/* ══════════════════════════════════════════════
   THEME SYSTEM — Light & Dark with Ocean Blue
   ══════════════════════════════════════════════ */

:root {
    /* Ocean Blue Primary Palette */
    --ocean:        #0077b6;
    --ocean-light:  #00b4d8;
    --ocean-dark:   #023e8a;
    --sky:          #48cae4;
    --emerald:      #10b981;
    --amber:        #f59e0b;

    /* Fonts */
    --outfit:       'Outfit', sans-serif;
    --inter:        'Inter', sans-serif;
}

/* ── Dark Theme (default) ── */
[data-theme="dark"] {
    --bg:           #0a1628;
    --bg-alt:       #0f1f3a;
    --card-bg:      rgba(15, 31, 58, 0.75);
    --card-border:  rgba(255,255,255,0.08);
    --card-hover:   rgba(0,119,182,0.4);
    --text:         #f0f9ff;
    --text-strong:  #ffffff;
    --muted:        #94a3b8;
    --loader-bg:    #0a1628;
    --blob-opacity: 0.3;
    --tag-alpha:    0.09;
    --cta-glow:     rgba(0,119,182,.18);
    --btn-sec-bg:   rgba(255,255,255,.06);
    --btn-sec-border: rgba(255,255,255,.08);
    --btn-sec-hover: rgba(255,255,255,.1);
    --lightbox-bg:  rgba(0,0,0,.82);
    --lb-close-bg:  rgba(30,30,50,.9);
}

/* ── Light Theme ── */
[data-theme="light"] {
    --bg:           #f0f9ff;
    --bg-alt:       #e0f2fe;
    --card-bg:      rgba(255, 255, 255, 0.85);
    --card-border:  rgba(0,119,182,0.1);
    --card-hover:   rgba(0,119,182,0.25);
    --text:         #1e293b;
    --text-strong:  #0c1524;
    --muted:        #64748b;
    --loader-bg:    #f0f9ff;
    --blob-opacity: 0.15;
    --tag-alpha:    0.08;
    --cta-glow:     rgba(0,119,182,.08);
    --btn-sec-bg:   rgba(0,0,0,.04);
    --btn-sec-border: rgba(0,119,182,.15);
    --btn-sec-hover: rgba(0,0,0,.07);
    --lightbox-bg:  rgba(255,255,255,.88);
    --lb-close-bg:  rgba(0,0,0,.7);
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--inter);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.65;
    transition: background .4s ease, color .4s ease;
}

/* ── Theme Toggle Button ── */
.theme-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text);
    cursor: pointer;
    transition: all .3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.theme-toggle:hover {
    border-color: var(--ocean);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,119,182,.2);
}
.theme-toggle svg {
    width: 20px;
    height: 20px;
    transition: transform .3s ease;
}
.theme-toggle:hover svg { transform: rotate(20deg); }
.theme-toggle .icon-sun,
.theme-toggle .icon-moon { position: absolute; transition: opacity .3s, transform .3s; }

[data-theme="dark"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0); }
[data-theme="dark"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(-90deg); }
[data-theme="light"] .theme-toggle .icon-sun { opacity: 0; transform: rotate(90deg); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0); }

/* ── Background blobs ── */
.blob {
    position: fixed;
    width: 600px; height: 600px;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
    opacity: var(--blob-opacity);
    transition: opacity .4s ease;
}
.blob-1 { background: radial-gradient(circle, var(--ocean) 0%, transparent 70%); top:-160px; right:-160px; }
.blob-2 { background: radial-gradient(circle, var(--sky) 0%, transparent 70%); bottom:-160px; left:-160px; }

/* ── Layout ── */
.wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

/* ── Header ── */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    border-bottom: 1px solid var(--card-border);
    gap: 1rem;
}
.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.header-right {
    display: flex;
    align-items: center;
    gap: .75rem;
}
.logo {
    font-family: var(--outfit);
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -0.04em;
    color: var(--text-strong);
}
.logo em { color: var(--ocean); font-style: normal; }

.env-pill {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .3rem .85rem;
    border-radius: 9999px;
    font-family: var(--outfit);
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--muted);
}
.env-pill::before {
    content:'';
    width: 7px; height: 7px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%,100% { opacity:1; transform:scale(1); }
    50%      { opacity:.5; transform:scale(.8); }
}
.env-pill.local::before    { background: var(--sky);     box-shadow: 0 0 8px var(--sky);     }
.env-pill.prod::before     { background: var(--emerald); box-shadow: 0 0 8px var(--emerald); }

/* ── Hero ── */
.hero {
    display: flex;
    flex-direction: column-reverse;
    gap: 3rem;
    padding: 5.5rem 0 2.5rem;
}

@media (min-width: 768px) {
    .hero {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 4rem;
    }
    .hero-content { flex: 1; }
    .hero-profile { flex-shrink: 0; }
}

.hero-profile {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-frame {
    position: relative;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    padding: 6px;
    background: linear-gradient(135deg, var(--ocean) 0%, var(--sky) 100%);
    box-shadow: 0 10px 30px rgba(0,119,182,0.25), 0 0 0 1px rgba(255,255,255,0.05);
    animation: float 6s ease-in-out infinite;
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    background: var(--bg);
    border: 3px solid var(--bg);
    display: block;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-role {
    font-family: var(--outfit);
    font-size: .9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .16em;
    color: var(--ocean);
    margin-bottom: .85rem;
}

.hero-name {
    font-family: var(--outfit);
    font-weight: 800;
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text-strong);
    margin-bottom: 1.4rem;
    white-space: nowrap;
}
.hero-degree {
    font-weight: 500;
    font-size: .65em;
    color: var(--muted);
}

/* ── Motto ── */
.motto {
    display: inline-block;
    margin-bottom: 2.2rem;
    padding: 1rem 1.4rem;
    border-left: 3px solid var(--ocean);
    border-radius: 0 10px 10px 0;
    background: rgba(0,119,182,.07);
    max-width: 680px;
}
.motto-text {
    font-family: var(--outfit);
    font-size: 1.1rem;
    font-weight: 500;
    font-style: italic;
    color: var(--ocean-light);
    line-height: 1.55;
}
[data-theme="light"] .motto-text { color: var(--ocean-dark); }
.motto-sub {
    margin-top: .4rem;
    font-size: .8rem;
    color: var(--muted);
    font-style: normal;
}

/* ── Social links ── */
.socials { display: flex; gap: .75rem; }
.soc-btn {
    display: inline-flex;
    align-items: center; justify-content: center;
    width: 42px; height: 42px;
    border-radius: 10px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text);
    text-decoration: none;
    transition: all .3s ease;
}
.soc-btn:hover {
    border-color: var(--ocean);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,119,182,.2);
}
.soc-btn svg { width:19px; height:19px; fill:currentColor; }

/* ── Section ── */
.section { padding: 4rem 0 5rem; }
.section-title {
    font-family: var(--outfit);
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: -.025em;
    margin-bottom: 2.5rem;
    color: var(--text-strong);
}
.section-title em { font-style: normal; color: var(--ocean); }

/* ── Section Sub ── */
.section-sub {
    margin-top: -1.8rem;
    margin-bottom: 2.2rem;
    font-size: .95rem;
    color: var(--muted);
}

/* ── Certificate List (compact 2-col grid) ── */
.cert-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: .55rem;
}
@media (min-width: 640px) {
    .cert-list { grid-template-columns: repeat(2, 1fr); }
}

.cert-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .75rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
    min-height: 0;
    cursor: pointer;
}
.cert-item:hover {
    transform: translateX(3px);
    border-color: var(--card-hover);
    background: var(--bg-alt);
}

.cert-info {
    display: flex;
    flex-direction: column;
    gap: .15rem;
    flex: 1;
    min-width: 0;
}
.cert-issuer {
    font-family: var(--outfit);
    font-size: .65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: .35rem;
}
.issuer-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--ocean);
    flex-shrink: 0;
}
.cert-title {
    font-family: var(--outfit);
    font-weight: 600;
    font-size: .88rem;
    line-height: 1.35;
    color: var(--text-strong);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color .2s ease;
}
.cert-meta {
    display: flex;
    align-items: center;
    gap: .65rem;
    flex-shrink: 0;
}
.cert-arrow { color: var(--muted); transition: color .2s, transform .2s; font-size: .95rem; }
.cert-item:hover .cert-arrow { color: var(--ocean); transform: translateX(3px); }

/* ── Mini Book Shelf ── */
.book-shelf {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: .8rem;
    padding: 1.5rem 0;
}
@media (max-width: 768px) {
    .book-shelf {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem .7rem;
    }
}
@media (max-width: 480px) {
    .book-shelf {
        grid-template-columns: repeat(4, 1fr);
        gap: .8rem .5rem;
    }
}

.mini-book {
    --book-color: var(--ocean);
    position: relative;
    width: 100%;
    aspect-ratio: 2.5 / 3.8;
    perspective: 600px;
    cursor: pointer;
}

.book-cover {
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, var(--book-color) 0%, color-mix(in srgb, var(--book-color) 70%, #000) 100%);
    border-radius: 3px 8px 8px 3px;
    box-shadow:
        inset 0 0 20px rgba(0,0,0,.2),
        0 4px 12px rgba(0,0,0,.3),
        0 1px 4px rgba(0,0,0,.2);
    transform-origin: left center;
    transition: transform .4s cubic-bezier(.23,1,.32,1), box-shadow .4s ease;
    z-index: 2;
    overflow: hidden;
}

.book-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        rgba(255,255,255,0) 0%,
        rgba(255,255,255,.08) 3%,
        rgba(255,255,255,0) 5%,
        rgba(255,255,255,.03) 50%,
        rgba(255,255,255,0) 100%
    );
    pointer-events: none;
}

.book-cover-inner {
    position: absolute;
    inset: 0;
    padding: .7rem .5rem .5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: .15rem;
}

.book-tag {
    position: absolute;
    top: .4rem;
    left: .4rem;
    font-family: var(--outfit);
    font-size: .45rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: rgba(255,255,255,.85);
    background: rgba(0,0,0,.3);
    padding: .1rem .35rem;
    border-radius: 3px;
    backdrop-filter: blur(4px);
}

.book-title {
    font-family: var(--outfit);
    font-size: .62rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0,0,0,.4);
}

.book-author {
    font-family: var(--inter);
    font-size: .48rem;
    color: rgba(255,255,255,.65);
    font-weight: 400;
}

.book-spine {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 10px;
    background: linear-gradient(90deg, 
        color-mix(in srgb, var(--book-color) 50%, #000) 0%,
        color-mix(in srgb, var(--book-color) 75%, #000) 60%,
        var(--book-color) 100%
    );
    border-radius: 3px 0 0 3px;
    z-index: 3;
    box-shadow: inset -1px 0 2px rgba(0,0,0,.3);
}

.book-pages {
    position: absolute;
    top: 3px;
    right: 3px;
    bottom: 3px;
    left: 10px;
    background: repeating-linear-gradient(
        90deg,
        #f8f8f0 0px,
        #f8f8f0 1px,
        #eee8d5 1px,
        #eee8d5 2px
    );
    border-radius: 0 6px 6px 0;
    z-index: 1;
    box-shadow: inset 0 0 4px rgba(0,0,0,.1);
}

/* Hover — book opens slightly */
.mini-book:hover .book-cover {
    transform: rotateY(-20deg);
    box-shadow:
        inset 0 0 20px rgba(0,0,0,.2),
        0 8px 20px rgba(0,0,0,.35),
        3px 3px 12px rgba(0,0,0,.2);
}

.mini-book:hover .book-spine {
    box-shadow: inset -1px 0 2px rgba(0,0,0,.3), 2px 0 6px rgba(0,0,0,.15);
}

/* ── Tags ── */
.tag {
    font-size: .63rem;
    font-weight: 600;
    padding: .18rem .55rem;
    border-radius: 5px;
    letter-spacing: .03em;
    white-space: nowrap;
}
.tag-blue     { color: var(--ocean);   background: rgba(0,119,182, var(--tag-alpha));  border: 1px solid rgba(0,119,182,.2); }
.tag-indigo   { color: var(--ocean-dark); background: rgba(2,62,138, var(--tag-alpha)); border: 1px solid rgba(2,62,138,.2); }
.tag-emerald  { color: var(--emerald); background: rgba(16,185,129, var(--tag-alpha)); border: 1px solid rgba(16,185,129,.2); }
.tag-amber    { color: var(--amber);   background: rgba(245,158,11, var(--tag-alpha)); border: 1px solid rgba(245,158,11,.2); }

/* ── About Me ── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.about-text p {
    font-size: 1.05rem;
    color: var(--muted);
    line-height: 1.8;
}
.about-text strong { color: var(--text-strong); font-weight: 600; }
.about-tags { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: .5rem; }

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    min-width: 240px;
}
.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .3rem;
    padding: 1.4rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    text-align: center;
    transition: border-color .3s ease, box-shadow .3s ease;
}
.stat-card:hover {
    border-color: var(--card-hover);
    box-shadow: 0 8px 24px rgba(0,119,182,.12);
}
.stat-number {
    font-family: var(--outfit);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-strong);
    line-height: 1;
}
.stat-number em { font-style: normal; color: var(--ocean); }
.stat-label {
    font-size: .72rem;
    font-weight: 500;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-top: .2rem;
}

/* ── Real Work / Client Projects ── */
.work-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.8rem;
}
@media (min-width: 768px) {
    .work-grid { grid-template-columns: repeat(2, 1fr); }
}

.work-card {
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    overflow: hidden;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    text-decoration: none;
    color: var(--text);
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.work-card:hover {
    transform: translateY(-6px);
    border-color: var(--card-hover);
    box-shadow: 0 24px 50px rgba(0,0,0,.25), 0 0 20px rgba(0,119,182,.1);
}

.work-info {
    padding: 1.5rem 1.6rem 1.6rem;
    display: flex;
    flex-direction: column;
    gap: .7rem;
}
.work-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.work-type {
    font-family: var(--outfit);
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: .4rem;
}
.work-ext-icon {
    font-size: 1.1rem;
    color: var(--muted);
    transition: color .25s ease, transform .25s ease;
}
.work-card:hover .work-ext-icon {
    color: var(--ocean);
    transform: translate(2px, -2px);
}
.work-title {
    font-family: var(--outfit);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-strong);
    margin: 0;
}
.work-desc {
    font-size: .9rem;
    color: var(--muted);
    line-height: 1.65;
}
.work-tags { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .2rem; }

/* ── About Section & Feature Cards ── */
.about-section {
    position: relative;
    padding: 5rem 0 5.5rem;
}

.about-intro {
    margin-bottom: 3rem;
}

.about-intro p {
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1.85;
    padding: 1.8rem 2rem;
    border-left: 3px solid var(--ocean);
    background: rgba(0, 119, 182, 0.06);
    border-radius: 0 12px 12px 0;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.8rem;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.feature-card {
    --feature-color: #0077b6;
    position: relative;
    padding: 1.8rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: transform .3s cubic-bezier(.23,1,.32,1), 
                border-color .3s ease,
                box-shadow .3s ease,
                background .3s ease;
    cursor: pointer;
}

/* Gradient background on hover */
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(var(--feature-color), 0.05) 0%,
        rgba(var(--feature-color), 0.02) 100%
    );
    pointer-events: none;
    border-radius: 16px;
    opacity: 0;
    transition: opacity .3s ease;
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--feature-color);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.2),
        0 0 1px rgba(var(--feature-color), 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    background: linear-gradient(
        135deg,
        rgba(var(--feature-color), 0.08),
        rgba(var(--feature-color), 0.02)
    );
}

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

.feature-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.3rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(var(--feature-color), 0.2);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: linear-gradient(
        135deg,
        rgba(var(--feature-color), 0.15),
        rgba(var(--feature-color), 0.08)
    );
    font-size: 1.8rem;
    transition: transform .3s ease;
}

.feature-card:hover .feature-icon {
    transform: rotate(10deg) scale(1.1);
}

.feature-title {
    font-family: var(--outfit);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-strong);
    letter-spacing: -.01em;
    margin: 0;
}

.feature-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: .8rem;
    position: relative;
    z-index: 1;
}

.feature-items li {
    font-size: .95rem;
    color: var(--text);
    line-height: 1.6;
    padding-left: .5rem;
    transition: color .25s ease, transform .25s ease;
}

.feature-items li:hover {
    color: var(--feature-color);
    transform: translateX(4px);
}

/* Color-coded feature cards */
.feature-card[style*="--feature-color: #0077b6"] {
    --feature-rgb: 0, 119, 182;
}

.feature-card[style*="--feature-color: #10b981"] {
    --feature-rgb: 16, 185, 129;
}

.feature-card[style*="--feature-color: #f59e0b"] {
    --feature-rgb: 245, 158, 11;
}

.feature-card[style*="--feature-color: #48cae4"] {
    --feature-rgb: 72, 202, 228;
}

.feature-card[style*="--feature-color: #7c3aed"] {
    --feature-rgb: 124, 58, 237;
}

.feature-card[style*="--feature-color: #ec4899"] {
    --feature-rgb: 236, 72, 153;
}

/* ── CTA Section ── */
.cta-section {
    position: relative;
    margin: 2rem 0 3.5rem;
    padding: 4rem 3rem;
    border-radius: 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    text-align: center;
    overflow: hidden;
}
.cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(ellipse, var(--cta-glow) 0%, transparent 70%);
    pointer-events: none;
}
.cta-eyebrow {
    font-family: var(--outfit);
    font-size: .82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--ocean);
    margin-bottom: 1rem;
}
.cta-heading {
    font-family: var(--outfit);
    font-size: clamp(1.6rem, 3.5vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -.025em;
    color: var(--text-strong);
    line-height: 1.25;
    margin-bottom: 1.1rem;
}
.cta-heading em { font-style: normal; color: var(--ocean); }
.cta-sub {
    font-size: 1rem;
    color: var(--muted);
    max-width: 560px;
    margin: 0 auto 2.2rem;
    line-height: 1.75;
}
.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}
.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    padding: .75rem 1.8rem;
    border-radius: 12px;
    font-family: var(--outfit);
    font-size: .95rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.cta-btn:hover { transform: translateY(-3px); }

.cta-btn-primary {
    background: linear-gradient(135deg, var(--ocean) 0%, var(--ocean-light) 100%);
    color: #fff;
    box-shadow: 0 6px 20px rgba(0,119,182,.35);
}
.cta-btn-primary:hover {
    box-shadow: 0 12px 30px rgba(0,119,182,.5);
}
.cta-btn-secondary {
    background: var(--btn-sec-bg);
    color: var(--text);
    border: 1px solid var(--btn-sec-border);
}
.cta-btn-secondary:hover {
    background: var(--btn-sec-hover);
    border-color: var(--ocean);
    box-shadow: 0 8px 20px rgba(0,119,182,.12);
}

/* ── Footer ── */
footer {
    border-top: 1px solid var(--card-border);
    padding: 2.5rem 0;
    text-align: center;
}
.footer-copy { font-size: .85rem; color: var(--muted); }
.footer-meta { margin-top: .4rem; font-size: .72rem; color: var(--muted); opacity: .55; }

/* ── Lightbox ── */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    pointer-events: none;
    transition: background .35s ease, backdrop-filter .35s ease;
}
.lightbox.active {
    background: var(--lightbox-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    pointer-events: all;
}
.lightbox-inner {
    position: relative;
    max-width: min(90vw, 860px);
    max-height: 88vh;
    transform: scale(0.84) translateY(24px);
    opacity: 0;
    transition: transform .38s cubic-bezier(.22,1,.36,1), opacity .3s ease;
}
.lightbox.active .lightbox-inner {
    transform: scale(1) translateY(0);
    opacity: 1;
}
.lightbox-inner img {
    display: block;
    max-width: 100%;
    max-height: 88vh;
    border-radius: 14px;
    box-shadow: 0 30px 80px rgba(0,0,0,.4), 0 0 0 1px var(--card-border);
    object-fit: contain;
}
.lightbox-close {
    position: absolute;
    top: -14px;
    right: -14px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--lb-close-bg);
    border: 1px solid rgba(255,255,255,.15);
    color: #fff;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, transform .2s;
    z-index: 1;
}
.lightbox-close:hover {
    background: var(--ocean);
    transform: scale(1.1);
}

/* ── Hero Subtitle ── */
.hero-subtitle {
    font-size: 1.15rem;
    font-weight: 300;
    margin-bottom: 1.8rem;
    white-space: nowrap;
    overflow: hidden;
    background: linear-gradient(
        90deg,
        var(--muted) 0%,
        var(--muted) 25%,
        var(--ocean) 45%,
        var(--sky) 55%,
        var(--muted) 75%,
        var(--muted) 100%
    );
    background-size: 300% 100%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 5s ease-in-out infinite;
}
@keyframes shimmer {
    0%   { background-position: 100% 50%; }
    100% { background-position: -100% 50%; }
}

/* ── Loader ── */
.loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--loader-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity .55s ease, visibility .55s ease;
}
.loader.hidden {
    opacity: 0;
    visibility: hidden;
}
.loader-content { text-align: center; }
.loader-logo {
    font-family: var(--outfit);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-strong);
    letter-spacing: -0.03em;
    animation: loaderPulse 1.2s ease-in-out infinite;
}
.loader-logo em { color: var(--ocean); font-style: normal; }
.loader-bar {
    margin: .9rem auto 0;
    width: 130px;
    height: 3px;
    background: rgba(255,255,255,0.08);
    border-radius: 4px;
    overflow: hidden;
}
.loader-bar span {
    display: block;
    height: 100%;
    width: 35%;
    background: linear-gradient(90deg, var(--ocean), var(--sky));
    border-radius: 4px;
    animation: loaderSlide 1s ease-in-out infinite;
}
@keyframes loaderPulse {
    0%,100% { opacity:1; transform:scale(1); }
    50%     { opacity:.65; transform:scale(.97); }
}
@keyframes loaderSlide {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(390%); }
}

/* ── Reveal animation ── */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s cubic-bezier(.23,1,.32,1), transform .6s cubic-bezier(.23,1,.32,1);
    transition-delay: var(--delay, 0s);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .hero-name    { font-size: 1.4rem; }
    .hero         { padding: 3.5rem 0 2rem; }
    .profile-frame { width: 160px; height: 160px; }
    .cta-section  { padding: 3rem 1.5rem; }
}

/* ── Smooth transitions for theme switch ── */
.card-bg,
.stat-card,
.cert-item,
.work-card,
.cta-section,
.soc-btn,
.env-pill,
.theme-toggle {
    transition: background .4s ease, border-color .4s ease, color .4s ease, transform .3s ease, box-shadow .3s ease;
}