:root {
            --primary: #6366f1;
            --primary-hover: #4f46e5;
            --primary-glow: rgba(99, 102, 241, 0.4);
            --bg-dark: #090d16;
            --card-bg: rgba(15, 23, 42, 0.75);
            --card-border: rgba(255, 255, 255, 0.1);
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --input-bg: rgba(30, 41, 59, 0.7);
            --input-border: rgba(255, 255, 255, 0.12);
            --danger: #ef4444;
            --danger-bg: rgba(239, 68, 68, 0.15);
            --danger-border: rgba(239, 68, 68, 0.3);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
        }

        body {
            background-color: var(--bg-dark);
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow-x: hidden;
            position: relative;
        }

        /* Animated Mesh Gradient Background */
        .bg-canvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            z-index: 0;
            background: 
                radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.25) 0%, transparent 45%),
                radial-gradient(circle at 85% 80%, rgba(168, 85, 247, 0.2) 0%, transparent 45%),
                radial-gradient(circle at 50% 50%, rgba(14, 165, 233, 0.15) 0%, transparent 50%);
            filter: blur(40px);
            animation: pulseBg 12s ease-in-out infinite alternate;
        }

        @keyframes pulseBg {
            0% { transform: scale(1); }
            100% { transform: scale(1.1); }
        }

        /* Floating Grid / Glow Orbs */
        .glow-orb {
            position: absolute;
            border-radius: 50%;
            pointer-events: none;
        }
        .orb-1 {
            top: 10%;
            left: 20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.3), transparent 70%);
        }
        .orb-2 {
            bottom: 15%;
            right: 20%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.25), transparent 70%);
        }

        .login-wrapper {
            position: relative;
            z-index: 10;
            width: 100%;
            max-width: 440px;
            padding: 20px;
        }

        /* Glassmorphic Card */
        .login-card {
            background: var(--card-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--card-border);
            border-radius: 24px;
            padding: 40px 32px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6), 0 0 30px var(--primary-glow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .login-header {
            text-align: center;
            margin-bottom: 32px;
        }

        .logo-box {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 68px;
            height: 68px;
            background: rgba(99, 102, 241, 0.15);
            border: 1px solid rgba(99, 102, 241, 0.3);
            border-radius: 20px;
            margin-bottom: 16px;
            box-shadow: 0 8px 16px var(--primary-glow);
        }

        .logo-box img {
            max-width: 42px;
            max-height: 42px;
            object-fit: contain;
        }

        .logo-icon {
            font-size: 30px;
            color: var(--primary);
        }

        .brand-title {
            font-size: 26px;
            font-weight: 700;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 6px;
        }

        .brand-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 400;
        }

        /* Alert Banner */
        .alert-banner {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--danger-bg);
            border: 1px solid var(--danger-border);
            color: #fca5a5;
            padding: 14px 16px;
            border-radius: 14px;
            font-size: 13.5px;
            line-height: 1.4;
            margin-bottom: 24px;
            animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

        .alert-icon {
            font-size: 18px;
            color: var(--danger);
            flex-shrink: 0;
        }

        .alert-close {
            margin-left: auto;
            background: none;
            border: none;
            color: #fca5a5;
            cursor: pointer;
            font-size: 16px;
            opacity: 0.7;
            transition: opacity 0.2s;
        }
        .alert-close:hover { opacity: 1; }

        /* Form Controls */
        .form-group {
            margin-bottom: 20px;
            position: relative;
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: #cbd5e1;
            margin-bottom: 8px;
        }

        .input-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .input-icon {
            position: absolute;
            left: 16px;
            color: var(--text-muted);
            font-size: 15px;
            transition: color 0.2s;
            pointer-events: none;
        }

        .form-input {
            width: 100%;
            height: 48px;
            background: var(--input-bg);
            border: 1px solid var(--input-border);
            border-radius: 12px;
            padding: 0 44px 0 46px;
            color: #ffffff;
            font-size: 14.5px;
            outline: none;
            transition: all 0.25s ease;
        }

        .form-input::placeholder {
            color: #64748b;
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px var(--primary-glow);
            background: rgba(30, 41, 59, 0.9);
        }

        .form-input:focus ~ .input-icon {
            color: var(--primary);
        }

        .toggle-password {
            position: absolute;
            right: 16px;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 15px;
            padding: 4px;
            transition: color 0.2s;
        }
        .toggle-password:hover {
            color: #ffffff;
        }

        /* Options Row */
        .form-options {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 26px;
            font-size: 13.5px;
        }

        .checkbox-container {
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            user-select: none;
            color: var(--text-muted);
        }

        .custom-checkbox {
            width: 18px;
            height: 18px;
            border: 1px solid var(--input-border);
            border-radius: 5px;
            background: var(--input-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
        }

        .checkbox-container input {
            display: none;
        }

        .checkbox-container input:checked + .custom-checkbox {
            background: var(--primary);
            border-color: var(--primary);
        }

        .custom-checkbox i {
            color: white;
            font-size: 11px;
            display: none;
        }

        .checkbox-container input:checked + .custom-checkbox i {
            display: block;
        }

        .forgot-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s;
        }
        .forgot-link:hover {
            color: #818cf8;
            text-decoration: underline;
        }

        /* Submit Button */
        .btn-submit {
            width: 100%;
            height: 50px;
            background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
            border: none;
            border-radius: 12px;
            color: white;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 10px 20px -5px var(--primary-glow);
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 25px -5px rgba(99, 102, 241, 0.6);
            background: linear-gradient(135deg, #6366f1 0%, #4338ca 100%);
        }

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

        .spinner {
            display: none;
            width: 18px;
            height: 18px;
            border: 2px solid rgba(255,255,255,0.3);
            border-top-color: white;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

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

        /* Responsive */
        @media (max-width: 480px) {
            .login-card {
                padding: 30px 20px;
                border-radius: 20px;
            }
        }