/* Variables CSS - Thème FINEX FACTURA */
    :root {
        --primary: #0284c7;
        --primary-dark: #0369a1;
        --primary-light: #0ea5e9;
        --success: #10b981;
        --danger: #ef4444;
        --warning: #f59e0b;

        --gray-50: #f9fafb;
        --gray-100: #f3f4f6;
        --gray-200: #e5e7eb;
        --gray-300: #d1d5db;
        --gray-400: #9ca3af;
        --gray-500: #6b7280;
        --gray-600: #4b5563;
        --gray-700: #374151;
        --gray-800: #1f2937;
        --gray-900: #111827;

        --bg-page: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
        --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
        --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
        --radius: 10px;
        --radius-lg: 14px;
        --radius-xl: 20px;
        --transition: all 0.25s ease;
    }

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

    body {
        font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        background: var(--bg-page);
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 20px;
        position: relative;
        overflow: hidden;
    }

    /* Formes flottantes décoratives */
    .floating-shape {
        position: absolute;
        border-radius: 50%;
        opacity: 0.1;
        animation: float 8s ease-in-out infinite;
        filter: blur(40px);
    }

    .shape-1 {
        width: 400px;
        height: 400px;
        background: linear-gradient(135deg, var(--primary-light), var(--primary));
        top: -100px;
        left: -100px;
        animation-delay: 0s;
    }

    .shape-2 {
        width: 300px;
        height: 300px;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        bottom: -50px;
        right: -50px;
        animation-delay: 2s;
    }

    .shape-3 {
        width: 250px;
        height: 250px;
        background: linear-gradient(135deg, #38bdf8, var(--primary-light));
        top: 50%;
        right: 10%;
        animation-delay: 4s;
    }

    @keyframes float {

        0%,
        100% {
            transform: translateY(0px) rotate(0deg);
        }

        50% {
            transform: translateY(-20px) rotate(5deg);
        }
    }

    /* Container principal */
    .auth-container {
        position: relative;
        z-index: 10;
        width: 100%;
        max-width: 450px;
        animation: slideIn 0.6s ease-out;
    }

    @keyframes slideIn {
        from {
            opacity: 0;
            transform: translateY(30px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* Card principale */
    .auth-card {
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        border-radius: var(--radius-xl);
        padding: 40px;
        box-shadow: var(--shadow-xl);
        border: 1px solid rgba(255, 255, 255, 0.5);
        position: relative;
    }

    .corner-decoration {
        position: absolute;
        top: 0;
        right: 0;
        width: 120px;
        height: 120px;
        background: linear-gradient(135deg, rgba(2, 132, 199, 0.1), rgba(14, 165, 233, 0.1));
        border-radius: 0 var(--radius-xl) 0 100%;
    }

    /* Header */
    .auth-header {
        text-align: center;
        margin-bottom: 32px;
        position: relative;
    }

    .logo-container {
        width: 70px;
        height: 70px;
        margin: 0 auto 20px;
        background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
        border-radius: var(--radius-lg);
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
    }

    .logo-container:hover {
        transform: rotate(5deg) scale(1.05);
    }

    .logo-container i {
        font-size: 32px;
        color: white;
    }

    .auth-header h1 {
        font-size: 28px;
        font-weight: 700;
        color: var(--gray-900);
        margin-bottom: 8px;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .auth-header p {
        color: var(--gray-600);
        font-size: 15px;
        line-height: 1.6;
    }

    /* Form */
    .auth-form {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .form-group {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .form-group label {
        font-weight: 600;
        color: var(--gray-700);
        font-size: 14px;
    }

    .input-wrapper {
        position: relative;
    }

    .input-wrapper i {
        position: absolute;
        left: 16px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--gray-400);
        font-size: 16px;
        transition: var(--transition);
    }

    .form-input {
        width: 100%;
        padding: 14px 16px 14px 44px;
        border: 2px solid var(--gray-200);
        border-radius: var(--radius);
        font-size: 15px;
        color: var(--gray-800);
        background: white;
        transition: var(--transition);
    }

    .form-input:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.1);
        transform: translateY(-2px);
    }

    .form-input:focus+i {
        color: var(--primary);
    }

    .form-input::placeholder {
        color: var(--gray-400);
    }

    /* Messages */
    .error-message,
    .success-message {
        display: none;
        padding: 12px 16px;
        border-radius: var(--radius);
        font-size: 14px;
        font-weight: 500;
        animation: fadeIn 0.3s ease;
    }

    .error-message {
        background: rgba(239, 68, 68, 0.1);
        border-left: 4px solid var(--danger);
        color: var(--danger);
    }

    .success-message {
        background: rgba(16, 185, 129, 0.1);
        border-left: 4px solid var(--success);
        color: var(--success);
    }

    .error-message.show,
    .success-message.show {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* Info box */
    .info-box {
        padding: 16px;
        background: rgba(59, 130, 246, 0.1);
        border-left: 4px solid #3b82f6;
        border-radius: var(--radius);
        color: var(--gray-700);
        font-size: 14px;
        line-height: 1.6;
        display: flex;
        gap: 12px;
        align-items: flex-start;
    }

    .info-box i {
        color: #3b82f6;
        font-size: 18px;
        flex-shrink: 0;
        margin-top: 2px;
    }

    /* Submit button */
    .submit-btn {
        padding: 16px;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: white;
        border: none;
        border-radius: var(--radius);
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
        box-shadow: var(--shadow);
        position: relative;
        overflow: hidden;
    }

    .submit-btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        transition: left 0.5s ease;
    }

    .submit-btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }

    .submit-btn:hover::before {
        left: 100%;
    }

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

    .submit-btn:disabled {
        opacity: 0.6;
        cursor: not-allowed;
        transform: none;
    }

    .submit-btn.loading {
        pointer-events: none;
    }

    .submit-btn .spinner {
        display: none;
        width: 20px;
        height: 20px;
        border: 3px solid rgba(255, 255, 255, 0.3);
        border-top-color: white;
        border-radius: 50%;
        animation: spin 0.8s linear infinite;
        margin: 0 auto;
    }

    .submit-btn.loading .spinner {
        display: block;
    }

    .submit-btn.loading .btn-text {
        display: none;
    }

    @keyframes spin {
        to {
            transform: rotate(360deg);
        }
    }

    /* Footer */
    .auth-footer {
        margin-top: 24px;
        text-align: center;
        color: var(--gray-600);
        font-size: 15px;
    }

    .auth-footer a {
        color: var(--primary);
        text-decoration: none;
        font-weight: 600;
        transition: var(--transition);
        position: relative;
    }

    .auth-footer a:hover {
        color: var(--primary-dark);
    }

    .auth-footer a::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--primary);
        transition: width 0.3s ease;
    }

    .auth-footer a:hover::after {
        width: 100%;
    }

    /* Back link */
    .back-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--primary);
        text-decoration: none;
        font-size: 14px;
        font-weight: 500;
        margin-bottom: 24px;
        transition: var(--transition);
    }

    .back-link:hover {
        color: var(--primary-dark);
        gap: 12px;
    }

    .back-link i {
        transition: var(--transition);
    }

    /* Responsive */
    @media (max-width: 500px) {
        .auth-card {
            padding: 28px;
        }

        .auth-header h1 {
            font-size: 24px;
        }

        .logo-container {
            width: 60px;
            height: 60px;
        }

        .logo-container i {
            font-size: 28px;
        }
    }