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

:root {
    --bg: #000000;
    --surface: #141414;
    --surface-border: #222;
    --text: #e0e0e0;
    --text-muted: #555;
    --accent: #00ff41;
    --glow: rgba(0, 255, 65, 0.4);
    --glow-strong: rgba(0, 255, 65, 0.6);
    --radius: 14px;
    --red: #ef4444;
    --red-glow: rgba(239, 68, 68, 0.4);
}

html { scroll-behavior: auto; }

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
}

#tsparticles { position: fixed; inset: 0; z-index: 0; }

.page-content {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ─── HEADER ─── */
.verify-header { padding: 20px 24px; text-align: center; }

.logo {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--text);
    text-decoration: none;
}

.logo-zero {
    color: var(--accent);
    text-shadow: 0 0 20px var(--glow), 0 0 40px rgba(0, 255, 65, 0.2);
}

/* ─── MAIN ─── */
.verify-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 24px 60px;
    gap: 48px;
}

/* ─── MODE VISIBILITY ─── */
[data-mode="form"] [data-show]:not([data-show="form"]),
[data-mode="standard"] [data-show]:not([data-show="standard"]),
[data-mode="extended"] [data-show]:not([data-show="extended"]),
[data-mode="notfound"] [data-show]:not([data-show="notfound"]) {
    display: none !important;
}

/* ─── FORM ─── */
.verify-form-card {
    width: 100%;
    max-width: 440px;
    text-align: center;
}

.verify-form-card h1 {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(1.2rem, 3.5vw, 1.6rem);
    font-weight: 800;
    color: var(--text);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.verify-form-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.verify-input-group {
    display: flex;
    gap: 8px;
}

.verify-input {
    flex: 1;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 14px 16px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 10px;
    color: var(--text);
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.verify-input::placeholder {
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.verify-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 255, 65, 0.08);
}

.verify-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 14px 20px;
    background: var(--accent);
    color: #000;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    white-space: nowrap;
    transition: box-shadow 0.3s, transform 0.1s;
}

.verify-btn:hover {
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.3), 0 0 40px rgba(0, 255, 65, 0.1);
}

.verify-btn:active {
    transform: scale(0.97);
}

/* ─── SECTION ─── */
.verify-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 24px;
}

/* ─── CARDS ROW ─── */
.cards-row {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    width: 100%;
}

/* ─── CERT CARD ─── */
.cert-card {
    position: relative;
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    overflow: hidden;
    transform-style: preserve-3d;
    box-shadow: 0 0 40px rgba(0, 255, 65, 0.05);
}

.cert-card-notfound {
    border-color: rgba(239, 68, 68, 0.3) !important;
    box-shadow: 0 0 40px rgba(239, 68, 68, 0.08) !important;
}

/* ─── SAMPLE WATERMARK ─── */
.sample-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-25deg);
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.04);
    pointer-events: none;
    z-index: 4;
    white-space: nowrap;
}

/* ─── HOLOGRAPHIC SHIMMER ─── */
.cert-holo {
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    background: conic-gradient(
        from var(--holo-angle, 0deg) at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(0, 255, 65, 0.06),
        rgba(0, 200, 255, 0.05),
        rgba(140, 0, 255, 0.04),
        rgba(255, 0, 100, 0.03),
        rgba(255, 200, 0, 0.03),
        rgba(0, 255, 65, 0.06)
    );
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
    z-index: 1;
}

.cert-card:hover .cert-holo { opacity: 1; }

.cert-holo--extended {
    background: conic-gradient(
        from var(--holo-angle, 0deg) at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(0, 255, 65, 0.1),
        rgba(0, 200, 255, 0.08),
        rgba(140, 0, 255, 0.07),
        rgba(255, 0, 100, 0.05),
        rgba(255, 200, 0, 0.05),
        rgba(0, 255, 65, 0.1)
    ) !important;
}

/* ─── NOISE ─── */
.cert-noise {
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    filter: url(#noiseFilter);
    opacity: 0.04;
    pointer-events: none;
    z-index: 2;
}

/* ─── CARD INNER ─── */
.cert-inner {
    position: relative;
    z-index: 3;
    padding: 24px 28px;
}

/* ─── TOP ROW ─── */
.cert-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.cert-logo {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 800;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.cert-logo-zero {
    color: var(--accent);
    text-shadow: 0 0 10px var(--glow);
}

/* ─── TYPE BADGE ─── */
.cert-type-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 4px 8px;
    border-radius: 3px;
    border: 1px solid;
}

.cert-type-standard {
    color: var(--accent);
    border-color: rgba(0, 255, 65, 0.2);
    background: rgba(0, 255, 65, 0.05);
}

.cert-type-extended {
    color: #fbbf24;
    border-color: rgba(251, 191, 36, 0.25);
    background: rgba(251, 191, 36, 0.06);
}

/* ─── TITLE ─── */
.cert-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.55rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
    margin-bottom: 16px;
}

/* ─── PROJECT NAME ─── */
.cert-project {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.3;
}

/* ─── BOTTOM (meta left + QR right) ─── */
.cert-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.cert-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cert-meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.cert-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.45rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.cert-value {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text);
}

.cert-value-mono {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent);
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

/* ─── QR ─── */
.cert-qr {
    width: 56px;
    height: 56px;
}

.cert-qr--sample {
    background: repeating-linear-gradient(
        45deg,
        rgba(0, 255, 65, 0.06),
        rgba(0, 255, 65, 0.06) 2px,
        transparent 2px,
        transparent 6px
    );
    border-radius: 4px;
}

/* ─── NOT FOUND ─── */
.cert-title-error {
    color: var(--red);
    text-shadow: 0 0 10px var(--red-glow);
}

.cert-notfound-msg {
    padding: 16px 0;
}

.cert-notfound-msg p {
    color: var(--text-muted);
    margin-bottom: 8px;
    font-size: 0.85rem;
}

.cert-notfound-msg a {
    color: var(--accent);
    text-decoration: none;
}

.cert-notfound-msg a:hover {
    text-shadow: 0 0 8px var(--glow);
}

/* ─── HINT ─── */
.verify-hint {
    margin-top: 20px;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

.verify-hint a {
    color: var(--accent);
    text-decoration: none;
}

/* ─── FOOTER ─── */
.verify-footer {
    padding: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.8rem;
    color: var(--text-muted);
    gap: 32px;
}

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

.verify-footer a:hover { color: var(--accent); }

.legal-nav { display: flex; gap: 16px; }

/* ─── MOBILE ─── */
@media (max-width: 640px) {
    .verify-input-group {
        flex-direction: column;
    }
    .cert-inner { padding: 20px; }
}