/* ===========================================
   CSS Variables — Dark Theme (default)
   =========================================== */
:root {
    --bg-primary: #0B0F19;
    --bg-secondary: #111827;
    --bg-card: #1F2937;
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --accent: #10B981;
    --accent-hover: #34D399;
    --accent-muted: #062E22;
    --border: #1E293B;
    --success: #22C55E;
    --danger: #EF4444;
    --shadow: 0 1px 3px rgba(0, 0, 0, .5);
    --nav-bg: rgba(11, 15, 25, .88);
    --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Fira Code', 'JetBrains Mono', monospace;
    --radius: 10px;
    --transition: .25s ease;
}

/* ===========================================
   Light Theme
   =========================================== */
[data-theme="light"] {
    --bg-primary: #FBFCFD;
    --bg-secondary: #F1F5F9;
    --bg-card: #FFFFFF;
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --accent: #059669;
    --accent-hover: #047857;
    --accent-muted: #D1FAE5;
    --border: #CBD5E1;
    --success: #16A34A;
    --danger: #DC2626;
    --shadow: 0 1px 3px rgba(15, 23, 42, .08);
    --nav-bg: rgba(251, 252, 253, .88);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* ===========================================
   Entrance Animations
   =========================================== */
/* Nav slides down */
.main-nav {
    animation: slideDown .6s ease both;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero stagger entrance */
.hero-stagger {
    opacity: 0;
    transform: translateY(30px);
}

.hero-stagger.animate {
    animation: riseIn .7s cubic-bezier(.22, 1, .36, 1) forwards;
}

@keyframes riseIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(.97);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

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

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

ul {
    list-style: none;
}

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

/* ===========================================
   Utility
   =========================================== */
.container {
    max-width: 1060px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* ===========================================
   Scroll Progress
   =========================================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: var(--accent);
    z-index: 1001;
    transition: width .1s linear;
}

/* ===========================================
   Navigation
   =========================================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition), border-color var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.logo-cursor {
    font-family: var(--font-mono);
    color: var(--accent);
    animation: blink 1s step-end infinite;
}

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

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

.nav-link {
    font-size: .875rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 6px;
    transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
    background: var(--accent-muted);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition);
}

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

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

[data-theme="dark"] .icon-moon {
    display: block;
}

[data-theme="light"] .icon-sun {
    display: block;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1002;
    /* Ensure it stays above the menu */
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.nav-toggle.open .hamburger:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open .hamburger:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open .hamburger:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===========================================
   Hero
   =========================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
}

.hero-greeting {
    font-size: 1.1rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 12px;
    font-family: var(--font-mono);
}

.hero-name {
    font-size: clamp(2.6rem, 6vw, 4.2rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -.02em;
}

.hero-typed-wrapper {
    display: flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.terminal-prompt {
    color: var(--accent);
    font-weight: 700;
}

.typed-cursor {
    color: var(--accent);
    animation: blink 1s step-end infinite;
    margin-left: 2px;
}

.hero-bio {
    max-width: 540px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 36px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 8px;
    font-weight: 600;
    font-size: .9rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

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

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

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

.hero-cta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* ===========================================
   Section Common
   =========================================== */
.section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 1.65rem;
    font-weight: 700;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.section-subtitle {
    color: var(--text-secondary);
    margin-top: -28px;
    margin-bottom: 36px;
}

/* ===========================================
   About
   =========================================== */
.about-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 40px;
    align-items: center;
}

.about-card {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    transition: all var(--transition);
}

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

.about-card__avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--accent-muted);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--accent);
    flex-shrink: 0;
}

.about-card>.about-card__avatar {
    float: left;
    margin-right: 16px;
    margin-bottom: 8px;
}

.about-card__info {
    overflow: hidden;
    margin-bottom: 16px;
    padding-top: 4px;
}

.about-card__name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.about-card__role {
    font-size: .82rem;
    color: var(--accent);
    font-weight: 500;
    margin: 0;
}

.about-card__details {
    clear: both;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.about-detail {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .84rem;
    color: var(--text-secondary);
}

.about-detail svg {
    color: var(--accent);
    flex-shrink: 0;
}

.about-card__interests {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.interest-chip {
    font-size: .73rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    background: var(--accent-muted);
    color: var(--accent);
    border: 1px solid transparent;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.interest-chip svg {
    flex-shrink: 0;
}

.interest-chip:hover {
    border-color: var(--accent);
}

.about-text p {
    margin-bottom: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

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

/* ===========================================
   Skills
   =========================================== */
.skills-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.skill-row {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 22px 0;
    border-bottom: 1px solid var(--border);
}

.skill-row:last-child {
    border-bottom: none;
}

.skill-row__label {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 120px;
    flex-shrink: 0;
    font-size: .88rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.skill-row__icon {
    flex-shrink: 0;
    color: var(--accent);
}

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

.skill-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .85rem;
    font-weight: 600;
    font-family: var(--font-mono);
    padding: 8px 18px;
    border-radius: 8px;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
    transition: all var(--transition);
    position: relative;
    padding-left: 30px;
}

.skill-chip::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--dot-color, var(--accent));
}

.skill-chip:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
}

/* ===========================================
   Coming Soon (Projects)
   =========================================== */
.coming-soon {
    text-align: center;
    padding: 60px 20px;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
}

.coming-soon__icon {
    color: var(--accent);
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

.coming-soon__icon svg {
    display: inline-block;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

.coming-soon__title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.coming-soon__text {
    font-size: .95rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* ===========================================
   Project Cards
   =========================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 32px;
}

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

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .project-card:hover {
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.15);
}

.project-card__image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.project-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.project-card:hover .project-card__image img {
    transform: scale(1.05);
}

.project-card__content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

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

.project-card__desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
    flex-grow: 1;
}

.project-card__actions {
    display: flex;
    gap: 12px;
    margin-top: auto;
}

.project-card__actions .btn {
    flex: 1;
    justify-content: center;
}



/* ===========================================
   Contact
   =========================================== */
.contact-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 36px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition);
    text-align: center;
}

.contact-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    color: var(--text-primary);
}

.contact-card svg {
    color: var(--accent);
}

.contact-card__label {
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-secondary);
    font-weight: 600;
}

.contact-card__value {
    font-size: .88rem;
    color: var(--text-secondary);
    word-break: break-all;
}

/* ===========================================
   Footer
   =========================================== */
.main-footer {
    padding: 28px 0;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

.footer-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-copy {
    font-size: .82rem;
    color: var(--text-secondary);
}



/* ===========================================
   Back to Top
   =========================================== */
.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all var(--transition);
    z-index: 900;
    box-shadow: var(--shadow);
}

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

.back-to-top:hover {
    background: var(--accent-hover);
}

/* ===========================================
   Reveal Animation
   =========================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}

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

/* ===========================================
   Responsive
   =========================================== */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--nav-bg);
        border-bottom: 1px solid var(--border);
        padding: 16px;
        gap: 8px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s ease;
        z-index: -1;
        backdrop-filter: blur(12px);
    }

    .nav-links.open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav-link {
        padding: 12px 16px;
        width: 100%;
    }

    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-name {
        font-size: 2rem;
    }

    .hero-bio {
        font-size: .95rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        text-align: center;
        justify-content: center;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.3rem;
    }

    .about-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .about-card {
        padding: 24px;
    }

    .about-card>.about-card__avatar {
        float: none;
        margin: 0 0 12px 0;
    }

    .about-card__info {
        padding-top: 0;
    }

    .about-text p {
        font-size: .93rem;
    }

    .skill-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .skill-row__label {
        min-width: unset;
    }

    .skill-chip {
        font-size: .8rem;
        padding: 6px 14px;
        padding-left: 26px;
    }

    .coming-soon {
        padding: 40px 16px;
    }

    .coming-soon__title {
        font-size: 1.3rem;
    }

    .coming-soon__text {
        font-size: .88rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

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

    .contact-card {
        padding: 20px;
    }

    .footer-container {
        flex-direction: column;
        gap: 14px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 1.7rem;
    }

    .container {
        padding: 0 12px;
    }

    .about-card {
        padding: 20px;
    }

    .about-card__avatar {
        width: 48px;
        height: 48px;
        font-size: 1rem;
    }

    .about-card__name {
        font-size: 1rem;
    }

    .skill-chip {
        font-size: .75rem;
        padding: 5px 12px;
        padding-left: 24px;
    }

    .coming-soon {
        padding: 32px 12px;
    }

    .btn {
        padding: 10px 20px;
        font-size: .85rem;
    }
}