/* === DADSAC Modern Stylesheet === */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Open+Sans:wght@400;600&display=swap');

:root {
    /* Palette inspirée du logo et modernisée */
    --primary-green: #1B5E20;  /* Vert foncé du logo, plus profond */
    --accent-red: #D32F2F;     /* Rouge du logo, légèrement ajusté */
    --light-bg: #f9f9f9;       /* Fond très clair, presque blanc */
    --white-color: #ffffff;
    --dark-text: #212121;      /* Noir très foncé pour textes principaux */
    --medium-text: #616161;   /* Gris moyen pour textes secondaires */
    --light-grey-border: #e0e0e0; /* Bordure gris clair */
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Typographie */
    --font-family-headings: 'Poppins', sans-serif;
    --font-family-body: 'Open Sans', sans-serif;
    --base-font-size: 16px;
    --line-height-base: 1.7;

    /* Spacing */
    --spacing-unit: 1rem; /* 16px */
}

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

html {
    font-size: var(--base-font-size);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-body);
    line-height: var(--line-height-base);
    background-color: var(--light-bg);
    color: var(--dark-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

a {
    color: var(--primary-green);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-headings);
    color: var(--primary-green); /* Titres en vert principal */
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 2.8rem; margin-bottom: calc(var(--spacing-unit) * 2); font-weight: 700; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }

p {
    margin-bottom: var(--spacing-unit);
    color: var(--medium-text);
}

ul, ol {
    padding-left: calc(var(--spacing-unit) * 1.5);
    margin-bottom: var(--spacing-unit);
}

li {
    margin-bottom: calc(var(--spacing-unit) / 2);
    color: var(--medium-text);
}

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

/* --- Layout --- */
.container {
    max-width: 1140px;
    width: 90%;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-unit);
    padding-right: var(--spacing-unit);
}

main {
    flex-grow: 1;
    padding-top: calc(var(--spacing-unit) * 3);
    padding-bottom: calc(var(--spacing-unit) * 3);
}

section {
    padding: calc(var(--spacing-unit) * 3) 0;
}

/* --- Header --- */
header.main-header {
    background-color: var(--white-color);
    padding: var(--spacing-unit) 0;
    box-shadow: 0 2px 5px var(--shadow-color);
    position: sticky; /* Make header sticky */
    top: 0;
    z-index: 1000;
    width: 100%;
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap; /* Allow wrap for smaller screens */
}

header .logo img {
    height: 55px; /* Adjusted logo size */
    width: auto;
}

/* Language Switcher */
.lang-switch {
    list-style: none;
    padding: 0;
    margin: 0 0 0 var(--spacing-unit); /* Space to the left */
    display: flex;
    gap: calc(var(--spacing-unit) / 2);
    order: 2; /* Position it after logo, before nav potentially */
}

.lang-switch li a {
    color: var(--medium-text);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border: 1px solid var(--light-grey-border);
    border-radius: 4px;
    transition: all 0.3s ease;
    display: block;
}

.lang-switch li a:hover {
    background-color: var(--light-bg);
    color: var(--primary-green);
    border-color: var(--primary-green);
    text-decoration: none;
}

.lang-switch li a.active-lang {
    background-color: var(--primary-green);
    color: var(--white-color);
    border-color: var(--primary-green);
    cursor: default;
}

/* Navigation */
nav.main-nav ul {
    list-style: none;
    display: flex;
    gap: calc(var(--spacing-unit) * 1.5);
}

nav.main-nav ul li a {
    color: var(--dark-text);
    font-weight: 500; /* Medium weight for nav links */
    padding: 0.5rem 0; /* Padding top/bottom only */
    position: relative;
    transition: color 0.3s ease;
}

nav.main-nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-red);
    transition: width 0.3s ease;
}

nav.main-nav ul li a:hover,
nav.main-nav ul li a.active {
    color: var(--primary-green);
}

nav.main-nav ul li a:hover::after,
nav.main-nav ul li a.active::after {
    width: 100%;
}

/* Mobile Navigation (Basic - can be enhanced with JS) */
.menu-toggle {
    display: none; /* Hide by default on larger screens */
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: var(--spacing-unit); /* Space it from nav/logo */
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--dark-text);
    margin: 5px 0;
    transition: all 0.3s ease-in-out;
}

/* Styles for when the mobile menu is open (would be toggled by JS) */
body.mobile-menu-open nav.main-nav {
    display: block; /* Show the nav */
    position: absolute;
    top: 100%; /* Position below header */
    left: 0;
    right: 0;
    background-color: var(--white-color);
    box-shadow: 0 5px 10px var(--shadow-color);
    padding: var(--spacing-unit);
    border-top: 1px solid var(--light-grey-border);
}

body.mobile-menu-open nav.main-nav ul {
     flex-direction: column;
     align-items: center;
     gap: var(--spacing-unit);
}

body.mobile-menu-open .menu-toggle span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
body.mobile-menu-open .menu-toggle span:nth-child(2) {
    opacity: 0;
}
body.mobile-menu-open .menu-toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Footer --- */
footer.main-footer {
    background-color: var(--dark-text);
    color: var(--light-bg);
    padding: calc(var(--spacing-unit) * 2) 0;
    text-align: center;
    margin-top: auto; /* Push to bottom */
}

footer.main-footer p {
    color: var(--light-bg);
    font-size: 0.9rem;
    margin: 0;
}

footer.main-footer .contact-info {
    margin-top: var(--spacing-unit);
    font-size: 0.9rem;
}

footer.main-footer .contact-info a {
    color: var(--light-bg);
    text-decoration: underline;
}

footer.main-footer .contact-info a:hover {
    color: var(--white-color);
}

/* --- Components --- */

/* Buttons */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 0.75) calc(var(--spacing-unit) * 1.8);
    border-radius: 50px; /* Pill shape */
    font-family: var(--font-family-headings);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    background-color: #B71C1C; /* Darker red */
    border-color: #B71C1C;
    color: var(--white-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-green);
    border-color: var(--primary-green);
}

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

/* Cards */
.card {
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: 0 4px 15px var(--shadow-color);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column; /* Ensure content flows vertically */
    height: 100%; /* Make cards in a grid equal height */
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.card-body {
    padding: calc(var(--spacing-unit) * 1.5);
    flex-grow: 1; /* Allow body to grow */
}

.card-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-unit);
    color: var(--primary-green);
}

.card-text {
    color: var(--medium-text);
    font-size: 0.95rem;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.card-footer {
     padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.5);
     background-color: var(--light-bg);
     border-top: 1px solid var(--light-grey-border);
     margin-top: auto; /* Push footer to bottom of card */
}

/* Forms */
.form-group {
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.form-group label {
    display: block;
    margin-bottom: calc(var(--spacing-unit) / 2);
    font-weight: 600;
    color: var(--dark-text);
}

.form-control {
    display: block;
    width: 100%;
    padding: calc(var(--spacing-unit) * 0.75);
    font-size: 1rem;
    font-family: var(--font-family-body);
    line-height: var(--line-height-base);
    color: var(--dark-text);
    background-color: var(--white-color);
    background-clip: padding-box;
    border: 1px solid var(--light-grey-border);
    border-radius: 4px;
    transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}

.form-control:focus {
    border-color: var(--primary-green);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(27, 94, 32, 0.25); /* Green glow */
}

/* --- Specific Page Sections --- */

/* Homepage Hero */
.hero-section {
    background-size: cover;
    background-position: center center;
    color: var(--white-color);
    padding: calc(var(--spacing-unit) * 6) 0;
    position: relative;
    text-align: center;
    min-height: 70vh; /* Make hero section tall */
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background-color: rgba(0, 0, 0, 0.5); /* Dark overlay */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.hero-content h1 {
    color: var(--white-color);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-unit);
}

.hero-content .subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.3rem;
    margin-bottom: calc(var(--spacing-unit) * 2);
    font-weight: 400;
}

/* About Section (Example) */
.about-section {
    background-color: var(--white-color);
}

/* Project Grid */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 2);
}

/* Team Grid */
.team-grid {
     display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: calc(var(--spacing-unit) * 2);
}

.team-member {
    text-align: center;
}

.team-member img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto calc(var(--spacing-unit) * 1.5) auto;
    border: 4px solid var(--white-color);
    box-shadow: 0 4px 10px var(--shadow-color);
}

.team-member h4 {
    color: var(--primary-green);
    margin-bottom: calc(var(--spacing-unit) / 2);
}

.team-member .role {
     font-size: 0.9rem;
     color: var(--medium-text);
     font-weight: 600;
     display: block;
     margin-bottom: var(--spacing-unit);
}

/* Donation Section */
.donation-options {
    display: flex; 
    flex-wrap: wrap; 
    align-items: flex-start; 
    gap: calc(var(--spacing-unit) * 2); 
    margin-top: calc(var(--spacing-unit) * 1.5);
}

.donation-methods {
     flex: 1; 
     min-width: 250px; 
}

.donation-methods p strong {
    display: block; 
    margin-bottom: var(--spacing-unit);
}

.twint-qr-code {
    flex-basis: 180px; 
    text-align: center;
}

.twint-qr-code img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--light-grey-border);
    padding: var(--spacing-unit);
    margin-bottom: calc(var(--spacing-unit) / 2);
    background-color: var(--white-color);
}

.twint-qr-code p {
    font-size: 0.9em;
    color: var(--medium-text);
    margin-top: 0;
}

.banking-details {
    margin-top: calc(var(--spacing-unit) * 1.5);
    padding-top: calc(var(--spacing-unit) * 1.5);
    border-top: 1px solid var(--light-grey-border);
}

.banking-details h4 {
    margin-bottom: var(--spacing-unit);
    font-size: 1.2rem;
}

.banking-details p {
    margin-bottom: calc(var(--spacing-unit) / 2);
    line-height: 1.5;
    font-size: 0.95rem;
}

.bank-qr-code {
    flex-basis: 180px; /* Match Twint QR size */
    text-align: center;
}

.bank-qr-code img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--light-grey-border);
    padding: var(--spacing-unit);
    margin-bottom: calc(var(--spacing-unit) / 2);
    background-color: var(--white-color);
}

.bank-qr-code p {
    font-size: 0.9em;
    color: var(--medium-text);
    margin-top: 0;
}

/* --- Responsive --- */
@media (max-width: 992px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    .hero-content h1 { font-size: 3rem; }
    .hero-content .subtitle { font-size: 1.2rem; }
}

@media (max-width: 768px) {
    html { font-size: 15px; } 
    
    header .container {
        /* justify-content: space-between; */ /* Adjust for hamburger */
        position: relative; /* Needed for absolute positioning of mobile nav */
    }

    .menu-toggle {
        display: block; /* Show hamburger button on mobile */
        order: 3; /* Position hamburger after nav potentially */
    }
    
    nav.main-nav {
        display: none; /* Hide nav by default on mobile */
        width: 100%;
        order: 4; /* Ensure it's last in the flex order */
        /* Absolute positioning styles are applied via body.mobile-menu-open */
    }

    /* Remove stacking that was previously done here, handle visibility via JS toggle */
    /* nav.main-nav ul { ... } */
    /* nav.main-nav ul li a::after { display: none; } */
    
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .hero-section { padding: calc(var(--spacing-unit) * 4) 0; min-height: 50vh;}
    .hero-content h1 { font-size: 2.5rem; }
    .hero-content .subtitle { font-size: 1.1rem; }
    
    .project-grid, .team-grid {
        grid-template-columns: 1fr; /* Single column */
    }
} 

/* Section Appel à l'Adhésion */
#adhesion {
    background-color: var(--primary-green);
    color: var(--white-color);
    padding: calc(var(--spacing-unit) * 3) 0; 
}

#adhesion .container {
    text-align: center;
}

#adhesion .container h2 {
    color: var(--white-color); 
    margin-bottom: var(--spacing-unit); /* Space below title */
}

#adhesion .container p {
    color: rgba(255,255,255,0.9);
    max-width: 600px;
    margin: var(--spacing-unit) auto calc(var(--spacing-unit) * 2) auto;
    font-size: 1.1rem; 
    line-height: 1.8;
    text-align: left;
}

#adhesion .container .btn {
    background-color: var(--white-color);
    color: var(--primary-green);
    border-color: var(--white-color);
    font-weight: 600; /* Make button text bolder */
}

#adhesion .container .btn:hover {
     background-color: var(--light-bg); /* Slight change on hover */
     border-color: var(--light-bg);
     color: var(--primary-green);
}

/* Gallery Grid */
/* Styles existants pour .gallery-grid */

.gallery-item {
    /* border: 1px solid #dee2e6; */ /* Peut être enlevé si l'ombre suffit */
    overflow: hidden; 
    border-radius: 8px;
    box-shadow: 0 4px 10px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative; /* Needed for potential overlays */
    aspect-ratio: 4 / 3; /* Try to enforce an aspect ratio */
}

.gallery-item:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 15px rgba(0,0,0,0.2);
}

.gallery-item a {
    display: block;
    height: 100%; /* Make link fill the item */
}

.gallery-item img {
    width: 100%;
    height: 100%; /* Make image fill the container */
    display: block;
    object-fit: cover; /* Cover the area, cropping if needed */
    transition: transform 0.3s ease; /* Keep image transition */
}

/* Enlever l'effet de zoom sur l'image interne si le zoom est sur .gallery-item */
/* .gallery-item img:hover { 
    transform: scale(1.05);
} */

/* --- Team Member --- */