/* ==========================================================================
   SARANGE — Signature Électronique de Devis
   Styles personnalisés basés sur la charte graphique Sarange
   ========================================================================== */

/* --- Import de la typographie officielle --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;900&display=swap');

/* --- Variables CSS (Charte Sarange) --- */
:root {
    --sarange-orange: #F97316;
    /* Orange Action — CTA, accents */
    --sarange-orange-hover: #EA580C;
    /* Orange 600 — Hover du CTA */
    --sarange-orange-light: #FFF7ED;
    /* Orange 50 — Fond léger orange */
    --sarange-orange-100: #FFEDD5;
    /* Orange 100 — Fond checkbox hover */
    --sarange-slate-900: #0F172A;
    /* Slate Dark — Textes principaux */
    --sarange-slate-700: #334155;
    /* Slate 700 — Textes secondaires */
    --sarange-slate-500: #64748B;
    /* Slate 500 — Textes descriptifs */
    --sarange-slate-300: #CBD5E1;
    /* Slate 300 — Bordures subtiles */
    --sarange-slate-200: #E2E8F0;
    /* Slate 200 — Bordures de carte */
    --sarange-slate-100: #F1F5F9;
    /* Slate 100 — Fond canvas signature */
    --sarange-slate-50: #F8FAFC;
    /* Slate 50 — Fond de page */
    --sarange-white: #FFFFFF;
    /* Blanc — Fond de carte */
    --sarange-green-500: #22C55E;
    /* Vert succès */
    --sarange-green-50: #F0FDF4;
    /* Fond succès */
    --sarange-red-500: #EF4444;
    /* Rouge erreur */
    --sarange-red-50: #FEF2F2;
    /* Fond erreur */
    --font-family: 'Inter', sans-serif;
}

/* --- Reset de base --- */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--sarange-slate-50);
    color: var(--sarange-slate-900);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- CARD PRINCIPALE --- */
.signature-card {
    background-color: var(--sarange-white);
    border: 1px solid var(--sarange-slate-200);
    border-radius: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

/* --- EN-TÊTE avec logo --- */
.card-header {
    background-color: var(--sarange-slate-900);
    padding: 1.5rem 1.5rem;
    text-align: center;
}

.card-header .logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.card-header .page-title {
    color: var(--sarange-slate-300);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.025em;
    margin: 0;
}

/* --- Barre bicolore séparatrice (orange + slate) --- */
.bicolor-separator {
    display: flex;
    height: 4px;
    width: 100%;
}

.bicolor-separator .sep-orange {
    flex: 1;
    background-color: var(--sarange-orange);
}

.bicolor-separator .sep-slate {
    flex: 1;
    background-color: var(--sarange-slate-300);
}

/* --- ZONE D'INFORMATION CLIENT --- */
.client-info-section {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--sarange-slate-200);
}

.info-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background-color: var(--sarange-slate-100);
    color: var(--sarange-slate-700);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    margin: 0.25rem 0.25rem;
}

.info-badge .badge-icon {
    color: var(--sarange-orange);
    flex-shrink: 0;
}

/* --- ZONE D'ERREUR --- */
.error-zone {
    display: none;
    /* Masquée par défaut, montrée par JS si besoin */
    background-color: var(--sarange-red-50);
    border: 1px solid #FECACA;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin: 1.5rem;
    text-align: center;
}

.error-zone .error-icon {
    color: var(--sarange-red-500);
    margin-bottom: 0.75rem;
}

.error-zone .error-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--sarange-red-500);
    margin: 0 0 0.5rem 0;
}

.error-zone .error-text {
    font-size: 0.875rem;
    color: var(--sarange-slate-500);
    margin: 0;
    line-height: 1.5;
}

/* --- CANVAS DE SIGNATURE --- */
.signature-section {
    padding: 1.5rem;
}

.signature-label {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--sarange-slate-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.canvas-wrapper {
    position: relative;
    border: 2px dashed var(--sarange-slate-300);
    border-radius: 0.75rem;
    overflow: hidden;
    background-color: var(--sarange-slate-100);
    transition: border-color 0.2s ease;
}

.canvas-wrapper:hover,
.canvas-wrapper.is-drawing {
    border-color: var(--sarange-orange);
}

/* ============================================================
   CRITIQUE MOBILE : Empêche le scroll de la page pendant
   que l'utilisateur dessine sa signature avec le doigt.
   ============================================================ */
#signature-canvas {
    display: block;
    width: 100%;
    height: 200px;
    cursor: crosshair;
    touch-action: none;
    background-color: transparent;
}

/* Placeholder visuel dans le canvas */
.canvas-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--sarange-slate-300);
    font-size: 0.875rem;
    font-weight: 500;
    pointer-events: none;
    white-space: nowrap;
    transition: opacity 0.2s ease;
}

.canvas-placeholder.is-hidden {
    opacity: 0;
}

/* --- CHECKBOX D'ACCEPTATION --- */
.checkbox-section {
    padding: 0 1.5rem 1.5rem 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.875rem 1rem;
    border: 1px solid var(--sarange-slate-200);
    border-radius: 0.75rem;
    transition: all 0.2s ease;
    user-select: none;
    -webkit-user-select: none;
}

.checkbox-label:hover {
    background-color: var(--sarange-orange-light);
    border-color: var(--sarange-orange);
}

.checkbox-label input[type="checkbox"] {
    /* Checkbox agrandie pour le tactile */
    width: 1.375rem;
    height: 1.375rem;
    min-width: 1.375rem;
    margin-top: 0.125rem;
    accent-color: var(--sarange-orange);
    cursor: pointer;
    border-radius: 0.25rem;
}

.checkbox-text {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--sarange-slate-700);
    font-weight: 500;
}

/* --- BOUTONS --- */
.buttons-section {
    padding: 0 1.5rem 1.5rem 1.5rem;
    display: flex;
    gap: 0.75rem;
}

/* Bouton secondaire (Effacer) */
.btn-secondary {
    flex-shrink: 0;
    padding: 0.75rem 1.25rem;
    background-color: var(--sarange-white);
    color: var(--sarange-slate-700);
    border: 1px solid var(--sarange-slate-200);
    border-radius: 9999px;
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.btn-secondary:hover {
    background-color: var(--sarange-slate-100);
    border-color: var(--sarange-slate-300);
}

.btn-secondary:active {
    transform: scale(0.97);
}

/* Bouton principal (Valider et Signer) — Style CTA Sarange */
.btn-primary {
    flex: 1;
    padding: 0.875rem 1.5rem;
    background-color: var(--sarange-orange);
    color: var(--sarange-white);
    border: none;
    border-radius: 9999px;
    font-family: var(--font-family);
    font-size: 0.9375rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 50px;
    /* Facile à toucher sur mobile */
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--sarange-orange-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0) scale(0.98);
}

/* État désactivé */
.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

/* --- SPINNER DE CHARGEMENT --- */
.spinner {
    display: inline-block;
    width: 1.125rem;
    height: 1.125rem;
    border: 2.5px solid rgba(255, 255, 255, 0.4);
    border-top-color: var(--sarange-white);
    border-radius: 50%;
    animation: spin 0.65s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* --- ZONE DE SUCCÈS --- */
.success-zone {
    display: none;
    /* Masquée par défaut, montrée par JS */
    text-align: center;
    padding: 3rem 1.5rem;
}

.success-icon-wrapper {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    background-color: var(--sarange-green-50);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes scaleIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.success-icon-wrapper svg {
    color: var(--sarange-green-500);
}

.success-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--sarange-slate-900);
    margin: 0 0 0.5rem 0;
}

.success-text {
    font-size: 0.9375rem;
    color: var(--sarange-slate-500);
    margin: 0;
    line-height: 1.6;
    max-width: 28rem;
    display: inline-block;
}

.success-devis-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    margin-top: 1.25rem;
    background-color: var(--sarange-slate-100);
    color: var(--sarange-slate-700);
    font-size: 0.8125rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
}

/* --- FOOTER --- */
.page-footer {
    text-align: center;
    padding: 1.5rem 1rem;
    color: var(--sarange-slate-500);
    font-size: 0.75rem;
}

.page-footer a {
    color: var(--sarange-orange);
    font-weight: 600;
    text-decoration: none;
}

.page-footer a:hover {
    text-decoration: underline;
}

/* --- ZONE "DÉJÀ SIGNÉ" --- */
.already-signed-zone {
    display: none;
    /* Masquée par défaut, montrée par JS */
    text-align: center;
    padding: 3rem 1.5rem;
}

.already-signed-icon-wrapper {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    background-color: var(--sarange-green-50);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.already-signed-icon-wrapper svg {
    color: var(--sarange-green-500);
}

.already-signed-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--sarange-green-500);
    margin: 0 0 0.5rem 0;
}

.already-signed-text {
    font-size: 0.9375rem;
    color: var(--sarange-slate-500);
    margin: 0;
    line-height: 1.6;
    max-width: 28rem;
    display: inline-block;
}

.already-signed-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    margin-top: 1.25rem;
    background-color: var(--sarange-green-50);
    color: var(--sarange-green-500);
    font-size: 0.8125rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    border: 1px solid #BBF7D0;
}

/* --- LAYOUT FORMULAIRE (2 colonnes sur desktop) --- */
.form-layout {
    display: flex;
    flex-direction: column;
    gap: 0;
}

@media (min-width: 768px) {
    .form-layout {
        flex-direction: row;
        gap: 0;
    }
}

/* --- Colonne Signature --- */
.signature-column {
    flex: 1;
    min-width: 0;
}

/* --- SECTION VISUALISATION PDF --- */
.pdf-viewer-section {
    padding: 1.5rem;
    flex: 1.3;
    min-width: 0;
}

@media (min-width: 768px) {
    .pdf-viewer-section {
        border-right: 1px solid var(--sarange-slate-200);
    }
}

.pdf-viewer-label {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--sarange-slate-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pdf-viewer-container {
    border-radius: 0.75rem;
    border: 1px solid var(--sarange-slate-200);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    background-color: var(--sarange-slate-100);
}

.pdf-viewer-container iframe {
    display: block;
    width: 100%;
    height: 50vh;
    border: none;
}

@media (min-width: 768px) {
    .pdf-viewer-container iframe {
        height: 70vh;
    }
}

/* --- BOUTON TÉLÉCHARGEMENT PDF --- */
.btn-download-pdf {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    margin-top: 0.75rem;
    padding: 0.75rem 1.25rem;
    background-color: var(--sarange-slate-100);
    color: var(--sarange-slate-900);
    border: 1px solid var(--sarange-slate-200);
    border-radius: 9999px;
    font-family: var(--font-family);
    font-size: 0.8125rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-download-pdf:hover {
    background-color: var(--sarange-slate-200);
    border-color: var(--sarange-slate-300);
    color: var(--sarange-slate-900);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.btn-download-pdf:active {
    transform: scale(0.98);
}

.btn-download-pdf svg {
    color: var(--sarange-orange);
    flex-shrink: 0;
}

/* --- UTILITAIRES --- */
.hidden {
    display: none !important;
}