    border-color: var(--glass-border-hover);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.project.featured {
    max-width: 600px;
    width: 100%;
    background: rgba(56, 189, 248, 0.04);
    padding: 40px;
    border: 1px solid rgba(56, 189, 248, 0.2);
    overflow: visible;
}

.project.featured:hover {
    border-color: rgba(56, 189, 248, 0.35);
    box-shadow: 0 12px 48px rgba(56, 189, 248, 0.08);
}

.project h3 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.project.featured h3 {
    font-size: 32px;
}

.project p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.project.featured p {
    font-size: 17px;
    max-width: 500px;
}

.badge {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent-1);
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.project-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.project-link {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    padding: 10px 24px;
    border-radius: var(--radius-pill);
    transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.project-link:hover {
    background: var(--surface-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.project-link i {
    font-size: 13px;
}

.timeline-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.timeline-container::before {
    content: '';
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-1), var(--accent-2), transparent);
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.3;
}

.timeline-item {
    width: 100%;
    margin: 16px 0;
    position: relative;
}

.timeline-content {
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    border-left: 3px solid var(--accent-1);
    padding: 24px;
    border-radius: var(--radius-md);
    position: relative;
    z-index: 1;
    cursor: pointer;
    transition: border-color var(--transition), box-shadow var(--transition);
    text-align: left;
}

.timeline-content:hover {
    border-color: var(--glass-border-hover);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.timeline-date {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-1);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 8px;
}

.timeline-content h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.timeline-content > p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
    text-align: left;
}

.timeline-extra {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), margin-top 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    margin-top: 0;
}

.timeline-content.expanded .timeline-extra {
    max-height: 200px;
    opacity: 1;
    margin-top: 16px;
}

.timeline-extra p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    text-align: left;
}

footer {
    position: relative;
    z-index: 1;
    padding: 40px 24px;
    border-top: 1px solid var(--glass-border);
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-inner p {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
    text-align: left;
}

.footer-links {
    display: flex;
    gap: 16px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 18px;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--accent-1);
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    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);
}

.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--surface);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

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

.back-to-top:hover {
    background: var(--surface-hover);
    border-color: var(--glass-border-hover);
    box-shadow: 0 8px 32px rgba(56, 189, 248, 0.15);
    transform: translateY(-2px);
}

.typed-cursor {
    font-weight: 300;
    color: var(--accent-1);
    animation: cursorBlink 0.7s step-end infinite;
}

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

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    .nav-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 48px;
    }

    .hero-content > p {
        font-size: 18px;
    }

    .section {
        padding: 80px 20px;
    }

    .section h2 {
        font-size: 28px;
    }

    .project {
        width: 100%;
        max-width: 340px;
    }

    .project.featured {
        padding: 28px;
    }

    .timeline-container::before {
        left: 20px;
    }

    .timeline-content {
        border-left-width: 2px;
        padding: 20px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-inner p {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 38px;
    }

    .hero-content > p {
        font-size: 16px;
    }

    .tech-stack-item {
        width: 95px;
        height: 95px;
    }

    .tech-stack-item i {
        font-size: 26px;
    }

    .project.featured h3 {
        font-size: 26px;
    }

    .pill {
        padding: 8px 16px;
    }
}