/* style.css - Style pour l'interface principale */

:root {
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --secondary-color: #10b981;
    --light-color: #f9fafb;
    --dark-color: #1f2937;
    --gray-color: #6b7280;
    --light-gray: #e5e7eb;
    --border-radius: 8px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family:
        "Segoe UI",
        system-ui,
        -apple-system,
        sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--gray-color);
    font-size: 1.1rem;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .main-content {
        grid-template-columns: 1fr 1fr;
    }
}

.upload-section,
.preview-section {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.upload-section:hover,
.preview-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.section-title i {
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.file-input-wrapper {
    position: relative;
    display: block;
}

.file-input {
    width: 100%;
    padding: 1rem;
    border: 2px dashed var(--light-gray);
    border-radius: var(--border-radius);
    background-color: var(--light-color);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    color: var(--gray-color);
}

.file-input:hover {
    border-color: var(--primary-color);
    background-color: rgba(79, 70, 229, 0.05);
}

.file-input input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-name {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-size: 1rem;
    width: 100%;
}

.btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: #0da271;
}

.btn-group {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.conv {
    border: 0;
    line-height: 2.5;
    padding: 0.75rem 1.5rem !important;
    text-decoration: none;
    font-size: 1rem;
    text-align: center;
    color: #fff;
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--primary-color);
}

.conv:hover {
    background-color: var(--primary-dark);
}

.preview-container {
    min-height: 200px;
    max-height: 400px;
    overflow-y: auto;
    padding: 1rem;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--light-gray);
    margin-top: 1rem;
}

.preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--gray-color);
    text-align: center;
}

.preview-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--light-gray);
}

.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: none;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature {
    background-color: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-5px);
}

.feature i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.feature p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

footer {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem 0;
    color: var(--gray-color);
    font-size: 0.9rem;
    border-top: 1px solid var(--light-gray);
}

/* Icons (using Unicode or emoji as fallback) */
.icon::before {
    content: "📄";
    margin-right: 0.5rem;
}

.upload-icon::before {
    content: "📤";
}

.preview-icon::before {
    content: "👁️";
}

.download-icon::before {
    content: "⬇️";
}

.view-icon::before {
    content: "👁️";
}