/* variables de design system */
:root {
    --dark-blue: #202a51;
    --cyan: #00b3d4;
    --light-blue: #6cc6e2;
    --very-light-blue: #dbeff7;
    --white: #ffffff;
    --gray-bg: #f8fafc;
    --border-color: #cbd5e1;
    --error-color: #ef4444;
    --error-bg: #fef2f2;
    --success-color: #10b981;
    --success-bg: #ecfdf5;
    --text-color: #334155;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset global */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--very-light-blue);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem 1rem;
}

/* Conteneur principal */
.app-container {
    width: 100%;
    max-width: 850px;
    margin: 0 auto;
}

/* Carte centrale */
.card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 25px -5px rgba(32, 42, 81, 0.1), 0 8px 10px -6px rgba(32, 42, 81, 0.05);
    border: 1px solid rgba(108, 198, 226, 0.2);
    padding: 2.5rem;
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* En-tête */
.card-header {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

.escen-logo {
    display: block;
    max-width: 300px;
    max-height: 140px;
    width: auto;
    margin: 0 auto 1.5rem auto;
}

.card-header h1 {
    color: var(--dark-blue);
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    letter-spacing: -0.025em;
}

.card-header .subtitle {
    color: var(--text-color);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 1.5rem auto;
    font-weight: 500;
}

.intro-box {
    background-color: var(--gray-bg);
    border-left: 4px solid var(--light-blue);
    padding: 1rem 1.5rem;
    border-radius: 4px;
    text-align: left;
    max-width: 720px;
    margin: 0 auto;
}

.intro-box p {
    font-size: 0.95rem;
    color: #475569;
}

/* Messages d'état */
.status-message {
    padding: 1rem 1.25rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    font-weight: 600;
    display: none;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.status-message.success {
    display: flex;
    background-color: var(--success-bg);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-message.error {
    display: flex;
    background-color: var(--error-bg);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Formulaire et grille */
form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

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

.form-group.full-width {
    grid-column: span 2;
}

/* Labels */
label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--dark-blue);
    letter-spacing: -0.01em;
}

.required {
    color: var(--error-color);
}

/* Inputs, Selects et Textarea */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
select,
textarea {
    font-family: inherit;
    font-size: 0.95rem;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--white);
    color: var(--text-color);
    transition: var(--transition);
    width: 100%;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 0 4px rgba(0, 179, 212, 0.15);
}

textarea {
    resize: vertical;
}

/* Message d'erreur sous l'input */
.error-text {
    color: var(--error-color);
    font-size: 0.8rem;
    font-weight: 500;
    display: none;
    margin-top: 0.25rem;
}

.form-group.invalid input,
.form-group.invalid select,
.form-group.invalid textarea,
.file-upload-box.invalid {
    border-color: var(--error-color);
    background-color: var(--error-bg);
}

.form-group.invalid .error-text,
.file-upload-box.invalid .error-text {
    display: block;
}

/* Section Documents */
.documents-section {
    border: 1px solid var(--border-color);
    background-color: var(--gray-bg);
    border-radius: var(--border-radius);
    padding: 1.75rem;
    margin: 1rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.documents-section h3 {
    color: var(--dark-blue);
    font-size: 1.2rem;
    font-weight: 700;
}

.documents-info {
    font-size: 0.9rem;
    color: #475569;
}

/* Zone d'upload intégrée */
.file-upload-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.file-upload-box {
    border: 2px dashed var(--light-blue);
    background-color: var(--white);
    border-radius: 8px;
    padding: 1.25rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.file-upload-box:hover {
    border-color: var(--cyan);
    background-color: rgba(219, 239, 247, 0.15);
}

.file-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    width: 100%;
}

.file-label .file-icon-svg {
    stroke: var(--light-blue);
    width: 32px;
    height: 32px;
    margin-bottom: 0.25rem;
    transition: var(--transition);
}

.file-upload-box:hover .file-icon-svg {
    stroke: var(--cyan);
    transform: scale(1.05);
}

.file-upload-box.has-file .file-icon-svg {
    stroke: var(--success-color);
}

.file-label .title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--dark-blue);
}

.file-label .file-name {
    font-size: 0.8rem;
    color: #64748b;
    font-style: italic;
    word-break: break-all;
    max-width: 100%;
    margin-top: 0.25rem;
}

.file-upload-box.has-file {
    border-style: solid;
    border-color: var(--success-color);
    background-color: rgba(16, 185, 129, 0.03);
}

.file-upload-box.has-file .file-name {
    color: var(--success-color);
    font-weight: 600;
}

/* Boutons */
.btn-primary {
    background-color: var(--cyan);
    color: var(--white);
    border: none;
    padding: 0.9rem 2rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 6px -1px rgba(0, 179, 212, 0.2), 0 2px 4px -1px rgba(0, 179, 212, 0.1);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.btn-primary:hover {
    background-color: #009cb9;
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(0, 179, 212, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Pied du formulaire */
.form-actions {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

/* Responsiveness */
@media (max-width: 768px) {
    .form-grid, .file-upload-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .card-header h1 {
        font-size: 1.8rem;
    }
}