/* ═══════════════════════════════════════════
   SENTINEL — Dark Theme Minimal
   Couleur : #EF4444 (rouge)
   ═══════════════════════════════════════════ */

:root {
    --sentinel-primary: #EF4444;
    --sentinel-primary-light: #FCA5A5;
    --sentinel-primary-dark: #DC2626;
    --sentinel-bg: #0a0a0f;
    --sentinel-card-bg: #111118;
    --sentinel-card-border: rgba(239, 68, 68, 0.08);
    --sentinel-text: #e2e8f0;
    --sentinel-text-muted: #64748b;
    --sentinel-input-bg: #0d0d14;
    --sentinel-input-border: rgba(239, 68, 68, 0.15);
    --sentinel-input-focus: rgba(239, 68, 68, 0.4);
    --sentinel-error: #f87171;
    --sentinel-success: #34d399;
}

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

body {
    min-height: 100vh;
    background: var(--sentinel-bg);
    color: var(--sentinel-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

/* ─── Container ─────────────────────────── */
.sentinel-container {
    width: 100%;
    max-width: 420px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

/* ─── Logo ──────────────────────────────── */
.sentinel-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.sentinel-shield {
    width: 72px;
    height: 72px;
    animation: shield-pulse 4s ease-in-out infinite;
}

@keyframes shield-pulse {
    0%, 100% { opacity: 0.9; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.03); }
}

@media (prefers-reduced-motion: reduce) {
    .sentinel-shield { animation: none; }
}

.sentinel-brand {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.sentinel-parent {
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--sentinel-text-muted);
    font-weight: 500;
}

.sentinel-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--sentinel-primary);
    letter-spacing: 0.05em;
}

/* ─── Card ──────────────────────────────── */
.sentinel-card {
    width: 100%;
    background: var(--sentinel-card-bg);
    border: 1px solid var(--sentinel-card-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.sentinel-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--sentinel-text);
    margin-bottom: 0.25rem;
}

.sentinel-subtitle {
    font-size: 0.85rem;
    color: var(--sentinel-text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

/* ─── Alert ─────────────────────────────── */
.sentinel-alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
}

.sentinel-alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--sentinel-error);
}

/* ─── Form ──────────────────────────────── */
.sentinel-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.sentinel-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sentinel-field label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--sentinel-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.sentinel-field input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--sentinel-input-bg);
    border: 1px solid var(--sentinel-input-border);
    border-radius: 10px;
    color: var(--sentinel-text);
    font-size: 1.1rem;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    letter-spacing: 0.15em;
    text-align: center;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.sentinel-field input:focus {
    border-color: var(--sentinel-input-focus);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.sentinel-field input::placeholder {
    color: rgba(100, 116, 139, 0.5);
    letter-spacing: 0.1em;
}

.sentinel-field-hint {
    font-size: 0.75rem;
    min-height: 1.2em;
    text-align: center;
    transition: color 0.2s;
}

.sentinel-field-hint.valid {
    color: var(--sentinel-success);
}

.sentinel-field-hint.invalid {
    color: var(--sentinel-error);
}

/* ─── TOTP Inputs ───────────────────────── */
.sentinel-totp-inputs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.sentinel-totp-inputs input {
    width: 48px;
    height: 56px;
    padding: 0;
    background: var(--sentinel-input-bg);
    border: 1px solid var(--sentinel-input-border);
    border-radius: 10px;
    color: var(--sentinel-text);
    font-size: 1.5rem;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    text-align: center;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    -moz-appearance: textfield;
}

.sentinel-totp-inputs input::-webkit-outer-spin-button,
.sentinel-totp-inputs input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.sentinel-totp-inputs input:focus {
    border-color: var(--sentinel-input-focus);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.sentinel-totp-separator {
    font-size: 1.5rem;
    color: var(--sentinel-text-muted);
    user-select: none;
}

/* ─── Timer ─────────────────────────────── */
.sentinel-timer {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sentinel-timer-bar {
    flex: 1;
    height: 3px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.sentinel-timer-fill {
    height: 100%;
    background: var(--sentinel-primary);
    border-radius: 2px;
    transition: width 1s linear;
}

.sentinel-timer-text {
    font-size: 0.75rem;
    color: var(--sentinel-text-muted);
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    min-width: 2.5em;
    text-align: right;
}

/* ─── Button ────────────────────────────── */
.sentinel-btn {
    width: 100%;
    padding: 0.875rem;
    background: var(--sentinel-primary);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, opacity 0.2s, transform 0.1s;
    letter-spacing: 0.03em;
}

.sentinel-btn:hover:not(:disabled) {
    background: var(--sentinel-primary-dark);
}

.sentinel-btn:active:not(:disabled) {
    transform: scale(0.98);
}

.sentinel-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.sentinel-btn-secondary {
    background: transparent;
    border: 1px solid var(--sentinel-input-border);
    color: var(--sentinel-text);
}

.sentinel-btn-secondary:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.3);
}

/* ─── Member info ───────────────────────── */
.sentinel-member-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.1);
    border-radius: 8px;
    margin-bottom: 1.25rem;
}

.sentinel-member-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--sentinel-text);
}

.sentinel-member-id {
    font-size: 0.75rem;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    color: var(--sentinel-primary);
    opacity: 0.8;
}

/* ─── Back link ─────────────────────────── */
.sentinel-back {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--sentinel-text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.sentinel-back:hover {
    color: var(--sentinel-primary);
}

/* ─── Locked ────────────────────────────── */
.sentinel-locked {
    text-align: center;
}

.sentinel-locked-icon {
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.sentinel-countdown {
    margin: 1.5rem 0;
}

.sentinel-countdown-time {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    color: var(--sentinel-primary);
    letter-spacing: 0.15em;
}

/* ─── Badge ─────────────────────────────── */
.sentinel-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.65rem;
    color: rgba(100, 116, 139, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* ─── Responsive ────────────────────────── */
@media (max-width: 480px) {
    body { padding: 1rem; }
    .sentinel-card { padding: 1.5rem; }
    .sentinel-totp-inputs input {
        width: 42px;
        height: 50px;
        font-size: 1.3rem;
    }
    .sentinel-totp-inputs { gap: 0.35rem; }
}