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

:root {
--bg: #0f1117;
--surface: #1a1d27;
--surface2: #242734;
--border: #2e3245;
--text: #e4e5eb;
--muted: #8b8fa3;
--accent: #6c5ce7;
--accent-hover: #7e70f0;
--danger: #e74c3c;
--danger-hover: #c0392b;
--success: #2ecc71;
--warning: #f39c12;
--radius: 10px;
}

body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
background: var(--bg);
color: var(--text);
line-height: 1.6;
min-height: 100vh;
}

.container {
max-width: 720px;
margin: 0 auto;
padding: 2rem 1rem;
}

header {
text-align: center;
margin-bottom: 2rem;
}

header h1 {
font-size: 2rem;
font-weight: 700;
letter-spacing: -0.5px;
}

.subtitle {
color: var(--muted);
font-size: 0.9rem;
}

.card {
background: var(--surface);
border: 1px solid var(--border);
border-radius: var(--radius);
margin-bottom: 1.5rem;
overflow: hidden;
}

.card-header {
display: flex;
justify-content: space-between;
align-items: center;
padding: 1rem 1.25rem;
border-bottom: 1px solid var(--border);
}

.card-header h2 {
font-size: 1rem;
font-weight: 600;
}

.card-body {
padding: 1.25rem;
}

.form-group {
margin-bottom: 1rem;
}

.form-group label {
display: block;
font-size: 0.8rem;
font-weight: 500;
color: var(--muted);
margin-bottom: 0.4rem;
}

.form-group input, .form-group textarea {
width: 100%;
padding: 0.6rem 0.8rem;
background: var(--surface2);
border: 1px solid var(--border);
border-radius: 6px;
color: var(--text);
font-size: 0.9rem;
outline: none;
transition: border-color 0.2s;
}

.form-group input:focus, .form-group textarea:focus {
border-color: var(--accent);
}

.form-group textarea {
resize: vertical;
min-height: 60px;
font-family: inherit;
}

.btn {
display: inline-flex;
align-items: center;
gap: 0.4rem;
padding: 0.6rem 1.2rem;
border: none;
border-radius: 6px;
font-size: 0.85rem;
font-weight: 500;
cursor: pointer;
transition: background 0.2s, opacity 0.2s;
}

.btn:hover { opacity: 0.85; }
.btn:active { opacity: 0.7; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; background: var(--surface2); color: var(--muted); }

.btn-close {
background: none;
border: none;
color: var(--muted);
font-size: 1.2rem;
cursor: pointer;
padding: 0.2rem;
}

.pin-table {
width: 100%;
border-collapse: collapse;
font-size: 0.85rem;
}

.pin-table th, .pin-table td {
text-align: left;
padding: 0.7rem 0.6rem;
border-bottom: 1px solid var(--border);
}

.pin-table th {
font-size: 0.75rem;
text-transform: uppercase;
color: var(--muted);
font-weight: 500;
}

.pin-table tr:last-child td { border-bottom: none; }

.badge {
display: inline-block;
padding: 0.15rem 0.5rem;
border-radius: 4px;
font-size: 0.75rem;
font-weight: 600;
}

.badge-locked { background: rgba(231,76,60,0.15); color: var(--danger); }
.badge-unlocked { background: rgba(46,204,113,0.15); color: var(--success); }

.pin-display {
font-family: 'SF Mono', 'Fira Code', monospace;
font-size: 2.5rem;
letter-spacing: 0.5rem;
text-align: center;
padding: 1rem 0;
font-weight: 700;
user-select: all;
}

.pin-display.masked {
color: var(--muted);
cursor: default;
}

.countdown {
font-family: 'SF Mono', 'Fira Code', monospace;
font-size: 0.85rem;
font-weight: 600;
letter-spacing: 0.05em;
white-space: nowrap;
}

.recovery-list {
margin: 0.75rem 0;
}

.recovery-item {
display: flex;
align-items: center;
gap: 0.5rem;
padding: 0.4rem 0;
font-size: 0.78rem;
}

.recovery-item code {
flex: 1;
background: var(--surface2);
padding: 0.3rem 0.5rem;
border-radius: 4px;
font-family: 'SF Mono', 'Fira Code', monospace;
font-size: 0.72rem;
word-break: break-all;
overflow: hidden;
text-overflow: ellipsis;
max-height: 1.5em;
line-height: 1.5;
}

.copy-btn {
background: none;
border: none;
color: var(--muted);
cursor: pointer;
font-size: 0.85rem;
padding: 0.2rem;
flex-shrink: 0;
}

.copy-btn:hover { color: var(--text); }

.warning-box {
background: rgba(243,156,18,0.1);
border: 1px solid rgba(243,156,18,0.3);
border-radius: 6px;
padding: 0.75rem 1rem;
font-size: 0.82rem;
color: var(--warning);
margin: 0.75rem 0;
}

.muted { color: var(--muted); }
.text-center { text-align: center; }
.hidden { display: none !important; }
.error-msg { color: var(--danger); font-size: 0.85rem; }

#modal-overlay {
position: fixed;
inset: 0;
background: rgba(0,0,0,0.6);
display: flex;
align-items: center;
justify-content: center;
z-index: 100;
}

.modal {
background: var(--surface);
border: 1px solid var(--border);
border-radius: var(--radius);
width: 90%;
max-width: 500px;
max-height: 90vh;
overflow-y: auto;
}

.modal-header {
display: flex;
justify-content: space-between;
align-items: center;
padding: 1rem 1.25rem;
border-bottom: 1px solid var(--border);
}

.modal-header h2 { font-size: 1rem; }
.modal-body { padding: 1.25rem; }

.empty-state {
text-align: center;
padding: 2rem 1rem;
color: var(--muted);
font-size: 0.9rem;
}