/* ============================================================
LOGIN CORE — basis bersama halaman login
Dipakai oleh login.html (pemohon) DAN login-petugas.html.
Berisi: hero, latar decouple, layout, kartu (shell), input,
tombol Masuk, alert, dan seluruh perilaku responsif.
Bagian khas tiap halaman ada di login-petugas.css / login-user.css.
============================================================ */

/* ============================================================
LOGIN INTERNAL BPN
Satu sistem responsif untuk login petugas dan administrator.
============================================================ */

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

:root {
    --login-navy: #0b3a68;
    --login-navy-dark: #082a4d;
    --login-gold: #f5a623;
    --login-white: #fff;
    --login-field: #f0f4f8;
    --login-line: #dce5ee;
    --login-muted: #8fa4b5;
    --login-danger: #922b21;
    --login-danger-bg: #fadbd8;
    --login-danger-line: #f5b7b1;
    --login-card-radius: 20px;
    --login-control-radius: 10px;
    --login-shadow: 0 18px 46px rgba(7, 39, 76, 0.14);
    --login-font-heading: "Public Sans", system-ui, sans-serif;
    --login-font-body: "Inter", system-ui, sans-serif;
    /* Jarak tepi: hero menempel tepi layar, kartu punya gutter sendiri. */
    --hero-gutter: clamp(24px, 7vw, 44px);
    --card-gutter: clamp(16px, 5.5vw, 26px);
    --card-max: 390px;
    /* Padding samping isi kartu; juga dipakai margin alert login utama
       (yang berada di luar .form-fields) agar lebarnya = input & tombol. */
    --form-pad: 24px;
}

html {
    min-width: 320px;
    min-height: 100%;
    background: #eaf1fa;
}

body.mobile-body {
    min-width: 320px;
    min-height: 100vh;
    min-height: 100svh;
    overflow-x: hidden;
    background: #eaf1fa;
    color: var(--login-navy);
    font-family: var(--login-font-body);
}

button,
input {
    font: inherit;
}

button {
    -webkit-tap-highlight-color: transparent;
}

.mobile-viewport-container {
    width: 100%;
    min-height: 100vh;
    min-height: 100svh;
    margin-inline: auto;
    /*
    * KONSEP: latar dikuasai LAYOUT, bukan satu gambar dengan batas dibakar.
    * Kontainer = permukaan terang solid (ringan, 0 aset). Hero biru punya
    * latarnya sendiri (lihat .header-area). Batas biru/putih = tepi bawah
    * hero -> selalu pas di semua rasio, kartu tak pernah mepet ke gambar.
    */
    background-color: #eef5ff;
    background-image: linear-gradient(180deg, #eef5ff 0%, #e7eff8 55%, #dfe9f5 100%);
}

.mobile-viewport {
    width: 100%;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    /* Section mengatur gutter masing-masing -> hero biru full-bleed. */
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: max(26px, env(safe-area-inset-bottom));
}

/* ============================================================
HERO
============================================================ */

.header-area {
    flex: none;
    /*
    * Hero biru = blok mandiri dengan latarnya sendiri (webp kecil, di-cover).
    * Tingginya = aspek pita biru pada aset, jadi `cover` membingkai persis
    * area biru (ilustrasi utuh, tanpa bagian putih ikut terlihat). Bg 412x915
    * -> pita biru 412x281 -> 281/412. Karena area putih kini dikuasai
    * kontainer (bukan gambar), kartu di bawahnya tak pernah mepet/terpotong.
    */
    min-height: calc(281 / 412 * 100vw);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(20px, 5vw, 32px) var(--hero-gutter);
    background-image: url("/img/login-bg-412x915.webp");
    background-repeat: no-repeat;
    background-position: center top;
    background-size: cover;
}

.logo-text-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    min-width: 0;
}

.target-logo {
    width: clamp(58px, 15.5vw, 76px);
    height: auto;
    margin-bottom: clamp(10px, 2.6vw, 15px);
    object-fit: contain;
}

.target-title {
    max-width: 100%;
    color: var(--login-white);
    font-family: var(--login-font-heading);
    font-size: clamp(21px, 6.3vw, 31px);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: 0;
}

.text-yellow {
    color: var(--login-gold);
}

.title-line {
    width: clamp(58px, 16vw, 72px);
    height: 3px;
    margin-top: clamp(9px, 2.4vw, 12px);
    border-radius: 999px;
    background: var(--login-gold);
}

.target-subtitle {
    max-width: 42ch;
    margin-top: clamp(8px, 2.3vw, 13px);
    color: #d7e4f0;
    font-size: clamp(12px, 3.4vw, 16px);
    font-weight: 400;
    line-height: 1.4;
    letter-spacing: 0;
}

/*
* Pembungkus kolom kanan: kartu "Akses Terbatas" menumpuk di atas kartu login.
* Selalu tampil di semua rasio layar dengan lebar yang mengikuti kartu login.
* Mengisi sisa ruang putih di bawah pita biru dan memusatkan kartu agar
* jaraknya seimbang (tidak menempel di bawah biru).
*/

.login-column {
    flex: 1 1 auto;
    width: min(100% - 2 * var(--card-gutter), var(--card-max));
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    padding-block: clamp(18px, 5vw, 32px);
}

/* ============================================================
LOGIN CARD
============================================================ */

.target-card {
    position: relative;
    z-index: 1;
    flex: none;
    width: 100%;
    padding-bottom: 24px;
    overflow: hidden;
    border-radius: var(--login-card-radius);
    background: var(--login-white);
    box-shadow: var(--login-shadow);
}

.card-accent-corner {
    position: absolute;
    inset: 0 auto auto 0;
    z-index: 0;
    width: 150px;
    height: 150px;
    pointer-events: none;
    background: url("/img/card-login/yellow-bolb.svg") left top / contain no-repeat;
}

/* ============================================================
FORM
============================================================ */

.form-fields,
.button-group {
    padding-inline: var(--form-pad);
}

.form-fields label {
    display: block;
    margin-bottom: 6px;
    color: var(--login-navy);
    font-size: 12px;
    font-weight: 600;
    line-height: 1.3;
}

.input-wrapper {
    position: relative;
    margin-bottom: 13px;
}

.input-wrapper .icon-left,
.input-wrapper .icon-right {
    position: absolute;
    top: 50%;
    z-index: 1;
    width: 18px;
    height: 18px;
    color: var(--login-muted);
    transform: translateY(-50%);
}

.input-wrapper .icon-left {
    left: 14px;
    pointer-events: none;
}

.input-wrapper .icon-right {
    right: 14px;
}

.form-fields input {
    width: 100%;
    min-height: 42px;
    padding: 10px 42px;
    border: 1px solid transparent;
    border-radius: var(--login-control-radius);
    outline: none;
    background: var(--login-field);
    color: var(--login-navy);
    font-size: 13px;
    transition:
    border-color 160ms ease,
    background-color 160ms ease,
    box-shadow 160ms ease;
}

.form-fields input::placeholder {
    color: #9caebb;
}

.form-fields input:hover {
    border-color: #d6e0e9;
}

.form-fields input:focus {
    border-color: var(--login-navy);
    background: var(--login-white);
    box-shadow: 0 0 0 3px rgba(11, 58, 104, 0.1);
}

.form-fields input:disabled {
    cursor: wait;
    opacity: 0.72;
}

.btn-masuk {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 11px 14px;
    border: 0;
    border-radius: var(--login-control-radius);
    background: linear-gradient(180deg, #18548c 0%, var(--login-navy) 55%, var(--login-navy-dark) 100%);
    color: var(--login-white);
    font-family: var(--login-font-heading);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    box-shadow:
    0 10px 22px rgba(11, 58, 104, 0.32),
    0 3px 6px rgba(11, 58, 104, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    inset 0 -3px 6px rgba(7, 39, 76, 0.45);
    cursor: pointer;
    transition:
    background-color 160ms ease,
    box-shadow 160ms ease,
    transform 120ms ease;
}

.btn-masuk:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow:
    0 14px 28px rgba(11, 58, 104, 0.36),
    0 4px 8px rgba(11, 58, 104, 0.26),
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    inset 0 -3px 6px rgba(7, 39, 76, 0.45);
}

.btn-masuk:active:not(:disabled) {
    transform: translateY(1px);
    box-shadow:
    0 4px 10px rgba(11, 58, 104, 0.28),
    inset 0 2px 6px rgba(7, 39, 76, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.btn-masuk:focus-visible {
    outline: 3px solid rgba(11, 58, 104, 0.22);
    outline-offset: 2px;
}

.btn-masuk:disabled {
    cursor: wait;
}

.alert {
    /* Block-level: lebar otomatis mengisi kontainer DAN menghormati margin.
       (width:100% + margin akan meluber karena box-sizing border-box.) */
    padding: 10px 13px;
    border-radius: 8px;
    font-size: 12px;
    line-height: 1.35;
}

.alert-error {
    border: 1px solid var(--login-danger-line);
    background: var(--login-danger-bg);
    color: var(--login-danger);
}

/* Alert login utama berada DI LUAR .form-fields (lihat login.html),
   jadi lebarnya diatur margin yang mengikuti padding form. */
#login-success,
#login-error {
    margin: 0 var(--form-pad) 16px;
}

/* ============================================================
SMALL PHONE: 320-380
============================================================ */

@media (max-width: 380px) {
    .mobile-viewport {
        padding-bottom: max(22px, env(safe-area-inset-bottom));
    }

    .header-area {
        /* Bg 360x740: pita biru 360x226 -> 226/360. */
        min-height: calc(226 / 360 * 100vw);
        padding-block: clamp(16px, 4.5vw, 26px);
        background-image: url("/img/login-bg-360x740.webp");
    }

    .target-logo {
        width: clamp(50px, 14vw, 60px);
        margin-bottom: clamp(8px, 2.5vw, 12px);
    }

    .target-title {
        font-size: clamp(19px, 6.2vw, 24px);
    }

    .target-subtitle {
        font-size: clamp(11px, 3.3vw, 14px);
        line-height: 1.35;
    }

    .target-card {
        width: 100%;
        padding-bottom: 20px;
        border-radius: 17px;
    }

    :root {
        --form-pad: 18px;
    }

    .form-fields label {
        font-size: 11.5px;
    }

    .input-wrapper {
        margin-bottom: 11px;
    }

    .form-fields input {
        min-height: 40px;
        padding-block: 9px;
        font-size: 12.5px;
    }

    .btn-masuk {
        min-height: 42px;
        font-size: 13px;
    }
}

/* ============================================================
SHORT PHONE
============================================================ */

@media (max-width: 559px) and (max-height: 560px) {
    .mobile-viewport {
        padding-top: 14px;
        padding-bottom: max(16px, env(safe-area-inset-bottom));
    }

    .header-area {
        min-height: 0;
        padding-block: clamp(16px, 3svh, 26px);
    }

    .target-logo {
        width: clamp(44px, 12vw, 52px);
        margin-bottom: 6px;
    }

    .target-title {
        font-size: clamp(18px, 5.2vw, 22px);
    }

    .title-line {
        width: 54px;
        height: 3px;
        margin-top: 7px;
    }

    .target-subtitle {
        max-width: 390px;
        margin-top: 5px;
        font-size: clamp(10px, 2.7vw, 11.5px);
        line-height: 1.28;
    }

    .target-card {
        width: 100%;
        padding-bottom: 15px;
    }

    .input-wrapper {
        margin-bottom: 8px;
    }

    .form-fields input {
        min-height: 37px;
        padding-block: 7px;
    }

    .btn-masuk {
        min-height: 39px;
        padding-block: 8px;
    }
}

/*
* Ponsel sempit & pendek: isi kartu dipadatkan agar muat. Lebar kartu
* mengikuti aturan dasar (berbasis gutter) supaya proporsinya konsisten
* dengan ukuran layar lain.
*/

@media (max-width: 425px) and (max-height: 560px) {
    :root {
        --form-pad: 16px;
    }

    .target-card {
        width: 100%;
        padding-bottom: 12px;
        border-radius: 16px;
    }

    .form-fields label {
        margin-bottom: 4px;
        font-size: 11px;
    }

    .input-wrapper {
        margin-bottom: 7px;
    }

    .form-fields input {
        min-height: 35px;
        padding: 7px 36px;
        font-size: 12px;
    }

    .input-wrapper .icon-left,
    .input-wrapper .icon-right {
        width: 16px;
        height: 16px;
    }

    .input-wrapper .icon-left {
        left: 12px;
    }

    .input-wrapper .icon-right {
        right: 12px;
    }

    .btn-masuk {
        min-height: 36px;
        padding-block: 7px;
        font-size: 12.5px;
    }
}

/* ============================================================
PORTRAIT TABLET / LARGE PORTRAIT: 480+
Orientasi menjadi penentu utama agar tablet lebar tidak salah
diklasifikasikan sebagai laptop.
============================================================ */

@media (min-width: 480px) and (orientation: portrait) {
    /*
    * Konsep decouple yang sama: hero biru full-bleed (latar SVG sendiri),
    * konten putih di bawahnya. Tidak ada gambar full-page & tidak ada
    * pencocokan piksel. Hero diberi tinggi lega agar ilustrasi proporsional.
    */

    .header-area {
        /* Bg 768x1024: pita biru 768x472 -> 472/768 (cover, berbasis lebar). */
        min-height: calc(472 / 768 * 100vw);
        padding-block: clamp(28px, 5vw, 64px);
        background-image: url("/img/login-bg-768x1024.webp");
    }

    .target-logo {
        width: clamp(84px, 12vw, 132px);
        margin-bottom: clamp(18px, 2.6svh, 32px);
    }

    .target-title {
        max-width: 100%;
        font-size: clamp(34px, 6vw, 58px);
        line-height: 1.1;
    }

    .title-line {
        width: clamp(92px, 13vw, 144px);
        height: 4px;
        margin-top: clamp(16px, 2.2svh, 28px);
    }

    .target-subtitle {
        max-width: 40ch;
        margin-top: clamp(16px, 2.2svh, 28px);
        font-size: clamp(16px, 2.7vw, 24px);
        line-height: 1.45;
    }

    /*
    * Kartu login ikut membesar di tablet portrait agar tidak terlihat kecil
    * dan mengisi ruang putih. Lebar kartu naik + seluruh elemen di dalamnya
    * (tab, label, input, tombol, info-card) diskalakan naik.
    */

    .login-column {
        width: min(100% - 2 * var(--card-gutter), clamp(540px, 64vw, 700px));
        padding-block: clamp(28px, 5svh, 56px);
    }

    :root {
        --form-pad: 30px;
    }

    .target-card {
        width: 100%;
        border-radius: 24px;
    }

    .form-fields label {
        margin-bottom: 8px;
        font-size: 14px;
    }

    .input-wrapper {
        margin-bottom: 16px;
    }

    .form-fields input {
        min-height: 54px;
        padding: 12px 48px;
        border-radius: 12px;
        font-size: 15.5px;
    }

    .input-wrapper .icon-left,
    .input-wrapper .icon-right {
        width: 20px;
        height: 20px;
    }

    .input-wrapper .icon-left {
        left: 16px;
    }

    .input-wrapper .icon-right {
        right: 16px;
    }

    .btn-masuk {
        min-height: 56px;
        border-radius: 12px;
        font-size: 16.5px;
    }
}

/* ============================================================
   LANDSCAPE >= 640px — DECOUPLE DUA PANEL
   Latar dipecah jadi dua aset paruh yang dikuasai LAYOUT:
   panel kiri (hero) = blue-bg-login-ls.svg, panel kanan (kartu) =
   white-bg-login-ls.svg. Keduanya 50/50 dan bertemu di seam tengah,
   jadi batas biru/putih = tepi panel. Hero/kartu diberi padding ke
   arah seam supaya tidak pernah menyentuh lengkungan.
   ============================================================ */
@media (min-width: 640px) and (orientation: landscape) {
    .mobile-viewport-container {
        min-height: 100svh;
        background-color: #eef5ff;
        background-image: none;
    }

    .mobile-viewport {
        min-height: 100svh;
        display: grid;
        grid-template-columns: 1fr 1fr;
        /* Satu baris setinggi viewport yang BOLEH menyusut (minmax 0) supaya
           panel bisa membatasi tinggi & men-scroll isinya, bukan meluber. */
        grid-template-rows: minmax(0, 1fr);
        align-items: stretch;
        gap: 0;
        padding: 0;
    }

    .header-area {
        min-height: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        /* padding-kanan besar -> hero menjauh dari lengkungan di seam */
        padding:
            clamp(24px, 6svh, 56px)
            clamp(48px, 12vw, 180px)
            clamp(24px, 6svh, 56px)
            clamp(28px, 6vw, 88px);
        background: url("/img/blue-bg-login-ls.svg") right center / cover no-repeat;
    }

    .login-column {
        /* Lebar maksimum kartu di landscape; dipakai bersama oleh kartu
           login DAN kartu Akses Terbatas (login-petugas.css) agar sama. */
        --ls-card-max: 420px;
        align-self: stretch;
        /* min-height:0 -> grid item boleh lebih pendek dari kontennya,
           sehingga overflow-y di bawah benar-benar men-scroll. */
        min-height: 0;
        width: 100%;
        margin-inline: 0;
        align-items: center;
        /* safe center: tetap di tengah saat muat, rata-atas saat konten
           lebih tinggi dari panel (anti terpotong) -> panel yang discroll. */
        justify-content: safe center;
        overflow-y: auto;
        scrollbar-width: thin;
        /* padding-kiri besar -> kartu menjauh dari lengkungan di seam */
        padding:
            clamp(24px, 6svh, 56px)
            clamp(28px, 5vw, 72px)
            clamp(24px, 6svh, 56px)
            clamp(48px, 9vw, 130px);
        background: url("/img/white-bg-login-ls.svg") left center / cover no-repeat;
    }

    .target-card {
        width: 100%;
        max-width: var(--ls-card-max);
    }
}

/* ============================================================
LANDSCAPE TABLET: 640-899
============================================================ */

@media (min-width: 640px) and (max-width: 899px) and (orientation: landscape) {
    .target-logo {
        width: clamp(48px, 7vw, 60px);
        margin-bottom: 9px;
    }

    .target-title {
        max-width: 100%;
        font-size: clamp(21px, 3vw, 27px);
        line-height: 1.12;
    }

    .target-subtitle {
        max-width: 100%;
        font-size: clamp(12px, 1.7vw, 14px);
    }

    .login-column {
        --ls-card-max: 360px;
    }
}

/* ============================================================
LAPTOP: 900-1199
============================================================ */

@media (min-width: 900px) and (orientation: landscape) {
    html,
    body.mobile-body {
        height: 100%;
        overflow: hidden;
    }

    .mobile-viewport-container {
        height: 100vh;
        height: 100svh;
        min-height: 0;
    }

    .mobile-viewport {
        height: 100vh;
        height: 100svh;
        min-height: 0;
    }

    .target-logo {
        width: clamp(60px, 6.2vw, 74px);
        margin-bottom: 16px;
    }

    .target-title {
        max-width: 100%;
        font-size: clamp(26px, 2.9vw, 36px);
        line-height: 1.12;
    }

    .title-line {
        width: 76px;
        height: 4px;
        margin-top: 14px;
    }

    :root {
        --form-pad: 30px;
    }

    .target-subtitle {
        max-width: 100%;
        margin-top: 13px;
        font-size: clamp(14px, 1.5vw, 17px);
        line-height: 1.38;
    }
}

/* ============================================================
DESKTOP: 1200+
============================================================ */

@media (min-width: 1200px) and (orientation: landscape) {
    .target-logo {
        width: clamp(72px, 5.2vw, 88px);
        margin-bottom: 20px;
    }

    .target-title {
        max-width: 100%;
        font-size: clamp(34px, 3vw, 48px);
        line-height: 1.1;
    }

    .target-subtitle {
        max-width: 100%;
        margin-top: 16px;
        font-size: clamp(17px, 1.4vw, 21px);
        line-height: 1.42;
    }

    :root {
        --form-pad: 32px;
    }

    .login-column {
        --ls-card-max: 460px;
    }
}

/* ============================================================
SHORT DESKTOP
============================================================ */

@media (min-width: 900px) and (max-height: 700px) and (orientation: landscape) {
    .header-area,
    .login-column {
        padding-block: clamp(14px, 4svh, 30px);
    }

    .target-logo {
        width: 62px;
        margin-bottom: 12px;
    }

    .target-title {
        font-size: clamp(29px, 3vw, 34px);
    }

    .title-line {
        margin-top: 11px;
    }

    .target-subtitle {
        margin-top: 10px;
        font-size: clamp(14px, 1.5vw, 16px);
    }

    .target-card {
        padding-bottom: 18px;
    }

    .input-wrapper {
        margin-bottom: 9px;
    }

    .form-fields input {
        min-height: 39px;
        padding-block: 8px;
    }

    .btn-masuk {
        min-height: 41px;
        padding-block: 9px;
    }
}

/* ============================================================
ULTRA-WIDE: 1600+
Layar sangat lebar: kartu, form, dan tipografi hero ikut membesar
(fluid via vw) supaya kedua panel tidak dipenuhi ruang kosong.
Nilai clamp dipilih menyambung mulus dari breakpoint 1200+.
============================================================ */

@media (min-width: 1600px) and (orientation: landscape) {
    .header-area {
        padding:
            clamp(32px, 7svh, 72px)
            clamp(180px, 13vw, 340px)
            clamp(32px, 7svh, 72px)
            clamp(88px, 7vw, 190px);
    }

    .target-logo {
        width: clamp(88px, 4.6vw, 118px);
        margin-bottom: 24px;
    }

    .target-title {
        font-size: clamp(48px, 3vw, 66px);
    }

    .title-line {
        width: clamp(88px, 5.5vw, 132px);
        height: 5px;
        margin-top: 18px;
    }

    .target-subtitle {
        margin-top: 20px;
        font-size: clamp(21px, 1.25vw, 27px);
    }

    .login-column {
        --ls-card-max: clamp(480px, 30vw, 780px);
        padding:
            clamp(32px, 7svh, 72px)
            clamp(64px, 5vw, 120px)
            clamp(32px, 7svh, 72px)
            clamp(110px, 7vw, 180px);
    }

    :root {
        --form-pad: clamp(32px, 2.2vw, 56px);
    }

    .form-fields label {
        margin-bottom: 8px;
        font-size: clamp(12px, 0.82vw, 16px);
    }

    .input-wrapper {
        margin-bottom: clamp(13px, 1vw, 20px);
    }

    .form-fields input {
        min-height: clamp(42px, 2.4vw, 60px);
        padding-inline: clamp(42px, 2.2vw, 52px);
        border-radius: 12px;
        font-size: clamp(13px, 0.9vw, 17px);
    }

    .input-wrapper .icon-left,
    .input-wrapper .icon-right {
        width: clamp(18px, 1vw, 22px);
        height: clamp(18px, 1vw, 22px);
    }

    .input-wrapper .icon-left {
        left: clamp(14px, 0.8vw, 18px);
    }

    .input-wrapper .icon-right {
        right: clamp(14px, 0.8vw, 18px);
    }

    .btn-masuk {
        min-height: clamp(44px, 2.5vw, 62px);
        border-radius: 12px;
        font-size: clamp(14px, 0.95vw, 18px);
    }

    .alert {
        padding: clamp(10px, 0.85vw, 16px) clamp(13px, 1.1vw, 22px);
        border-radius: clamp(8px, 0.6vw, 11px);
        font-size: clamp(12px, 0.82vw, 16px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .tab-btn,
    .form-fields input,
    .btn-masuk {
        transition: none;
    }
}