:root {
    --paper: #f6f1e7;
    --ink: #0b1f3a;
    --ink-soft: #2b3a4b;
    --gold: #d4b15f;
    --accent: #1b3a5d;
    --accent-2: #6b5a34;
    --border: #d8c9a7;
    --shadow: 0 18px 45px rgba(11, 31, 58, 0.12);
}

html, body {
    font-family: 'Palatino Linotype', 'Book Antiqua', Palatino, serif;
    color: var(--ink);
    background: var(--paper);
    min-height: 100%;
}

body {
    background-image:
        linear-gradient(180deg, rgba(11, 31, 58, 0.06), rgba(246, 241, 231, 0.2)),
        repeating-linear-gradient(90deg, rgba(11, 31, 58, 0.04) 0, rgba(11, 31, 58, 0.04) 1px, transparent 1px, transparent 22px);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    color: var(--accent-2);
}

.mzv-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.mzv-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 2rem;
    border-bottom: 1px solid var(--border);
    background: rgba(246, 241, 231, 0.94);
    backdrop-filter: blur(6px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.mzv-brand {
    display: flex;
    align-items: center;
    gap: 1.1rem;
}

.mzv-logo {
    width: 120px;
    height: auto;
}

.mzv-title {
    font-size: 1.1rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink);
}

.mzv-subtitle {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-2);
}

.mzv-nav {
    display: flex;
    gap: 1rem;
}

.mzv-link {
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-soft);
    padding: 0.35rem 0.2rem;
    border-bottom: 2px solid transparent;
}

.mzv-link.active {
    color: var(--ink);
    border-color: var(--gold);
}

.mzv-main {
    flex: 1;
    padding: 0.8rem 1.2rem 1.6rem;
}

.mzv-content {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 1rem;
    box-shadow: var(--shadow);
}

.mzv-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 0.4rem;
    align-items: center;
    margin-bottom: 0.6rem;
    overflow: visible;
}

.mzv-file {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: nowrap;
    flex: 1 1 auto;
}

.mzv-file-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.mzv-file-label {
    border: 1px solid var(--border);
    padding: 0.22rem 0.6rem;
    border-radius: 999px;
    background: white;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.55rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mzv-file-label:hover {
    border-color: var(--gold);
    color: var(--accent);
}

.mzv-file-name {
    font-size: 0.62rem;
    color: var(--ink-soft);
    max-width: 140px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mzv-meta {
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 0.5rem 0.7rem;
    background: rgba(255, 255, 255, 0.85);
}

.mzv-meta summary {
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-2);
    cursor: pointer;
}

.mzv-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.6rem;
    margin-top: 0.6rem;
}

.mzv-meta-label {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-soft);
}

.mzv-meta-errors {
    margin-top: 0.6rem;
    color: #8b1c1c;
    font-size: 0.72rem;
}

.mzv-graph-panel {
    padding: 0.6rem;
    overflow: auto;
    max-height: 75vh;
}

.mzv-graph {
    display: block;
    width: 100%;
    height: auto;
    max-height: 72vh;
    border: 1px solid #ddd;
    background: white;
    border-radius: 16px;
}

.screen-only {
    display: block;
}

.print-only {
    display: none;
}

h1 {
    font-size: 1.6rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
}

h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent-2);
    margin-bottom: 0.4rem;
}

.form-control, .form-select, .form-check-input {
    border-radius: 999px;
    border: 1px solid var(--border);
    background: white;
    box-shadow: none;
    font-size: 0.68rem;
    padding: 0.18rem 0.5rem;
    line-height: 1.1;
}

.form-control:focus, .form-select:focus, .form-check-input:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 0.2rem rgba(212, 177, 95, 0.2);
}

.btn {
    border-radius: 999px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.55rem;
    padding: 0.25rem 0.7rem;
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
}

.btn-primary:hover {
    background: #102742;
    border-color: #102742;
}

.btn-outline-secondary {
    border-color: var(--border);
    color: var(--ink-soft);
}

.nav-tabs {
    border-bottom: 1px solid var(--border);
}

.nav-tabs .nav-link {
    border: none;
    color: var(--ink-soft);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.65rem;
    padding: 0.3rem 0.5rem;
}

.nav-tabs .nav-link.active {
    color: var(--ink);
    border-bottom: 2px solid var(--gold);
    background: transparent;
}

.table {
    font-size: 0.7rem;
}

.alert {
    border-radius: 12px;
    border: 1px solid var(--border);
    padding: 0.4rem 0.6rem;
    font-size: 0.72rem;
}

.alert-info {
    padding: 0.25rem 0.45rem;
    font-size: 0.62rem;
    letter-spacing: 0.04em;
}

.compact-ui .form-label {
    font-size: 0.65rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.1rem;
}

.compact-ui .btn,
.compact-ui .mzv-file-label {
    white-space: nowrap;
}

.compact-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem 0.5rem;
    align-items: flex-start;
}

.compact-field {
    flex: 1 1 150px;
    min-width: 150px;
}

.compact-field.wide {
    flex: 2 1 200px;
    min-width: 200px;
}

.checkbox-control {
    display: flex;
    align-items: center;
    height: 22px;
    padding-left: 0.1rem;
}

.checkbox-control .form-check-input {
    margin-top: 0;
    width: 14px;
    height: 14px;
}

.compact-field .form-control,
.compact-field .form-select {
    height: 24px;
    padding-top: 0.1rem;
    padding-bottom: 0.1rem;
}

@media (max-width: 900px) {
    .mzv-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.6rem;
        padding: 0.8rem 1rem;
    }

    .mzv-main {
        padding: 0.8rem;
    }

    .mzv-content {
        padding: 0.8rem;
    }

    .mzv-logo {
        width: 110px;
    }

    .mzv-file {
        flex: 1 1 100%;
    }

    .compact-field,
    .compact-field.wide {
        flex: 1 1 100%;
        min-width: 0;
    }

    .nav-tabs {
        overflow-x: auto;
        overflow-y: hidden;
        flex-wrap: nowrap;
        white-space: nowrap;
    }
}

@media print {
    @page {
        size: A4 landscape;
        margin: 10mm;
    }

    body {
        background: white;
    }

    .screen-only,
    .mzv-header,
    .mzv-toolbar,
    .mzv-meta,
    .alert {
        display: none !important;
    }

    .print-only {
        display: block;
    }

    .print-block,
    .print-block * {
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .mzv-content {
        border: none;
        box-shadow: none;
        padding: 0;
    }

    .mzv-graph {
        border: none;
        width: 100%;
        height: auto;
        max-height: 140mm;
    }

    .print-only table {
        font-size: 0.75rem;
    }

    .mzv-graph-panel {
        padding: 0;
    }
}