:root {
        /* Orange Pop Palette */
        --primary: #FF9F43;
        /* Bright Orange */
        --secondary: #FDC500;
        /* Pop Yellow */
        --accent: #5f27cd;
        /* Purple Accent */
        --bg-color: #FFF8F0;
        /* Warm Cream */
        --text-main: #4E342E;
        /* Dark Brown Text */
        --text-light: #FFFFFF;
        --border-color: #3E2723;
        /* Very Dark Brown Border */
        --shadow-hard: 5px 5px 0px var(--border-color);
        --shadow-hover: 8px 8px 0px var(--border-color);
        --radius-lg: 25px;
        --radius-md: 15px;
        --font-head: 'Fredoka', sans-serif;
        --font-body: 'Quicksand', sans-serif;
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        -webkit-tap-highlight-color: transparent;
    }

    body {
        font-family: var(--font-body);
        background-color: var(--bg-color);
        color: var(--text-main);
        line-height: 1.6;
        min-height: 100vh;
        overflow-x: hidden;
        /* Polka Dot Pattern */
        background-image: radial-gradient(var(--secondary) 15%, transparent 16%), radial-gradient(var(--secondary) 15%, transparent 16%);
        background-size: 20px 20px;
        background-position: 0 0, 10px 10px;
    }

    a {
        text-decoration: none;
        color: inherit;
        transition: 0.2s;
    }

    ul {
        list-style: none;
    }

    button {
        border: none;
        outline: none;
        cursor: pointer;
        font-family: inherit;
    }

    select {
        appearance: none;
        -webkit-appearance: none;
        outline: none;
    }

    /* --- LOADING SCREEN --- */
    .loader {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: var(--bg-color);
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 9999;
        transition: opacity 0.5s ease;
    }

    .loader.hidden {
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }

    .bouncy-loader {
        width: 60px;
        height: 60px;
        background: var(--primary);
        border-radius: 50%;
        border: 4px solid var(--border-color);
        animation: bounce 0.6s infinite alternate;
    }

    @keyframes bounce {
        from {
            transform: translateY(0) scale(1);
        }

        to {
            transform: translateY(-20px) scale(1.1);
        }
    }

    /* --- CONTAINER --- */
    .app-container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 2rem 0 6rem 0;
    }

    /* --- HEADER --- */
    .header {
        text-align: center;
        margin-bottom: 3rem;
        position: relative;
    }

    .header h1 {
        font-family: var(--font-head);
        font-size: 2.5rem;
        color: var(--border-color);
        text-shadow: 3px 3px 0px #fff;
        margin-bottom: 0.5rem;
        display: inline-block;
        background: #fff;
        padding: 10px 30px;
        border: 4px solid var(--border-color);
        border-radius: 50px;
        box-shadow: var(--shadow-hard);
        animation: wiggle 3s infinite ease-in-out;
    }

    @keyframes wiggle {

        0%,
        100% {
            transform: rotate(-2deg);
        }

        50% {
            transform: rotate(2deg);
        }
    }

    .subtitle {
        font-size: 1.1rem;
        color: #6D4C41;
        font-weight: 600;
        margin-top: 1rem;
    }

    /* --- BUTTONS --- */
    .btn {
        background-color: var(--primary);
        color: white;
        padding: 12px 25px;
        border-radius: 50px;
        border: 3px solid var(--border-color);
        box-shadow: var(--shadow-hard);
        font-family: var(--font-head);
        font-weight: 700;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: all 0.2s;
        position: relative;
        overflow: hidden;
    }

    .btn:hover {
        transform: translate(-3px, -3px);
        box-shadow: var(--shadow-hover);
        background-color: var(--secondary);
        color: var(--border-color);
    }

    .btn:active {
        transform: translate(2px, 2px);
        box-shadow: 1px 1px 0px var(--border-color);
    }

    .btn-secondary {
        background-color: #fff;
        color: var(--border-color);
    }

    /* Tombol Reset Kecil */
    .btn-reset {
        background-color: #f0f0f0;
        color: #666;
        font-size: 0.8rem;
        padding: 5px 12px;
        border: 2px solid #ccc;
        box-shadow: 2px 2px 0px #999;
        border-radius: 20px;
        margin-top: 10px;
    }

    .btn-reset:hover {
        background-color: var(--primary);
        color: white;
        border-color: var(--border-color);
        box-shadow: 3px 3px 0px var(--border-color);
    }

    .btn-back {
        margin-bottom: 1.5rem;
        background-color: #ff6b6b;
    }

    /* --- HOME: JURUSAN GRID --- */
    .home-view {
        display: block;
        animation: fadeIn 0.5s ease;
    }

    .schedule-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 2rem;
    }

    .jurusan-card {
        background: #fff;
        border: 4px solid var(--border-color);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-hard);
        transition: transform 0.2s;
        display: flex;
        flex-direction: column;
    }

    .jurusan-card:hover {
        transform: translateY(-5px);
        border-color: var(--primary);
    }

    .jurusan-header {
        padding: 2rem 1.5rem;
        text-align: center;
        border-bottom: 4px solid var(--border-color);
        position: relative;
        background: var(--primary);
        color: white;
    }

    .jurusan-header h2 {
        font-family: var(--font-head);
        font-size: 1.6rem;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 10px;
        text-shadow: 2px 2px 0px var(--border-color);
    }

    .jurusan-header i {
        font-size: 2.5rem;
        opacity: 0.9;
    }

    .jurusan-content {
        padding: 1.5rem;
        text-align: center;
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 1rem;
    }

    /* Styled Dropdown inside Card */
    .kelas-select-wrapper {
        width: 100%;
        position: relative;
    }

    .kelas-select {
        width: 100%;
        padding: 15px;
        border-radius: 15px;
        border: 3px solid var(--border-color);
        background: #FFF3E0;
        font-family: var(--font-head);
        font-weight: 600;
        font-size: 1rem;
        color: var(--text-main);
        cursor: pointer;
        text-align: center;
        box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.1);
        transition: 0.2s;
    }

    .kelas-select:hover {
        background: white;
    }

    .kelas-select:focus {
        background: white;
        border-color: var(--primary);
        box-shadow: 3px 3px 0px var(--border-color);
    }

    /* --- SCHEDULE VIEW (DETAIL) --- */
    .schedule-view {
        display: none;
        animation: fadeIn 0.5s ease;
    }

    .schedule-view.active {
        display: block;
    }

    .controls-area {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .kelas-switcher-select {
        padding: 10px 15px;
        border-radius: 12px;
        border: 3px solid var(--border-color);
        font-family: var(--font-head);
        font-size: 0.9rem;
        background: white;
        cursor: pointer;
        box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.1);
    }

    /* Day Cards styling */
    .day-card {
        background: #fff;
        border: 4px solid var(--border-color);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-hard);
        margin-bottom: 2rem;
        overflow: hidden;
    }

    .day-header {
        background: var(--primary);
        color: white;
        padding: 1rem 1.5rem;
        font-family: var(--font-head);
        font-size: 1.5rem;
        border-bottom: 4px solid var(--border-color);
        text-shadow: 2px 2px 0px rgba(0, 0, 0, 0.2);
        position: sticky;
        top: 0;
        z-index: 10;
    }

    /* List Items */
    .subject-list {
        padding: 0;
    }

    .subject-item {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        padding: 15px;
        border-bottom: 2px solid #eee;
        transition: 0.2s;
    }

    .subject-item:last-child {
        border-bottom: none;
    }

    .subject-item:hover {
        background-color: #FFF8E1;
    }

    .subject-time {
        font-family: monospace;
        font-weight: 700;
        background: #eee;
        padding: 5px 10px;
        border-radius: 8px;
        border: 2px solid var(--border-color);
        margin-right: 15px;
        font-size: 0.9rem;
        color: #555;
    }

    .subject-info {
        flex: 1;
        min-width: 200px;
    }

    .subject-name {
        display: block;
        font-weight: 700;
        font-size: 1.1rem;
        color: var(--text-main);
    }

    .subject-teacher {
        display: block;
        font-size: 0.9rem;
        color: #777;
        font-style: italic;
    }

    .subject-limit {
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--accent);
        background: #fff;
        padding: 2px 8px;
        border-radius: 6px;
        border: 2px solid var(--border-color);
        display: inline-flex;
        align-items: center;
        gap: 5px;
        margin-top: 5px;
    }

    .subject-item.break {
        background-color: #ffebee;
        color: #c62828;
        justify-content: center;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1px;
    }

    .subject-item.upacara {
        background-color: #E3F2FD;
        color: #1565C0;
    }

    /* --- MOBILE DAY NAV --- */
    .mobile-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: #fff;
        border-top: 4px solid var(--border-color);
        display: flex;
        overflow-x: auto;
        z-index: 100;
        padding: 10px;
        gap: 10px;
        box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.1);
    }

    .mobile-nav-btn {
        background: #f0f0f0;
        border: 2px solid var(--border-color);
        border-radius: 50px;
        padding: 10px 20px;
        white-space: nowrap;
        font-family: var(--font-head);
        font-weight: 600;
        color: var(--text-main);
        display: flex;
        align-items: center;
        gap: 5px;
        transition: 0.2s;
    }

    .mobile-nav-btn.active {
        background: var(--primary);
        color: white;
        transform: scale(1.05);
    }

    /* --- RIPPLE EFFECT --- */
    .ripple {
        position: absolute;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.6);
        transform: scale(0);
        animation: ripple-anim 0.6s linear;
        pointer-events: none;
    }

    @keyframes ripple-anim {
        to {
            transform: scale(4);
            opacity: 0;
        }
    }

    /* --- FOOTER --- */
    .footer-note {
        background: #fff;
        padding: 2rem;
        border: 3px solid var(--border-color);
        border-radius: var(--radius-lg);
        text-align: center;
        box-shadow: var(--shadow-hard);
        margin-top: 3rem;
    }

    /* Helper */
    .hidden {
        display: none !important;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* Info Jam */
    .info-jam {
        background: #E1F5FE;
        padding: 1.5rem;
        border-radius: var(--radius-md);
        border: 3px solid var(--border-color);
        margin-bottom: 2rem;
    }