/* ============================================================
   Farrago – CSS Design System
   Light, warm, literary aesthetic. Instrument Serif + Inter.
   ============================================================ */

:root {
    /* Warm parchment palette */
    --bg-primary:       #f5f0e8;
    --bg-secondary:     #ede7d9;
    --bg-card:          rgba(255, 253, 248, 0.85);
    --bg-card-hover:    rgba(255, 253, 248, 1);
    --bg-header:        rgba(245, 240, 232, 0.92);

    --border-color:     rgba(160, 140, 110, 0.2);
    --border-hover:     rgba(160, 140, 110, 0.5);

    --text-primary:     #2c2416;
    --text-secondary:   #6b5c42;
    --text-muted:       #a0916e;

    /* Brand accent – deep navy/teal, like the deep ocean */
    --accent-color:     #2b5f6e;
    --accent-hover:     #1f4655;
    --accent-glow:      rgba(43, 95, 110, 0.18);
    --accent-light:     rgba(43, 95, 110, 0.08);

    /* Format Colours */
    --lp-color:         #7a4f2e;   /* Warm brown vinyl */
    --lp-bg:            rgba(122, 79, 46, 0.08);
    --lp-border:        rgba(122, 79, 46, 0.28);

    --cassette-color:   #2e6b5e;   /* Forest teal */
    --cassette-bg:      rgba(46, 107, 94, 0.08);
    --cassette-border:  rgba(46, 107, 94, 0.28);

    --cd-color:         #3d5a8a;   /* Slate blue */
    --cd-bg:            rgba(61, 90, 138, 0.08);
    --cd-border:        rgba(61, 90, 138, 0.28);

    --danger-color:     #9b2335;
    --danger-bg:        rgba(155, 35, 53, 0.07);
    --danger-border:    rgba(155, 35, 53, 0.25);
    --success-color:    #2e6b5e;

    /* Glassmorphism on light bg */
    --glass-blur:       blur(12px);

    /* Transitions */
    --transition-fast:   0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(at 10% 5%,  rgba(43, 95, 110, 0.06) 0px, transparent 55%),
        radial-gradient(at 90% 90%, rgba(122, 79, 46, 0.05) 0px, transparent 55%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4 {
    font-family: 'Instrument Serif', 'Georgia', serif;
    font-weight: 400;
    letter-spacing: -0.01em;
}

a { color: inherit; text-decoration: none; }

/* ── Header ─────────────────────────────────────────────── */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 2.25rem;
    height: 2.25rem;
    object-fit: contain;
}

.header-logo h1 {
    font-size: 1.9rem;
    font-weight: 400;
    color: var(--accent-color);
    letter-spacing: -0.02em;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-greeting {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ── Stats Section ───────────────────────────────────────── */
.stats-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.25rem;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    text-align: center;
    cursor: pointer;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-hover);
    box-shadow: 0 4px 16px rgba(43, 95, 110, 0.1);
}

.stat-value {
    font-family: 'Instrument Serif', serif;
    font-size: 2rem;
    font-weight: 400;
    line-height: 1;
    color: var(--accent-color);
    margin-bottom: 0.2rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.stat-card.format-lp       { border-left: 3px solid var(--lp-color); }
.stat-card.format-cassette { border-left: 3px solid var(--cassette-color); }
.stat-card.format-cd-other { border-left: 3px solid var(--cd-color); }

/* ── Controls Bar ────────────────────────────────────────── */
.controls-bar {
    position: sticky;
    top: 1rem;
    z-index: 90;
    background: var(--bg-header);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.875rem 1rem;
    margin-bottom: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    align-items: center;
    box-shadow: 0 2px 12px rgba(43, 95, 110, 0.08);
}

.search-wrapper {
    flex: 1;
    min-width: 250px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 0.875rem;
    width: 1rem;
    height: 1rem;
    color: var(--text-muted);
    pointer-events: none;
}

#search-input {
    width: 100%;
    background: rgba(255,255,255,0.7);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.65rem 1rem 0.65rem 2.4rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

#search-input::placeholder { color: var(--text-muted); }

#search-input:focus {
    outline: none;
    background: #fff;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.clear-btn {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.4rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.2rem;
    transition: color var(--transition-fast);
}
.clear-btn:hover { color: var(--text-primary); }

.filter-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.segmented-control {
    display: flex;
    background: rgba(43, 95, 110, 0.06);
    padding: 0.2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.4rem 0.875rem;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.02em;
}

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

.filter-btn.active {
    background: var(--accent-color);
    color: #fff;
    box-shadow: 0 1px 6px var(--accent-glow);
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--accent-color);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 2px 10px var(--accent-glow);
    transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
    background: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
}
.btn-outline:hover {
    background: rgba(43, 95, 110, 0.06);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.btn-danger {
    background: var(--danger-color);
    color: #fff;
}
.btn-danger:hover {
    background: #7e1c2b;
    box-shadow: 0 2px 10px rgba(155, 35, 53, 0.25);
}

.btn-block { display: flex; width: 100%; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.78rem; border-radius: 6px; }
.btn-icon { width: 0.95rem; height: 0.95rem; }

/* ── Collection Grid & Cards ─────────────────────────────── */
.collection-main { min-height: 400px; position: relative; }

.album-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
}

.album-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    height: 230px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: all var(--transition-normal);
    box-shadow: 0 1px 4px rgba(43, 95, 110, 0.04);
}

.album-card:hover {
    transform: translateY(-3px);
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    box-shadow: 0 6px 20px rgba(43, 95, 110, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.format-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.55rem;
    border-radius: 5px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border: 1px solid transparent;
}

.badge-lp       { color: var(--lp-color);       background: var(--lp-bg);       border-color: var(--lp-border); }
.badge-cassette { color: var(--cassette-color);  background: var(--cassette-bg); border-color: var(--cassette-border); }
.badge-cd-other { color: var(--cd-color);        background: var(--cd-bg);       border-color: var(--cd-border); }

.album-year {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
}

.card-body {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    margin-bottom: 0.875rem;
}

.album-title {
    font-family: 'Instrument Serif', serif;
    font-size: 1.15rem;
    font-weight: 400;
    line-height: 1.25;
    margin-bottom: 0.2rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
}

.album-artist {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.4rem;
}

.album-notes {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-style: italic;
    line-height: 1.4;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card-footer {
    display: flex;
    gap: 0.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 0.7rem;
}

.card-action {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    padding: 0.35rem;
    border-radius: 5px;
    transition: all var(--transition-fast);
}
.card-action svg { width: 0.85rem; height: 0.85rem; }
.card-action:hover { color: var(--text-primary); background: rgba(43, 95, 110, 0.06); }
.card-action.btn-delete:hover { color: var(--danger-color); background: var(--danger-bg); }

/* ── Empty / No Results States ───────────────────────────── */
.empty-state, .no-results-state {
    text-align: center;
    padding: 5rem 2rem;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: 12px;
}

.empty-icon { width: 3.5rem; height: 3.5rem; margin: 0 auto 1.25rem; color: var(--text-muted); }

.empty-state h3, .no-results-state h3 {
    font-family: 'Instrument Serif', serif;
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.empty-state p, .no-results-state p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    max-width: 380px;
    margin-left: auto;
    margin-right: auto;
}

.hidden { display: none !important; }

/* ── FAB (Mobile) ─────────────────────────────────────────── */
.fab {
    display: none;
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 50%;
    background: var(--accent-color);
    color: #fff;
    border: none;
    box-shadow: 0 4px 14px rgba(43, 95, 110, 0.4);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    z-index: 80;
    transition: all var(--transition-fast);
}
.fab:hover { background: var(--accent-hover); transform: scale(1.05); }
.fab svg { width: 1.4rem; height: 1.4rem; }

/* ── Dialogs ─────────────────────────────────────────────── */
.glass-dialog {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: #fdfaf5;
    color: var(--text-primary);
    padding: 0;
    max-width: 500px;
    width: 90%;
    margin: auto;
    box-shadow: 0 20px 50px rgba(43, 95, 110, 0.18);
}

.glass-dialog::backdrop {
    background: rgba(44, 36, 22, 0.45);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: fade-in 0.2s ease-out;
}

.glass-dialog[open] {
    animation: zoom-in 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes zoom-in {
    from { transform: scale(0.95); opacity: 0; }
    to   { transform: scale(1);    opacity: 1; }
}

.dialog-content { display: flex; flex-direction: column; }

.dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.35rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.dialog-header h2 {
    font-family: 'Instrument Serif', serif;
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--accent-color);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    transition: color var(--transition-fast);
}
.close-btn:hover { color: var(--text-primary); }

.dialog-form { padding: 1.35rem 1.5rem; }
.dialog-body { padding: 1.35rem 1.5rem; }

.dialog-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.65rem;
    margin-top: 1.35rem;
}

/* ── Form Controls ────────────────────────────────────────── */
.form-group {
    margin-bottom: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-row { display: grid; grid-template-columns: 1fr; gap: 1rem; }

label {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

input[type="text"],
input[type="password"],
input[type="number"],
textarea,
select {
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 7px;
    padding: 0.65rem 0.875rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
    background: #fff;
    box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea { resize: vertical; }

/* ── Format Radio Selector ────────────────────────────────── */
.format-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.format-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.format-card {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.7rem 0.5rem;
    border-radius: 7px;
    border: 1px solid var(--border-color);
    background: rgba(255,255,255,0.6);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    text-align: center;
}

.format-option input[type="radio"]:checked + .format-card.badge-lp {
    background: var(--lp-bg);
    border-color: var(--lp-color);
    color: var(--lp-color);
    box-shadow: 0 0 8px rgba(122, 79, 46, 0.12);
}

.format-option input[type="radio"]:checked + .format-card.badge-cassette {
    background: var(--cassette-bg);
    border-color: var(--cassette-color);
    color: var(--cassette-color);
    box-shadow: 0 0 8px rgba(46, 107, 94, 0.12);
}

.format-option input[type="radio"]:checked + .format-card.badge-cd-other {
    background: var(--cd-bg);
    border-color: var(--cd-color);
    color: var(--cd-color);
    box-shadow: 0 0 8px rgba(61, 90, 138, 0.12);
}

.format-option:hover .format-card {
    border-color: var(--border-hover);
    background: rgba(255,255,255,0.9);
}

/* ── Auth Page ────────────────────────────────────────────── */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 4rem);
    position: relative;
}

.auth-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    filter: blur(120px);
    opacity: 0.08;
    z-index: 1;
    pointer-events: none;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    max-width: 400px;
    width: 100%;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    z-index: 2;
    box-shadow: 0 12px 32px rgba(43, 95, 110, 0.12);
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo .logo-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 0.75rem;
    /* Whale is white; use a filter to make it visible on light bg */
    filter: invert(25%) sepia(50%) saturate(500%) hue-rotate(165deg) brightness(60%);
}

.auth-logo h1 {
    font-family: 'Instrument Serif', serif;
    font-size: 2.2rem;
    font-weight: 400;
    color: var(--accent-color);
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.auth-logo .subtitle { color: var(--text-muted); font-size: 0.85rem; font-style: italic; }

.help-text { font-size: 0.72rem; color: var(--text-muted); font-style: italic; }

/* ── Toast Notifications ─────────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    width: 90%;
    max-width: 340px;
}

.toast {
    background: #fdfaf5;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-color);
    border-radius: 7px;
    padding: 0.8rem 1.1rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: 0 4px 16px rgba(43, 95, 110, 0.12);
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slide-up-fade 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}
.toast.toast-error   { border-left-color: var(--danger-color); }
.toast.toast-success { border-left-color: var(--success-color); }

@keyframes slide-up-fade {
    from { transform: translateY(0.75rem); opacity: 0; }
    to   { transform: translateY(0);       opacity: 1; }
}

/* ── Alert Boxes ─────────────────────────────────────────── */
.alert-container { margin-bottom: 1.25rem; }

.alert {
    padding: 0.65rem 0.875rem;
    border-radius: 7px;
    font-size: 0.83rem;
    font-weight: 500;
    border: 1px solid transparent;
}

.alert-danger  { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger-color); }
.alert-warning { background: rgba(122, 79, 46, 0.07); border-color: var(--lp-border); color: var(--lp-color); }
.alert-success { background: rgba(46, 107, 94, 0.07); border-color: var(--cassette-border); color: var(--success-color); }
.alert-info    { background: var(--accent-light); border-color: rgba(43,95,110,0.25); color: var(--accent-color); }

.warning-text { color: var(--danger-color); font-size: 0.78rem; margin-top: 0.4rem; font-style: italic; }

.delete-dialog-box { max-width: 400px; }

/* ── Random Pick Glow ─────────────────────────────────────── */
@keyframes card-glow-pulse {
    0%   { box-shadow: 0 0 0 0   rgba(43, 95, 110, 0.7); border-color: var(--accent-color); transform: scale(1.02); }
    70%  { box-shadow: 0 0 0 14px rgba(43, 95, 110, 0);   border-color: var(--accent-color); transform: scale(1.02); }
    100% { box-shadow: 0 0 0 0   rgba(43, 95, 110, 0);   border-color: var(--border-hover); transform: scale(1);    }
}

.card-highlight-glow {
    animation: card-glow-pulse 1.8s ease-out 2;
    z-index: 10;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
    body { font-size: 15px; }

    .app-container { padding: 1rem 1rem 5rem 1rem; }

    .app-header { margin-bottom: 1.25rem; }

    .stats-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.65rem;
        margin-bottom: 1.25rem;
    }

    .stat-card { padding: 0.875rem 0.65rem; }
    .stat-value { font-size: 1.65rem; }

    .controls-bar {
        position: static;
        flex-direction: column;
        align-items: stretch;
        padding: 0.75rem;
        gap: 0.65rem;
        margin-bottom: 1.25rem;
    }

    .search-wrapper { min-width: 100%; }
    .filter-wrapper { justify-content: space-between; }
    .segmented-control { flex: 1; }

    .filter-btn {
        flex: 1;
        text-align: center;
        padding: 0.45rem 0.2rem;
        font-size: 0.75rem;
    }

    #btn-add-album, #btn-random-album { display: none; }
    .fab { display: flex; }
    .album-grid { grid-template-columns: minmax(0, 1fr); gap: 0.875rem; }
    .album-card { padding: 1rem; height: auto; min-height: 175px; min-width: 0; }
    .card-footer { margin-top: 0.875rem; }
}