:root {
    --bg-dark: #07090e;
    --bg-card: #0d121d;
    --bg-panel: #111827;
    --border-glow: #00f3ff;
    --border-dim: #1e293b;
    --text-main: #e2e8f0;
    --text-dim: #94a3b8;
    --accent-cyan: #00f3ff;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-yellow: #f59e0b;
    --terminal-bg: #030712;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px;
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(0, 243, 255, 0.08) 0%, transparent 50%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
}

.vault-container {
    width: 100%;
    max-width: 640px;
    background: var(--bg-card);
    border: 1px solid var(--border-dim);
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 243, 255, 0.05);
    overflow: hidden;
    position: relative;
}

.vault-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
}

.vault-header {
    padding: 24px 28px;
    border-bottom: 1px solid var(--border-dim);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.01);
}

.brand-title {
    font-size: 1.1em;
    font-weight: 700;
    letter-spacing: 2px;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-title span {
    color: var(--accent-cyan);
}

.status-badge {
    font-size: 0.75em;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
    letter-spacing: 1px;
}

.vault-body {
    padding: 28px;
}

.instructions {
    color: var(--text-dim);
    font-size: 0.9em;
    line-height: 1.5;
    margin-bottom: 24px;
}

.instructions strong {
    color: var(--text-main);
}

.input-wrapper {
    margin-bottom: 20px;
}

.input-label {
    display: block;
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.code-input-box {
    position: relative;
    display: flex;
    align-items: center;
}

.code-input {
    width: 100%;
    background: var(--terminal-bg);
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    padding: 16px 20px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 1.1em;
    color: var(--accent-cyan);
    letter-spacing: 3px;
    transition: all 0.2s ease;
}

.code-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
}

.code-input::placeholder {
    color: #334155;
    letter-spacing: 2px;
}

.btn-unlock {
    width: 100%;
    background: linear-gradient(135deg, #00f3ff, #00a8ff);
    color: #050b14;
    border: none;
    border-radius: 8px;
    padding: 16px;
    font-size: 1em;
    font-weight: 700;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 20px rgba(0, 243, 255, 0.3);
}

.btn-unlock:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 25px rgba(0, 243, 255, 0.45);
}

.btn-unlock:active {
    transform: translateY(0);
}

.btn-unlock:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.terminal-window {
    margin-top: 24px;
    background: var(--terminal-bg);
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    overflow: hidden;
}

.terminal-bar {
    background: #0b0f19;
    padding: 8px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #1f2937;
    font-size: 0.75em;
    color: #64748b;
    font-family: monospace;
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-log {
    padding: 16px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.85em;
    height: 130px;
    overflow-y: auto;
    line-height: 1.6;
}

.log-entry {
    margin-bottom: 4px;
}
.log-info { color: #38bdf8; }
.log-success { color: var(--accent-green); font-weight: bold; }
.log-error { color: var(--accent-red); font-weight: bold; }
.log-warn { color: var(--accent-yellow); }

.download-card {
    display: none;
    margin-top: 20px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 8px;
    padding: 18px;
    text-align: center;
    animation: fadeIn 0.4s ease;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent-green);
    color: #062419;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.95em;
    margin-top: 10px;
    transition: all 0.2s ease;
}

.download-link:hover {
    background: #34d399;
    transform: translateY(-1px);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}