/* Container */
        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Form */
        .form-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 32px;
            padding: 32px;
            transition: all 0.3s;
        }

        .form-group {
            margin-bottom: 24px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #cbd5e6;
            font-size: 0.9rem;
            letter-spacing: 0.3px;
        }

        input {
            width: 100%;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 40px;
            color: white;
            font-size: 1rem;
            transition: all 0.2s;
        }

        input:focus {
            outline: none;
            border-color: #3b82f6;
            background: rgba(255, 255, 255, 0.12);
        }

        input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        button {
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            border: none;
            width: 100%;
            padding: 14px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            color: white;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 8px 20px -6px #0f2b5e;
            border: 1px solid rgba(255, 255, 255, 0.15);
            margin-top: 12px;
        }

        button:hover:not(:disabled) {
            background: linear-gradient(135deg, #1d4ed8, #1e3a8a);
            box-shadow: 0 12px 28px -8px #0f2b5e;
        }

        button:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none;
        }

        .result-message {
            margin-top: 24px;
            padding: 12px 20px;
            border-radius: 40px;
            text-align: center;
            font-size: 0.9rem;
            transition: all 0.2s;
            display: none;
        }

        .result-message.success {
            background: rgba(16, 185, 129, 0.15);
            border: 1px solid rgba(16, 185, 129, 0.4);
            color: #10b981;
            display: block;
        }

        .result-message.error {
            background: rgba(239, 68, 68, 0.15);
            border: 1px solid rgba(239, 68, 68, 0.4);
            color: #f87171;
            display: block;
        }

        .info-text {
            text-align: center;
            margin-top: 24px;
            font-size: 0.85rem;
            color: #8ba0b8;
        }

        .info-text a {
            color: #60a5fa;
            text-decoration: none;
            border-bottom: 1px dashed #60a5fa;
        }

        /* Responsive */
        @media (max-width: 768px) {
            body {
                padding: 16px;
            }
            .form-card {
                padding: 24px;
            }
        }