/* ==========================================================================
   style.css – accompagnement-viager.fr
   Auteur   : Site vitrine Alice Ollivier
   Version  : 1.0
   Approche : Mobile-first, institutionnel, patrimonial
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Variables CSS
   -------------------------------------------------------------------------- */
:root {
    /* Couleurs */
    --color-primary:      #0f2a47;   /* Bleu foncé profond */
    --color-primary-light:#1a3d65;   /* Bleu secondaire (hover nav) */
    --color-accent:       #f2e8b3;   /* Jaune pâle */
    --color-accent-mid:   #d4bb60;   /* Jaune doré (accents, soulignement) */
    --color-accent-dark:  #b09a3e;   /* Jaune foncé (hover boutons) */
    --color-bg:           #f8f7f2;   /* Fond crème neutre */
    --color-bg-alt:       #ffffff;   /* Sections alternées */
    --color-text:         #1e1e1e;   /* Texte principal */
    --color-text-light:   #4a4a4a;   /* Texte secondaire */
    --color-divider:      rgba(15, 42, 71, 0.12); /* Séparateurs horizontaux */
    --color-divider-gold: rgba(212, 187, 96, 0.45); /* Séparateurs dorés */

    /* Typographies */
    --font-title:  'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body:   'Source Sans Pro', Arial, Helvetica, sans-serif;

    /* Espacements */
    --space-xs:   0.5rem;
    --space-sm:   1rem;
    --space-md:   2rem;
    --space-lg:   3.5rem;
    --space-xl:   5rem;

    /* Conteneur */
    --container-max: 1100px;
    --container-pad: 1.25rem;

    /* Transitions */
    --transition: 0.25s ease;

    /* Nav */
    --nav-height: 68px;
}

/* --------------------------------------------------------------------------
   1. Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

a:hover,
a:focus {
    color: var(--color-accent-dark);
}

ul, ol {
    list-style: none;
}

/* Accessibilité : focus visible */
:focus-visible {
    outline: 2px solid var(--color-accent-mid);
    outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   2. Typographie
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
    font-family: var(--font-title);
    line-height: 1.25;
    color: var(--color-primary);
    font-weight: 700;
}

h1 {
    font-size: clamp(1.85rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h2 {
    font-size: clamp(1.45rem, 3vw, 2.1rem);
    margin-bottom: 1.25rem;
}

h3 {
    font-size: clamp(1.15rem, 2.5vw, 1.5rem);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: var(--color-text-light);
}

p:last-child {
    margin-bottom: 0;
}

strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   3. Utilitaires
   -------------------------------------------------------------------------- */
.container {
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-pad);
    padding-right: var(--container-pad);
}

/* Ligne décorative fine horizontale */
.rule {
    width: 60px;
    height: 2px;
    background: var(--color-accent-mid);
    margin-bottom: 1.5rem;
}

.rule--center {
    margin-left: auto;
    margin-right: auto;
}

/* Texte centré */
.text-center { text-align: center; }

/* Badge de section */
.section-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent-dark);
    margin-bottom: 0.6rem;
}

/* Carte/encadré */
.card {
    background: var(--color-bg-alt);
    border-left: 3px solid var(--color-accent-mid);
    padding: 1.5rem 1.75rem;
    margin-bottom: 1.5rem;
    border-radius: 0 4px 4px 0;
}

.card:last-child {
    margin-bottom: 0;
}

/* Bouton principal */
.btn {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: transparent;
    border: 2px solid var(--color-primary);
    padding: 0.65rem 1.6rem;
    cursor: pointer;
    transition: background var(--transition), color var(--transition),
                border-color var(--transition), box-shadow var(--transition);
    text-decoration: none;
    position: relative;
}

.btn::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 0;
    height: 2px;
    background: var(--color-accent-mid);
    transition: width var(--transition);
}

.btn:hover,
.btn:focus {
    background: var(--color-primary);
    color: var(--color-accent);
    border-color: var(--color-primary);
    box-shadow: 0 4px 14px rgba(15, 42, 71, 0.18);
    text-decoration: none;
}

.btn:hover::after,
.btn:focus::after {
    width: 100%;
}

/* Bouton version claire (sur fond sombre) */
.btn--light {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn--light:hover,
.btn--light:focus {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
}

/* Animation d'apparition au scroll */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in--visible {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   4. Navigation principale (sticky)
   -------------------------------------------------------------------------- */
.nav-principal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background: var(--color-primary);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.nav-principal .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Logo / Marque */
.nav-brand {
    font-family: var(--font-title);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-accent);
    text-decoration: none;
    line-height: 1.2;
    flex-shrink: 0;
    transition: color var(--transition);
}

.nav-brand span {
    display: block;
    font-size: 0.7rem;
    font-family: var(--font-body);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(242, 232, 179, 0.7);
}

.nav-brand:hover {
    color: #fff;
    text-decoration: none;
}

/* Menu navigation */
.nav-menu {
    display: none; /* mobile : masqué par défaut */
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: var(--color-primary);
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 1rem 0;
    box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.nav-menu.nav-menu--open {
    display: flex;
}

.nav-menu li {
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-menu li:last-child {
    border-bottom: none;
}

.nav-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: rgba(255,255,255,0.82);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color var(--transition), background var(--transition);
}

.nav-menu a:hover,
.nav-menu a:focus,
.nav-menu a.nav-link--active {
    color: var(--color-accent);
    background: rgba(255,255,255,0.05);
    text-decoration: none;
}

/* Lien "Contact" mis en avant dans le menu */
.nav-menu .nav-cta a {
    color: var(--color-accent);
}

/* Bouton hamburger */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 38px;
    height: 38px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    flex-shrink: 0;
}

.nav-toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

/* Desktop : menu horizontal */
@media (min-width: 900px) {
    .nav-menu {
        display: flex;
        flex-direction: row;
        position: static;
        width: auto;
        background: transparent;
        border: none;
        padding: 0;
        box-shadow: none;
        gap: 0;
    }

    .nav-menu li {
        border-bottom: none;
    }

    .nav-menu a {
        padding: 0.4rem 0.8rem;
        font-size: 0.78rem;
    }

    .nav-toggle {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   5. Hero / En-tête principale
   -------------------------------------------------------------------------- */
.hero {
    background: var(--color-primary);
    padding: calc(var(--nav-height) + 4rem) 0 4rem;
    position: relative;
    overflow: hidden;
}

/* Motif décoratif subtil derrière le hero */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 79px,
        rgba(255,255,255,0.03) 80px
    );
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
}

.hero-content .section-label {
    color: var(--color-accent);
    opacity: 0.85;
}

.hero h1 {
    color: #fff;
    margin-bottom: 0.75rem;
}

.hero h2.hero-tagline {
    font-size: clamp(1rem, 2.5vw, 1.35rem);
    color: var(--color-accent);
    font-weight: 400;
    font-style: italic;
    margin-bottom: 1.5rem;
    border-left: 3px solid var(--color-accent-mid);
    padding-left: 1rem;
}

.hero-text {
    color: rgba(255,255,255,0.75);
    font-size: 1.05rem;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

/* Carrousel hero */
.hero-carousel {
    display: none; /* visible uniquement desktop */
    position: relative;
    overflow: hidden;
    max-width: 420px;
    width: 100%;
    margin-left: auto;
    border-radius: 4px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.35);
    aspect-ratio: 3 / 4;
}

.hero-carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 1.2s ease;
}

.hero-carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

/* Filet de séparation bas héro */
.hero-divider {
    width: 100%;
    height: 0;
    border-top: 1px solid var(--color-divider-gold);
    margin-top: 4rem;
    opacity: 0.4;
}

@media (min-width: 800px) {
    .hero-inner {
        grid-template-columns: 1fr 380px;
        gap: 4rem;
    }

    .hero-carousel {
        display: block;
    }
}

/* --------------------------------------------------------------------------
   6. Sections – Structure générale
   -------------------------------------------------------------------------- */
.section {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--color-divider);
    background: var(--color-bg);
}

.section--alt {
    background: var(--color-bg-alt);
}

.section--dark {
    background: var(--color-primary);
}

.section--dark h2,
.section--dark h3,
.section--dark p {
    color: rgba(255,255,255,0.9);
}

.section--dark p {
    color: rgba(255,255,255,0.72);
}

.section--dark .rule {
    background: var(--color-accent-mid);
}

.section-header {
    margin-bottom: 2.5rem;
}

/* --------------------------------------------------------------------------
   7. Section : Qui suis-je
   -------------------------------------------------------------------------- */
.bio-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

.bio-image {
    position: relative;
}

.bio-image img {
    width: 100%;
    max-width: 340px;
    border-radius: 4px;
    object-fit: cover;
    aspect-ratio: 4 / 5;
    box-shadow: 0 8px 30px rgba(15, 42, 71, 0.18);
}

/* Cadre décoratif décalé */
.bio-image::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    right: -12px;
    bottom: -12px;
    border: 2px solid var(--color-accent-mid);
    border-radius: 4px;
    z-index: -1;
    display: none;
}

.bio-text blockquote {
    border-left: 3px solid var(--color-accent-mid);
    padding: 0.75rem 1.25rem;
    margin: 1.5rem 0;
    font-family: var(--font-title);
    font-size: 1.1rem;
    color: var(--color-primary);
    font-style: italic;
    background: rgba(242, 232, 179, 0.15);
}

@media (min-width: 768px) {
    .bio-wrap {
        grid-template-columns: 300px 1fr;
        gap: 3rem;
    }

    .bio-image::before {
        display: block;
    }
}

/* --------------------------------------------------------------------------
   8. Section : Prestations / Publics
   -------------------------------------------------------------------------- */
.prestations-intro {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 680px;
    margin-bottom: 3rem;
}

/* Grille des 4 publics */
.publics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .publics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Carte public */
.public-card {
    background: var(--color-bg-alt);
    border-top: 3px solid var(--color-primary);
    padding: 2rem 1.75rem;
    transition: box-shadow var(--transition), transform var(--transition);
}

.public-card:hover {
    box-shadow: 0 6px 24px rgba(15, 42, 71, 0.12);
    transform: translateY(-3px);
}

.public-card h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-divider-gold);
}

.public-card p {
    font-size: 0.95rem;
}

/* Section individuelle de chaque public (ancres détaillées) */
.public-section {
    padding: var(--space-md) 0;
    border-top: 1px solid var(--color-divider);
}

.public-section:first-child {
    border-top: none;
}

/* --------------------------------------------------------------------------
   9. Section : Confidentialité & Indépendance
   -------------------------------------------------------------------------- */
.independance-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.independance-image img {
    width: 100%;
    border-radius: 4px;
    object-fit: cover;
    aspect-ratio: 16 / 9;
    box-shadow: 0 6px 20px rgba(15, 42, 71, 0.15);
}

.independance-note {
    background: rgba(242, 232, 179, 0.2);
    border: 1px solid var(--color-accent-mid);
    border-radius: 4px;
    padding: 1.25rem 1.5rem;
    margin-top: 1.5rem;
}

.independance-note p {
    font-size: 0.95rem;
    margin: 0;
    color: var(--color-primary);
}

.independance-note strong {
    color: var(--color-primary);
}

@media (min-width: 768px) {
    .independance-wrap {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

/* --------------------------------------------------------------------------
   10. Section : Déroulement de l'accompagnement
   -------------------------------------------------------------------------- */
.deroulement-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    counter-reset: step-counter;
}

@media (min-width: 640px) {
    .deroulement-steps {
        grid-template-columns: repeat(3, 1fr);
    }
}

.step {
    counter-increment: step-counter;
    background: var(--color-bg-alt);
    padding: 1.5rem 1.5rem 1.5rem 1.5rem;
    position: relative;
    border-bottom: 3px solid var(--color-accent-mid);
}

.step::before {
    content: counter(step-counter, decimal-leading-zero);
    display: block;
    font-family: var(--font-title);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent-mid);
    line-height: 1;
    margin-bottom: 0.5rem;
    opacity: 0.5;
}

.step h3 {
    font-size: 1rem;
    margin-bottom: 0.4rem;
}

.step p {
    font-size: 0.9rem;
    margin: 0;
}

/* Image déco déroulement */
.deroulement-image {
    margin-top: 2.5rem;
}

.deroulement-image img {
    width: 100%;
    border-radius: 4px;
    object-fit: cover;
    max-height: 320px;
    box-shadow: 0 6px 20px rgba(15, 42, 71, 0.12);
}

/* --------------------------------------------------------------------------
   11. Section : Tarifs
   -------------------------------------------------------------------------- */
.tarifs-block {
    background: var(--color-accent);
    border-radius: 4px;
    padding: 2rem 2.5rem;
    max-width: 560px;
    border-left: 4px solid var(--color-primary);
}

.tarifs-block h3 {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.tarifs-block p {
    color: var(--color-primary);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
}

/* --------------------------------------------------------------------------
   12. Section : Formulaire de contact
   -------------------------------------------------------------------------- */
.contact-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 768px) {
    .contact-wrap {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

.contact-info p {
    font-size: 0.95rem;
}

.contact-info .contact-email {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: 0.5rem;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: border-color var(--transition);
}

.contact-info .contact-email:hover {
    border-bottom-color: var(--color-accent-mid);
    color: var(--color-primary);
    text-decoration: none;
}

/* Formulaire */
.section--dark .form-group label {
    color: rgba(255, 255, 255, 0.88);
}

.section--dark .form-group .required-star {
    color: #ff9090;
}
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 0.35rem;
}

.form-group .required-star {
    color: #b33;
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 0.7rem 1rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-bg-alt);
    border: 1px solid rgba(15, 42, 71, 0.25);
    border-radius: 2px;
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15, 42, 71, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 130px;
}

/* Messages de retour */
.form-feedback {
    padding: 0.9rem 1.2rem;
    border-radius: 2px;
    margin-bottom: 1.25rem;
    font-size: 0.92rem;
    font-weight: 500;
}

.form-feedback--success {
    background: #e8f5e8;
    border: 1px solid #5a9e5a;
    color: #2d5a2d;
}

.form-feedback--error {
    background: #fbeaea;
    border: 1px solid #c26060;
    color: #7a2020;
}

/* --------------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------------- */
.footer {
    background: var(--color-primary);
    color: rgba(255,255,255,0.6);
    border-top: 3px solid var(--color-accent-mid);
    padding: 2.5rem 0;
    font-size: 0.85rem;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    text-align: center;
}

@media (min-width: 640px) {
    .footer-inner {
        grid-template-columns: 1fr auto 1fr;
        text-align: left;
        align-items: center;
    }
    .footer-center {
        text-align: center;
    }
    .footer-right {
        text-align: right;
    }
}

.footer-brand {
    font-family: var(--font-title);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
    display: block;
}

.footer a {
    color: rgba(255,255,255,0.55);
    transition: color var(--transition);
}

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

.footer-siren {
    display: inline-block;
    margin-top: 0.3rem;
    font-size: 0.8rem;
    letter-spacing: 0.04em;
}

.footer-copy {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.38);
    margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   14. Filet séparateur décoratif entre sections majeures
   -------------------------------------------------------------------------- */
.section-rule {
    display: block;
    width: 100%;
    height: 0;
    border: none;
    border-top: 1px solid var(--color-divider);
    margin: 0;
}

.section-rule--gold {
    border-top: 1px solid var(--color-divider-gold);
}

/* --------------------------------------------------------------------------
   15. Barre de progression lecture (cosmétique)
   -------------------------------------------------------------------------- */
.read-progress {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    height: 2px;
    background: var(--color-accent-mid);
    width: 0%;
    z-index: 999;
    transition: width 0.1s linear;
}

/* --------------------------------------------------------------------------
   16. Media queries supplémentaires
   -------------------------------------------------------------------------- */
@media (max-width: 400px) {
    :root {
        --container-pad: 1rem;
    }

    h1 {
        font-size: 1.65rem;
    }
}

@media (min-width: 1200px) {
    :root {
        --space-lg: 5rem;
    }
}

/* --------------------------------------------------------------------------
   17. Print
   -------------------------------------------------------------------------- */
@media print {
    .nav-principal,
    .nav-toggle,
    .read-progress,
    .hero-actions,
    .btn {
        display: none !important;
    }

    body {
        font-size: 11pt;
        color: #000;
    }

    h1, h2, h3 {
        color: #000;
    }

    .section {
        padding: 1.5rem 0;
    }
}

/* ------------------------------------------------
   Bio badge  diplôme / certification
   ------------------------------------------------ */
.bio-badge {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    background: linear-gradient(135deg, rgba(212,187,96,0.15), rgba(212,187,96,0.08));
    border: 1px solid var(--color-accent-mid);
    border-left: 4px solid var(--color-accent-mid);
    border-radius: 4px;
    padding: 1rem 1.25rem;
    margin: 1.25rem 0;
    font-size: 0.95rem;
    color: var(--color-primary);
    font-weight: 600;
}

.bio-badge-icon {
    width: 22px;
    height: 22px;
    color: var(--color-accent-dark);
    flex-shrink: 0;
    margin-top: 2px;
}