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

:root {
    --bg: #0a0a0a;
    --surface: #111111;
    --border: #222222;
    --accent: #e8ff47;
    --accent-dim: rgba(232, 255, 71, 0.12);
    --text: #f0f0f0;
    --muted: #666;
    --success: #4fffb0;
    --error: #ff5f5f;
    --font-display: 'Syne', sans-serif;
    --font-mono: 'DM Mono', monospace;
}

/* ── Base ── */
body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-display);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    overflow-x: hidden;
}

    /* Subtle grid background */
    body::before {
        content: '';
        position: fixed;
        inset: 0;
        background-image: linear-gradient(rgba(232,255,71,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(232,255,71,0.03) 1px, transparent 1px);
        background-size: 40px 40px;
        pointer-events: none;
        z-index: 0;
    }

/* ── Layout ── */
.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 560px;
}

/* ── Header ── */
.header {
    margin-bottom: 3rem;
    animation: fadeDown 0.6s ease both;
}

.logo-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.logo-dot {
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.logo-text {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    font-family: var(--font-mono);
}

h1 {
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
}

    h1 span {
        color: var(--accent);
    }

.subtitle {
    margin-top: 0.75rem;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

/* ── Card ── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    animation: fadeUp 0.6s 0.15s ease both;
}

/* ── Form Fields ── */
.field {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    font-family: var(--font-mono);
    margin-bottom: 0.5rem;
}

input {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.85rem 1rem;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

    input:focus {
        border-color: var(--accent);
        box-shadow: 0 0 0 3px var(--accent-dim);
    }

    input::placeholder {
        color: #333;
    }

/* ── Buttons ── */
button {
    width: 100%;
    background: var(--accent);
    color: #0a0a0a;
    border: none;
    border-radius: 8px;
    padding: 1rem;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    cursor: pointer;
    transition: transform 0.15s, opacity 0.15s;
}

    button:hover {
        opacity: 0.9;
        transform: translateY(-1px);
    }

    button:active {
        transform: translateY(0);
    }

    button:disabled {
        opacity: 0.5;
        cursor: not-allowed;
        transform: none;
    }

    /* Outlined variant for the local test button */
    button.btn-outline {
        background: transparent;
        color: var(--accent);
        border: 1px solid var(--accent);
        margin-top: 0;
    }

.btn-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* ── Spinner ── */
.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 0, 0, 0.3);
    border-top-color: #0a0a0a;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: none;
}

/* ── Result Box ── */
.result {
    margin-top: 1.5rem;
    border-radius: 10px;
    padding: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.6;
    display: none;
    animation: fadeUp 0.3s ease both;
}

    .result.success {
        background: rgba(79, 255, 176, 0.07);
        border: 1px solid rgba(79, 255, 176, 0.25);
        display: block;
    }

    .result.error {
        background: rgba(255, 95, 95, 0.07);
        border: 1px solid rgba(255, 95, 95, 0.25);
        display: block;
    }

.result-label {
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
    font-weight: 500;
}

.result.success .result-label {
    color: var(--success);
}

.result.error .result-label {
    color: var(--error);
}

.result-body {
    color: var(--text);
    white-space: pre-wrap;
    word-break: break-all;
}

/* ── Divider ── */
.divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
    color: var(--border);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

    .divider::before,
    .divider::after {
        content: '';
        flex: 1;
        height: 1px;
        background: var(--border);
    }

/* ── Footer ── */
.footer {
    margin-top: 2rem;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: #333;
    animation: fadeUp 0.6s 0.3s ease both;
}

/* ── Animations ── */
@keyframes fadeDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }

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

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(0.85);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}