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

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, sans-serif;
            background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 1.5rem;
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(0px);
            border-radius: 2rem;
            box-shadow: 0 25px 45px -12px rgba(0, 0, 0, 0.35), 0 1px 2px rgba(0,0,0,0.05);
            width: 100%;
            max-width: 480px;
            transition: all 0.2s ease;
            overflow: hidden;
        }

        .card-inner {
            padding: 2rem 1.8rem 2.2rem;
        }

        h2 {
            font-size: 1.85rem;
            font-weight: 700;
            background: linear-gradient(135deg, #0f2b3d, #1e4a6e);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 0.5rem;
            letter-spacing: -0.3px;
        }

        .subhead {
            color: #4b5563;
            font-size: 0.9rem;
            margin-bottom: 1.8rem;
            border-left: 3px solid #3b82f6;
            padding-left: 0.75rem;
            font-weight: 500;
        }

        .form-group {
            margin-bottom: 1.4rem;
        }

        label {
            display: block;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 0.4rem;
            color: #1f2937;
            letter-spacing: -0.2px;
        }

        input {
            width: 100%;
            padding: 0.9rem 1rem;
            border: 1.5px solid #e2e8f0;
            border-radius: 1.2rem;
            font-size: 1rem;
            transition: all 0.2s;
            background: #fefefe;
            font-family: inherit;
        }

        input:focus {
            outline: none;
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
            background: white;
        }

        button {
            width: 100%;
            padding: 0.9rem;
            background: #1e3a8a;
            color: white;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            border-radius: 1.5rem;
            cursor: pointer;
            transition: all 0.2s;
            font-family: inherit;
            margin-top: 0.5rem;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }

        button:active {
            transform: scale(0.97);
        }

        button.primary-btn {
            background: linear-gradient(95deg, #2563eb, #1e3a8a);
        }

        button.primary-btn:hover {
            background: linear-gradient(95deg, #1d4ed8, #1e3a8a);
            transform: translateY(-1px);
        }

        button.secondary-btn {
            background: #10b981;
            margin-top: 0.7rem;
        }

        button.secondary-btn:hover {
            background: #059669;
        }

        button:disabled {
            opacity: 0.65;
            transform: none;
            cursor: not-allowed;
        }

        .message {
            padding: 0.9rem 1rem;
            border-radius: 1.2rem;
            margin-bottom: 1.5rem;
            font-size: 0.85rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .message.success {
            background: #d1fae5;
            color: #065f46;
            border-left: 4px solid #10b981;
        }

        .message.error {
            background: #fee2e2;
            color: #991b1b;
            border-left: 4px solid #ef4444;
        }

        .otp-section {
            margin-top: 1.8rem;
            border-top: 1px solid #eef2ff;
            padding-top: 1.5rem;
            transition: 0.2s;
        }

        .flex-btns {
            display: flex;
            gap: 12px;
            margin-top: 0.5rem;
        }

        .flex-btns button {
            flex: 1;
            margin-top: 0;
        }

        .demo-note {
            background: #fef9e3;
            border-radius: 1rem;
            padding: 0.7rem 1rem;
            font-size: 0.75rem;
            color: #92400e;
            margin-top: 1.2rem;
            text-align: center;
            border: 1px solid #fde68a;
        }

        @media (max-width: 520px) {
            .card-inner {
                padding: 1.5rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }