* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', 'Segoe UI', sans-serif;
        }

        body {
            min-height: 100vh;
            background: linear-gradient(135deg, #1a4645, #0f766e);
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            position: relative;
            overflow: hidden;
        }

        .background-shapes {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 1;
        }

        .shape {
            position: absolute;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            animation: float 20s infinite linear;
        }

        .shape:nth-child(1) { width: 10vw; height: 10vw; left: 10%; animation-delay: 0s; }
        .shape:nth-child(2) { width: 15vw; height: 15vw; right: 15%; animation-delay: 2s; }
        .shape:nth-child(3) { width: 7vw; height: 7vw; left: 20%; top: 20%; animation-delay: 4s; }
        .shape:nth-child(4) { width: 12vw; height: 12vw; right: 20%; bottom: 20%; animation-delay: 6s; }

        @keyframes float {
            0% { transform: translateY(0) rotate(0deg); opacity: 0.8; }
            50% { transform: translateY(-10vh) rotate(180deg); opacity: 0.4; }
            100% { transform: translateY(0) rotate(360deg); opacity: 0.8; }
        }

        .container {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
            padding: 4vw;
            width: 100%;
            max-width: 480px;
            position: relative;
            z-index: 2;
        }

        .logo {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #134e4a, #0f766e);
            border-radius: 20px;
            margin: 0 auto 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .logo::before {
            content: '\f2f6';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 40px;
            color: white;
        }

        .logo::after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent 40%, rgba(255, 255, 255, 0.2) 50%, transparent 60%);
            animation: shine 3s infinite;
        }

        @keyframes shine {
            0% { transform: translateX(-100%) rotate(45deg); }
            50% { transform: translateX(100%) rotate(45deg); }
            100% { transform: translateX(100%) rotate(45deg); }
        }

        .title {
            text-align: center;
            margin-bottom: 10px;
            color: #134e4a;
            font-size: clamp(24px, 5vw, 32px);
            font-weight: 700;
        }

        .subtitle {
            text-align: center;
            margin-bottom: 4vh;
            color: #115e59;
            font-size: clamp(14px, 3vw, 16px);
        }

        .toggle-container {
            display: flex;
            justify-content: center;
            margin-bottom: 4vh;
            background: #f1f5f5;
            padding: 4px;
            border-radius: 12px;
            position: relative;
            width: 100%;
            max-width: 300px;
            margin-left: auto;
            margin-right: auto;
        }

        .toggle-container::before {
            content: '';
            position: absolute;
            width: 50%;
            height: calc(100% - 8px);
            background: white;
            border-radius: 10px;
            top: 4px;
            left: 4px;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }

        .toggle-container.marketer::before {
            transform: translateX(calc(100% - 8px));
        }

        .toggle-btn {
            padding: 12px 20px;
            width: 50%;
            font-size: clamp(12px, 2.5vw, 15px);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
            text-align: center;
            color: #115e59;
            border: none;
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .toggle-btn i {
            font-size: clamp(12px, 2.5vw, 14px);
        }

        .toggle-btn.active {
            color: #134e4a;
        }

        .form-container {
            display: none;
            animation: fadeIn 0.5s ease forwards;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .form-container.active {
            display: block;
        }

        .form-group {
            margin-bottom: 3vh;
            position: relative;
        }

        .form-group i:not(.password-toggle) {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #115e59;
            transition: all 0.3s ease;
            font-size: clamp(14px, 3vw, 16px);
        }

        .password-toggle {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #115e59;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: clamp(14px, 3vw, 16px);
        }

        .password-toggle:hover {
            color: #134e4a;
        }

        .form-group input {
            width: 100%;
            padding: 16px 16px 16px 48px;
            font-size: clamp(14px, 3vw, 16px);
            border: 2px solid #e5e7eb;
            border-radius: 10px;
            background: #f8fafa;
            transition: all 0.3s ease;
        }

        .form-group input[type="password"] {
            padding-right: 48px;
        }

        .form-group input:focus {
            outline: none;
            border-color: #0f766e;
            background: white;
            box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.1);
        }

        .form-group input:focus + i {
            color: #0f766e;
        }

        .floating-label {
            position: absolute;
            pointer-events: none;
            left: 48px;
            top: 50%;
            transform: translateY(-50%);
            transition: all 0.3s ease;
            color: #115e59;
            font-size: clamp(14px, 3vw, 16px);
            background: #f8fafa;
            padding: 0 4px;
        }

        .form-group input:focus ~ .floating-label,
        .form-group input:not(:placeholder-shown) ~ .floating-label {
            top: 0;
            left: 16px;
            font-size: clamp(12px, 2.5vw, 14px);
            color: #134e4a;
            background: white;
        }

        button[type="submit"] {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, #134e4a, #0f766e);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: clamp(14px, 3vw, 16px);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 6px -1px rgba(15, 118, 110, 0.2);
        }

        button[type="submit"]:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 12px -1px rgba(15, 118, 110, 0.3);
            background: linear-gradient(135deg, #1a4645, #115e59);
        }

        .error-message {
            display: none;
            color: #dc2626;
            font-size: clamp(12px, 2.5vw, 14px);
            margin-top: 10px;
            padding: 10px;
            border-radius: 8px;
            background-color: #fef2f2;
            border: 1px solid #fee2e2;
            opacity: 0;
            transition: opacity 0.3s ease-in-out;
        }

        .error-message.show {
            display: block;
            opacity: 1;
        }

        .error-message i {
            margin-right: 5px;
        }

        @media (max-width: 480px) {
            .container {
                padding: 20px;
            }

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

            .logo::before {
                font-size: 30px;
            }

            .form-group input {
                padding: 12px 12px 12px 40px;
            }

            .form-group i:not(.password-toggle) {
                left: 12px;
            }

            .floating-label {
                left: 40px;
            }
        }