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

        :root {
            --sky-50: #f0f9ff;
            --sky-100: #e0f2fe;
            --sky-200: #bae6fd;
            --sky-400: #38bdf8;
            --sky-500: #0ea5e9;
            --sky-600: #0284c7;
            --sky-700: #0369a1;
            --sky-800: #075985;
            --sky-900: #0c4a6e;
            --white: #ffffff;
            --gray-50: #f8fafc;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-300: #cbd5e1;
            --gray-400: #94a3b8;
            --gray-500: #64748b;
            --gray-700: #334155;
            --gray-900: #0f172a;
            --radius-sm: 10px;
            --radius-md: 16px;
        }

        html,
        body {
            height: 100%;
            font-family: 'DM Sans', sans-serif;
            background: var(--sky-50);
            overflow: hidden;
        }

        .page {
            display: flex;
            height: 100vh;
            width: 100vw;
        }

        /* ── LEFT HERO ── */
        .hero {
            flex: 0 0 50%;
            position: relative;
            background: linear-gradient(145deg, #0ea5e9 0%, #0369a1 60%, #0c4a6e 100%);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 40px 48px;
            overflow: hidden;
            min-width: 0;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: repeating-linear-gradient(-45deg,
                    rgba(255, 255, 255, .04) 0px,
                    rgba(255, 255, 255, .04) 1px,
                    transparent 1px,
                    transparent 32px);
            pointer-events: none;
        }

        .blob {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: .25;
            pointer-events: none;
        }

        .blob-1 {
            width: 420px;
            height: 420px;
            background: #38bdf8;
            top: -120px;
            left: -80px;
        }

        .blob-2 {
            width: 300px;
            height: 300px;
            background: #0284c7;
            bottom: 40px;
            right: -60px;
        }

        .blob-3 {
            width: 200px;
            height: 200px;
            background: #7dd3fc;
            bottom: 160px;
            left: 40px;
        }

        /* brand */
        .hero-brand {
            display: flex;
            align-items: center;
            gap: 14px;
            z-index: 1;
        }

        .hero-brand-icon {
            width: 48px;
            height: 48px;
            background: rgba(255, 255, 255, .18);
            border: 1px solid rgba(255, 255, 255, .28);
            border-radius: 12px;
            display: grid;
            place-items: center;
        }

        .hero-brand-icon svg {
            width: 24px;
            height: 24px;
        }

        .hero-brand-text {
            color: var(--white);
        }

        .hero-brand-text .title {
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-weight: 700;
            font-size: 16px;
            line-height: 1.2;
        }

        .hero-brand-text .sub {
            font-size: 12px;
            opacity: .7;
            margin-top: 2px;
        }

        /* hero body */
        .hero-body {
            z-index: 1;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 40px 0 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .22);
            border-radius: 999px;
            color: var(--white);
            font-size: 12.5px;
            font-weight: 500;
            padding: 5px 14px;
            width: fit-content;
            margin-bottom: 24px;
        }

        .hero-badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #4ade80;
            box-shadow: 0 0 6px #4ade80;
        }

        .hero-headline {
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-weight: 800;
            font-size: clamp(28px, 3.2vw, 44px);
            line-height: 1.15;
            color: var(--white);
            margin-bottom: 20px;
        }

        .hero-headline span {
            color: #7dd3fc;
        }

        .hero-desc {
            color: rgba(255, 255, 255, .75);
            font-size: 15px;
            line-height: 1.65;
            max-width: 380px;
            margin-bottom: 40px;
        }

        .hero-features {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .hero-feat {
            display: flex;
            align-items: center;
            gap: 14px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
        }

        .hero-feat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: grid;
            place-items: center;
            flex-shrink: 0;
        }

        .hero-feat-icon svg {
            width: 20px;
            height: 20px;
        }

        .feat-blue {
            background: rgba(56, 189, 248, .2);
        }

        .feat-teal {
            background: rgba(20, 184, 166, .2);
        }

        .feat-amber {
            background: rgba(251, 191, 36, .2);
        }

        .hero-feat-text .ft {
            font-weight: 600;
            color: var(--white);
            font-size: 13.5px;
            font-family: 'Plus Jakarta Sans', sans-serif;
        }

        .hero-feat-text .fs {
            font-size: 12px;
            color: rgba(255, 255, 255, .6);
            margin-top: 1px;
        }

        /* stats */
        .hero-stats {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            z-index: 1;
        }

        .hero-stat {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 999px;
            color: var(--white);
            font-size: 12px;
            font-weight: 500;
            padding: 6px 16px;
        }

        /* ── RIGHT LOGIN PANEL ── */
        .login-panel {
            flex: 0 0 50%;
            background: var(--white);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }

        /* navbar */
        .login-navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 40px;
            border-bottom: 1px solid var(--gray-100);
            flex-shrink: 0;
        }

        .login-navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .login-navbar-brand-icon {
            width: 36px;
            height: 36px;
            background: var(--sky-500);
            border-radius: 9px;
            display: grid;
            place-items: center;
        }

        .login-navbar-brand-icon svg {
            width: 18px;
            height: 18px;
        }

        .login-navbar-brand-text .nb-title {
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-weight: 700;
            font-size: 14px;
            color: var(--gray-900);
            line-height: 1.2;
        }

        .login-navbar-brand-text .nb-sub {
            font-size: 11px;
            color: var(--gray-400);
        }

        .btn-back {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--gray-50);
            border: 1.5px solid var(--gray-200);
            border-radius: 999px;
            color: var(--gray-500);
            font-size: 13px;
            font-family: 'DM Sans', sans-serif;
            font-weight: 500;
            padding: 7px 16px;
            cursor: pointer;
            text-decoration: none;
            transition: background .2s, border-color .2s, color .2s;
        }

        .btn-back:hover {
            background: var(--gray-100);
            border-color: var(--gray-300);
            color: var(--gray-700);
        }

        .btn-back svg {
            width: 14px;
            height: 14px;
        }

        /* form area */
        .login-form-area {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 32px 40px;
            overflow-y: auto;
        }

        .login-form-inner {
            width: 100%;
            max-width: 400px;
        }

        /* admin badge */
        .admin-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--sky-50);
            border: 1px solid var(--sky-200);
            border-radius: 999px;
            color: var(--sky-700);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            margin-bottom: 20px;
        }

        .admin-badge svg {
            width: 13px;
            height: 13px;
        }

        .login-greeting {
            font-size: 14px;
            color: var(--gray-500);
            margin-bottom: 4px;
        }

        .login-title {
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-weight: 800;
            font-size: 28px;
            color: var(--gray-900);
            margin-bottom: 4px;
        }

        .login-sub {
            font-size: 14px;
            color: var(--gray-400);
            margin-bottom: 28px;
        }

        /* form fields */
        .form-group {
            margin-bottom: 16px;
        }

        label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--gray-700);
            margin-bottom: 7px;
        }

        .input-wrap {
            position: relative;
        }

        .input-wrap .icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--gray-400);
            pointer-events: none;
            display: flex;
            align-items: center;
        }

        .input-wrap .icon svg {
            width: 16px;
            height: 16px;
        }

        input[type="text"],
        input[type="password"] {
            width: 100%;
            padding: 12px 14px 12px 42px;
            border: 1.5px solid var(--gray-200);
            border-radius: var(--radius-sm);
            font-family: 'DM Sans', sans-serif;
            font-size: 14.5px;
            color: var(--gray-900);
            background: var(--gray-50);
            outline: none;
            transition: border-color .2s, background .2s, box-shadow .2s;
        }

        input:focus {
            border-color: var(--sky-400);
            background: var(--white);
            box-shadow: 0 0 0 3px rgba(56, 189, 248, .15);
        }

        .toggle-pw {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            cursor: pointer;
            color: var(--gray-400);
            display: flex;
            align-items: center;
            transition: color .2s;
        }

        .toggle-pw:hover {
            color: var(--sky-500);
        }

        .toggle-pw svg {
            width: 16px;
            height: 16px;
        }

        .form-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .remember-label {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--gray-500);
            cursor: pointer;
            user-select: none;
        }

        .remember-label input[type="checkbox"] {
            accent-color: var(--sky-500);
            width: 15px;
            height: 15px;
        }

        .forgot-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--sky-600);
            text-decoration: none;
            transition: color .2s;
        }

        .forgot-link:hover {
            color: var(--sky-800);
        }

        .btn-login {
            width: 100%;
            padding: 14px;
            background: linear-gradient(135deg, var(--sky-500), var(--sky-700));
            color: var(--white);
            border: none;
            border-radius: var(--radius-sm);
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: opacity .2s, transform .15s, box-shadow .2s;
            box-shadow: 0 4px 16px rgba(14, 165, 233, .35);
        }

        .btn-login svg {
            width: 16px;
            height: 16px;
        }

        .btn-login:hover {
            opacity: .92;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(14, 165, 233, .45);
        }

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

        .alert-error {
            background: #fef2f2;
            border: 1px solid #fecaca;
            border-radius: var(--radius-sm);
            color: #dc2626;
            font-size: 13.5px;
            padding: 12px 16px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .alert-error svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }

        .login-footer {
            padding: 14px 40px;
            font-size: 12px;
            color: var(--gray-400);
            text-align: center;
            border-top: 1px solid var(--gray-100);
            flex-shrink: 0;
        }

        @media (max-width: 900px) {
            .hero {
                display: none;
            }

            .login-panel {
                flex: 1 1 100%;
            }

            .login-form-area {
                padding: 32px 28px;
            }
        }