/* ===========================================================================
   Systeme de Design — Association BIBZER.ORG
   
   Aesthetic: Fond ivoire chaleureux, serif typographique elegante (Lora) 
   pour les titres, sans-serif moderne (Inter) pour le corps et la lisibilite.
   Accents chromatiques doux (Bleu ardoise, Terracotta, Vert nature) pour
   representer la solidarite, la chaleur humaine et le potager associatif.
   =========================================================================== */

:root {
    /* Fonts */
    --f-titre: 'Lora', Georgia, serif;
    --f-corps: 'Inter', system-ui, -apple-system, sans-serif;

    /* Colors */
    --fond: #FCFAF6;        /* Ivoire chaud */
    --fond-carte: #ffffff;  /* Blanc pur pour detacher les cartes */
    --fond-doux: #FAF5EE;   /* Creme un peu plus sombre */
    
    /* Palette */
    --primary: #1B3A4B;     /* Bleu nuit profond */
    --primary-light: #EAF0F3;
    
    --accent: #E06A3B;      /* Terracotta chaleureux */
    --accent-dark: #C45124;
    --accent-light: #FDF1EB;
    
    --vert: #2D6A4F;        /* Vert potager */
    --vert-light: #EAF5EF;
    
    --bleu: #3A86C8;        /* Bleu numerique */
    --bleu-light: #EEF5FC;

    /* Text */
    --texte: #1F2937;
    --texte-doux: #4B5563;
    --texte-tenu: #9CA3AF;
    --texte-clair: #ffffff;

    /* UI Details */
    --bordure: #EAE3D9;
    --rayon: 12px;
    --rayon-large: 20px;
    --largeur-max: 76rem;
    --ombre: 0 4px 20px rgba(27, 58, 75, 0.04), 0 1px 3px rgba(27, 58, 75, 0.02);
    --ombre-hover: 0 12px 36px rgba(27, 58, 75, 0.08), 0 2px 8px rgba(27, 58, 75, 0.04);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--f-corps);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--texte);
    background-color: var(--fond);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

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

ul {
    list-style: none;
}

/* Typography elements */
h1, h2, h3, h4 {
    font-family: var(--f-titre);
    font-weight: 600;
    line-height: 1.25;
    color: var(--primary);
}

/* Sections */
.section {
    padding: 5.5rem 1.5rem;
}

.section__container {
    max-width: var(--largeur-max);
    margin: 0 auto;
}

.section__header {
    text-align: center;
    max-width: 42rem;
    margin: 0 auto 3.5rem auto;
}

.section__subtitle {
    display: inline-block;
    font-family: var(--f-corps);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.section__title {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.section__desc {
    font-size: 1.125rem;
    color: var(--texte-doux);
}

.bg-light {
    background-color: var(--fond-doux);
    border-top: 1px solid var(--bordure);
    border-bottom: 1px solid var(--bordure);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--f-corps);
    font-weight: 600;
    padding: 0.875rem 1.75rem;
    border-radius: var(--rayon);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.btn--primary {
    background-color: var(--accent);
    color: var(--texte-clair);
    box-shadow: 0 4px 14px rgba(224, 106, 59, 0.3);
}

.btn--primary:hover {
    background-color: var(--accent-dark);
    color: var(--texte-clair);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(224, 106, 59, 0.4);
}

.btn--secondary {
    background-color: var(--primary-light);
    color: var(--primary);
    border: 1px solid rgba(27, 58, 75, 0.1);
}

.btn--secondary:hover {
    background-color: var(--primary);
    color: var(--texte-clair);
    transform: translateY(-2px);
}

/* Header & Nav */
.header {
    background-color: rgba(252, 250, 246, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--bordure);
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

.header__container {
    max-width: var(--largeur-max);
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--f-corps);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.header__logo-img {
    height: 38px;
    width: auto;
}

.header__logo-text {
    letter-spacing: -0.02em;
}

.header__toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.header__toggle-bar {
    width: 100%;
    height: 2px;
    background-color: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

.header__nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header__nav-link {
    font-family: var(--f-corps);
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--texte-doux);
    position: relative;
    padding: 0.25rem 0;
}

.header__nav-link:hover,
.header__nav-link.active {
    color: var(--primary);
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
}

.header__nav-link.active::after,
.header__nav-link:hover::after {
    width: 100%;
}

.header__nav-link--cta {
    background-color: var(--primary);
    color: var(--texte-clair) !important;
    padding: 0.5rem 1.25rem;
    border-radius: var(--rayon);
    box-shadow: var(--ombre);
}

.header__nav-link--cta:hover {
    background-color: var(--accent);
    transform: translateY(-1px);
}

.header__nav-link--cta::after {
    display: none;
}

/* Hero Section */
.hero {
    padding: 4rem 1.5rem;
    background: radial-gradient(circle at 80% 20%, var(--primary-light) 0%, transparent 60%);
    border-bottom: 1px solid var(--bordure);
}

.hero__container {
    max-width: var(--largeur-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 4rem;
}

.hero__badge {
    display: inline-block;
    font-family: var(--f-corps);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    background-color: var(--accent-light);
    padding: 0.35rem 0.75rem;
    border-radius: 50px;
    margin-bottom: 1.5rem;
}

.hero__title {
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.hero__chapo {
    font-family: var(--f-corps);
    font-size: 1.25rem;
    color: var(--texte-doux);
    margin-bottom: 2.25rem;
    max-width: 38rem;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero__media {
    position: relative;
    border-radius: var(--rayon-large);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(27, 58, 75, 0.08);
    border: 1px solid var(--bordure);
}

.hero__img {
    width: 100%;
    height: auto;
    object-fit: cover;
    aspect-ratio: 4/3;
    transition: var(--transition);
}

.hero__media:hover .hero__img {
    transform: scale(1.02);
}

/* Missions Cards */
.missions__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--fond-carte);
    border: 1px solid var(--bordure);
    border-radius: var(--rayon-large);
    padding: 2.5rem;
    box-shadow: var(--ombre);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--ombre-hover);
}

.card__icon-wrapper {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.card__icon-wrapper--blue {
    background-color: var(--bleu-light);
    color: var(--bleu);
}

.card__icon-wrapper--orange {
    background-color: var(--accent-light);
    color: var(--accent);
}

.card__icon-wrapper--green {
    background-color: var(--vert-light);
    color: var(--vert);
}

.card__icon {
    width: 1.75rem;
    height: 1.75rem;
}

.card__title {
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

.card__text {
    font-size: 0.95rem;
    color: var(--texte-doux);
}

/* Official Info Section */
.officiel__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.officiel__subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.officiel__subtitle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--accent);
}

.officiel__list {
    background-color: var(--fond-carte);
    border: 1px solid var(--bordure);
    border-radius: var(--rayon-large);
    padding: 1rem 2rem;
    box-shadow: var(--ombre);
}

.officiel__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.125rem 0;
    border-bottom: 1px solid var(--bordure);
}

.officiel__item:last-child {
    border-bottom: none;
}

.officiel__label {
    font-weight: 600;
    color: var(--texte-doux);
    font-size: 0.95rem;
}

.officiel__value {
    color: var(--primary);
    font-weight: 500;
    text-align: right;
    font-size: 0.95rem;
}

.officiel__value.badge {
    background-color: var(--primary-light);
    color: var(--primary);
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.875rem;
}

.docs-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.doc-card {
    background-color: var(--fond-carte);
    border: 1px solid var(--bordure);
    border-radius: var(--rayon);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--ombre);
    transition: var(--transition);
}

.doc-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--ombre-hover);
    border-color: var(--accent);
}

.doc-card__icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 8px;
    background-color: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.doc-card__icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.doc-card__content {
    flex-grow: 1;
}

.doc-card__title {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--primary);
}

.doc-card__meta {
    font-size: 0.8rem;
    color: var(--texte-tenu);
}

.doc-card__action {
    flex-shrink: 0;
}

.btn-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent);
}

/* Gouvernance */
.gouvernance__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.dirigeant-card {
    background-color: var(--fond-carte);
    border: 1px solid var(--bordure);
    border-radius: var(--rayon-large);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--ombre);
    transition: var(--transition);
}

.dirigeant-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--ombre-hover);
}

.dirigeant-card__avatar {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    font-family: var(--f-titre);
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    border: 2px solid var(--bordure);
}

.dirigeant-card__name {
    font-size: 1.25rem;
    margin-bottom: 0.35rem;
}

.dirigeant-card__role {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    margin-bottom: 1rem;
}

.dirigeant-card__desc {
    font-size: 0.9rem;
    color: var(--texte-doux);
}

/* Contact Section */
.contact__grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 4rem;
}

.info-box {
    background-color: var(--primary);
    color: var(--texte-clair);
    border-radius: var(--rayon-large);
    padding: 3rem 2.5rem;
    box-shadow: 0 15px 35px rgba(27, 58, 75, 0.15);
    height: 100%;
}

.info-box__title {
    color: var(--texte-clair);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.info-box__text {
    font-size: 1rem;
    color: #b9c6d6;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.info-box__meta {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-box__meta-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    font-size: 0.95rem;
}

.info-box__meta-icon {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
    color: var(--accent);
}

/* Form Styling */
.contact__form-wrapper {
    background-color: var(--fond-carte);
    border: 1px solid var(--bordure);
    border-radius: var(--rayon-large);
    padding: 3rem;
    box-shadow: var(--ombre);
}

.form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 48rem) {
    .form__row {
        grid-template-columns: 1fr;
    }
}

.form__group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form__group--hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.form__label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--texte);
}

.form__input {
    font-family: var(--f-corps);
    font-size: 0.95rem;
    padding: 0.875rem 1rem;
    border-radius: var(--rayon);
    border: 1px solid var(--bordure);
    background-color: var(--fond);
    outline: none;
    transition: var(--transition);
    color: var(--texte);
    width: 100%;
}

.form__input::placeholder {
    color: var(--texte-tenu);
}

.form__input:focus {
    border-color: var(--accent);
    background-color: var(--fond-carte);
    box-shadow: 0 0 0 3px rgba(224, 106, 59, 0.15);
}

.form__select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%234B5563' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.form__checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.form__checkbox {
    width: 1.125rem;
    height: 1.125rem;
    border-radius: 4px;
    border: 1px solid var(--bordure);
    margin-top: 0.25rem;
    cursor: pointer;
}

.form__checkbox-label {
    font-size: 0.85rem;
    color: var(--texte-doux);
    cursor: pointer;
    user-select: none;
}

.form__error-message {
    display: none;
    font-size: 0.75rem;
    color: #e53e3e;
    margin-top: 0.25rem;
    font-weight: 500;
}

.form__group.has-error .form__input {
    border-color: #e53e3e;
}

.form__group.has-error .form__error-message {
    display: block;
}

.btn--submit {
    align-self: flex-start;
    width: auto;
    position: relative;
}

.btn__spinner {
    animation: rotate 2s linear infinite;
    width: 1.5rem;
    height: 1.5rem;
    margin-left: 0.75rem;
}

.btn__spinner circle {
    stroke-linecap: round;
    animation: dash 1.5s ease-in-out infinite;
}

@keyframes rotate {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes dash {
    0% {
        stroke-dasharray: 1, 150;
        stroke-dashoffset: 0;
    }
    50% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -35;
    }
    100% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -124;
    }
}

.form__status {
    padding: 1.25rem;
    border-radius: var(--rayon);
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-top: 1rem;
}

.form__status--success {
    background-color: var(--vert-light);
    border: 1px solid rgba(45, 106, 79, 0.2);
    color: var(--vert);
}

.form__status--error {
    background-color: #fff5f5;
    border: 1px solid rgba(229, 62, 62, 0.2);
    color: #c53030;
}

.form__status-icon {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

/* Footer */
.footer {
    background-color: var(--primary);
    color: var(--texte-clair);
    border-top: 1px solid var(--bordure);
    padding: 5rem 1.5rem 2rem 1.5rem;
}

.footer__container {
    max-width: var(--largeur-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 2fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--f-corps);
    font-weight: 700;
    font-size: 1.25rem;
}

.footer__logo-img {
    height: 34px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer__desc {
    font-size: 0.9rem;
    color: #b9c6d6;
    line-height: 1.6;
}

.footer__title {
    color: var(--texte-clair);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer__title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 25px;
    height: 2px;
    background-color: var(--accent);
}

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

.footer__list a {
    color: #b9c6d6;
    font-size: 0.9rem;
}

.footer__list a:hover {
    color: var(--texte-clair);
    padding-left: 4px;
}

.footer__text {
    font-size: 0.85rem;
    color: #b9c6d6;
    line-height: 1.8;
}

.footer__text strong {
    color: var(--texte-clair);
}

.footer__bottom {
    max-width: var(--largeur-max);
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.8rem;
    color: #8fa0b5;
}

/* Responsive Breakpoints */
@media (max-width: 64rem) {
    .hero__container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero__badge {
        margin-bottom: 1rem;
    }
    
    .hero__chapo {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero__actions {
        justify-content: center;
    }
    
    .hero__media {
        max-width: 32rem;
        margin: 0 auto;
    }
    
    .officiel__grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact__grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer__container {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
    
    .footer__legal {
        grid-column: span 2;
    }
}

@media (max-width: 48rem) {
    .section {
        padding: 4rem 1rem;
    }
    
    .section__header {
        margin-bottom: 2.5rem;
    }
    
    .header__toggle {
        display: flex;
    }
    
    .header__nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--fond);
        border-bottom: 1px solid var(--bordure);
        padding: 1.5rem;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        display: none;
    }
    
    .header__nav.active {
        display: block;
    }
    
    .header__nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 1.25rem;
    }
    
    .header__nav-link--cta {
        display: inline-block;
        text-align: center;
    }
    
    .footer__container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer__legal {
        grid-column: span 1;
    }
}