/*
  PORTFOLIO — Black, White & Green
  Philosophy: Pure contrast. No gradients. No noise. Every pixel intentional.
  Dark mode default. Light mode available.
*/

/* ── DESIGN TOKENS ─────────────────────────────── */
:root {
    /* Dark Mode (default) */
    --bg: #0d0d0d;
    --bg-card: #141414;
    --bg-hover: #1a1a1a;
    --border: #222222;
    --text: #f5f5f5;
    --text-muted: #6b6b6b;
    --text-soft: #a8a8a8;
    --green: #22c55e;
    /* bright, warm green */
    --green-dim: #15803d;
    /* pressed / subtle */

    /* Radius, transition */
    --r-sm: 6px;
    --r-md: 12px;
    --r-lg: 20px;
    --r-xl: 100px;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --t: 0.25s var(--ease);

    /* Fonts */
    --font: 'Outfit', sans-serif;
    --serif: 'Playfair Display', serif;
}

/* ── LIGHT MODE ────────────────────────────────── */
body.light-mode {
    --bg: #ffffff;
    --bg-card: #f5f5f5;
    --bg-hover: #ebebeb;
    --border: #e0e0e0;
    --text: #0d0d0d;
    --text-muted: #9e9e9e;
    --text-soft: #555555;
    --green: #16a34a;
    /* deeper for light backgrounds */
    --green-dim: #14532d;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background var(--t), color var(--t);
}

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

ul {
    list-style: none;
}

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

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

/* ── LAYOUT ────────────────────────────────────── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ── HEADER ────────────────────────────────────── */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    transition: background var(--t), border-color var(--t);
}

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

.logo {
    font-family: var(--serif);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--text);
}

.dot {
    color: var(--green);
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.2px;
    transition: color var(--t);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--green);
    transition: width var(--t);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-extras {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.lang-btn,
.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    display: grid;
    place-items: center;
    transition: color var(--t), border-color var(--t), background var(--t);
}

.lang-btn:hover,
.theme-toggle:hover {
    border-color: var(--green);
    color: var(--green);
    background: transparent;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
}

.bar {
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--t);
}

/* ── HERO ───────────────────────────────────────── */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 64px;
    /* nav height */
    border-bottom: 1px solid var(--border);
}

.hero-content {
    padding: 6rem 0;
}

.hero-greeting {
    font-size: 0.8rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.hero-title {
    font-size: clamp(3.5rem, 9vw, 7.5rem);
    font-weight: 900;
    line-height: 1.0;
    letter-spacing: -4px;
    color: var(--text);
    margin-bottom: 1.5rem;
}

/* NO gradient on name — just the clean white/black text */
.hero-name-accent {
    color: var(--green);
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--text-soft);
    font-weight: 400;
    letter-spacing: 0.3px;
    margin-bottom: 2rem;
    max-width: 480px;
}

.separator {
    color: var(--green);
    margin: 0 8px;
    opacity: 0.6;
}

.hero-badges {
    display: flex;
    gap: 0.6rem;
    margin-bottom: 3rem;
}

.badge {
    font-size: 0.78rem;
    padding: 0.35rem 0.8rem;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    color: var(--text-soft);
    background: var(--bg-card);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* ── BUTTONS ────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: var(--r-sm);
    font-weight: 600;
    font-size: 0.88rem;
    letter-spacing: 0.3px;
    transition: var(--t);
}

.btn-primary {
    background: var(--green);
    color: #ffffff;
    border: 1px solid var(--green);
}

.btn-primary:hover {
    background: var(--green-dim);
    border-color: var(--green-dim);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    border-color: var(--text);
    transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-indicator {
    padding: 3rem 0 2.5rem;
}

.mouse {
    width: 22px;
    height: 36px;
    border: 1.5px solid var(--border);
    border-radius: 14px;
    position: relative;
}

.wheel {
    width: 3px;
    height: 5px;
    background: var(--green);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollwheel 1.6s ease infinite;
}

@keyframes scrollwheel {
    from {
        top: 6px;
        opacity: 1;
    }

    to {
        top: 20px;
        opacity: 0;
    }
}

/* ── SECTIONS ───────────────────────────────────── */
.section {
    padding: 7rem 0;
    border-bottom: 1px solid var(--border);
}

.section:last-child {
    border-bottom: none;
}

.section-header {
    margin-bottom: 4rem;
}

.section-label {
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--green);
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -1.5px;
    line-height: 1.1;
    color: var(--text);
}

/* ── ABOUT ──────────────────────────────────────── */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    /* border grid trick */
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    overflow: hidden;
}

.about-card {
    background: var(--bg);
    padding: 2.5rem 2rem;
    transition: background var(--t);
}

.about-card:hover {
    background: var(--bg-card);
}

.about-card .card-icon {
    font-size: 1.4rem;
    color: var(--green);
    margin-bottom: 1.2rem;
}

.about-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.6rem;
    letter-spacing: -0.2px;
}

.about-card p {
    font-size: 0.85rem;
    color: var(--text-soft);
    line-height: 1.65;
}

/* ── SKILLS ─────────────────────────────────────── */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.skill-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-soft);
    transition: var(--t);
}

.skill-pill i {
    color: var(--green);
    font-size: 0.85rem;
}

.skill-pill:hover {
    border-color: var(--green);
    color: var(--text);
    background: var(--bg-hover);
}

/* ── PROJECTS ───────────────────────────────────── */
.projects-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
}

.carousel-controls {
    display: flex;
    gap: 1rem;
}

.carousel-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    display: grid;
    place-items: center;
    transition: var(--t);
}

.carousel-btn:hover {
    border-color: var(--green);
    color: var(--green);
    background: var(--bg-hover);
}

.projects-showcase {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    padding-bottom: 2rem;
    -ms-overflow-style: none;
    /* IE/Edge */
    scrollbar-width: none;
    /* Firefox */
}

.projects-showcase::-webkit-scrollbar {
    display: none;
}

.project-row {
    flex: 0 0 100%;
    scroll-snap-align: center;
    display: flex;
    align-items: center;
    gap: 4rem;
}

.project-row:nth-child(even) {
    flex-direction: row;
}

.project-image-container {
    flex: 1.2;
    height: 440px;
    border-radius: var(--r-md);
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border);
    background: var(--bg-card);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
    transition: transform 0.6s var(--ease), filter 0.4s;
}

.project-row:hover .project-img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.project-row:hover .project-overlay {
    opacity: 1;
}

.btn-icon {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: var(--green);
    color: #fff;
    font-size: 1.2rem;
    display: grid;
    place-items: center;
    transition: transform 0.2s, background 0.2s;
}

.btn-icon:hover {
    transform: scale(1.1);
    background: var(--green-dim);
}

.project-info {
    flex: 1;
    padding: 1rem 0;
}

.project-name {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 0.8rem;
    letter-spacing: -0.5px;
}

.project-desc {
    font-size: 1.05rem;
    color: var(--text-soft);
    margin-bottom: 1.8rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--bg);
    background: var(--text);
    padding: 0.4rem 1rem;
    border-radius: 100px;
}

/* ── CONTACT ────────────────────────────────────── */
.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.contact-left .contact-text {
    font-size: 0.95rem;
    color: var(--text-soft);
    margin-bottom: 2.5rem;
    max-width: 420px;
    line-height: 1.7;
}

.contact-actions {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.social-stack {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.2rem;
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    background: var(--bg-card);
    color: var(--text-soft);
    transition: var(--t);
    font-size: 0.88rem;
}

.social-link i {
    width: 18px;
    color: var(--green);
    font-size: 1rem;
}

.social-link:hover {
    border-color: var(--green);
    color: var(--text);
    transform: translateX(4px);
}

/* ── FOOTER ─────────────────────────────────────── */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.heart {
    color: var(--green);
}

/* ── ANIMATIONS ─────────────────────────────────── */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.7s var(--ease) forwards;
}

.delay-1 {
    animation-delay: 0.08s;
}

.delay-2 {
    animation-delay: 0.16s;
}

.delay-3 {
    animation-delay: 0.24s;
}

.delay-4 {
    animation-delay: 0.34s;
}

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

/* ── MODALS ─────────────────────────────────────── */
.modal {
    position: fixed;
    inset: 0;
    z-index: 3000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-content {
    position: relative;
    width: min(92vw, 860px);
    padding: 2rem;
    color: var(--text);
}

.close-modal {
    position: absolute;
    top: -42px;
    right: 0;
    font-size: 1.8rem;
    color: #fff;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.close-modal:hover {
    opacity: 1;
}

/* Carousel */
.carousel-container {
    position: relative;
    border-radius: var(--r-md);
    overflow: hidden;
}

.carousel-slide {
    display: none;
    text-align: center;
}

.carousel-slide img {
    max-width: 100%;
    max-height: 72vh;
    border-radius: var(--r-sm);
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--green);
    color: #fff;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s;
}

.carousel-prev {
    left: 10px;
}

.carousel-next {
    right: 10px;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: var(--green-dim);
}

/* Project Detail Modal */
.detail-container {
    display: flex;
    gap: 2rem;
}

.project-detail-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 2.5rem;
}

.detail-image-wrapper {
    flex: 1;
}

.detail-image-wrapper img {
    width: 100%;
    border-radius: var(--r-sm);
}

.detail-text-wrapper {
    flex: 1;
}

#detail-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

#detail-description {
    font-size: 0.9rem;
    color: var(--text-soft);
    line-height: 1.7;
}

#close-project-modal {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
}

#close-project-modal:hover {
    color: var(--green);
}

/* ── RESPONSIVE ─────────────────────────────────── */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
    }

    .contact-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .project-row,
    .project-row:nth-child(even) {
        flex-direction: column;
        gap: 2rem;
    }

    .project-image-container {
        width: 100%;
        height: 280px;
    }
}

@media (max-width: 640px) {
    .nav-list {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 75%;
        background: var(--bg);
        border-left: 1px solid var(--border);
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding: 3rem 2rem;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.35s var(--ease);
        z-index: 999;
    }

    .nav-list.active {
        transform: translateX(0);
    }

    .nav-link {
        font-size: 1.2rem;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

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

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

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

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

    .hero-title {
        letter-spacing: -2px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: flex-start;
    }

    .detail-container {
        flex-direction: column;
    }
}