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

header {
    background: linear-gradient(135deg, #050A14 0%, #0D1F3C 100%);
    border-bottom: 2px solid var(--electric);
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    box-shadow: 0 4px 30px rgba(0, 168, 255, .25);
}

.logo {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--white);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.header-tag {
    font-size: .8rem;
    color: var(--cyan);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 600;
}

.hero {
    text-align: center;
    padding: 4rem 2rem 3rem;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 168, 255, .04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 168, 255, .04) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.hero h1 {
    font-family: 'Orbitron', monospace;
    font-size: clamp(1.6rem, 4vw, 3rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1.2;
    position: relative;
}


.hero p {
    margin-top: .8rem;
    font-size: 1.1rem;
    color: var(--muted);
    letter-spacing: 1px;
    position: relative;
}

.hero-badge {
    display: inline-block;
    margin-top: 1rem;
    padding: .3rem 1.2rem;
    border: 1px solid var(--cyan);
    border-radius: 2px;
    color: var(--cyan);
    font-size: .75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 600;
    position: relative;
}

.gallery-section {
    padding: 3rem 2rem 5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-family: 'Orbitron', monospace;
    font-size: 1rem;
    color: var(--electric);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--electric), transparent);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    transition: border-color .3s, box-shadow .3s;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--electric), transparent);
    opacity: 0;
    transition: opacity .3s;
}


.card-number {
    position: absolute;
    top: .6rem;
    left: .6rem;
    font-family: 'Orbitron', monospace;
    font-size: .65rem;
    color: var(--electric);
    background: rgba(0, 0, 0, .6);
    padding: .2rem .5rem;
    border: 1px solid var(--border);
    z-index: 2;
    letter-spacing: 2px;
}

.effect-badge {
    position: absolute;
    top: .6rem;
    right: .6rem;
    font-size: .6rem;
    color: var(--cyan);
    background: rgba(0, 0, 0, .7);
    padding: .2rem .5rem;
    border: 1px solid var(--cyan);
    z-index: 2;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 700;
}

.card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s;
    display: block;
}

.card:hover .card-img-wrap img {
    transform: scale(1.06);
}

.card-body {
    padding: 1rem 1.1rem 1.2rem;
}

.card-category {
    font-size: .65rem;
    color: var(--muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: .3rem;
}

.card-name {
    font-family: 'Orbitron', monospace;
    font-size: .95rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: .5rem;
    line-height: 1.3;
}

.card-desc {
    font-size: .88rem;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: .8rem;
}

.card-price {
    font-family: 'Orbitron', monospace;
    font-size: 1.1rem;
    color: var(--gold);
    font-weight: 700;
    margin-bottom: .8rem;
}

.card-price span {
    font-size: .7rem;
    color: var(--muted);
    font-family: 'Rajdhani', sans-serif;
    font-weight: 400;
    margin-left: .3rem;
}

.card-specs li {
    font-size: .78rem;
    color: var(--muted);
    padding: .2rem 0;
    padding-left: .9rem;
    position: relative;
    line-height: 1.4;
}

.card-specs li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--electric);
    font-size: .6rem;
}

.btn {
    display: inline-block;
    padding: .5rem 1rem;
    border: 1px solid;
    border-radius: 2px;
    font-family: 'Rajdhani', sans-serif;
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: background .2s, color .2s, box-shadow .2s;
    margin: .2rem .2rem 0 0;
    background: transparent;
    user-select: none;
}


.btn-primary:hover {
    background: var(--electric);
    color: #000;
    box-shadow: 0 0 15px rgba(0, 168, 255, .4);
}



.btn-danger {
    border-color: var(--danger);
    color: var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: #fff;
}

.btn-gold {
    border-color: var(--gold);
    color: var(--gold);
}

.btn-gold:hover {
    background: var(--gold);
    color: #000;
}

.btn-sm {
    padding: .35rem .7rem;
    font-size: .72rem;
}

.overlay-msg {
    position: absolute;
    inset: 0;
    background: rgba(10, 15, 30, .92);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: .5rem;
    z-index: 10;
    font-family: 'Orbitron', monospace;
    font-size: .85rem;
    color: var(--electric);
    text-align: center;
    padding: 1rem;
}

.overlay-msg .icon {
    font-size: 2rem;
}

.effect-demo-area {
    min-height: 60px;
    background: rgba(0, 168, 255, .04);
    border: 1px dashed var(--border);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: .8rem;
    font-size: .8rem;
    color: var(--muted);
    letter-spacing: 1px;
    overflow: hidden;
    padding: .5rem;
}

#card1 .focus-input {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--white);
    padding: .4rem .7rem;
    font-family: 'Rajdhani', sans-serif;
    font-size: .85rem;
    border-radius: 2px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    margin-bottom: .5rem;
}

#card1 .focus-input:focus {
    border-color: var(--electric);
    box-shadow: 0 0 0 2px rgba(0, 168, 255, .2);
}

#card1 .focus-indicator {
    display: none;
    background: rgba(0, 168, 255, .1);
    border: 1px solid var(--electric);
    color: var(--electric);
    font-size: .75rem;
    padding: .3rem .6rem;
    border-radius: 2px;
    text-align: center;
    width: 100%;
    letter-spacing: 1px;
}

#card4 .fade-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 15, 30, .95);
    display: none;
    z-index: 8;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: .7rem;
    font-family: 'Orbitron', monospace;
    color: var(--danger);
    text-align: center;
    font-size: .8rem;
    padding: 1rem;
}

#card8 .anim-bar-wrap {
    width: 100%;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--border);
    border-radius: 2px;
    height: 14px;
    margin-bottom: .8rem;
    overflow: hidden;
    position: relative;
}

#card8 .anim-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--electric), var(--cyan));
    width: 0;
    border-radius: 2px;
}

#card10 .slide-panel {
    background: rgba(0, 168, 255, .06);
    border-top: 1px solid var(--electric);
    padding: .8rem 1rem;
    font-size: .78rem;
    color: var(--text);
    line-height: 1.6;
}

#card11 .hover-zone {
    background: rgba(0, 255, 209, .04);
    border: 1px dashed var(--cyan);
    border-radius: 2px;
    padding: .6rem;
    text-align: center;
    font-size: .8rem;
    color: var(--muted);
    transition: background .2s;
    margin-bottom: .8rem;
    cursor: default;
}

#card11 .hover-zone.active-hover {
    background: rgba(0, 255, 209, .15);
    color: var(--cyan);
    border-color: var(--cyan);
}

#card13 .dbl-zone {
    background: rgba(255, 209, 102, .04);
    border: 1px dashed var(--gold);
    border-radius: 2px;
    padding: .8rem;
    text-align: center;
    font-size: .82rem;
    color: var(--muted);
    cursor: pointer;
    margin-bottom: .8rem;
    user-select: none;
    transition: background .2s;
}

#card13 .dbl-zone.unlocked {
    background: rgba(255, 209, 102, .15);
    color: var(--gold);
}

footer {
    background: #050A14;
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 1.5rem;
    font-size: .78rem;
    color: var(--muted);
    letter-spacing: 1px;
}

footer strong {
    color: var(--electric);
    font-family: 'Orbitron', monospace;
    font-size: .7rem;
}

@media (max-width: 600px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

:root {
    --bg: #f4f6f9;
    --panel: #ffffff;
    --card: #ffffff;
    --border: #dbe2ea;
    --electric: #2563eb;
    --cyan: #3b82f6;
    --text: #334155;
    --muted: #64748b;
    --white: #0f172a;
    --danger: #ef4444;
    --gold: #f59e0b;
}

body {
    background: var(--bg);
    font-family: 'Segoe UI', sans-serif;
    color: var(--text);
}


header {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(0, 0, 0, .06);
}

.logo {
    font-family: 'Segoe UI', sans-serif;
    color: #1e293b;
    font-weight: 700;
    letter-spacing: 1px;
}

.header-tag {
    color: var(--muted);
    letter-spacing: 1px;
}


.hero {
    background: linear-gradient(180deg, #ffffff, #f8fafc);
}

.hero::before {
    display: none;
}

.hero h1 {
    font-family: 'Segoe UI', sans-serif;
    color: #0f172a;
    text-shadow: none;
}

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

.hero-badge {
    background: #eff6ff;
    color: var(--electric);
    border: 1px solid #bfdbfe;
    border-radius: 30px;
    letter-spacing: 1px;
}


.section-title {
    font-family: 'Segoe UI', sans-serif;
    color: #1e293b;
    letter-spacing: 1px;
    font-weight: 700;
}

.section-title::after {
    background: linear-gradient(to right, #cbd5e1, transparent);
}


.gallery-grid {
    gap: 2rem;
}


.card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, .05);
}

.card::before {
    display: none;
}

.card:hover {
    transform: translateY(-5px);
    border-color: #bfdbfe;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .12);
}

.card-number {
    background: white;
    color: var(--electric);
    border: 1px solid #dbeafe;
    border-radius: 8px;
    font-family: 'Segoe UI', sans-serif;
}

.effect-badge {
    background: #eff6ff;
    color: var(--electric);
    border: 1px solid #bfdbfe;
    border-radius: 8px;
}

.card-img-wrap {
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
}

.card-name {
    font-family: 'Segoe UI', sans-serif;
    color: #0f172a;
}

.card-category {
    color: #94a3b8;
}

.card-desc {
    color: #475569;
}

.card-price {
    color: #f59e0b;
    font-family: 'Segoe UI', sans-serif;
}




.btn-primary {
    background: #2563eb;
    border-color: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    color: white;
}


.btn-danger {
    background: #ef4444;
    border-color: #ef4444;
    color: white;
}




.effect-demo-area {
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    border-radius: 10px;
}


#card1 .focus-input {
    background: white;
    color: #0f172a;
    border-radius: 8px;
}


.overlay-msg,
#card4 .fade-overlay {
    background: rgba(255, 255, 255, .96);
    color: #2563eb;
    font-family: 'Segoe UI', sans-serif;
}


#card8 .anim-bar-wrap {
    background: #e2e8f0;
    border-radius: 10px;
}

#card8 .anim-bar {
    background: linear-gradient(90deg, #2563eb, #60a5fa);
}


#card10 .slide-panel {
    background: #eff6ff;
    border-top: 1px solid #93c5fd;
}


#card11 .hover-zone {
    background: #f8fafc;
    border: 1px dashed #93c5fd;
    border-radius: 10px;
}

#card11 .hover-zone.active-hover {
    background: #dbeafe;
    color: #2563eb;
}


#card13 .dbl-zone {
    background: #fffbeb;
    border: 1px dashed #f59e0b;
    border-radius: 10px;
}

#card13 .dbl-zone.unlocked {
    background: #fef3c7;
}


footer {
    background: white;
    border-top: 1px solid #e2e8f0;
    color: #64748b;
}