/* Mengatur ukuran elemen agar lebih mudah diatur */
* {
    box-sizing: border-box;
}

/* Warna utama yang dipakai di seluruh halaman */
:root {
    --bg: #f5f5f7;
    --surface: #fff;
    --ink: #202124;
    --muted: #85878d;
    --line: #e9e9ee;
    --purple: #7568d8;
    --purple-soft: #f0edff;
    --green: #27845d;
    --green-soft: #e9f6ef;
    --red: #b45b61;
    --shadow: 0 12px 35px rgba(32, 33, 36, .045);
}

/* Mengatur tampilan dasar halaman */
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* Menyamakan font tombol dan kolom input */
button,
input,
select {
    font: inherit;
}

/* Membuat tombol bisa diklik */
button {
    cursor: pointer;
}

/* Mengatur bagian header atas */
.topbar {
    height: 66px;
    padding: 0 max(20px, calc((100% - 1000px)/2));
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #ffffffdf;
    border-bottom: 1px solid var(--line);
}

/* Mengatur logo Wordly */
.brand {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--ink);
    text-decoration: none;
    font-size: 20px;
    font-weight: 750;
    letter-spacing: -1px;
}

/* Membuat kotak logo dan logo footer */
.brand-icon,
.footer-logo {
    display: grid;
    place-items: center;
    width: 31px;
    height: 31px;
    border-radius: 10px;
    color: white;
    background: var(--purple);
    font-weight: 800;
}

/* Mengatur tampilan nama pengguna */
.profile {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #555;
    font-size: 12px;
    font-weight: 600;
}

/* Membuat lingkaran inisial pengguna */
.profile-dot {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    color: #6256bd;
    background: var(--purple-soft);
}

/* Mengatur lebar utama halaman */
.app {
    width: min(100% - 36px, 960px);
    margin: auto;
}

/* Mengatur jarak bagian pembuka */
.welcome {
    padding: 40px 0 24px;
}

/* Mengatur teks kecil di atas judul */
.eyebrow {
    margin: 0 0 8px;
    color: var(--purple);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 1.8px;
}

/* Mengatur judul utama */
h1 {
    margin: 0;
    font-size: clamp(32px, 5vw, 47px);
    line-height: 1.08;
    letter-spacing: -2px;
}

/* Memberi warna pada bagian judul */
h1 span {
    color: var(--purple);
}

/* Mengatur teks penjelasan halaman */
.welcome-copy {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 13px;
}

/* Menyusun statistik dalam beberapa kolom */
.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1.5fr;
    gap: 12px;
    margin-bottom: 20px;
}

/* Membuat kartu statistik dan bagian konten */
.summary-card,
.learn-section,
.word-list-section,
.add-section {
    border: 1px solid var(--line);
    border-radius: 16px;
    background: white;
    box-shadow: var(--shadow);
}

/* Mengatur isi kartu statistik */
.summary-card {
    min-height: 100px;
    padding: 14px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

/* Mengatur ikon statistik */
.summary-icon {
    display: grid;
    place-items: center;
    width: 27px;
    height: 27px;
    margin-bottom: 6px;
    border-radius: 9px;
    font-weight: 800;
}

/* Warna ikon ungu */
.lavender {
    color: var(--purple);
    background: var(--purple-soft);
}

/* Warna ikon hijau */
.mint {
    color: var(--green);
    background: var(--green-soft);
}

/* Mengatur teks keterangan statistik */
.summary-label {
    color: var(--muted);
    font-size: 10px;
}

/* Mengatur angka statistik */
.summary-card > strong {
    font-size: 24px;
}

/* Menempatkan isi progres di tengah */
.progress-card {
    justify-content: center;
}

/* Mengatur judul dan persentase progres */
.progress-top {
    display: flex;
    justify-content: space-between;
    width: 100%;
    align-items: center;
}

/* Mengatur angka persentase */
.progress-top strong {
    font-size: 21px;
}

/* Membuat garis dasar progres */
.progress-track {
    height: 7px;
    margin: 13px 0 8px;
    border-radius: 20px;
    background: #eeedf4;
    overflow: hidden;
}

/* Mengatur warna dan animasi progres */
.progress-fill {
    height: 100%;
    width: 0;
    background: var(--purple);
    border-radius: inherit;
    transition: width .3s;
}

/* Mengatur teks di bawah progres */
.progress-caption {
    font-size: 10px;
    color: var(--muted);
}

/* Mengatur jarak dalam bagian belajar dan daftar kata */
.learn-section,
.word-list-section {
    padding: 23px;
}

/* Mengatur judul bagian dan tombol di sebelahnya */
.section-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

/* Mengatur judul bagian */
h2 {
    margin: 0;
    font-size: 21px;
    letter-spacing: -.7px;
}

/* Mengatur pilihan kategori */
.category-select select {
    max-width: 145px;
    padding: 9px;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: white;
    color: #555;
    font-size: 10px;
}

/* Menyembunyikan label tanpa menghapus aksesibilitasnya */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
}

/* Mengatur kategori dan nomor kartu */
.study-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 24px 0 10px;
}

/* Membuat label kategori berbentuk kapsul */
.pill {
    padding: 6px 9px;
    border-radius: 20px;
    color: var(--purple);
    background: var(--purple-soft);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: .7px;
}

/* Mengatur nomor kartu dan jumlah kata */
.card-number,
.word-count {
    color: var(--muted);
    font-size: 11px;
}

/* Menyiapkan efek 3D saat kartu dibalik */
.card-stage {
    perspective: 1200px;
}

/* Mengatur ukuran dan animasi flashcard */
.flashcard {
    position: relative;
    display: block;
    width: 100%;
    height: 295px;
    padding: 0;
    border: 0;
    border-radius: 17px;
    background: transparent;
    text-align: center;
    transform-style: preserve-3d;
    transition: transform .58s cubic-bezier(.2, .7, .2, 1);
}

/* Membalik kartu dengan animasi */
.flashcard.is-flipped {
    transform: rotateY(180deg);
}

/* Mengatur tampilan depan dan belakang kartu */
.card-face {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    border: 1px solid #e9e6fa;
    border-radius: 17px;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    overflow: hidden;
}

/* Memberi warna pada depan kartu */
.front-face {
    background: radial-gradient(circle at 50% 0%, #f5f2ff, #faf9ff 55%, #f7f7fc);
}

/* Memberi warna pada belakang kartu */
.back-face {
    background: radial-gradient(circle at 50% 0%, #effaf3, #f8fcf9 65%, #f4faf6);
    border-color: #dfeee4;
    transform: rotateY(180deg);
}

/* Mengatur tulisan kecil pada kartu */
.face-label {
    color: #958bdc;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 2px;
}

/* Mengatur ukuran kata pada flashcard */
.word {
    margin: 17px 0 6px;
    color: #282638;
    font-size: clamp(34px, 6vw, 49px);
    line-height: 1.12;
    font-weight: 750;
    letter-spacing: -1.5px;
    overflow-wrap: anywhere;
}

/* Mengatur tulisan cara pengucapan */
.pronunciation {
    color: #9995ad;
    font-size: 13px;
}

/* Mengatur petunjuk membalik kartu */
.tap-hint {
    margin-top: 28px;
    color: #93909f;
    font-size: 10px;
}

/* Mengatur warna jawaban bahasa Indonesia */
.answer-word {
    color: #26734e;
    margin-top: 14px;
}

/* Mengatur contoh kalimat bahasa Inggris */
.example {
    margin-top: 17px;
    color: #414b44;
    font-size: 14px;
    font-style: italic;
}

/* Mengatur terjemahan contoh kalimat */
.example-translation {
    margin-top: 4px;
    color: #858f87;
    font-size: 11px;
}

/* Mengatur pertanyaan tentang hasil hafalan */
.memory-question {
    display: flex;
    align-items: center;
    gap: 11px;
    margin: 22px 0 13px;
    color: var(--muted);
    font-size: 10px;
    text-align: center;
}

/* Membuat garis di samping pertanyaan hafalan */
.memory-question span {
    height: 1px;
    flex: 1;
    background: var(--line);
}

/* Menyusun dua tombol status hafalan */
.memory-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Mengatur bentuk tombol hafalan */
.memory-button {
    min-height: 62px;
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 10px 14px;
    border: 1px solid transparent;
    border-radius: 13px;
    text-align: left;
    transition: transform .16s, box-shadow .16s;
}

/* Memberi efek saat tombol disentuh */
.memory-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 18px #00000008;
}

/* Warna tombol belum ingat */
.not-known {
    color: #a34c54;
    background: #fff8f8;
    border-color: #f2e2e3;
}

/* Warna tombol sudah ingat */
.known {
    color: #287450;
    background: #f3fbf6;
    border-color: #dcefe3;
}

/* Mengatur kotak ikon pada tombol hafalan */
.memory-symbol {
    display: grid;
    place-items: center;
    flex: 0 0 31px;
    height: 31px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
}

/* Warna ikon belum ingat */
.not-known .memory-symbol {
    background: #fbe9ea;
}

/* Warna ikon sudah ingat */
.known .memory-symbol {
    background: #e2f4e9;
}

/* Memisahkan judul dan keterangan tombol */
.memory-button strong,
.memory-button small {
    display: block;
}

/* Mengatur judul tombol hafalan */
.memory-button strong {
    font-size: 11px;
}

/* Mengatur keterangan tombol hafalan */
.memory-button small {
    margin-top: 3px;
    color: #98969a;
    font-size: 9px;
}

/* Mengatur posisi tombol navigasi kartu */
.navigation {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin-top: 15px;
}

/* Mengatur bentuk tombol navigasi */
.nav-button {
    padding: 10px 11px;
    border: 1px solid var(--line);
    border-radius: 9px;
    color: #65656d;
    background: white;
    font-size: 10px;
}

/* Memberi warna khusus pada tombol acak */
.shuffle-button {
    color: var(--purple);
    background: #faf9ff;
    border-color: #ece9ff;
}

/* Memberi jarak di atas daftar kosakata */
.word-list-section {
    margin-top: 17px;
}

/* Mengatur kolom pencarian */
.search-box {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 17px 0 12px;
    padding: 11px 13px;
    border: 1px solid var(--line);
    border-radius: 11px;
    color: #8a8b91;
    background: #fbfbfc;
}

/* Mengatur ikon pencarian */
.search-box > span {
    font-size: 20px;
}

/* Mengatur kolom teks pencarian */
.search-box input {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    font-size: 12px;
}

/* Menyusun daftar kosakata menjadi dua kolom */
.word-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
}

/* Mengatur bentuk setiap item kosakata */
.list-item {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    padding: 11px;
    border: 1px solid #eeeef2;
    border-radius: 10px;
    text-align: left;
    background: white;
}

/* Memberi tanda pada kata yang dipilih */
.list-item:hover,
.list-item.active {
    background: #f8f7ff;
    border-color: #e2defb;
}

/* Mengatur area teks pada daftar kata */
.list-word {
    flex: 1;
    min-width: 0;
}

/* Membatasi teks agar tidak keluar dari kartu daftar */
.list-word strong,
.list-word small {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Mengatur kata bahasa Inggris di daftar */
.list-word strong {
    font-size: 11px;
    font-weight: 650;
}

/* Mengatur arti kata di daftar */
.list-word small {
    margin-top: 3px;
    color: #96959c;
    font-size: 10px;
}

/* Membuat titik status hafalan */
.list-status {
    width: 7px;
    height: 7px;
    flex: 0 0 7px;
    border-radius: 50%;
    background: #d7b05b;
}

/* Mengubah titik menjadi hijau jika sudah hafal */
.list-status.known {
    background: #42a477;
}

/* Mengatur pesan saat kata tidak ditemukan */
.empty-list {
    grid-column: 1/-1;
    padding: 20px;
    text-align: center;
    color: var(--muted);
    font-size: 12px;
}

/* Mengatur keterangan di bawah daftar kata */
.list-footnote {
    margin: 12px 0 0;
    color: #9a9ba1;
    font-size: 10px;
}

/* Mengatur bagian tambah kosakata */
.add-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-top: 17px;
    padding: 17px;
}

/* Menyusun ikon dan tulisan tambah kosakata */
.add-section > div {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Membuat kotak ikon tambah */
.add-icon {
    display: grid;
    place-items: center;
    width: 35px;
    height: 35px;
    border-radius: 11px;
    color: var(--purple);
    background: var(--purple-soft);
    font-size: 21px;
}

/* Mengatur judul tambah kosakata */
.add-section strong {
    font-size: 12px;
}

/* Mengatur keterangan tambah kosakata */
.add-section p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 10px;
}

/* Mengatur tombol tambah kartu */
.add-button {
    padding: 11px 14px;
    border: 0;
    border-radius: 9px;
    color: white;
    background: var(--purple);
    font-size: 10px;
    font-weight: 700;
    white-space: nowrap;
}

/* Mengatur footer halaman */
footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 30px 0 35px;
    color: #a1a1a8;
    text-align: center;
}

/* Mengatur logo kecil di footer */
.footer-logo {
    width: 27px;
    height: 27px;
    border-radius: 9px;
    font-size: 16px;
}

/* Mengatur teks nama aplikasi di footer */
footer p {
    margin: 0;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 1.7px;
}

/* Mengatur tulisan kecil di footer */
footer small {
    font-size: 10px;
}

/* Mengatur tampilan jendela tambah kosakata */
.add-dialog {
    width: min(430px, calc(100% - 28px));
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 17px;
    box-shadow: 0 24px 90px #20212425;
}

/* Membuat latar belakang dialog lebih lembut */
.add-dialog::backdrop {
    background: #24242b55;
    backdrop-filter: blur(5px);
}

/* Mengatur judul dan tombol tutup dialog */
.dialog-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

/* Mengatur ukuran judul dialog */
.dialog-heading h2 {
    font-size: 22px;
}

/* Membuat tombol tutup dialog */
.close-dialog {
    width: 30px;
    height: 30px;
    border: 0;
    border-radius: 50%;
    background: #f0f0f4;
    font-size: 20px;
}

/* Mengatur label pada form */
.add-dialog label {
    display: block;
    margin: 13px 0 6px;
    color: #53535a;
    font-size: 11px;
    font-weight: 700;
}

/* Mengatur kolom input dan kategori */
.add-dialog input,
.add-dialog select {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid var(--line);
    border-radius: 9px;
    outline-color: var(--purple);
    background: white;
    font-size: 12px;
}

/* Mengatur tombol di bagian bawah form */
.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 20px;
}

/* Bentuk dasar tombol batal dan simpan */
.cancel-button,
.save-button {
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 9px;
    font-size: 11px;
    font-weight: 700;
}

/* Warna tombol batal */
.cancel-button {
    color: #555;
    background: white;
}

/* Warna tombol simpan */
.save-button {
    color: white;
    background: var(--purple);
    border-color: var(--purple);
}

/* Menyesuaikan tampilan untuk layar HP */
@media (max-width: 640px) {
    .topbar {
        height: 60px;
        padding: 0 17px;
    }

    .app {
        width: calc(100% - 26px);
    }

    .welcome {
        padding: 30px 2px 20px;
    }

    .welcome-copy {
        max-width: 290px;
        line-height: 1.6;
    }

    /* Statistik menjadi dua kolom */
    .summary-grid {
        grid-template-columns: 1fr 1fr;
        gap: 9px;
        margin-bottom: 15px;
    }

    .summary-card {
        min-height: 95px;
        padding: 12px;
        border-radius: 13px;
    }

    /* Progres memenuhi satu baris */
    .progress-card {
        grid-column: 1/-1;
        min-height: 82px;
    }

    .learn-section,
    .word-list-section {
        padding: 16px 13px;
        border-radius: 15px;
    }

    .section-top {
        align-items: flex-start;
    }

    h2 {
        font-size: 19px;
    }

    .category-select select {
        max-width: 125px;
        padding: 8px 5px;
        font-size: 9px;
    }

    .study-meta {
        margin-top: 20px;
    }

    /* Mengurangi tinggi flashcard di HP */
    .flashcard {
        height: 260px;
    }

    .card-face {
        padding: 18px 13px;
    }

    .word {
        font-size: clamp(33px, 10vw, 43px);
    }

    .memory-actions {
        gap: 8px;
    }

    .memory-button {
        min-height: 62px;
        gap: 8px;
        padding: 8px;
    }

    .memory-symbol {
        flex-basis: 28px;
        height: 28px;
    }

    .memory-button strong {
        font-size: 10px;
    }

    .memory-button small {
        font-size: 8px;
    }

    .navigation {
        gap: 5px;
    }

    .nav-button {
        flex: 1;
        padding: 10px 4px;
        font-size: 9px;
    }

    /* Daftar kata menjadi satu kolom di HP */
    .word-list {
        grid-template-columns: 1fr;
    }

    .list-item {
        padding: 10px;
    }

    .add-section {
        align-items: flex-start;
        flex-direction: column;
        padding: 15px;
    }

    .add-button {
        width: 100%;
        padding: 12px;
    }
}

/* Mengurangi animasi jika pengguna memilih gerakan minimal */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: .01ms !important;
    }
}


/* =========================================
   WORDLY UPDATE - LOGIN, MENU, REFERENSI
   Tambahkan di bagian paling bawah style.css
   ========================================= */

/* Elemen yang disembunyikan */
.hidden {
    display: none !important;
}

/* Emoji pada flashcard */
.card-emoji {
    display: block;
    margin-top: 18px;
    font-size: 48px;
    line-height: 1.2;
}

/* Tombol ikon pada header */
.icon-button {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--ink);
    background: var(--surface);
    font-size: 16px;
    transition: transform .2s, background .2s;
}

.icon-button:hover {
    transform: translateY(-2px);
}

/* Menu navigasi */
.main-menu {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
    background: var(--bg);
}

.menu-button {
    padding: 10px 16px;
    border: 1px solid transparent;
    border-radius: 11px;
    color: var(--muted);
    background: transparent;
    font-size: 12px;
    font-weight: 650;
    transition: background .2s, color .2s;
}

.menu-button:hover {
    color: var(--purple);
    background: var(--purple-soft);
}

.menu-button.active {
    color: var(--purple);
    border-color: #e6e1ff;
    background: var(--purple-soft);
}

/* Konten halaman menu */
.content-page {
    animation: wordly-appear .25s ease;
}

@keyframes wordly-appear {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

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

/* Halaman login dan daftar */
.auth-page {
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 24px 16px;
    background:
        radial-gradient(circle at top left, #eeeaff 0, transparent 40%),
        radial-gradient(circle at bottom right, #e8f7ee 0, transparent 38%),
        var(--bg);
}

.auth-card {
    width: min(100%, 420px);
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: 23px;
    background: var(--surface);
    box-shadow: 0 24px 70px rgba(32, 33, 36, .09);
}

.auth-card > .brand {
    margin-bottom: 30px;
}

.auth-card h1 {
    font-size: clamp(27px, 6vw, 35px);
    letter-spacing: -1.3px;
}

.auth-card > p:not(.eyebrow) {
    margin: 12px 0 22px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

/* Pilihan masuk dan daftar */
.auth-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5px;
    margin: 20px 0;
    padding: 5px;
    border-radius: 12px;
    background: var(--bg);
}

.auth-tabs button {
    padding: 11px;
    border: 0;
    border-radius: 9px;
    color: var(--muted);
    background: transparent;
    font-size: 12px;
    font-weight: 700;
}

.auth-tabs button.active {
    color: var(--purple);
    background: var(--surface);
    box-shadow: 0 2px 7px #0000000b;
}

/* Form login dan daftar */
#auth-form label {
    display: block;
    margin: 14px 0 7px;
    color: var(--ink);
    font-size: 12px;
    font-weight: 700;
}

#auth-form input {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid var(--line);
    border-radius: 11px;
    outline: none;
    color: var(--ink);
    background: var(--surface);
    font-size: 13px;
    transition: border-color .2s, box-shadow .2s;
}

#auth-form input:focus {
    border-color: var(--purple);
    box-shadow: 0 0 0 3px var(--purple-soft);
}

#auth-submit {
    width: 100%;
    margin-top: 14px;
    padding: 13px;
    font-size: 12px;
}

#auth-message,
#add-card-message {
    margin: 10px 0;
    color: var(--red);
    font-size: 12px;
    line-height: 1.6;
}

/* Tombol saat proses */
button:disabled {
    cursor: not-allowed;
    opacity: .6;
}

/* Kartu daftar kata dengan emoji */
.list-emoji {
    display: grid;
    place-items: center;
    flex: 0 0 37px;
    width: 37px;
    height: 37px;
    border-radius: 11px;
    background: var(--purple-soft);
    font-size: 21px;
}

/* Keterangan kategori kata */
.list-category {
    display: inline-block;
    margin-top: 5px;
    padding: 3px 6px;
    border-radius: 5px;
    color: var(--purple);
    background: var(--purple-soft);
    font-size: 9px;
}

/* Tombol untuk memasukkan referensi */
.reference-action {
    display: block;
    width: 100%;
    flex: 0 0 100%;
    margin-top: 8px;
    padding: 8px 10px;
    border: 1px solid #e3defe;
    border-radius: 8px;
    color: var(--purple);
    background: var(--purple-soft);
    font-size: 10px;
    font-weight: 700;
    text-align: center;
}

.reference-action:hover {
    filter: brightness(.97);
}

.reference-card,
.mine-word-item {
    flex-wrap: wrap;
}

.reference-card {
    cursor: pointer;
}

.reference-card:focus-visible {
    outline: 2px solid var(--purple);
    outline-offset: 2px;
}

.word-delete-button {
    flex: 0 0 100%;
    margin-top: 8px;
    padding: 8px 10px;
    border: 1px solid #f2d7d8;
    border-radius: 8px;
    color: var(--red);
    background: transparent;
    font-size: 10px;
    font-weight: 700;
    text-align: center;
}

.word-delete-button:hover {
    background: #fff4f4;
}

/* Identitas pembuat kata */
.word-author {
    display: block;
    flex: 0 0 100%;
    margin-top: 5px;
    color: var(--muted);
    font-size: 10px;
}

.word-share-note {
    margin: 5px 0 0;
    color: var(--muted);
    font-size: 11px;
    line-height: 1.5;
}

/* Tombol menu di halaman profil */
#profile-theme-button,
#profile-logout-button {
    width: 100%;
    margin-top: 10px;
    padding: 12px;
    text-align: left;
    font-size: 12px;
}

/* Efek fokus untuk akses keyboard */
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--purple);
    outline-offset: 3px;
}

/* =========================================
   DARK MODE
   Aktif ketika body memiliki class dark-mode
   ========================================= */

body.dark-mode {
    --bg: #15151c;
    --surface: #20202a;
    --ink: #f1f0f7;
    --muted: #aaa8b8;
    --line: #343442;
    --purple: #a79aff;
    --purple-soft: #302b49;
    --green: #70d5a0;
    --green-soft: #243d32;
    --red: #ff9b9f;
    --shadow: 0 12px 35px rgba(0, 0, 0, .16);
    color: var(--ink);
    background: var(--bg);
}

body.dark-mode .topbar {
    background: #20202a;
    border-color: var(--line);
}

body.dark-mode .profile {
    color: var(--ink);
}

body.dark-mode .main-menu {
    background: var(--bg);
    border-color: var(--line);
}

body.dark-mode .menu-button.active {
    border-color: #484064;
}

body.dark-mode .summary-card,
body.dark-mode .learn-section,
body.dark-mode .word-list-section,
body.dark-mode .add-section,
body.dark-mode .list-item,
body.dark-mode .auth-card {
    background: var(--surface);
    border-color: var(--line);
}

body.dark-mode .category-select select,
body.dark-mode .nav-button,
body.dark-mode .cancel-button {
    color: var(--ink);
    background: var(--surface);
    border-color: var(--line);
}

body.dark-mode .search-box {
    background: #191922;
    border-color: var(--line);
}

body.dark-mode .search-box input {
    color: var(--ink);
}

body.dark-mode .list-item:hover,
body.dark-mode .list-item.active {
    background: #2c2940;
    border-color: #494166;
}

body.dark-mode .list-word strong,
body.dark-mode .add-section strong,
body.dark-mode h2 {
    color: var(--ink);
}

body.dark-mode .front-face {
    background: radial-gradient(circle at top, #302b49, #22212e 75%);
    border-color: #494166;
}

body.dark-mode .back-face {
    background: radial-gradient(circle at top, #243d32, #202b27 75%);
    border-color: #355343;
}

body.dark-mode .word {
    color: #f1efff;
}

body.dark-mode .answer-word {
    color: #8de0b0;
}

body.dark-mode .example {
    color: #e0e7e2;
}

body.dark-mode .example-translation {
    color: #a6b3aa;
}

body.dark-mode .not-known {
    color: #ffb4b8;
    background: #352528;
    border-color: #513438;
}

body.dark-mode .known {
    color: #8de0b0;
    background: #22382d;
    border-color: #355343;
}

body.dark-mode .auth-page {
    background:
        radial-gradient(circle at top left, #302b49 0, transparent 40%),
        radial-gradient(circle at bottom right, #243d32 0, transparent 38%),
        var(--bg);
}

body.dark-mode #auth-form input,
body.dark-mode .add-dialog input,
body.dark-mode .add-dialog select {
    color: var(--ink);
    background: var(--surface);
    border-color: var(--line);
}

body.dark-mode .add-dialog {
    color: var(--ink);
    background: var(--surface);
    border-color: var(--line);
}

body.dark-mode .add-dialog label {
    color: var(--ink);
}

body.dark-mode .close-dialog {
    color: var(--ink);
    background: #343442;
}

body.dark-mode .auth-tabs {
    background: var(--bg);
}

body.dark-mode .auth-tabs button.active {
    background: var(--surface);
}

body.dark-mode .list-emoji {
    background: var(--purple-soft);
}

body.dark-mode .word-delete-button {
    border-color: #513438;
}

body.dark-mode .word-delete-button:hover {
    background: #352528;
}

/* =========================================
   RESPONSIVE - HP DAN TABLET
   ========================================= */

@media (max-width: 640px) {
    .main-menu {
        justify-content: flex-start;
        gap: 5px;
        padding: 9px 12px;
        overflow-x: auto;
    }

    .menu-button {
        flex: 0 0 auto;
        padding: 10px 12px;
        font-size: 11px;
    }

    .profile {
        gap: 6px;
    }

    #header-username {
        max-width: 90px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .icon-button {
        width: 31px;
        height: 31px;
    }

    .auth-card {
        padding: 23px 19px;
        border-radius: 19px;
    }

    .card-emoji {
        margin-top: 13px;
        font-size: 41px;
    }

    .reference-action {
        padding: 10px;
    }
}