/* =======================================================
   NOTEBOOK.CSS
   Investigation Note Organizer - Dark vault theme
   All tokens inherit from vault.css
   ======================================================= */

/* ── page shell ── */
.notebook-page {
    background: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-sans);
}

/* ── hero ── */
.notebook-hero {
    border-bottom: 1px solid var(--border);
    padding: 72px 1.5rem 60px;
    background: var(--black);
    position: relative;
    overflow: hidden;
}

/* subtle scan line on hero */
.notebook-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        rgba(212,133,78,0.018) 3px,
        rgba(212,133,78,0.018) 4px
    );
    pointer-events: none;
}

.notebook-hero-inner {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.notebook-hero .eyebrow {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--copper);
    margin-bottom: 0.6rem;
}

.notebook-hero h1 {
    font-family: var(--font-sans);
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--pearl);
    margin: 0 0 0.75rem;
}

.notebook-hero .hero-subtitle {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--slate);
    max-width: 800px;
    margin: 0 auto;
}

/* ── main / layout ── */
.notebook-main {
    padding: 2rem 1.5rem 3rem;
}

.notebook-layout {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
}

/* ── panels ── */
.panel {
    border: 1px solid var(--border);
    padding: 1.75rem;
    background: var(--surface);
    position: relative;
}

.panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--copper) 0%, transparent 70%);
    opacity: 0.45;
}

.panel-header h2 {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--copper);
    margin-bottom: 0.5rem;
}

.panel-header p {
    color: var(--slate);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    line-height: 1.65;
}

/* ── field label ── */
.field-label {
    display: block;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--slate);
    margin-bottom: 0.5rem;
}

/* ── textarea ── */
.notes-textarea {
    width: 100%;
    min-height: 320px;
    padding: 1rem;
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--pearl);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.65;
    resize: vertical;
    transition: border-color var(--transition), background var(--transition);
}

.notes-textarea:focus {
    border-color: var(--copper);
    outline: none;
    background: var(--surface3);
    box-shadow: 0 0 0 2px rgba(212,133,78,0.1);
}

.notes-textarea::placeholder {
    color: var(--text-muted);
}

/* ── upload zone ── */
.upload-zone {
    margin-top: 1rem;
    border: 1px dashed rgba(212,133,78,0.3);
    padding: 1rem;
    text-align: center;
    transition: border-color var(--transition), background var(--transition);
}

.upload-zone.drag-over {
    border-color: var(--copper);
    background: rgba(212,133,78,0.06);
}

.upload-text {
    font-size: 0.875rem;
    color: var(--slate);
    margin-bottom: 0.75rem;
}

.upload-button {
    display: inline-block;
    border: 1px solid var(--border-strong);
    background: transparent;
    color: var(--copper);
    padding: 0.55rem 1.1rem;
    text-transform: uppercase;
    font-family: var(--font-mono);
    letter-spacing: 0.14em;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}

.upload-button:hover {
    background: rgba(212,133,78,0.1);
    color: var(--copper-light);
    border-color: var(--copper-light);
}

.file-input {
    display: none;
}

/* ── file list ── */
.file-list {
    margin-top: 1rem;
    border: 1px solid var(--border);
    padding: 0.75rem 1rem;
    background: var(--surface2);
}

.file-list-title {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--slate);
    margin-bottom: 0.5rem;
}

.file-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.875rem;
    color: var(--slate-light);
}

.file-list li {
    padding: 0.25rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

/* ── button row ── */
.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.btn-action {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--slate-light);
    padding: 0.65rem 1.2rem;
    text-transform: uppercase;
    font-family: var(--font-mono);
    letter-spacing: 0.14em;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn-action:hover {
    background: rgba(212,133,78,0.1);
    color: var(--copper);
    border-color: rgba(212,133,78,0.5);
}

.session-row {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--slate);
}

/* ── alert panel ── */
.alert-panel {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    border: 1px solid var(--border);
    padding: 1rem;
    margin-bottom: 1.5rem;
    background: var(--surface);
}

.alert-item {
    text-align: center;
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.75rem;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
}

.alert-item:hover {
    border-color: rgba(212,133,78,0.45);
    background: rgba(212,133,78,0.05);
}

.alert-label {
    display: block;
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.14em;
    color: var(--slate);
}

.alert-value {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--copper);
}

/* ── output sections ── */
.output-sections {
    display: grid;
    gap: 1.5rem;
}

.output-section {
    border: 1px solid var(--border);
    padding: 1rem;
    background: var(--surface);
}

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

.section-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.section-header h3 {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--copper);
}

.muted {
    color: var(--slate);
    font-size: 0.875rem;
}

/* ── alias list ── */
.alias-list {
    margin-top: 0.75rem;
    border-top: 1px solid var(--border);
    padding-top: 0.75rem;
    font-size: 0.875rem;
    color: var(--slate-light);
}

.alias-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.alias-list li {
    margin-bottom: 0.4rem;
}

.alias-list label {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    font-size: 0.875rem;
    color: var(--slate-light);
    text-transform: none;
    letter-spacing: 0;
}

.alias-checkbox {
    accent-color: var(--copper);
}

/* ── copy button ── */
.btn-copy {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--slate);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    padding: 0.4rem 0.7rem;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn-copy:hover {
    color: var(--copper);
    border-color: rgba(212,133,78,0.4);
    background: rgba(212,133,78,0.06);
}

/* ── section body ── */
.section-body {
    font-size: 0.9rem;
    line-height: 1.65;
    color: var(--slate-light);
}

.section-body ul {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--slate-light);
}

.section-body li {
    margin-bottom: 0.4rem;
}

/* ── timeline ── */
.timeline-list {
    position: relative;
    padding-left: 1.5rem;
    border-left: 1px solid rgba(212,133,78,0.35);
}

.timeline-item {
    position: relative;
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
    color: var(--slate-light);
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -1.05rem;
    top: 0.4rem;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--copper);
    box-shadow: 0 0 6px rgba(212,133,78,0.5);
}

/* ── conflict / issue highlights ── */
.conflict-text {
    color: #e05555;
    font-weight: 600;
}

.issue-highlight {
    padding: 0.4rem 0.5rem;
    border-radius: 2px;
}

.issue-highlight.conflict {
    background: rgba(200, 50, 50, 0.12);
    border-left: 2px solid rgba(200,50,50,0.5);
}

.issue-highlight.duplicate {
    background: rgba(212,133,78,0.1);
    border-left: 2px solid rgba(212,133,78,0.4);
}

.issue-highlight.uncertain {
    background: rgba(200,180,0,0.1);
    border-left: 2px solid rgba(200,180,0,0.35);
}

/* ── issue nav ── */
.issue-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.issue-nav button {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--slate-light);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.875rem;
    padding: 0.3rem 0.5rem;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.issue-nav button:hover {
    background: rgba(212,133,78,0.08);
    border-color: rgba(212,133,78,0.4);
    color: var(--copper);
}

/* ── export panel ── */
.export-panel {
    margin-top: 2rem;
    border: 1px solid var(--border);
    padding: 1rem;
    background: var(--surface);
}

.export-panel h3 {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--copper);
    margin-bottom: 0.75rem;
}

.export-note {
    font-size: 0.875rem;
    color: var(--slate);
    margin-top: 0.75rem;
}

/* ── responsive ── */
@media (max-width: 1024px) {
    .notebook-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .alert-panel {
        grid-template-columns: 1fr;
    }
    .button-row {
        flex-direction: column;
        align-items: stretch;
    }
}