:root {
    --sv-bg: #f9fafb;
    --sv-panel-bg: #ffffff;
    --sv-border: #e2e8f0;
    --sv-primary: #2563eb;
    --sv-primary-soft: #dbeafe;
    --sv-secondary: #38bdf8;
    --sv-danger: #ef4444;
    --sv-text: #0f172a;
    --sv-muted: #64748b;
    --sv-radius-lg: 14px;
    --sv-radius-md: 10px;
    --sv-radius-sm: 6px;
    --sv-shadow-soft: 0 8px 20px rgba(15, 23, 42, 0.06);
    --match-bg: #dcfce7;
    --mismatch-bg: #fef9c3;
    --gap-bg: #fee2e2;
}

/* Reset */

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

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    /* plein écran plus sobre, plus de “carte” flottante */
    background: var(--sv-bg);
    color: var(--sv-text);
}

/* Shell plein écran */

.sv-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    /* plus de centrage ni de padding qui créent l'effet "fenêtre" */
    padding: 0;
}

/* La page prend tout l'écran, plus de max-width/bordure/ombre */

.sv-page {
    width: 100%;
    max-width: none;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border-radius: 0;
    border: none;
    box-shadow: none;
    overflow: hidden;
}

/* Header */

.sv-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.6rem;
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
}

.sv-header-left {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.sv-logo-circle {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.05rem;
    color: #ffffff;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.4);
}

.sv-header-text h1 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--sv-text);
}

.sv-header-text p {
    margin: 0.1rem 0 0;
    font-size: 0.84rem;
    color: var(--sv-muted);
}

.sv-header-right {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

/* Main layout */

.sv-main {
    flex: 1;
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 1.1rem;
    padding: 1.1rem 1.6rem 1.2rem;
    background: var(--sv-bg);
}

/* Sidebar */

.sv-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.sv-panel {
    background: var(--sv-panel-bg);
    border-radius: var(--sv-radius-lg);
    padding: 0.8rem 0.9rem;
    border: 1px solid var(--sv-border);
    box-shadow: var(--sv-shadow-soft);
}

.sv-panel h2 {
    margin: 0 0 0.3rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--sv-text);
}

.sv-muted {
    font-size: 0.8rem;
    color: var(--sv-muted);
}

.sv-help {
    margin: 0.35rem 0 0;
    font-size: 0.78rem;
    color: var(--sv-muted);
}

/* Content */

.sv-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Toolbar */

.sv-toolbar {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 0.2rem;
}

.sv-menu {
    position: relative;
}

.sv-menu-toggle {
    border-radius: 999px;
    border: 1px solid var(--sv-border);
    background: #ffffff;
    color: var(--sv-text);
    font-size: 0.83rem;
    padding: 0.35rem 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.sv-menu-toggle:hover {
    border-color: #bfdbfe;
    background: var(--sv-primary-soft);
}

.sv-menu-panel {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 240px;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid var(--sv-border);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
    padding: 0.4rem 0;
    display: none;
    z-index: 30;
}

.sv-menu.open .sv-menu-panel {
    display: block;
}

.sv-menu-item {
    width: 100%;
    border: none;
    background: transparent;
    padding: 0.35rem 0.9rem;
    font-size: 0.83rem;
    text-align: left;
    cursor: pointer;
}

.sv-menu-item:hover {
    background: #eff6ff;
}

.sv-menu-panel hr {
    border: none;
    border-top: 1px solid #e5e7eb;
    margin: 0.25rem 0;
}

.sv-selection-info {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--sv-muted);
}

/* Sequence list container */

.sv-sequence-list {
    background: var(--sv-panel-bg);
    border-radius: var(--sv-radius-lg);
    border: 1px solid var(--sv-border);
    padding: 0.7rem 0.8rem;
    box-shadow: var(--sv-shadow-soft);
    max-height: calc(100vh - 220px);
    overflow-y: auto;
}

.sv-sequence-list-empty {
    margin: 0.3rem 0;
    font-size: 0.84rem;
    color: var(--sv-muted);
}

/* Sequence card – largeur fixe, centrée */

.seq-card {
    width: 100%;
    max-width: 960px;
    margin: 0 auto 0.6rem;
    border-radius: var(--sv-radius-md);
    border: 1px solid #e5e7eb;
    background: #ffffff;
    padding: 0.6rem 0.75rem;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
    transition: transform 0.1s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.seq-card:hover {
    transform: translateY(-1px);
    border-color: #cbd5e1;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}

.seq-card-header {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 0.3rem;
}

.seq-checkbox {
    margin: 0;
}

.seq-title {
    flex: 1;
}

.seq-title-main {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
}

.seq-name {
    font-size: 0.9rem;
    font-weight: 600;
}

.seq-badge {
    font-size: 0.74rem;
    padding: 0.02rem 0.45rem;
    border-radius: 999px;
    background: #eff6ff;
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
}

.seq-meta {
    font-size: 0.75rem;
    color: var(--sv-muted);
    margin-top: 0.05rem;
}

/* Actions petites icônes */

.seq-actions {
    display: flex;
    gap: 0.25rem;
}

.seq-action-btn {
    width: 26px;
    height: 26px;
    border-radius: 999px;
    border: 1px solid #e5e7eb;
    background: #ffffff;
    font-size: 0.8rem;
    color: #64748b;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

.seq-action-btn:hover {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1d4ed8;
    transform: translateY(-1px);
}

/* === VIEWPORT FIXE : seul le contenu défile horizontalement === */

.seq-viewport {
    margin-top: 0.25rem;
    padding: 0.3rem 0.4rem 0.35rem;
    border-radius: 10px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    overflow-x: auto;
    overflow-y: hidden;
}

/* Cadre de taille fixe (largeur) centré */

.seq-viewport {
    width: 100%;
}

/* Bloc intérieur extensible : c’est LUI qui s’étire et défile */

.seq-block-inner {
    display: inline-block;
}

/* Lignes de séquence */

.seq-lines {
    font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.8rem;
}

.seq-line {
    white-space: nowrap;
}

.seq-line-main {
    padding: 0.2rem 0.15rem;
    border-radius: 7px;
}

.seq-line-markers {
    padding: 0.1rem 0.15rem;
    font-size: 0.75rem;
    color: #94a3b8;
}

.seq-derived-block {
    margin-top: 0.25rem;
}

.seq-derived-label {
    font-size: 0.76rem;
    color: var(--sv-muted);
    margin-bottom: 0.05rem;
}

.seq-line-derived {
    padding: 0.18rem 0.15rem;
    border-radius: 7px;
    background: #f9fafb;
    border: 1px dashed #e5e7eb;
}

/* Caractères */

.nt,
.marker,
.aa {
    display: inline-block;
    min-width: 0.7rem;
    text-align: center;
}

/* Groupes de codons tous les 3 caractères (séquence et marqueurs alignés) */

.seq-line[data-kind="nuc"] .nt:nth-child(3n) {
    margin-right: 0.3rem;
}

.seq-line-markers .marker:nth-child(3n) {
    margin-right: 0.3rem;
}

/* Bases */

.nt {
    border-radius: 3px;
    padding: 0 0.03rem;
}

.nt-A {
    color: #15803d;
    background: rgba(34, 197, 94, 0.12);
}

.nt-T {
    color: #b45309;
    background: rgba(251, 146, 60, 0.16);
}

.nt-C {
    color: #075985;
    background: rgba(56, 189, 248, 0.16);
}

.nt-G {
    color: #854d0e;
    background: rgba(234, 179, 8, 0.16);
}

.nt-U {
    color: #7e22ce;
    background: rgba(168, 85, 247, 0.16);
}

.nt-stop {
    background: rgba(239, 68, 68, 0.14);
    color: #b91c1c;
    font-weight: 600;
}

/* Couleurs de comparaison */

.nt-comp-match {
    background: var(--match-bg) !important;
}

.nt-comp-mismatch {
    background: var(--mismatch-bg) !important;
}

.nt-comp-gap {
    background: var(--gap-bg) !important;
}

/* Protéines */

.aa {
    border-radius: 4px;
    border: 1px solid #e5e7eb;
    padding: 0 0.18rem;
    margin-right: 0.03rem;
    background: #f9fafb;
}

.aa-stop {
    background: #fee2e2;
    border-color: #fecaca;
    color: #b91c1c;
    font-weight: 600;
}

/* Marqueurs * et - */

.marker {
    font-size: 0.75rem;
}

.marker-match {
    color: #16a34a;
}

.marker-diff {
    color: #dc2626;
}

/* Boutons généraux */

.sv-btn,
.sv-ghost-btn {
    font-family: inherit;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.84rem;
    transition: all 0.15s ease;
}

.sv-btn {
    background: var(--sv-primary);
    color: #ffffff;
    padding: 0.35rem 0.9rem;
    font-weight: 600;
    border-color: var(--sv-primary);
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.32);
}

.sv-btn:hover {
    filter: brightness(1.03);
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.38);
    transform: translateY(-1px);
}

.sv-btn-outline {
    background: #ffffff;
    color: #1d4ed8;
    border-color: #bfdbfe;
}

.sv-btn-outline:hover {
    background: #eff6ff;
}

.sv-btn-full {
    width: 100%;
}

.sv-btn-sm {
    padding: 0.25rem 0.7rem;
    font-size: 0.78rem;
}

/* Ghost */

.sv-ghost-btn {
    background: #f9fafb;
    color: #1e3a8a;
    padding: 0.35rem 0.9rem;
    border-color: rgba(148, 163, 184, 0.5);
}

.sv-ghost-btn:hover {
    background: rgba(239, 246, 255, 0.9);
    border-color: #bfdbfe;
}

/* Inputs */

select,
input[type="file"],
input[type="text"],
textarea {
    width: 100%;
    margin-top: 0.25rem;
    border-radius: 999px;
    border: 1px solid #e2e8f0;
    background: #ffffff;
    color: var(--sv-text);
    padding: 0.35rem 0.7rem;
    font-size: 0.84rem;
    font-family: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

textarea {
    border-radius: var(--sv-radius-md);
    resize: vertical;
}

select:focus,
input[type="file"]:focus,
input[type="text"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--sv-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.16);
}

input[type="file"] {
    padding: 0.3rem 0.7rem;
}

/* Modals */

.sv-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
}

.sv-modal[aria-hidden="true"] {
    display: none;
}

.sv-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    backdrop-filter: blur(4px);
}

.sv-modal-dialog {
    position: relative;
    z-index: 51;
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    padding: 0.7rem 0.85rem;
    max-width: 560px;
    width: calc(100% - 2.5rem);
    max-height: calc(100vh - 120px);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.26);
}

.sv-modal-large {
    max-width: 880px;
}

.sv-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding-bottom: 0.45rem;
    border-bottom: 1px solid #e5e7eb;
}

.sv-modal-header h2 {
    margin: 0;
    font-size: 0.98rem;
}

.sv-modal-body {
    padding: 0.55rem 0 0.55rem;
    max-height: calc(100vh - 220px);
    overflow: auto;
}

.sv-modal-footer {
    padding-top: 0.4rem;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: flex-end;
    gap: 0.45rem;
}

.sv-icon-btn {
    width: 26px;
    height: 26px;
    border-radius: 999px;
    border: none;
    background: transparent;
    color: var(--sv-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.05rem;
}

.sv-icon-btn:hover {
    background: #f1f5f9;
    color: #0f172a;
}

/* Labels & radios */

.sv-label {
    display: block;
    font-size: 0.84rem;
    margin-top: 0.4rem;
    margin-bottom: 0.2rem;
}

.sv-radio-row {
    display: flex;
    gap: 0.9rem;
    font-size: 0.83rem;
}

/* Table code génétique */

.code-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
}

.code-table th,
.code-table td {
    border: 1px solid #e2e8f0;
    padding: 0.23rem 0.28rem;
    text-align: center;
}

.code-table thead th {
    background: #eff6ff;
    font-weight: 600;
}

.codon-mini {
    font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.7rem;
    margin-right: 0.12rem;
}

.codon-mini.start {
    color: #16a34a;
    font-weight: 600;
}

/* Footer légende */

.sv-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1.6rem 0.75rem;
    border-top: 1px solid #e5e7eb;
    background: #ffffff;
    font-size: 0.78rem;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.22rem;
}

.nt-box {
    width: 18px;
    height: 18px;
    border-radius: 999px;
    border: 1px solid #e2e8f0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
}

.nt-box.nt-A { background: rgba(34, 197, 94, 0.12); color: #15803d; }
.nt-box.nt-T { background: rgba(251, 146, 60, 0.16); color: #b45309; }
.nt-box.nt-C { background: rgba(56, 189, 248, 0.16); color: #075985; }
.nt-box.nt-G { background: rgba(234, 179, 8, 0.16); color: #854d0e; }
.nt-box.nt-U { background: rgba(168, 85, 247, 0.16); color: #7e22ce; }

.legend-chip {
    width: 18px;
    height: 8px;
    border-radius: 999px;
    display: inline-block;
}

.legend-chip.match { background: var(--match-bg); }
.legend-chip.mismatch { background: var(--mismatch-bg); }
.legend-chip.gap { background: var(--gap-bg); }

.legend-marker {
    font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.8rem;
}

/* Export preview */

.export-options {
    font-size: 0.82rem;
    margin-bottom: 0.55rem;
}

.export-options fieldset {
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    padding: 0.45rem 0.7rem;
}

.export-options legend {
    padding: 0 0.3rem;
    font-weight: 600;
}

.export-options label {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-right: 0.8rem;
    margin-top: 0.25rem;
}

.export-preview {
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    padding: 0.7rem 0.8rem;
    background: #f9fafb;
    max-height: 320px;
    overflow: auto;
    font-size: 0.8rem;
}

/* Export doc styles */

.export-doc-title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 0.2rem;
}

.export-doc-meta {
    font-size: 0.78rem;
    color: #64748b;
    margin-bottom: 0.5rem;
}

.export-seq-block {
    margin-bottom: 0.6rem;
    padding-bottom: 0.45rem;
    border-bottom: 1px solid #e5e7eb;
}

.export-seq-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.1rem;
}

.export-seq-meta {
    font-size: 0.75rem;
    color: #64748b;
    margin-bottom: 0.2rem;
}

.export-seq-line {
    font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.78rem;
}

/* Responsive */

@media (max-width: 960px) {
    .sv-main {
        grid-template-columns: 1fr;
    }
    .sv-sidebar {
        flex-direction: row;
        overflow-x: auto;
    }
    .sv-panel {
        min-width: 240px;
    }
}

@media (max-width: 720px) {
    .sv-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.4rem;
    }
    .sv-sidebar {
        flex-direction: column;
    }
    .sv-toolbar {
        flex-wrap: wrap;
    }
    .sv-selection-info {
        margin-left: 0;
    }
}

.sv-header-logo{
    width: 100px;
    height: 52px;
    object-fit: contain;
    display: block;
}