:root {
            --accent-teal: #0d9488;
            --accent-teal-light: #ccfbf1;
            --accent-emerald: #059669;
            --accent-emerald-light: #d1fae5;
            --dark-bg: #0f172a;
            --dark-card: #1e293b;
            --dark-input: #0f172a;
            --dark-border: #334155;
            --dark-muted: #64748b;
            --dark-text: #94a3b8;
            --dark-heading: #e2e8f0;
            --dark-body: #f1f5f9;
            --radius: 14px;
            --radius-sm: 10px;
        }
        * { font-family: 'Plus Jakarta Sans', sans-serif; margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }

        body {
            background: linear-gradient(160deg, #0f172a 0%, #132e2b 50%, #0f172a 100%);
            color: var(--dark-body);
            position: relative;
            overflow-x: hidden;
            min-height: 100vh;
        }

        body::before {
            content: '';
            position: fixed;
            width: 600px; height: 600px;
            background: radial-gradient(circle, rgba(13,148,136,0.1), transparent 70%);
            top: -200px; right: -150px;
            border-radius: 50%;
            animation: floatBlob 8s ease-in-out infinite;
            z-index: 0;
        }
        body::after {
            content: '';
            position: fixed;
            width: 500px; height: 500px;
            background: radial-gradient(circle, rgba(5,150,105,0.07), transparent 70%);
            bottom: -150px; left: -120px;
            border-radius: 50%;
            animation: floatBlob 10s ease-in-out infinite reverse;
            z-index: 0;
        }
        @keyframes floatBlob {
            0%, 100% { transform: translate(0, 0) scale(1); }
            50% { transform: translate(30px, -20px) scale(1.05); }
        }

        /* ---- PAGES ---- */
        .page {
            min-height: 100vh;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding: 60px 20px 40px;
            position: relative;
            z-index: 2;
            transition: opacity 0.4s ease;
        }
        .page.hidden { display: none; }

        /* ---- MENU UTAMA ---- */
        .menu-container {
            max-width: 860px;
            width: 100%;
            text-align: center;
            animation: fadeIn 0.5s ease;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .school-logo {
            width: 130px; height: 130px;
            border-radius: 50%;
            object-fit: cover;
            border: 4px solid rgba(13,148,136,0.5);
            box-shadow: 0 0 40px rgba(13,148,136,0.15);
            animation: logoPulse 3s ease-in-out infinite;
            margin-bottom: 20px;
        }
        @keyframes logoPulse {
            0%, 100% { box-shadow: 0 0 40px rgba(13,148,136,0.15); }
            50% { box-shadow: 0 0 60px rgba(13,148,136,0.3); }
        }

        .school-name {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 4px;
            background: linear-gradient(135deg, #5eead4, #0d9488, #059669);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
        }
        .school-tagline {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-teal);
            letter-spacing: 0.15em;
            text-transform: uppercase;
            background: rgba(13,148,136,0.1);
            border: 1px solid rgba(13,148,136,0.25);
            padding: 4px 18px;
            border-radius: 20px;
            margin-bottom: 36px;
        }

        /* ---- VISI MISI ---- */
        .vm-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 36px;
        }
        .vm-card {
            background: rgba(30,41,59,0.7);
            border: 1px solid rgba(71,85,105,0.4);
            border-radius: var(--radius);
            padding: 24px 22px;
            text-align: left;
            backdrop-filter: blur(12px);
            transition: all 0.3s ease;
        }
        .vm-card:hover {
            transform: translateY(-3px);
            border-color: rgba(13,148,136,0.4);
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }
        .vm-icon {
            width: 40px; height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 1rem;
        }
        .vm-card.visi .vm-icon { background: rgba(13,148,136,0.12); color: #5eead4; }
        .vm-card.misi .vm-icon { background: rgba(5,150,105,0.12); color: #34d399; }
        .vm-card h5 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 10px;
            color: var(--dark-heading);
        }
        .vm-card p {
            font-size: 0.85rem;
            color: var(--dark-text);
            line-height: 1.7;
            font-weight: 300;
        }
        .vm-card.misi ul { list-style: none; padding: 0; margin: 0; }
        .vm-card.misi ul li {
            font-size: 0.85rem;
            color: var(--dark-text);
            line-height: 1.8;
            font-weight: 300;
            padding-left: 20px;
            position: relative;
        }
        .vm-card.misi ul li::before {
            content: '';
            position: absolute;
            left: 0; top: 10px;
            width: 7px; height: 7px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-teal), var(--accent-emerald));
        }

        /* ---- BTN MASUK ---- */
        .btn-masuk {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-teal), var(--accent-emerald));
            border: none;
            border-radius: 12px;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 14px 38px;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 20px rgba(13,148,136,0.3);
            margin-bottom: 40px;
            font-family: inherit;
        }
        .btn-masuk:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(13,148,136,0.45);
        }
        .btn-masuk:active { transform: translateY(0); }
        .btn-masuk i {
            font-size: 0.9rem;
            transition: transform 0.3s;
        }
        .btn-masuk:hover i { transform: translateX(3px); }

        /* ---- LOGIN LAYOUT ---- */
        .login-layout {
            display: flex;
            align-items: flex-start;
            justify-content: center;
            width: 100%;
            max-width: 440px;
            margin-top: 80px;
            animation: fadeIn 0.5s ease;
        }
        .card {
            border: none;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 25px 60px rgba(0,0,0,0.4);
            width: 100%;
        }
        .card-header {
            background: linear-gradient(135deg, #0f766e, var(--accent-teal), var(--accent-emerald));
            border: none;
            padding: 28px 25px;
            text-align: center;
        }
        .card-header .logo-icon {
            width: 52px; height: 52px;
            background: rgba(255,255,255,0.15);
            border-radius: 13px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.2);
            font-size: 1.3rem;
            color: #fff;
        }
        .card-header h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 3px;
            letter-spacing: -0.01em;
        }
        .card-header small {
            color: rgba(255,255,255,0.7);
            font-size: 0.78rem;
            font-weight: 400;
        }
        .card-body {
            background: var(--dark-card);
            padding: 30px 28px;
        }

        /* ---- FORM ---- */
        .form-group { margin-bottom: 20px; }
        .form-group label {
            color: var(--dark-text);
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 6px;
            display: block;
        }
        .input-wrapper { position: relative; }
        .input-wrapper i {
            position: absolute;
            left: 14px; top: 50%;
            transform: translateY(-50%);
            font-size: 0.9rem;
            color: var(--dark-muted);
            transition: color 0.2s;
        }
        .input-wrapper input {
            background: var(--dark-input);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius-sm);
            color: var(--dark-body);
            padding: 12px 14px 12px 44px;
            font-size: 0.95rem;
            width: 100%;
            transition: all 0.25s;
            font-family: inherit;
        }
        .input-wrapper input::placeholder { color: #475569; }
        .input-wrapper input:focus {
            outline: none;
            border-color: var(--accent-teal);
            box-shadow: 0 0 0 3px rgba(13,148,136,0.15);
        }
        .input-wrapper input:focus + i,
        .input-wrapper input:focus ~ i { color: var(--accent-teal); }

        /* ---- BTN LOGIN ---- */
        .btn-login {
            background: linear-gradient(135deg, var(--accent-teal), var(--accent-emerald));
            border: none;
            border-radius: var(--radius-sm);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px;
            width: 100%;
            cursor: pointer;
            transition: all 0.25s;
            font-family: inherit;
            letter-spacing: 0.02em;
        }
        .btn-login:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 25px rgba(13,148,136,0.4);
        }
        .btn-login:active { transform: translateY(0); }

        /* ---- BTN BACK ---- */
        .btn-back-home {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(71,85,105,0.5);
            border-radius: var(--radius-sm);
            color: var(--dark-text);
            font-weight: 500;
            font-size: 0.85rem;
            padding: 12px;
            width: 100%;
            cursor: pointer;
            transition: all 0.25s;
            margin-top: 12px;
            font-family: inherit;
        }
        .btn-back-home:hover {
            background: rgba(30,41,59,0.8);
            border-color: rgba(13,148,136,0.3);
            color: #cbd5e1;
            transform: translateY(-1px);
        }
        .btn-back-home:active { transform: translateY(0); }
        .btn-back-home i {
            font-size: 0.8rem;
            transition: transform 0.25s;
        }
        .btn-back-home:hover i { transform: translateX(-3px); }

        /* ---- ALERT ERROR ---- */
        .alert-error {
            background: rgba(239,68,68,0.1);
            border: 1px solid rgba(239,68,68,0.3);
            border-radius: var(--radius-sm);
            color: #fca5a5;
            font-size: 0.85rem;
            padding: 12px 16px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .alert-error i {
            font-size: 0.95rem;
            color: #f87171;
            flex-shrink: 0;
        }
        .footer-text {
            text-align: center;
            margin-top: 22px;
            margin-bottom: 40px;
            color: #475569;
            font-size: 0.78rem;
        }

        /* ---- RESPONSIVE ---- */
        @media (max-width: 700px) {
            .vm-grid { grid-template-columns: 1fr; gap: 16px; }
            .school-name { font-size: 1.5rem; }
            .school-logo { width: 100px; height: 100px; }
            .menu-container { max-width: 95%; }
            .login-layout { max-width: 95%; margin-top: 40px; }
            .card-body { padding: 24px 20px; }
        }