/* ============================================
   ADMIN PANEL – Draconyx Music
   Vollständiges Stylesheet für admin.php
   ============================================ */

/* ── Login Page ──────────────────────────────────────────── */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    background: var(--glass-strong);
    padding: 50px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: var(--shadow-lg);
    max-width: 420px;
    width: 100%;
    animation: modalIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.92) translateY(24px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.login-title {
    margin-bottom: 32px;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.login-input {
    width: 100%;
    padding: 15px 18px;
    background: var(--glass);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: all var(--transition-normal);
    box-sizing: border-box;
    margin-bottom: 14px;
    display: block;
}

.login-input:focus {
    border-color: rgba(59,130,246,0.5);
    background: rgba(59,130,246,0.06);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.login-input::placeholder { color: var(--text-dark); }

.login-btn {
    width: 100%;
    padding: 15px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius);
    color: white;
    font-weight: 700;
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-spring);
    letter-spacing: 0.01em;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
}

.login-back-link {
    display: block;
    text-align: center;
    margin-top: 24px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.login-back-link:hover { color: var(--text); }

/* ── Alert Boxes ─────────────────────────────────────────── */
.alert {
    padding: 15px 20px;
    border-radius: var(--radius-lg);
    margin-bottom: 25px;
    text-align: center;
    font-weight: 500;
    font-size: 0.925rem;
    animation: alertSlideIn 0.3s ease-out;
}

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

.alert-success {
    background: rgba(16,185,129,0.12);
    color: #6ee7b7;
    border: 1px solid rgba(16,185,129,0.3);
}

.alert-error {
    background: rgba(239,68,68,0.12);
    color: #fca5a5;
    border: 1px solid rgba(239,68,68,0.3);
}

/* ── Layout ──────────────────────────────────────────────── */
.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 40px;
    background: rgba(5,7,20,0.55);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    border-bottom: 1px solid rgba(255,255,255,0.045);
    position: sticky;
    top: 0;
    z-index: 100;
    flex-wrap: wrap;
    gap: 14px;
}

.admin-header::before {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(59,130,246,0.4) 35%,
        rgba(139,92,246,0.4) 65%,
        transparent 100%
    );
}

.admin-logo {
    font-size: 1.3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #93C5FD 0%, #C4B5FD 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
}

.admin-header-right {
    display: flex;
    gap: 14px;
    align-items: center;
    flex-wrap: wrap;
}

.admin-username {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ── Admin Grid ──────────────────────────────────────────── */
.admin-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 32px;
}

/* ── Admin Cards ─────────────────────────────────────────── */
.admin-card {
    background: var(--glass);
    padding: 30px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.admin-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255,255,255,0.08) 30%,
        rgba(255,255,255,0.08) 70%,
        transparent
    );
}

.admin-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    -webkit-background-clip: text;
}

.admin-card-title-primary   { background: var(--gradient-primary); }
.admin-card-title-secondary { background: var(--gradient-secondary); }
.admin-card-title-tertiary  { background: var(--gradient-tertiary); }

/* ── Tabs ────────────────────────────────────────────────── */
.tabs {
    display: flex;
    margin-bottom: 28px;
    background: var(--glass);
    border-radius: var(--radius);
    padding: 5px;
    border: 1px solid rgba(255,255,255,0.06);
    gap: 4px;
}

.tab {
    flex: 1;
    padding: 11px 14px;
    text-align: center;
    border-radius: calc(var(--radius) - 2px);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 600;
    user-select: none;
    white-space: nowrap;
}

.tab:hover {
    color: var(--text);
    background: rgba(255,255,255,0.04);
}

.tab.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(59,130,246,0.3);
}

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.2s ease-out; }

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

/* ── Statistics Grid ─────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}

.stat-card {
    text-align: center;
    padding: 16px 12px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1;
}

.stat-value.blue   { color: var(--blue); }
.stat-value.purple { color: var(--purple); }
.stat-value.green  { color: var(--green); }
.stat-value.orange { color: var(--orange); }
.stat-value.cyan   { color: var(--cyan); }
.stat-value.pink   { color: var(--pink); }

.stat-label {
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 500;
}

/* Session Info Box */
.session-info {
    padding: 14px 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius);
    font-size: 0.825rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.session-info strong { color: var(--text); font-weight: 600; }

/* ── Upload Form ─────────────────────────────────────────── */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 6px;
}

.form-group { margin-bottom: 18px; }

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 0.825rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    outline: none;
    box-sizing: border-box;
}

.form-textarea {
    resize: vertical;
    min-height: 90px;
    line-height: 1.6;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: rgba(59,130,246,0.45);
    background: rgba(59,130,246,0.06);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.08);
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-dark); }

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke-width='2.5' stroke='%2364748B'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='m19.5 8.25-7.5 7.5-7.5-7.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 13px;
    padding-right: 36px;
    cursor: pointer;
}

.form-select option { background: #0F1427; color: var(--text); }

.form-hint {
    display: block;
    margin-top: 5px;
    color: var(--text-dark);
    font-size: 0.75rem;
    line-height: 1.4;
}

/* File Input */
input[type="file"].form-input {
    padding: 10px 14px;
    cursor: pointer;
    color: var(--text-muted);
}

input[type="file"].form-input::-webkit-file-upload-button {
    background: rgba(59,130,246,0.15);
    border: 1px solid rgba(59,130,246,0.3);
    border-radius: 8px;
    color: #93c5fd;
    padding: 6px 14px;
    font-size: 0.8rem;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    margin-right: 12px;
    transition: all 0.2s ease;
}

input[type="file"].form-input::-webkit-file-upload-button:hover {
    background: rgba(59,130,246,0.25);
    border-color: rgba(59,130,246,0.5);
}

/* Upload Button */
.upload-btn {
    width: 100%;
    padding: 15px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius);
    color: white;
    font-weight: 700;
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    margin-top: 10px;
    transition: all var(--transition-spring);
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.upload-btn::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.upload-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg), var(--shadow-glow-blue); }
.upload-btn:hover::before { opacity: 1; }
.upload-btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

/* ── Tracks Table ────────────────────────────────────────── */
.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.table-title {
    font-size: 1.05rem;
    font-weight: 700;
    background: var(--gradient-tertiary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.table-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.table-wrapper { overflow-x: auto; border-radius: var(--radius); }

.tracks-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255,255,255,0.015);
    border-radius: var(--radius);
    overflow: hidden;
    min-width: 900px;
}

.tracks-table th,
.tracks-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 0.855rem;
    white-space: nowrap;
}

.tracks-table th {
    background: rgba(255,255,255,0.04);
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    position: sticky;
    top: 0;
}

.tracks-table tbody tr {
    transition: background var(--transition-fast);
}

.tracks-table tbody tr:hover {
    background: rgba(255,255,255,0.03);
}

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

/* Cover Thumbnails */
.track-cover-thumb {
    width: 40px; height: 40px;
    border-radius: 8px;
    object-fit: cover;
    display: block;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    transition: transform var(--transition-fast);
}

.track-cover-thumb:hover { transform: scale(1.1); }

.no-cover-thumb {
    width: 40px; height: 40px;
    background: var(--gradient-primary);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,0.8);
    font-size: 1.1rem;
}

/* Genre Badge */
.genre-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Duration Cell */
.duration-cell {
    font-variant-numeric: tabular-nums;
    color: var(--text-muted);
    font-size: 0.82rem;
}

/* Track Title in table */
.track-table-title { font-weight: 600; color: var(--text); }
.track-table-artist { color: var(--text-muted); font-size: 0.82rem; }

/* ── Action Buttons ──────────────────────────────────────── */
.action-buttons { display: flex; gap: 6px; align-items: center; }

/* Delete */
.delete-btn {
    background: rgba(239,68,68,0.12);
    color: #fca5a5;
    border: 1px solid rgba(239,68,68,0.25);
    padding: 6px 11px;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.82rem;
    font-family: inherit;
    font-weight: 500;
}

.delete-btn:hover {
    background: rgba(239,68,68,0.25);
    color: white;
    border-color: rgba(239,68,68,0.5);
    transform: scale(1.05);
}

/* Duration refresh */
.duration-btn {
    background: rgba(59,130,246,0.12);
    color: #93c5fd;
    border: 1px solid rgba(59,130,246,0.25);
    padding: 6px 11px;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.82rem;
    font-family: inherit;
    font-weight: 500;
}

.duration-btn:hover {
    background: rgba(59,130,246,0.25);
    color: white;
    border-color: rgba(59,130,246,0.5);
    transform: scale(1.05);
}

/* Bulk Buttons */
.bulk-btn {
    background: rgba(255,255,255,0.05);
    color: var(--text-muted);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 8px 14px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.8rem;
    font-family: inherit;
    font-weight: 600;
    white-space: nowrap;
}

.bulk-btn:hover {
    background: rgba(255,255,255,0.09);
    color: var(--text);
    border-color: rgba(255,255,255,0.18);
}

/* Bulk Select */
.bulk-select {
    padding: 8px 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.8rem;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    transition: all var(--transition-fast);
}

.bulk-select:focus {
    border-color: rgba(59,130,246,0.4);
    box-shadow: 0 0 0 2px rgba(59,130,246,0.08);
}

/* Checkbox */
.track-checkbox,
#selectAll {
    width: 16px; height: 16px;
    accent-color: var(--blue);
    cursor: pointer;
}

/* ── Stats Tab ───────────────────────────────────────────── */
.stats-section { margin-bottom: 28px; }

.stats-section-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.stats-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    font-size: 0.875rem;
}

.stats-row:last-child { border-bottom: none; }
.stats-row span:first-child { color: var(--text-muted); }

.stats-value { font-weight: 700; }
.stats-value.purple { color: var(--purple); }
.stats-value.green  { color: var(--green); }
.stats-value.cyan   { color: var(--cyan); }

/* Top Track Items */
.top-track-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius);
    margin-bottom: 8px;
    transition: all var(--transition-fast);
    font-size: 0.855rem;
}

.top-track-item:hover {
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.09);
}

.top-track-meta {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    flex: 1;
    margin-right: 12px;
}

.top-track-badge {
    font-weight: 700;
    font-size: 0.8rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.top-track-badge.green  { color: var(--green); }
.top-track-badge.purple { color: var(--purple); }

/* Genre Bar Chart */
.genre-item { margin-bottom: 14px; }

.genre-item-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 0.835rem;
}

.genre-bar-bg {
    height: 6px;
    background: rgba(255,255,255,0.06);
    border-radius: 100px;
    overflow: hidden;
}

.genre-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 100px;
    transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
}

/* ── Settings Tab ────────────────────────────────────────── */
.settings-section { margin-bottom: 32px; }

.settings-section-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--blue);
    margin-bottom: 14px;
    display: flex; align-items: center; gap: 8px;
}

.settings-action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 8px;
}

.settings-btn {
    display: inline-flex;
    align-items: center; gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-spring);
}

.settings-btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.settings-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
}

.settings-btn-secondary {
    background: var(--gradient-secondary);
    color: white;
}

.settings-btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.settings-btn-ghost {
    background: rgba(255,255,255,0.05);
    color: var(--text-muted);
    border: 1px solid rgba(255,255,255,0.1);
}

.settings-btn-ghost:hover {
    background: rgba(255,255,255,0.09);
    color: var(--text);
}

/* ── Duration Progress Bar ───────────────────────────────── */
.duration-progress-wrapper {
    display: none;
    margin-top: 20px;
    padding: 16px 20px;
    background: rgba(59,130,246,0.06);
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: var(--radius);
    animation: fadeIn 0.3s ease-out;
}

.duration-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.875rem;
    font-weight: 600;
}

.duration-progress-track {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.08);
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: 8px;
}

.duration-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 100px;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.duration-progress-bar::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(300%); }
}

.duration-progress-details {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 4px;
}

/* ── Back Link ───────────────────────────────────────────── */
.back-link-wrapper {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.back-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    display: inline-flex; align-items: center; gap: 6px;
}

.back-link:hover { color: var(--text); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
    .admin-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .admin-header   { padding: 12px 18px; }
    .admin-grid     { gap: 18px; }
    .admin-card     { padding: 20px; }
    .form-row       { grid-template-columns: 1fr; gap: 0; }
    .table-header   { flex-direction: column; align-items: flex-start; }
    .table-actions  { width: 100%; flex-wrap: wrap; }
    .tabs           { flex-wrap: wrap; }
    .tab            { flex: none; width: calc(50% - 2px); }
    .login-card     { padding: 32px 24px; }
    .stats-grid     { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .stats-grid     { grid-template-columns: repeat(2, 1fr); }
    .tab            { width: 100%; }
    .settings-action-group { flex-direction: column; }
    .settings-btn   { width: 100%; justify-content: center; }
    .admin-card     { padding: 16px; }
}