/* Variables CSS optimisées */
        :root {
            --primary-green: #00B04F;
            --primary-yellow: #FFCD00;
            --primary-red: #CE1126;
            --white: #FFFFFF;
            --gray-100: #F1F5F9;
            --gray-200: #E2E8F0;
            --gray-400: #94A3B8;
            --gray-600: #475569;
            --gray-700: #334155;
            --gray-900: #0F172A;
            --success: #10B981;
            --error: #EF4444;
            --radius: 12px;
            --shadow: 0 10px 25px rgba(0,0,0,0.1);
            --transition: 0.3s ease;
        }

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

        html {
            font-size: 16px;
            height: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
            background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-yellow) 50%, var(--primary-red) 100%);
            min-height: 100vh;
            min-height: 100dvh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 1rem;
            position: relative;
            overflow-x: hidden;
        }

        /* Effets d'arrière-plan simplifiés */
        body::before {
            content: '';
            position: fixed;
            top: -20%;
            left: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: float 8s ease-in-out infinite;
            z-index: 1;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-30px); }
        }

        /* Container principal simplifié */
        .auth-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: var(--radius);
            padding: 2rem;
            width: 100%;
            max-width: 400px;
            box-shadow: var(--shadow);
            position: relative;
            z-index: 10;
            transform: translateY(0);
            transition: transform var(--transition);
        }

        /* Logo simplifié */
        .logo-container {
            text-align: center;
            margin-bottom: 2rem;
        }

        .logo-container img {
            max-width: 150px;
            height: auto;
        }

        .subtitle {
            color: var(--gray-600);
            font-size: 1rem;
            line-height: 1.5;
            text-align: center;
            margin-bottom: 2rem;
        }

        /* Formulaire optimisé */
        .auth-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

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

        .input-label {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            color: var(--gray-700);
            font-size: 0.9rem;
        }

        .input-label i {
            color: var(--primary-green);
        }

        /* Input téléphone optimisé */
        .phone-input {
            display: flex;
            border: 2px solid var(--gray-200);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color var(--transition);
            background: var(--white);
        }

        .phone-input:focus-within {
            border-color: var(--primary-green);
            box-shadow: 0 0 0 3px rgba(0, 176, 79, 0.1);
        }

        .country-code {
            background: var(--gray-100);
            padding: 1rem;
            font-weight: 700;
            color: var(--primary-green);
            border-right: 1px solid var(--gray-200);
            display: flex;
            align-items: center;
            font-size: 1rem;
        }

        .phone-input input {
            flex: 1;
            padding: 1rem;
            border: none;
            outline: none;
            background: transparent;
            font-size: 1rem;
            font-weight: 500;
        }

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

        /* Conditions d'utilisation */
        .terms-section {
            margin-top: 1rem;
            margin-bottom: 0.5rem;
            text-align: center;
            font-size: 0.8rem;
            color: var(--gray-600);
            line-height: 1.4;
        }

        .terms-link {
            color: var(--primary-green);
            text-decoration: underline;
            cursor: pointer;
            font-weight: 600;
            transition: color var(--transition);
        }

        .terms-link:hover {
            color: #22c55e;
        }

        /* Header OTP simplifié */
        .otp-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .back-btn {
            background: var(--gray-100);
            border: none;
            border-radius: var(--radius);
            padding: 0.75rem;
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            color: var(--primary-green);
        }

        .back-btn:hover {
            background: var(--primary-green);
            color: var(--white);
            transform: translateX(-2px);
        }

        .otp-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gray-900);
            flex: 1;
            text-align: center;
            margin-right: 44px;
        }

        .otp-subtitle {
            text-align: center;
            color: var(--gray-600);
            margin-bottom: 2rem;
            font-size: 0.95rem;
            line-height: 1.5;
        }

        .phone-number {
            color: var(--primary-green);
            font-weight: 700;
        }

        /* OTP Inputs optimisés pour mobile */
        .otp-inputs {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 0.5rem;
            justify-content: center;
            margin-bottom: 2rem;
        }

        .otp-digit {
            width: 100%;
            height: 50px;
            border: 2px solid var(--gray-200);
            border-radius: var(--radius);
            text-align: center;
            font-size: 1.25rem;
            font-weight: 800;
            outline: none;
            transition: all var(--transition);
            background: var(--white);
            color: var(--gray-900);
        }

        .otp-digit:focus {
            border-color: var(--primary-green);
            box-shadow: 0 0 0 3px rgba(0, 176, 79, 0.1);
            transform: scale(1.05);
        }

        .otp-digit.filled {
            background: linear-gradient(135deg, var(--primary-green), #22c55e);
            color: var(--white);
            border-color: var(--primary-green);
        }

        /* Boutons optimisés */
        .btn {
            border: none;
            border-radius: var(--radius);
            padding: 1rem 1.5rem;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            min-height: 52px;
            position: relative;
            font-size: 1rem;
            font-family: inherit;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-green), #22c55e);
            color: var(--white);
            width: 100%;
            box-shadow: var(--shadow);
        }

        .btn-primary:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(0, 176, 79, 0.3);
        }

        .btn-primary:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

        .btn-text {
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary:disabled .btn-text {
            opacity: 0;
        }

        .loading-spinner {
            display: none;
            position: absolute;
            color: var(--white);
        }

        .btn-primary:disabled .loading-spinner {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .spinner {
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        /* Section de renvoi */
        .resend-section {
            text-align: center;
            margin-top: 1.5rem;
        }

        .resend-timer {
            color: var(--gray-600);
            font-size: 0.9rem;
        }

        .link-btn {
            background: none;
            border: none;
            color: var(--primary-green);
            font-weight: 700;
            cursor: pointer;
            text-decoration: underline;
            font-size: 0.9rem;
            transition: color var(--transition);
            font-family: inherit;
        }

        .link-btn:hover {
            color: #22c55e;
        }

        /* Footer */
        .footer-text {
            text-align: center;
            color: var(--gray-400);
            font-size: 0.8rem;
            margin-top: 2rem;
        }

        /* Loading overlay simplifié */
        .loading-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(8px);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 9999;
        }

        .loading-overlay.active {
            display: flex;
        }

        .loading-content {
            background: var(--white);
            border-radius: var(--radius);
            padding: 2rem;
            text-align: center;
            box-shadow: var(--shadow);
            min-width: 200px;
        }

        .loading-spinner-large {
            font-size: 2rem;
            color: var(--primary-green);
            margin-bottom: 1rem;
            animation: spin 1s linear infinite;
        }

        .loading-text {
            color: var(--gray-700);
            font-weight: 600;
        }

        /* Modale des conditions d'utilisation */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 10000;
            padding: 1rem;
        }

        .modal-overlay.active {
            display: flex;
        }

        .modal-content {
            background: var(--white);
            border-radius: var(--radius);
            padding: 2rem;
            max-width: 500px;
            max-height: 80vh;
            overflow-y: auto;
            position: relative;
            box-shadow: var(--shadow);
            width: 100%;
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid var(--gray-200);
        }

        .modal-title {
            color: var(--primary-green);
            font-size: 1.5rem;
            font-weight: 800;
        }

        .modal-close {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--gray-600);
            cursor: pointer;
            padding: 0.25rem;
            transition: color var(--transition);
        }

        .modal-close:hover {
            color: var(--gray-900);
        }

        .modal-body {
            color: var(--gray-700);
            line-height: 1.6;
            font-size: 0.95rem;
        }

        .modal-body h3 {
            color: var(--primary-green);
            margin: 1.5rem 0 0.5rem 0;
            font-size: 1.1rem;
        }

        .modal-body ul {
            margin-left: 1.5rem;
            margin-bottom: 1rem;
        }

        .modal-body li {
            margin-bottom: 0.5rem;
        }

        /* Toast notifications - Styles gérés par ToastManager.js */

        /* États d'écran */
        .screen {
            display: none;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .screen.active {
            display: block;
            opacity: 1;
        }

        /* Responsive - Tablettes */
        @media (max-width: 768px) {
            .auth-container {
                padding: 2.5rem 1.5rem;
            }

            .otp-digit {
                width: 55px;
                height: 55px;
                font-size: 22px;
            }

            .otp-inputs {
                gap: 10px;
            }
        }

        /* Responsive - Petits écrans et mobiles */
        @media (max-width: 480px) {
            body {
                padding: 0.75rem;
            }

            .auth-container {
                padding: 2rem 1.25rem;
                margin: 0 auto;
                border-radius: 16px;
                max-width: calc(100% - 1.5rem);
            }

            .logo-container img {
                max-width: 130px;
            }

            .subtitle {
                font-size: 14px;
                margin-bottom: 1.5rem;
            }

            /* Amélioration du champ téléphone sur mobile */
            .country-code {
                padding: 14px 10px;
                font-size: 14px;
            }

            .phone-input input {
                padding: 14px 12px;
                font-size: 15px;
            }

            /* Optimisation des champs OTP pour petits écrans */
            .otp-inputs {
                display: flex;
                gap: 6px;
                margin: 1.5rem 0;
                justify-content: center;
            }

            .otp-digit {
                width: 42px;
                height: 42px;
                font-size: 16px;
                border-radius: 10px;
                flex-shrink: 0;
            }

            .btn {
                padding: 14px;
                font-size: 15px;
            }

            .otp-title {
                font-size: 18px;
            }

            .modal-content {
                margin: 1rem;
                padding: 1.5rem;
            }

            .terms-section {
                font-size: 0.75rem;
            }
        }

        /* Très petits écrans (< 360px) */
        @media (max-width: 360px) {
            .auth-container {
                padding: 1.5rem 1rem;
                margin: 0 auto;
                max-width: calc(100% - 1rem);
            }

            .logo-container img {
                max-width: 110px;
            }

            .country-code {
                padding: 12px 8px;
                font-size: 13px;
            }

            .phone-input input {
                padding: 12px 10px;
                font-size: 14px;
            }

            .otp-inputs {
                gap: 4px;
            }

            .otp-digit {
                width: 36px;
                height: 36px;
                font-size: 14px;
                border-radius: 8px;
            }

            .subtitle {
                font-size: 13px;
            }

            .btn {
                padding: 12px;
                font-size: 14px;
            }
        }

        /* Animations shake pour les erreurs */
        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-5px); }
            75% { transform: translateX(5px); }
        }

        .shake {
            animation: shake 0.5s ease-in-out;
        }

        /* Réduction des animations pour l'accessibilité */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }