/*
 * Přihlašovací stránka administrace (template/login).
 *
 * Barvy, písmo i rozměry jsou v proměnných na :root. Projekt je přepíše ve vlastním
 * CSS přidaném přes application/config/login.php ('css' => [...]) - to se vloží za
 * tento soubor, takže stačí např. :root { --login-primary: #60a000; }.
 *
 * Výchozí paleta vychází z loga Macros: tmavá modrošedá #203040 a zlatá #e5b81f.
 */
:root {
    color-scheme: light;
    accent-color: var(--login-primary);

    --login-aside-bg: #16202b;
    --login-aside-text: #fff;
    --login-aside-muted: rgba(255, 255, 255, 0.72);
    --login-aside-faint: rgba(255, 255, 255, 0.5);
    --login-aside-glow: rgba(229, 184, 31, 0.32);
    --login-aside-glow-soft: rgba(130, 150, 171, 0.18);
    --login-aside-width: 32rem;

    --login-accent: #e5b81f;
    --login-accent-text: #7f5d00;

    --login-primary: #203040;
    --login-primary-hover: #2c3d4f;
    --login-primary-active: #16202b;
    --login-primary-text: #fff;
    /* Linka pod odesílacím tlačítkem - projekt s jinou paletou ji dá klidně transparent. */
    --login-primary-line: var(--login-accent);
    --login-focus-ring: rgba(32, 48, 64, 0.2);

    --login-page: #f8f8f8;
    --login-surface: #fff;
    --login-line: #dcdcdc;
    --login-heading: #1d1d1d;
    --login-ink: #1d1d1d;
    --login-ink-soft: #3d3d3d;
    --login-muted: #6b6b6b;

    --login-danger: #a32b23;
    --login-danger-bg: #fdf3f2;
    --login-danger-line: #f0d0cd;
    --login-info: #203040;
    --login-info-bg: #eef2f6;
    --login-info-line: #cfd8e2;
    --login-warn: #8a6100;

    --login-logo-width: 12rem;
    --login-radius: 0;

    --login-font-display: "Raleway", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --login-font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body.auth-body {
    margin: 0;
    background-color: var(--login-page);
    color: var(--login-ink);
    font-family: var(--login-font-body);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Rozvržení - vlevo tmavý panel, vpravo formulář */

.auth-layout {
    display: grid;
    grid-template-columns: minmax(20rem, var(--login-aside-width)) 1fr;
    min-height: 100vh;
    min-height: 100svh;
}

.auth-aside {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    padding: 3.25rem 3rem 2.25rem;
    background: var(--login-aside-bg);
    color: var(--login-aside-text);
}

/* Dekorace panelu: zlaté nasvětlení zdola, chladný odlesk nahoře a jemná šikmá mřížka. */
.auth-aside__pattern {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        radial-gradient(32rem 26rem at 114% 110%, var(--login-aside-glow), transparent 60%),
        radial-gradient(26rem 20rem at -8% -6%, var(--login-aside-glow-soft), transparent 68%),
        repeating-linear-gradient(102deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 2.75rem);
}

/* Soustředné kruhy vlevo dole - drží se v pozadí. */
.auth-aside__pattern::after {
    content: "";
    position: absolute;
    left: -45%;
    bottom: -60%;
    width: 60rem;
    height: 60rem;
    border-radius: 50%;
    background: repeating-radial-gradient(circle, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 3.25rem);
    -webkit-mask-image: radial-gradient(circle, #000 30%, transparent 72%);
    mask-image: radial-gradient(circle, #000 30%, transparent 72%);
}

.auth-aside__inner,
.auth-aside__foot {
    position: relative;
    z-index: 1;
}

.auth-aside__brand {
    margin: 0;
    line-height: 1;
}

.auth-aside__logo {
    display: block;
    width: auto;
    max-width: var(--login-logo-width);
    height: auto;
}

.auth-aside__kicker {
    margin: 3.25rem 0 0.85rem;
    font-family: var(--login-font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--login-accent);
}

.auth-aside__claim {
    max-width: 14ch;
    margin: 0;
    font-family: var(--login-font-display);
    font-size: clamp(1.8rem, 2.7vw, 2.5rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.auth-aside__claim::after {
    content: "";
    display: block;
    width: 3.5rem;
    height: 3px;
    margin-top: 1.5rem;
    background: var(--login-accent);
}

.auth-aside__points {
    display: grid;
    gap: 0.9rem;
    margin: 2rem 0 0;
    padding: 0;
    list-style: none;
    font-family: var(--login-font-display);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--login-aside-muted);
}

.auth-aside__points li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.auth-aside__points .bi {
    flex: 0 0 auto;
    font-size: 1.1rem;
    letter-spacing: normal;
    color: var(--login-accent);
}

.auth-aside__foot {
    margin: 2.5rem 0 0;
    font-size: 0.78rem;
    color: var(--login-aside-faint);
}

.auth-aside__foot a {
    color: inherit;
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.25);
    text-underline-offset: 2px;
}

.auth-aside__foot a:hover {
    color: var(--login-aside-text);
}

/* Sloupec s formulářem */

.auth-main {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
}

.auth-main__inner {
    width: 100%;
    max-width: 23.5rem;
}

.auth-head {
    margin-bottom: 1.85rem;
}

.auth-head__eyebrow {
    margin: 0 0 0.6rem;
    font-family: var(--login-font-display);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--login-accent-text);
}

.auth-head__title {
    margin: 0 0 0.75rem;
    font-family: var(--login-font-display);
    font-size: 1.5rem;
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--login-heading);
}

.auth-head__subtitle {
    margin: 0;
    font-size: 0.925rem;
    line-height: 1.55;
    color: var(--login-muted);
}

/* Hláška z flash session */

.auth-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    margin-bottom: 1.35rem;
    padding: 0.8rem 0.9rem;
    border: 1px solid var(--login-danger-line);
    border-left: 3px solid var(--login-danger);
    border-radius: var(--login-radius);
    background: var(--login-danger-bg);
    color: var(--login-danger);
}

.auth-alert--info {
    border-color: var(--login-info-line);
    border-left-color: var(--login-info);
    background: var(--login-info-bg);
    color: var(--login-info);
}

.auth-alert__icon {
    flex: 0 0 auto;
    font-size: 1.05rem;
    line-height: 1.4;
}

.auth-alert__text {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.5;
    /* Víceřádkové hlášky přichází z flash session oddělené znakem nového řádku. */
    white-space: pre-line;
}

/* Pole formuláře */

.auth-form {
    margin: 0;
}

.auth-field {
    margin-bottom: 1.05rem;
}

.auth-field__label {
    display: block;
    margin-bottom: 0.4rem;
    font-family: var(--login-font-display);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--login-ink-soft);
}

.auth-field__wrap {
    position: relative;
}

.auth-field__input {
    width: 100%;
    height: 3rem;
    margin: 0;
    padding: 0 0.9rem;
    border: 1px solid var(--login-line);
    border-radius: var(--login-radius);
    background: var(--login-surface);
    color: var(--login-ink);
    font-family: var(--login-font-body);
    font-size: 1rem;
    line-height: 1.2;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.auth-field__input--password {
    padding-right: 3rem;
}

.auth-field__input:hover {
    border-color: #bdbdbd;
}

.auth-field__input:focus {
    outline: 0;
    border-color: var(--login-primary);
    box-shadow: 0 0 0 0.2rem var(--login-focus-ring);
}

.auth-field__toggle {
    position: absolute;
    top: 50%;
    right: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    transform: translateY(-50%);
    border: 0;
    border-radius: var(--login-radius);
    background: transparent;
    color: var(--login-muted);
    font-size: 1.15rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out;
}

.auth-field__toggle:hover {
    background: rgba(32, 48, 64, 0.07);
    color: var(--login-primary);
}

.auth-field__toggle:focus-visible {
    outline: 0;
    box-shadow: 0 0 0 0.2rem var(--login-focus-ring);
    color: var(--login-primary);
}

.auth-field__hint {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    margin: 0.4rem 0 0;
    font-size: 0.78rem;
    color: var(--login-warn);
}

.auth-field__hint[hidden] {
    display: none;
}

/* Zaškrtávátko */

.auth-check {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0.5rem 0 1.5rem;
    cursor: pointer;
    user-select: none;
}

/*
 * Nativní checkbox zůstává v DOM kvůli klávesnici a odesílání formuláře,
 * vidět je místo něj .auth-check__box.
 */
.auth-check__input {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: 0;
    opacity: 0;
    pointer-events: none;
}

.auth-check__box {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 1.15rem;
    height: 1.15rem;
    border: 1px solid #c4c4c4;
    border-radius: var(--login-radius);
    background: var(--login-surface);
    color: transparent;
    font-size: 0.85rem;
    line-height: 1;
    transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, color 0.15s ease-in-out;
}

.auth-check__input:checked + .auth-check__box {
    border-color: var(--login-primary);
    background: var(--login-primary);
    color: var(--login-primary-text);
}

.auth-check__input:focus-visible + .auth-check__box {
    box-shadow: 0 0 0 0.2rem var(--login-focus-ring);
}

.auth-check__label {
    font-size: 0.875rem;
    color: var(--login-ink-soft);
}

/* Odesílací tlačítko */

.auth-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    width: 100%;
    height: 3.4rem;
    padding: 0 1.25rem;
    border: 0;
    border-bottom: 3px solid var(--login-primary-line);
    border-radius: var(--login-radius);
    background: var(--login-primary);
    color: var(--login-primary-text);
    font-family: var(--login-font-display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 3px;
    line-height: 1.2;
    text-transform: uppercase;
    cursor: pointer;
    transition: background-color 0.15s ease-in-out;
}

.auth-submit:hover {
    background: var(--login-primary-hover);
}

.auth-submit:active {
    background: var(--login-primary-active);
}

.auth-submit:focus-visible {
    outline: 0;
    box-shadow: 0 0 0 0.2rem var(--login-surface), 0 0 0 0.4rem var(--login-primary);
}

.auth-submit__icon {
    font-size: 1.2rem;
    letter-spacing: normal;
    transition: transform 0.15s ease-in-out;
}

.auth-submit:hover .auth-submit__icon {
    transform: translateX(0.2rem);
}

.auth-submit__spinner {
    display: none;
    width: 1.1rem;
    height: 1.1rem;
    border: 2px solid rgba(255, 255, 255, 0.45);
    border-top-color: var(--login-primary-text);
    border-radius: 50%;
    animation: auth-spin 0.6s linear infinite;
}

.auth-submit.is-loading {
    pointer-events: none;
    background: var(--login-primary-hover);
}

.auth-submit.is-loading .auth-submit__spinner {
    display: block;
}

.auth-submit.is-loading .auth-submit__icon {
    display: none;
}

@keyframes auth-spin {
    to {
        transform: rotate(360deg);
    }
}

.auth-note {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    margin: 1.85rem 0 0;
    padding-top: 1.35rem;
    border-top: 1px solid var(--login-line);
    font-size: 0.8rem;
    color: var(--login-muted);
}

/* Úzký displej - z panelu zůstane jen tmavý pruh s logem */

@media (max-width: 64rem) {
    .auth-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .auth-aside {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding: 1.25rem 1.5rem;
    }

    .auth-aside__pattern::after {
        display: none;
    }

    .auth-aside__logo {
        max-width: calc(var(--login-logo-width) * 0.8);
    }

    .auth-aside__kicker,
    .auth-aside__claim,
    .auth-aside__points {
        display: none;
    }

    .auth-aside__foot {
        margin: 0;
        text-align: right;
    }

    .auth-main {
        align-items: flex-start;
        padding: 2.5rem 1.25rem 3rem;
    }
}

@media (max-width: 30rem) {
    .auth-aside__foot {
        display: none;
    }

    .auth-submit {
        letter-spacing: 1.5px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .auth-field__input,
    .auth-field__toggle,
    .auth-check__box,
    .auth-submit,
    .auth-submit__icon {
        transition: none;
    }

    .auth-submit:hover .auth-submit__icon {
        transform: none;
    }

    .auth-submit__spinner {
        animation-duration: 2s;
    }
}