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

:root {
    --bg: #0d1117;
    --text: #ffffff;
    --muted: #8b949e;
    --header-bg: rgba(22, 27, 34, 0.7);
    --surface: #161b22;
    --surface-2: #21262d;
    --border: #30363d;
    --accent: #238636;
    --accent-2: #2ea043;
    --accent-bright: #58a6ff;
    --success: #3fb950;
    --glow: radial-gradient(circle, rgba(56, 189, 248, 0.12), transparent);
    --shadow-accent: rgba(35, 134, 54, 0.3);
    --shadow-card: rgba(35, 134, 54, 0.25);
    --modal-bg: rgba(0, 0, 0, 0.85);
}

body[data-theme="light"] {
    --bg: #f5f7fb;
    --text: #0f172a;
    --muted: #475569;
    --header-bg: rgba(255, 255, 255, 0.82);
    --surface: #ffffff;
    --surface-2: #eef2f7;
    --border: #d8e0ea;
    --accent: #0f766e;
    --accent-2: #0ea5a0;
    --accent-bright: #0369a1;
    --success: #047857;
    --glow: radial-gradient(circle, rgba(14, 165, 160, 0.18), transparent);
    --shadow-accent: rgba(15, 118, 110, 0.18);
    --shadow-card: rgba(15, 118, 110, 0.2);
    --modal-bg: rgba(15, 23, 42, 0.82);
}

/* BODY */
body {
    font-family: 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    opacity: 1;
    animation: pageFadeIn 0.6s ease;
    transition: background-color 0.35s ease, color 0.35s ease;
}

/* FADE IN */
body.loaded {
    opacity: 1;
}

@keyframes pageFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* BACKGROUND GLOW */
body::before {
    content: "";
    position: fixed;
    width: 600px;
    height: 600px;
    background: var(--glow);
    top: -150px;
    left: -150px;
    z-index: -1;
}

/* NAV */
header {
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    padding: 15px 40px;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    color: var(--text);
    text-decoration: none;
    font-size: 1.16rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 18px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav li {
    margin-left: 25px;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    transition: 0.3s;
}

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

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

.theme-toggle {
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    border-radius: 999px;
    padding: 6px 12px 6px 8px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: var(--accent-bright);
}

.theme-toggle-track {
    width: 44px;
    height: 24px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    position: relative;
    flex-shrink: 0;
}

.theme-toggle-thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #ffffff;
    transition: transform 0.25s ease;
}

body[data-theme="light"] .theme-toggle-thumb {
    transform: translateX(20px);
}

.theme-toggle-label {
    font-size: 0.9rem;
    font-weight: 600;
}

/* HERO */

.hero {
    text-align: center;
    padding: 12px 20px 24px;
}

.hero-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border-radius: 999px;
    background: linear-gradient(
        135deg,
        color-mix(in srgb, var(--accent) 30%, transparent),
        color-mix(in srgb, var(--accent-bright) 14%, transparent)
    );
    border: 1px solid color-mix(in srgb, var(--accent-bright) 42%, var(--border));
    color: color-mix(in srgb, var(--text) 92%, white);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    margin: 0 auto 18px;
    box-shadow:
        0 0 0 1px color-mix(in srgb, var(--accent) 14%, transparent),
        0 14px 30px color-mix(in srgb, var(--shadow-accent) 45%, transparent);
}

.hero-status::before {
    content: "●";
    color: var(--success);
    font-size: 0.78rem;
    margin-right: 8px;
}

.hero-image {
    width: min(190px, 46vw);
    margin: 8px auto 10px;
    padding: 10px;
    border-radius: 28px;
    background:
        linear-gradient(145deg, color-mix(in srgb, var(--accent-bright) 18%, transparent), transparent 45%),
        linear-gradient(180deg, color-mix(in srgb, var(--surface) 94%, transparent), color-mix(in srgb, var(--surface-2) 78%, transparent));
    border: 1px solid color-mix(in srgb, var(--accent-bright) 18%, var(--border));
    box-shadow:
        0 26px 60px color-mix(in srgb, var(--accent-bright) 12%, transparent),
        0 10px 24px rgba(0, 0, 0, 0.18);
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 18px;
    border: 2px solid color-mix(in srgb, var(--accent) 68%, white);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-image img:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: 0 22px 45px color-mix(in srgb, var(--accent-bright) 16%, transparent);
}

.hero-tagline {
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent-bright);
    margin: 0 auto 6px;
    font-weight: 600;
}

.hero h1 {
    font-size: 2.28rem;
    line-height: 1.12;
    margin: 0 auto 8px;
    max-width: 820px;

    background: linear-gradient(90deg, var(--accent-bright), var(--success), var(--accent-bright));
    background-size: 200% auto;

    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;

    animation: gradientMove 4s linear infinite;
}

.hero p {
    color: var(--muted);
    max-width: 640px;
    margin: auto;
}

.hero-subtext {
    font-size: 0.98rem;
    line-height: 1.55;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.hero-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-top: 28px;
    text-align: left;
}

.highlight-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
    box-shadow: 0 12px 30px color-mix(in srgb, var(--shadow-card) 35%, transparent);
}

.highlight-card::before,
.difference-card::before,
.next-step-card::before {
    content: attr(data-icon);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 14px;
    background: color-mix(in srgb, var(--accent-bright) 18%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent-bright) 24%, var(--border));
    box-shadow: 0 10px 24px color-mix(in srgb, var(--shadow-card) 28%, transparent);
    font-size: 1.1rem;
    margin-bottom: 14px;
}

.highlight-label {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--accent-bright);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.highlight-card p {
    margin: 0;
    color: var(--text);
    font-size: 0.95rem;
}

@keyframes gradientMove {
    0% {
        background-position: 0% center;
    }
    100% {
        background-position: 200% center;
    }
}

/* BUTTONS */
.btn {
    padding: 12px 26px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
    text-decoration: none;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px var(--shadow-accent);
}

.btn.secondary:hover {
    background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.7rem;
    height: 1.7rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    line-height: 1;
    flex-shrink: 0;
}

.btn.secondary .btn-icon {
    background: color-mix(in srgb, var(--accent) 16%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--border));
}

.btn-text {
    display: inline-block;
}

/* SECTIONS */
section {
    max-width: 1000px;
    margin: auto;
    padding: 50px 20px;
    border-bottom: 1px solid color-mix(in srgb, var(--border) 45%, transparent);
}

section h2 {
    border-left: 4px solid var(--accent);
    padding-left: 12px;
    margin-bottom: 18px;
    font-size: 1.8rem;
}

.section-lead {
    color: var(--muted);
    max-width: 760px;
    margin-bottom: 18px;
    font-size: 1rem;
}

.what-i-do {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.what-i-do li {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
    color: var(--text);
    box-shadow: 0 12px 26px color-mix(in srgb, var(--shadow-card) 25%, transparent);
}

.what-i-do li::before,
.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 14px;
    background: color-mix(in srgb, var(--accent-bright) 16%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent-bright) 22%, var(--border));
    color: var(--text);
    box-shadow: 0 10px 24px color-mix(in srgb, var(--shadow-card) 25%, transparent);
    font-size: 1.05rem;
    margin-bottom: 14px;
}

.what-i-do li::before {
    content: attr(data-icon);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.skill-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    box-shadow: 0 12px 28px color-mix(in srgb, var(--shadow-card) 25%, transparent);
}

.skill-card h3 {
    margin-bottom: 14px;
    color: var(--accent-bright);
    font-size: 1.02rem;
}

.project-intro {
    margin-bottom: 30px;
}

/* PROJECT LAYOUT */
.project-card {
    display: flex;
    gap: 20px;
    align-items: stretch;
    background: var(--surface);
    padding: 20px;
    margin-top: 25px;
    border-radius: 14px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px var(--shadow-card);
    border-color: var(--accent);
}

/* IMAGE */
.project-img {
    width: 45%;
    max-height: 260px;
    object-fit: contain;
    background: var(--bg);
    border-radius: 8px;
}

/* TEXT */
.project-content {
    width: 55%;
}

.project-content h3 {
    line-height: 1.25;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin: 8px 0 12px;
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 600;
}

.project-meta span {
    display: inline-flex;
    align-items: center;
}

.project-meta span:not(.project-status)::after {
    content: "";
    width: 4px;
    height: 4px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--muted) 65%, transparent);
    margin-left: 10px;
}

.project-meta span:last-child::after,
.project-meta .project-status::after {
    display: none;
}

.project-status {
    padding: 4px 10px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--border));
    color: var(--text);
    font-size: 0.78rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.project-status-live {
    background: color-mix(in srgb, var(--success) 16%, transparent);
    border-color: color-mix(in srgb, var(--success) 30%, var(--border));
}

/* TAGS */
.tags {
    margin: 8px 0 12px;
}

.tags span {
    background: var(--surface-2);
    padding: 5px 9px;
    margin: 3px;
    border-radius: 5px;
    font-size: 11px;
    border: 1px solid var(--border);
}

/* TEXT */
.project-card p {
    color: var(--text);
    margin-bottom: 8px;
}

.project-card ul {
    margin: 8px 0 12px 18px;
}

.project-card li + li {
    margin-top: 6px;
}

/* IMPACT */
.impact {
    color: var(--success);
    font-weight: 700;
    margin-top: 8px;
}

/* IMAGE HOVER */
.preview-img {
    cursor: zoom-in;
    transition: transform 0.3s;
}

.preview-img:hover {
    transform: scale(1.02);
}

/* MODAL BACKGROUND */
.modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: var(--modal-bg);
    justify-content: center;
    align-items: center;
}

/* IMAGE */
.modal-content {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
}

/* CLOSE BUTTON */
.close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: white;
    font-size: 30px;
    cursor: pointer;
}

.next-step-card {
    background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 88%, transparent), var(--surface-2));
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 16px 36px color-mix(in srgb, var(--shadow-card) 30%, transparent);
}

.next-step-card h3 {
    margin-bottom: 10px;
    color: var(--accent-bright);
}

.next-step-card p {
    margin-bottom: 12px;
    color: var(--text);
}

.next-step-card ul {
    margin-left: 18px;
}

.resume-cta-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 90%, transparent), var(--surface-2));
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 26px;
    box-shadow: 0 16px 36px color-mix(in srgb, var(--shadow-card) 28%, transparent);
}

.resume-copy {
    max-width: 620px;
}

.resume-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--accent-bright);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.resume-eyebrow::before {
    content: "";
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--success);
    box-shadow: 0 0 0 6px color-mix(in srgb, var(--success) 18%, transparent);
}

.resume-copy h3 {
    margin-bottom: 10px;
    font-size: 1.45rem;
}

.resume-copy p {
    color: var(--text);
}

.resume-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: flex-end;
}

.resume-meta {
    margin-top: 14px;
    color: var(--muted);
    font-size: 0.9rem;
}

.resume-recruiter-cta {
    margin-top: 18px;
    max-width: 760px;
    color: var(--text);
    font-weight: 600;
}

.resume-recruiter-cta a {
    color: var(--accent-bright);
    text-decoration: none;
}

.resume-recruiter-cta a:hover {
    text-decoration: underline;
}

.contact-text {
    max-width: 760px;
    color: var(--text);
}

.contact-note {
    margin-top: 10px;
    color: var(--accent-bright);
    font-weight: 600;
}

.contact-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

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

.show {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    header {
        padding: 15px 20px;
    }

    nav {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .nav-right {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
    }

    nav ul {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
    }

    nav li {
        margin-left: 0;
    }

    .theme-toggle {
        margin-left: auto;
        padding-right: 10px;
    }

    .project-card {
        flex-direction: column;
    }

    .project-img,
    .project-content {
        width: 100%;
    }

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

    .resume-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .hero {
        padding: 12px 18px 22px;
    }

    .hero-image {
        width: min(155px, 48vw);
        margin-top: 6px;
    }

    .hero h1 {
        font-size: 1.65rem;
    }

    .hero-subtext {
        font-size: 0.9rem;
    }

    .hero-highlights {
        grid-template-columns: 1fr;
    }

    .what-i-do,
    .skills-grid {
        grid-template-columns: 1fr;
    }

}

.skills-group {
    margin-bottom: 25px;
}

.skills-group h3 {
    margin-top: 25px;
    margin-bottom: 8px;
    color: var(--accent-bright);
    font-size: 1.1rem;
}

.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skills-container span {
    background: var(--surface);
    padding: 10px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 13px;
    transition: all 0.3s ease;
}

.skills-container span:hover {
    border-color: var(--accent-bright);
    background: var(--surface-2);
    transform: translateY(-3px);
    box-shadow: 0 6px 18px color-mix(in srgb, var(--accent-bright) 25%, transparent);
}

footer {
    text-align: center;
    padding: 20px 10px;
    color: var(--muted);
    border-top: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
    font-size: 0.9rem;
    margin-top: 40px;
}
footer p {
    letter-spacing: 0.5px;
}

.difference-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 25px;
}

.difference-card {
    background: var(--surface);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.difference-card:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--accent-bright);
}

.difference-card h3 {
    margin-bottom: 10px;
    color: var(--accent-bright);
}

.difference-card p {
    color: var(--text);
    font-size: 0.95rem;
}