/* Réinitialisation basique */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

/* Style du header */
header {
    background-color: #2c3e50;
    padding: 1rem;
    text-align: center;
}

header nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
}

header nav a:hover {
    color: #3498db;
}

/* Contenu principal */
main {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

/* Formulaire */
form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 400px;
    margin: 0 auto;
}

label {
    font-weight: bold;
    color: #34495e;
}

input[type="email"],
input[type="password"] {
    padding: 10px;
    border: 1px solid #bdc3c7;
    border-radius: 5px;
    font-size: 16px;
}

button {
    background-color: #3498db;
    color: white;
    padding: 10px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #2980b9;
}

/* Messages */
.success {
    color: #27ae60;
    text-align: center;
    margin: 20px 0;
}

.error {
    color: #c0392b;
    text-align: center;
    margin: 20px 0;
}

/* Liens */
a {
    color: #3498db;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}

/* Style du tableau de bord */
.dashboard {
    text-align: center;
    padding: 20px;
    background-color: #ecf0f1;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    margin: 20px auto;
}

.dashboard p {
    margin: 10px 0;
    font-size: 18px;
}

.dashboard strong {
    color: #2c3e50;
}

/* Style des boutons d'action */
.actions {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.button {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 16px;
}

.button:hover {
    background-color: #2980b9;
}

.button.logout {
    background-color: #c0392b;
}

.button.logout:hover {
    background-color: #992d22;
}

/* Liste des publicités */
.ads-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 600px;
    margin: 20px auto;
}

.ad {
    background-color: #fff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.ad h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.ad p {
    margin-bottom: 10px;
    font-size: 16px;
}

/* Style de la page d'achat de pub */
.buy-ad {
    max-width: 500px;
    margin: 20px auto;
    background-color: #ecf0f1;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.buy-ad p {
    margin-bottom: 15px;
}

/* Style de la bourse */
.exchange {
    max-width: 700px;
    margin: 20px auto;
    padding: 20px;
    background-color: #ecf0f1;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.exchange h2 {
    color: #2c3e50;
    margin: 20px 0 10px;
}

.exchange form {
    max-width: 100%;
}

/* Liste des offres */
.offers-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.offer {
    background-color: #fff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.offer p {
    margin: 5px 0;
}

.offer form {
    margin-top: 10px;
}

/* Style de la vue de pub */
.ad-viewer {
    max-width: 800px;
    margin: 20px auto;
    text-align: center;
}

.ad-viewer iframe {
    margin-top: 10px;
    border: 1px solid #bdc3c7;
    border-radius: 5px;
}

#timer {
    font-size: 18px;
    margin: 10px 0;
    color: #2c3e50;
}

#countdown {
    font-weight: bold;
    color: #3498db;
}

/* Style de la surfbar */
.surfbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #2c3e50;
    color: white;
    padding: 10px;
    text-align: center;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.surfbar h1 {
    color: white;
    font-size: 20px;
    margin: 5px 0;
}

.surfbar p {
    font-size: 16px;
    margin: 5px 0;
}

.surfbar #countdown {
    font-weight: bold;
    color: #3498db;
}

.surfbar .button {
    background-color: #3498db;
    margin: 5px;
    padding: 5px 15px;
}

.surfbar #message {
    margin-top: 5px;
}

/* Style de l'iframe pleine page */
.full-ad {
    position: absolute;
    top: 100px; /* Hauteur estimée de la surfbar, ajustable */
    left: 0;
    width: 100%;
    height: calc(100vh - 100px); /* 100% de la hauteur de l’écran moins la surfbar */
    border: none;
    margin: 0;
    padding: 0;
}

.buy-ad {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.buy-ad form {
    display: grid;
    gap: 15px;
}

.user-ads {
    display: grid;
    gap: 15px;
    margin-top: 30px;
}

.user-ads .ad {
    padding: 15px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.user-ads .ad h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

/* Page d'accueil */
.homepage {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.hero {
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
    color: white;
    padding: 4rem 2rem;
    border-radius: 15px;
    text-align: center;
    margin-bottom: 3rem;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.cta-button {
    background: #fff;
    color: #2c3e50;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.cta-button.secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.cta-button:hover {
    transform: translateY(-2px);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.stats-preview {
    background: #f8f9fa;
    padding: 3rem 2rem;
    border-radius: 15px;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

.stat-item {
    background: #fff;
    padding: 1.5rem;
    border-radius: 10px;
}

.stat-value {
    font-size: 2.5rem;
    color: #3498db;
    font-weight: bold;
}

.stat-label {
    color: #7f8c8d;
}

.see-more {
    color: #3498db;
    text-decoration: none;
    font-weight: bold;
}

/* Admin */
.admin-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 1rem;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.logout-btn {
    background: #c0392b;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.card {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.status-active {
    color: #27ae60;
}

.status-inactive {
    color: #c0392b;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.btn-toggle, .btn-update {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
}

.inline-form {
    display: flex;
    gap: 0.5rem;
}

/* Styles pour la gestion des clics */
.ad-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.cooldown {
    color: #e74c3c;
    font-weight: bold;
}

.ad-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
}

.ad-iframe {
    width: 100%;
    height: 500px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

#timer {
    font-size: 1.2em;
    text-align: center;
    margin: 20px 0;
    color: #2c3e50;
}