/* Variables de couleur pour une maintenance facile */
:root {
    --primary-blue: #083b71;
    --dark-blue: #040707;
    --background-light: #edeeef;
    --text-dark: #0a2541;
    --text-secondary: #555555;
    --white: #FFFFFF;
    --border-light: #e0e0e0;
    --success-green: #c00f59;
    --info-blue: #17a2b8;
    --danger-red: #dc3545;
    --secondary-gray: #6c757d;
    --ies-pink: #c60053;
    --ies-blue: #01264e;
    --login-bg: #f7f9fc;
    --login-white: #ffffff;
    --login-border: #e2e7ed;
    --login-text: #1c2938;
    --login-muted: #748092;
}

/* Style de base pour le conteneur principal de l'application */
.app-container {
    background-color: var(--background-light);
    color: var(--text-dark);
    min-height: 100vh;
    font-family: 'Inter', sans-serif;
    display: flex;
    flex-direction: column;
}

/* En-tête générique de l'application */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 2.5rem;
    background-color: var(--white);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.logo-header {
    height: 55px;
    width: auto;
}

.date-display {
    font-size: 1rem;
    font-weight: 400;
    margin-left: 20px;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.btn-start-custom {
    background-color: var(--primary-blue);
    color: var(--white);
    border: 2px solid var(--primary-blue);
    padding: 0.8rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease-in-out;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-start-custom .bi {
    margin-right: 10px;
    font-size: 1.2rem;
    vertical-align: middle;
}

.btn-start-custom:hover {
    background-color: var(--dark-blue);
    border-color: var(--dark-blue);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 115, 168, 0.3);
}

/* Styles généraux pour le texte */
.lead-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.black-text {
    font-size: 1.2rem;
    color: black;
    font-weight: 300;
}
.separator {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, transparent, var(--border-light), transparent);
    margin: 1rem 0;
}

.instruction-text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.header-right-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-primary {
    background-color: #c58a8a;
    border: none;
}
.btn-primary:hover {
    background-color: #ec7171;
    border: none;
}
/* Responsive général */
@media (max-width: 768px) {
    .app-header {
        padding: 1rem 1.5rem;
    }
}