:root {
    --matrix-green: #00ff41;
    --matrix-green-dim: #00b32d;
    --matrix-bg: #000000;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--matrix-bg);
    color: var(--matrix-green);
    font-family: 'Courier New', Consolas, monospace;
    min-height: 100vh;
}

#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.55;
}

.wrap {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}

.title {
    text-align: center;
    font-size: clamp(2.2rem, 6vw, 4rem);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin: 0 0 8px;
    color: var(--matrix-green);
    text-shadow:
        0 0 4px var(--matrix-green),
        0 0 12px var(--matrix-green),
        0 0 24px rgba(0, 255, 65, 0.6);
    animation: flicker 3.5s infinite;
}

@keyframes flicker {
    0%, 92%, 100% { opacity: 1; }
    93% { opacity: 0.6; }
    94% { opacity: 1; }
    96% { opacity: 0.4; }
    97% { opacity: 1; }
}

.subtitle {
    text-align: center;
    color: var(--matrix-green-dim);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 48px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.card {
    display: block;
    text-decoration: none;
    color: var(--matrix-green);
    background: rgba(0, 20, 5, 0.65);
    border: 1px solid var(--matrix-green-dim);
    border-radius: 6px;
    padding: 28px 16px;
    text-align: center;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--matrix-green);
    box-shadow: 0 0 18px rgba(0, 255, 65, 0.45);
}

.card .emoji {
    font-size: clamp(3.5rem, 8vw, 5.5rem);
    display: block;
    margin-bottom: 12px;
    filter: drop-shadow(0 0 10px rgba(0, 255, 65, 0.55));
}

.card .name {
    font-size: 1.05rem;
    letter-spacing: 0.05em;
    word-break: break-word;
}

.empty {
    text-align: center;
    color: var(--matrix-green-dim);
    border: 1px dashed var(--matrix-green-dim);
    border-radius: 6px;
    padding: 40px 20px;
}

.footer-link {
    display: block;
    text-align: center;
    margin-top: 60px;
}

.footer-link a {
    color: var(--matrix-green-dim);
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    opacity: 0.6;
}

.footer-link a:hover {
    opacity: 1;
}

/* ---- Admin ---- */
.panel {
    background: rgba(0, 20, 5, 0.75);
    border: 1px solid var(--matrix-green-dim);
    border-radius: 6px;
    padding: 28px;
    margin-bottom: 32px;
}

.panel h2 {
    margin-top: 0;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 1rem;
    color: var(--matrix-green);
    border-bottom: 1px solid var(--matrix-green-dim);
    padding-bottom: 10px;
}

label {
    display: block;
    margin: 16px 0 6px;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

input[type="text"],
input[type="password"],
select {
    width: 100%;
    padding: 10px 12px;
    background: #000;
    border: 1px solid var(--matrix-green-dim);
    color: var(--matrix-green);
    font-family: inherit;
    font-size: 1rem;
    border-radius: 4px;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--matrix-green);
    box-shadow: 0 0 8px rgba(0, 255, 65, 0.5);
}

button, .btn {
    margin-top: 20px;
    padding: 10px 20px;
    background: var(--matrix-green);
    color: #000;
    border: none;
    border-radius: 4px;
    font-family: inherit;
    font-weight: bold;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.15s ease;
}

button:hover, .btn:hover {
    background: #fff;
}

.btn-danger {
    background: transparent;
    color: #ff4444;
    border: 1px solid #ff4444;
}

.btn-danger:hover {
    background: #ff4444;
    color: #000;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

td, th {
    text-align: left;
    padding: 10px 8px;
    border-bottom: 1px solid rgba(0, 255, 65, 0.2);
    font-size: 0.9rem;
}

.msg {
    padding: 10px 14px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.msg.ok {
    border: 1px solid var(--matrix-green);
    color: var(--matrix-green);
}

.msg.err {
    border: 1px solid #ff4444;
    color: #ff4444;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.top-bar a {
    color: var(--matrix-green-dim);
    text-decoration: none;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

.top-bar a:hover {
    color: var(--matrix-green);
}

/* ---- PIN login ---- */
.pin-wrap {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin: 10px 0 4px;
}

.pin-box {
    width: 54px;
    height: 64px;
    padding: 0;
    text-align: center;
    font-size: 1.8rem;
    letter-spacing: 0;
}

/* ---- Emoji picker ---- */
.emoji-picker {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
    gap: 8px;
    margin-top: 10px;
}

.emoji-btn {
    margin: 0;
    padding: 8px 0;
    background: #000;
    border: 1px solid var(--matrix-green-dim);
    border-radius: 4px;
    font-size: 1.3rem;
    line-height: 1;
    cursor: pointer;
    transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.emoji-btn:hover {
    border-color: var(--matrix-green);
    transform: translateY(-2px);
}

.emoji-btn.active {
    border-color: var(--matrix-green);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.6);
}