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

:root {
    --bg: #0a0b0e;
    --bg2: #0f1117;
    --surface: #14161d;
    --border: #1e2230;
    --accent: #7c5cfc;
    --accent2: #a78bfa;
    --accent3: #38bdf8;
    --text: #e2e8f0;
    --muted: #64748b;
    --mono: 'JetBrains Mono', monospace;
    --sans: 'Syne', sans-serif;
}

html.light {
    --bg: #f4f4f8;
    --bg2: #ebebf2;
    --surface: #ffffff;
    --border: #d4d4e0;
    --accent: #6d44f8;
    --accent2: #8b6cf7;
    --accent3: #0ea5e9;
    --text: #0f0f1a;
    --muted: #6b7280;
}

html {
    scroll-behavior: smooth;
}

body {
    padding-top: env(safe-area-inset-top);
    background: var(--bg);
    color: var(--text);
    font-family: var(--mono);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ── NOISE OVERLAY ── */
body::before {
    content: '';
    position: fixed;
    top: env(safe-area-inset-top);
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg ... SUA STRING AQUI ... %3C/svg%3E");
    pointer-events: none;
    z-index: 0; 
    opacity: 0.4;
}

/* ── NAV ── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: max(1.2rem, env(safe-area-inset-top)) 3rem 1.2rem;
    background: rgba(10, 11, 14, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    font-family: Andale Mono;
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--accent);
    letter-spacing: -0.02em;
    filter: drop-shadow(0 0 8px rgba(124,92,252,0.7)) drop-shadow(0 0 16px rgba(124,92,252,0.4));
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    padding: 2px;
}

.nav-links a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--accent2);
}

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

.nav-flags {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.flag-btn {
    width: 36px;
    height: 28px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    overflow: hidden;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: filter 0.2s, transform 0.2s;
    filter: grayscale(0.4) opacity(0.6);
}

.flag-btn:hover {
    filter: grayscale(0) opacity(0.9);
    transform: scale(1.1);
}

.flag-btn.active {
    filter: grayscale(0) opacity(1);
    transform: scale(1.1);
    filter: drop-shadow(0 0 6px rgba(100, 60, 220, 0.5)) drop-shadow(0 0 12px rgba(100, 60, 220, 0.25));
}

/* ── HERO ── */
#home {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 8rem 3rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
    gap: 4rem;
    position: relative;
}

#constellation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.8s ease;
}

#constellation.hidden {
    opacity: 0;
}

#home>* {
    position: relative;
    z-index: 1;
}




.hero-text {
    animation: fadeUp 0.8s ease both;
}

.hero-pre {
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 1.2rem;
    opacity: 0;
    animation: fadeUp 0.6s ease 0.1s both;
}

.hero-name {
    font-family: AppleMyungjo;
    font-weight: 800;
    font-size: clamp(1.6rem, 6vw, 4.5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 0.4rem;
    opacity: 0;
    animation: fadeUp 0.7s ease 0.2s both;
}

/* desktop: break after Ana */
.hero-name-break::after {
    content: '\A';
    white-space: pre;
}

.hero-bracket-close {
    display: inline;
}

.hero-name span {
    color: var(--accent);
}

.hero-name-carolina {
    color: var(--accent);
}

.hero-name-bracket {
    color: var(--accent);
    font-family: var(--mono);
    font-weight: 400;
}

.hero-role {
    font-size: 0.8rem;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.7s ease 0.3s both;
}

.hero-stack {
    font-size: 0.85rem;
    color: var(--accent2);
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fadeUp 0.7s ease 0.4s both;
}

.hero-stack span {
    color: var(--muted);
}

.hero-socials {
    display: flex;
    gap: 1rem;
    opacity: 0;
    animation: fadeUp 0.7s ease 0.5s both;
}

.social-btn {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    text-decoration: none;
    background: var(--surface);
    transition: all 0.2s;
    font-size: 1.1rem;
}

.social-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(124, 92, 252, 0.1);
    transform: translateY(-2px);
}

.hero-photo-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.4s both;
    position: relative;
}

.photo-card {
    width: 320px;
    height: 380px;
    border-radius: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    overflow: hidden;
    position: relative;
    box-shadow: 0 0 40px rgba(124, 92, 252, 0.35), 0 0 80px rgba(124, 92, 252, 0.15), 0 40px 80px rgba(0, 0, 0, 0.5);
}

.photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

.photo-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(transparent, rgba(10, 11, 14, 0.9));
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 1rem;
    font-family: var(--sans);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--accent);
    letter-spacing: 0.1em;
}

/* ── SECTIONS ── */
section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 4rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}

.section-tag::before {
    content: '< ';
}

.section-tag::after {
    content: ' />';
}

.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, var(--accent), rgba(124, 92, 252, 0.2), transparent);
    margin-bottom: 4rem;
}

/* ── ABOUT ── */
#about p {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text);
    max-width: 100vw;
}

#about p a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid rgba(124, 92, 252, 0.3);
    transition: border-color 0.2s;
}

#about p a:hover {
    border-color: var(--accent);
}

/* ── EXPERIENCE ── */
.exp-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.exp-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem 2.5rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s, transform 0.3s;
}

.exp-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent), var(--accent3));
    opacity: 0;
    transition: opacity 0.3s;
}

.exp-card:hover {
    border-color: rgba(124, 92, 252, 0.4);
    transform: translateX(4px);
}

.exp-card:hover::before {
    opacity: 1;
}

.exp-company {
    font-family: var(--sans);
    font-weight: 700;
    font-size: 1rem;
    color: var(--accent);
    margin-bottom: 0.3rem;
}

.exp-role {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.exp-period {
    font-size: 0.75rem;
    color: var(--muted);
    letter-spacing: 0.08em;
    margin-bottom: 1.2rem;
}

.exp-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.exp-list li {
    font-size: 0.88rem;
    color: #94a3b8;
    padding-left: 1.2rem;
    position: relative;
}

.exp-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

/* ── SKILLS ── */
.skills-section {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.skill-group-label {
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 1rem;
}

.skill-group-label::before {
    content: '// ';
    color: var(--accent);
}

.skill-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.chip {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 80px;
    height: 80px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    font-size: 0.72rem;
    color: var(--muted);
    transition: all 0.2s;
    cursor: default;
    text-align: center;
}

.chip-icon {
    font-size: 2rem;
    line-height: 1;
}

.chip:hover {
    border-color: var(--accent);
    background: rgba(124, 92, 252, 0.08);
    color: var(--text);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(124, 92, 252, 0.15);
}

.chip-icon {
    font-size: 1.1rem;
}

/* ── PROJECTS ── */
.deck-wrap {
    position: relative;
    height: 340px;
    perspective: 1000px;
}

.deck-card {
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 2.5rem;
    border: 1px solid rgba(124, 92, 252, 0.25);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, box-shadow 0.3s;
    transform-origin: center bottom;
    will-change: transform, opacity;
    cursor: default;
    overflow: hidden;
}

/* nebula orb inside each card */
.deck-card::before {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(55px);
    pointer-events: none;
    transition: opacity 0.4s;
}

.deck-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, transparent 60%);
    pointer-events: none;
}

.deck-card:nth-child(1) {
    background: radial-gradient(ellipse at 80% 20%, #1e0f3a 0%, #0c0918 100%);
}

.deck-card:nth-child(1)::before {
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(124, 92, 252, 0.55), rgba(56, 189, 248, 0.2), transparent 70%);
    top: -60px;
    right: -40px;
}

.deck-card:nth-child(2) {
    background: radial-gradient(ellipse at 20% 80%, #0a1a30 0%, #080e1c 100%);
}

.deck-card:nth-child(2)::before {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.5), rgba(124, 92, 252, 0.2), transparent 70%);
    bottom: -50px;
    left: -30px;
}

.deck-card:nth-child(3) {
    background: radial-gradient(ellipse at 70% 70%, #1a0e2e 0%, #0b0916 100%);
}

.deck-card:nth-child(3)::before {
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.5), rgba(236, 72, 153, 0.15), transparent 70%);
    top: -40px;
    left: 30%;
}

.deck-card:nth-child(4) {
    background: radial-gradient(ellipse at 30% 30%, #0d1828 0%, #070c18 100%);
}

.deck-card:nth-child(4)::before {
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.35), rgba(124, 92, 252, 0.3), transparent 70%);
    top: -80px;
    right: -60px;
}

.deck-card:nth-child(5) {
    background: radial-gradient(ellipse at 60% 40%, #160d2e 0%, #0a0818 100%);
}

.deck-card:nth-child(5)::before {
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.45), rgba(236, 72, 153, 0.2), transparent 70%);
    bottom: -40px;
    right: 20%;
}

/* stack positions */
.deck-card[data-pos="0"] {
    transform: translateY(0) scale(1);
    z-index: 4;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(124, 92, 252, 0.15), 0 0 1px rgba(124, 92, 252, 0.5);
    opacity: 1;
}

.deck-card[data-pos="1"] {
    transform: translateY(10px) scale(0.97);
    z-index: 3;
    opacity: 1;
}

.deck-card[data-pos="2"] {
    transform: translateY(18px) scale(0.94);
    z-index: 2;
    opacity: 1;
}

.deck-card[data-pos="3"] {
    transform: translateY(24px) scale(0.91);
    z-index: 2;
    opacity: 1;
}

.deck-card[data-pos="4"] {
    transform: translateY(30px) scale(0.88);
    z-index: 1;
    opacity: 1;
}

/* throw-back animation */
@keyframes throwBack {
    0% {
        transform: translateY(0) scale(1);
        opacity: 1;
        z-index: 10;
    }

    35% {
        transform: translateY(-70px) scale(0.93) rotate(-2deg);
        opacity: 1;
        z-index: 10;
    }

    65% {
        transform: translateY(30px) scale(0.9) rotate(1deg);
        opacity: 1;
        z-index: 0;
    }

    100% {
        transform: translateY(30px) scale(0.88);
        opacity: 1;
        z-index: 1;
    }
}

.deck-card.throwing {
    animation: throwBack 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.deck-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.deck-index {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--accent);
    letter-spacing: 0.12em;
}

.deck-tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.deck-tag {
    width: 28px;
    height: 28px;
    border: 1px solid rgba(124, 92, 252, 0.25);
    border-radius: 7px;
    background: rgba(124, 92, 252, 0.07);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.deck-tag i {
    font-size: 1rem;
}

.deck-name {
    font-family: var(--sans);
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--text);
    line-height: 1.1;
    margin-top: 1.2rem;
}

.deck-name span {
    color: var(--accent);
}

.deck-desc {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.7;
    margin-top: 0.8rem;
    flex: 1;
}

.deck-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.5rem;
}

.deck-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1rem;
    border: 1px solid rgba(124, 92, 252, 0.4);
    border-radius: 8px;
    font-size: 0.78rem;
    font-family: var(--mono);
    color: var(--accent);
    text-decoration: none;
    transition: border-color 0.2s, background 0.2s;
}

.deck-link:hover {
    border-color: var(--accent);
    background: rgba(124, 92, 252, 0.08);
}

.deck-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.deck-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.deck-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.deck-counter {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--muted);
}

.deck-counter span {
    color: var(--text);
}

/* ── CONTACT ── */
#contact .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.6rem;
}

.form-label::before {
    content: '// ';
    color: var(--accent);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 1rem 1.2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-family: var(--mono);
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.2s;
    resize: none;
}

.form-textarea {
    min-height: 120px;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--accent);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--muted);
}

.submit-btn {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-left: auto;
    padding: 0.9rem 2rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-family: var(--mono);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.05em;
}

.submit-btn:hover {
    background: var(--accent2);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(124, 92, 252, 0.35);
}

.theme-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface);
    cursor: pointer;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s, border-color 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.theme-btn:hover {
    transform: rotate(20deg) scale(1.1);
    border-color: var(--accent);
}

/* Light mode overrides */
html.light nav {
    background: rgba(244, 244, 248, 0.85);
    border-color: var(--border);
}

html.light .nav-links a:not(.active) {
    color: var(--muted);
}

html.light .nav-links a.active {
    color: var(--accent);
}

html.light .section-divider {
    background: linear-gradient(90deg, var(--accent), rgba(109, 68, 248, 0.15), transparent);
}

html.light .deck-card:nth-child(1) {
    background: linear-gradient(135deg, #ede8ff, #f4f0ff);
}

html.light .deck-card:nth-child(2) {
    background: linear-gradient(135deg, #e8f4ff, #f0f8ff);
}

html.light .deck-card:nth-child(3) {
    background: linear-gradient(135deg, #f0ebff, #f8f4ff);
}

html.light .deck-card:nth-child(4) {
    background: linear-gradient(135deg, #e8f0ff, #f0f4ff);
}

html.light .deck-card:nth-child(5) {
    background: linear-gradient(135deg, #eee8ff, #f5f0ff);
}

html.light .deck-card {
    border-color: rgba(109, 68, 248, 0.2);
    color: var(--text);
}

html.light .deck-card::before {
    opacity: 0.2;
}

html.light .deck-name,
html.light .deck-desc {
    color: var(--text);
}

html.light .deck-desc {
    opacity: 0.7;
}

html.light .hero-socials a {
    background: var(--surface);
    color: var(--muted);
}

html.light .scroll-top {
    background: var(--surface);
}

.ep-toggle-btn {
    display: none;
}

.email-preview {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    font-family: var(--mono);
    font-size: 0.82rem;
    position: sticky;
    top: 6rem;
}

.ep-topbar {
    background: #1a1d2e;
    padding: 0.75rem 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.ep-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.ep-dot:nth-child(1) {
    background: #ff5f57;
}

.ep-dot:nth-child(2) {
    background: #febc2e;
}

.ep-dot:nth-child(3) {
    background: #28c840;
}

.ep-title {
    flex: 1;
    text-align: center;
    font-size: 0.7rem;
    color: var(--muted);
    letter-spacing: 0.08em;
}

.ep-body {
    padding: 1.5rem;
}

.ep-row {
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.78rem;
}

.ep-row:last-of-type {
    border-bottom: none;
}

.ep-key {
    color: var(--accent);
    min-width: 3.5rem;
    flex-shrink: 0;
}

.ep-val {
    color: var(--muted);
    word-break: break-word;
}

.ep-val.filled {
    color: var(--text);
}

.ep-message-block {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    color: var(--muted);
    line-height: 1.7;
    min-height: 80px;
    white-space: pre-wrap;
    word-break: break-word;
}

.ep-message-block.filled {
    color: var(--text);
}

.ep-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--accent);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
}

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

/* ── FOOTER ── */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem 3rem;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--muted);
}

.scroll-top {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.scroll-top:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* ── SCROLL REVEAL ── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 768px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    #home {
        grid-template-columns: 1fr;
        padding: 6rem 1.5rem 4rem;
        gap: 2.5rem;
    }

    .hero-photo-wrap {
        order: -1;
    }

    .photo-card {
        width: 240px;
        height: 280px;
    }

    .hero-text {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        width: 100%;
    }

    .hero-name {
        font-size: clamp(2rem, 9vw, 3.5rem);
        white-space: nowrap;
        line-height: 1.1;
    }

    /* mobile: cancel the line break, keep inline */
    .hero-name-break::after {
        content: ' ';
        white-space: normal;
    }

    .hero-role {
        font-size: 0.7rem;
        letter-spacing: 0.18em;
    }

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

    .hero-socials {
        justify-content: center;
    }

    section {
        padding: 2rem 1.5rem;
    }

    footer {
        flex-direction: column;
        gap: 1rem;
    }

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

    .email-preview {
        display: none;
    }

    .email-preview.ep-visible {
        display: block;
    }

    .ep-toggle-btn {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-family: var(--mono);
        font-size: 0.78rem;
        color: var(--accent);
        background: transparent;
        border: 1px solid rgba(124, 92, 252, 0.35);
        border-radius: 8px;
        padding: 0.55rem 1rem;
        cursor: pointer;
        margin-top: 0.75rem;
        transition: background 0.2s, border-color 0.2s;
    }

    .ep-toggle-btn:hover {
        background: rgba(124, 92, 252, 0.08);
        border-color: var(--accent);
    }

    .scroll-top {
        position: fixed;
        bottom: 1.5rem;
        right: 1.5rem;
        z-index: 100;
        width: 44px;
        height: 44px;
        background: var(--surface);
        border-color: rgba(124, 92, 252, 0.4);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s, border-color 0.2s;
    }

    .scroll-top.visible-fab {
        opacity: 1;
        pointer-events: auto;
    }
}