/* ═══════════════════════════════════════════════════════════════════════════
   HELPER AdminApp - Estilos Premium Dark Mode
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── Variables & Reset ─────────────────────────────────────────────────── */

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-card-hover: rgba(25, 35, 55, 0.8);
    --bg-input: rgba(15, 20, 35, 0.9);
    --border-color: rgba(56, 189, 248, 0.15);
    --border-focus: rgba(56, 189, 248, 0.5);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.25);
    --success: #34d399;
    --success-glow: rgba(52, 211, 153, 0.2);
    --error: #f87171;
    --error-glow: rgba(248, 113, 113, 0.2);
    --warning: #fbbf24;
    --gradient-primary: linear-gradient(135deg, #0ea5e9, #8b5cf6);
    --gradient-success: linear-gradient(135deg, #34d399, #22d3ee);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px var(--accent-glow);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Cascadia Code', monospace;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100dvh;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Background grid effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(56, 189, 248, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ─── Layout ────────────────────────────────────────────────────────────── */

.app-container {
    position: relative;
    z-index: 1;
    max-width: 480px;
    margin: 0 auto;
    padding: 16px;
    min-height: 100dvh;
}

/* ─── Header ────────────────────────────────────────────────────────────── */

.app-header {
    text-align: center;
    padding: 24px 0 16px;
}

.app-logo {
    font-size: 2rem;
    margin-bottom: 4px;
}

.app-title {
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.app-subtitle {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 2px;
}

/* ─── Screens ───────────────────────────────────────────────────────────── */

.screen {
    display: none;
    animation: fadeIn 0.3s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ─── Cards (Glassmorphism) ─────────────────────────────────────────────── */

.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(56, 189, 248, 0.25);
}

.card-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-title::before {
    content: '';
    width: 3px;
    height: 16px;
    background: var(--gradient-primary);
    border-radius: 3px;
}

/* ─── Form Elements ─────────────────────────────────────────────────────── */

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-input);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
}

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

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input.mono {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    letter-spacing: 0.15em;
    text-align: center;
}

textarea.form-input {
    resize: vertical;
    min-height: 140px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.5;
}

/* ─── Buttons ───────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    outline: none;
    position: relative;
    overflow: hidden;
}

.btn:active {
    transform: scale(0.97);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 4px 25px rgba(14, 165, 233, 0.5);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1.5px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.btn-success {
    background: var(--gradient-success);
    color: #0a0e17;
    box-shadow: 0 4px 15px var(--success-glow);
}

.btn-success:hover:not(:disabled) {
    box-shadow: 0 4px 25px rgba(52, 211, 153, 0.4);
}

.btn-success.copied {
    background: var(--success);
}

.btn-danger {
    background: transparent;
    color: var(--error);
    border: 1.5px solid rgba(248, 113, 113, 0.3);
}

.btn-danger:hover:not(:disabled) {
    background: var(--error-glow);
    border-color: var(--error);
}

.btn-sm {
    padding: 10px 16px;
    font-size: 0.85rem;
}

.btn-group {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.btn-group .btn {
    flex: 1;
}

/* ─── Result Section ────────────────────────────────────────────────────── */

#result-section {
    display: none;
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

#result-section.visible {
    display: block;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.result-card {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.08), rgba(34, 211, 238, 0.05));
    border: 1px solid rgba(52, 211, 153, 0.25);
}

.token-display {
    background: var(--bg-input);
    border: 1px solid rgba(52, 211, 153, 0.2);
    border-radius: var(--radius-xs);
    padding: 16px;
    margin: 12px 0;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    line-height: 1.6;
    word-break: break-all;
    color: var(--success);
    user-select: all;
    max-height: 120px;
    overflow-y: auto;
}

.result-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 12px;
}

.result-meta-item {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.result-meta-item strong {
    color: var(--text-primary);
    display: block;
    font-size: 0.9rem;
}

/* ─── History ───────────────────────────────────────────────────────────── */

.history-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    margin-bottom: 10px;
    transition: var(--transition);
}

.history-item.expired {
    opacity: 0.5;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.history-machine {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.history-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-active {
    background: var(--success-glow);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.badge-expired {
    background: rgba(100, 116, 139, 0.15);
    color: var(--text-muted);
    border: 1px solid rgba(100, 116, 139, 0.2);
}

.history-meta {
    display: flex;
    gap: 16px;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.history-meta strong {
    color: var(--accent);
}

.history-token {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    word-break: break-all;
    padding: 8px;
    background: var(--bg-input);
    border-radius: var(--radius-xs);
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: 32px;
}

/* ─── Toolbar (bottom nav for settings/history) ─────────────────────────── */

.toolbar {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}

.toolbar .btn {
    flex: 1;
    font-size: 0.82rem;
    padding: 12px;
}

/* ─── Toast Notifications ───────────────────────────────────────────────── */

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 9999;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 90%;
    text-align: center;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast-success {
    background: rgba(52, 211, 153, 0.15);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.toast-error {
    background: rgba(248, 113, 113, 0.15);
    color: var(--error);
    border: 1px solid rgba(248, 113, 113, 0.3);
}

.toast-info {
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent);
    border: 1px solid rgba(56, 189, 248, 0.3);
}

/* ─── Spinner ───────────────────────────────────────────────────────────── */

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ─── Shake Animation ───────────────────────────────────────────────────── */

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

.shake {
    animation: shake 0.4s ease;
}

/* ─── Responsive ────────────────────────────────────────────────────────── */

@media (max-width: 380px) {
    .app-container {
        padding: 10px;
    }

    .card {
        padding: 18px;
    }

    .result-meta {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) {
    .app-container {
        padding: 32px;
        margin-top: 20px;
    }
}

/* ─── Scrollbar ─────────────────────────────────────────────────────────── */

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ─── Status indicator ──────────────────────────────────────────────────── */

.status-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--success);
    margin-bottom: 20px;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success-glow);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}