/**
 * Klub Bambule 2026-9 — vlastní náhrada strukturální vrstvy Bootstrapu
 * (grid, formuláře, tlačítka, offcanvas, alert). Vizuální doladění (barvy,
 * fonty, rozměry) zůstává v theme.css, který se linkuje HNED PO tomto
 * souboru a přepisuje tu pár věcí (--bs-btn-*, .form-control apod.).
 *
 * Hodnoty tu nejsou vymyšlené — jsou to computed styles změřené na tomto
 * webu, dokud ještě běžel na Bootstrapu 5.3.2 (`.btn-success`, `.form-select`
 * šipka, `.row`/`.col-*` gutter, `.form-check-input`), aby přechod byl beze
 * změny vzhledu. `.alert` byl už předtím bez stylu (nebyl v bootstrap-slim.scss),
 * proto má tady nový, konzistentní vzhled místo neexistujícího "starého".
 */

/* ==========================================================================
   0. Reset (dřív dělal Bootstrapův reboot.scss — bez něj má body 8px UA
      margin a nadpisy/odstavce/seznamy si nesou prohlížečové výchozí okraje)
   ========================================================================== */

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

body {
    margin: 0;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
}

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

ol, ul, dl {
    margin-top: 0;
    margin-bottom: 1rem;
}

button, input, select, textarea {
    margin: 0;
    font-family: inherit;
    font-size: 100%;
    line-height: inherit;
}

/* ==========================================================================
   1. Grid — jediný breakpoint (lg = 992px), přesně to, co appky používají
   ========================================================================== */

.row {
    display: flex;
    flex-wrap: wrap;
    margin-left: -12px;
    margin-right: -12px;
}

.row > * {
    box-sizing: border-box;
    padding-left: 12px;
    padding-right: 12px;
    flex: 0 0 auto;
    width: 100%;
}

.col-12 {
    width: 100%;
}

@media (min-width: 992px) {
    .col-lg-4 {
        width: 33.33333%;
    }

    .col-lg-6 {
        width: 50%;
    }

    .col-lg-8 {
        width: 66.66667%;
    }

    .col-lg-12 {
        width: 100%;
    }

    .col-lg {
        flex: 1 1 0%;
        width: auto;
    }
}

/* Aktivační formulář: dvousloupcová dvojice (Jméno/Příjmení apod.) platí na
   všech šířkách, ne jen od lg — col-lg-* tam zůstávají kvůli zbytku webu */
.activation-form .col-lg-4 {
    width: 33.33333%;
}

.activation-form .col-lg-6 {
    width: 50%;
}

.activation-form .col-lg-8 {
    width: 66.66667%;
}

/* ==========================================================================
   2. Formuláře
   ========================================================================== */

.form-control,
.form-select {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 0.375rem 0.75rem;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus,
.form-select:focus {
    color: #212529;
    background-color: #fff;
    outline: 0;
}

.form-select {
    padding-right: 2.25rem;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
}

.form-label {
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-text {
    margin-top: 0.25rem;
    font-size: 0.875em;
    color: #6c757d;
}

.is-invalid {
    border-color: var(--brand-scarlet, #dc3545) !important;
}

.is-valid {
    border-color: #198754 !important;
}

.invalid-feedback {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875em;
    color: var(--brand-scarlet, #dc3545);
}

.valid-feedback {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875em;
    color: #198754;
}

/* form-floating — plovoucí popisek, přesně dle Bootstrap 5.3 chování */
.form-floating {
    position: relative;
}

.form-floating > .form-control,
.form-floating > .form-select {
    height: calc(3.5rem + 2px);
    min-height: calc(3.5rem + 2px);
    line-height: 1.25;
}

.form-floating > label {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    max-width: 100%;
    height: 100%;
    padding: 1rem 0.75rem;
    overflow: hidden;
    color: rgba(33, 37, 41, 0.65);
    text-align: start;
    text-overflow: ellipsis;
    white-space: nowrap;
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
}

.form-floating > .form-control {
    padding: 1rem 0.75rem;
}

.form-floating > .form-control::placeholder {
    color: transparent;
}

.form-floating > .form-control:focus,
.form-floating > .form-control:not(:placeholder-shown) {
    padding-top: 1.625rem;
    padding-bottom: 0.625rem;
}

.form-floating > .form-select {
    padding-top: 1.625rem;
    padding-bottom: 0.625rem;
    padding-left: 0.75rem;
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label,
.form-floating > .form-select ~ label {
    opacity: 0.65;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

.form-floating > :disabled ~ label {
    color: #6c757d;
}

/* form-check (checkbox) — vlastní zaškrtávátko se stejnou velikostí jako Bootstrap */
.form-check {
    --form-check-size: calc(3.5rem + 2px); /* stejná výška jako ostatní pole (.form-floating) */
    --form-check-gap: 0.75rem;
    display: flex;
    align-items: center;
    gap: var(--form-check-gap);
    min-height: var(--form-check-size);
    margin-bottom: 0.125rem;
}

.form-check-input {
    flex: 0 0 auto;
    width: var(--form-check-size);
    height: var(--form-check-size);
    margin: 0;
    box-sizing: border-box;
    appearance: none;
    background-color: #fff;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    border: 4px solid var(--brand-ink, #111);
    border-radius: var(--radius-field, 16px);
}

.form-check-input[type="checkbox"] {
    cursor: pointer;
}

.form-check-input:checked {
    background-color: #fff;
    border-color: var(--brand-ink, #111);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23111111' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='m6 10 3 3 6-6'/%3e%3c/svg%3e");
}

.form-check-input:focus-visible {
    outline: 2px solid var(--brand-blue, #1e62ac);
    outline-offset: 2px;
}

.form-check-label {
    cursor: pointer;
}

/* ==========================================================================
   3. Tlačítka — stejná --bs-btn-* konvence, na kterou už sahá theme.css
   ========================================================================== */

.btn {
    --bs-btn-padding-x: 0.75rem;
    --bs-btn-padding-y: 0.375rem;
    --bs-btn-font-family: inherit;
    --bs-btn-font-size: 1rem;
    --bs-btn-font-weight: 400;
    --bs-btn-line-height: 1.5;
    --bs-btn-color: var(--brand-ink, #111);
    --bs-btn-bg: transparent;
    --bs-btn-border-width: 1px;
    --bs-btn-border-color: transparent;
    --bs-btn-border-radius: 0.375rem;
    --bs-btn-hover-color: var(--bs-btn-color);
    --bs-btn-hover-bg: var(--bs-btn-bg);
    --bs-btn-hover-border-color: var(--bs-btn-border-color);
    --bs-btn-active-color: var(--bs-btn-hover-color);
    --bs-btn-active-bg: var(--bs-btn-hover-bg);
    --bs-btn-active-border-color: var(--bs-btn-hover-border-color);
    --bs-btn-disabled-opacity: 0.65;
    display: inline-block;
    box-sizing: border-box;
    padding: var(--bs-btn-padding-y) var(--bs-btn-padding-x);
    font-family: var(--bs-btn-font-family);
    font-size: var(--bs-btn-font-size);
    font-weight: var(--bs-btn-font-weight);
    line-height: var(--bs-btn-line-height);
    color: var(--bs-btn-color);
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    background-color: var(--bs-btn-bg);
    border: var(--bs-btn-border-width) solid var(--bs-btn-border-color);
    border-radius: var(--bs-btn-border-radius);
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out,
        border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.btn:hover {
    color: var(--bs-btn-hover-color);
    background-color: var(--bs-btn-hover-bg);
    border-color: var(--bs-btn-hover-border-color);
}

.btn:active {
    color: var(--bs-btn-active-color);
    background-color: var(--bs-btn-active-bg);
    border-color: var(--bs-btn-active-border-color);
}

.btn:disabled {
    opacity: var(--bs-btn-disabled-opacity);
    pointer-events: none;
}

.btn-primary,
.btn-secondary,
.btn-danger {
    /* theme.css přebíjí barvu přes .btn:where(:not(.btn-outline...):not(.btn-success))
       na brand-red/brand-navy — tahle výchozí hodnota je jen záložní. */
    --bs-btn-color: #fff;
    --bs-btn-bg: var(--brand-blue, #1e62ac);
    --bs-btn-hover-bg: var(--brand-blue-dark, #1b589b);
}

.btn-danger {
    --bs-btn-bg: #dc3545;
    --bs-btn-hover-bg: #bb2d3b;
}

/* .btn-success zůstává mimo brand paletu (dnešní chování — theme.css ho
   záměrně vynechává z přebarvení), stejné zelené jako předtím na Bootstrapu. */
.btn-success {
    --bs-btn-color: #fff;
    --bs-btn-bg: #198754;
    --bs-btn-border-color: #198754;
    --bs-btn-hover-bg: #157347;
    --bs-btn-hover-border-color: #146c43;
}

.btn-outline-secondary {
    --bs-btn-color: #6c757d;
    --bs-btn-border-color: #6c757d;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #6c757d;
    --bs-btn-hover-border-color: #6c757d;
}

/* ==========================================================================
   4. Layout utility třídy použité v šablonách
   ========================================================================== */

.d-flex {
    display: flex;
}

.d-grid {
    display: grid;
}

.gap-2 {
    gap: 0.5rem;
}

.w-100 {
    width: 100%;
}

.m-0 { margin: 0 !important; }
.m-1 { margin: 0.25rem !important; }
.m-2 { margin: 0.5rem !important; }
.m-3 { margin: 1rem !important; }
.m-4 { margin: 1.5rem !important; }
.m-5 { margin: 3rem !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }
.mt-3 { margin-top: 1rem !important; }

/* ==========================================================================
   5. Alert (flash zprávy + blocks.latte)
   ========================================================================== */

.alert {
    position: relative;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius-field, 0.5rem);
}

.alert-success {
    color: #0f5132;
    background-color: #d1e7dd;
    border-color: #badbcc;
}

.alert-danger {
    color: #842029;
    background-color: #f8d7da;
    border-color: #f5c2c7;
}

.alert-warning {
    color: #664d03;
    background-color: #fff3cd;
    border-color: #ffecb5;
}

/* ==========================================================================
   6. Offcanvas mobilní menu (vlastní JS — viz assets/2026-9/js/offcanvas.js)
   ========================================================================== */

.offcanvas {
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: 1045;
    display: flex;
    flex-direction: column;
    max-width: 100%;
    color: var(--brand-ink, #111);
    background-color: #fff;
    background-clip: padding-box;
    outline: 0;
    transition: transform 0.3s ease-in-out;
    visibility: hidden;
}

.offcanvas-end {
    right: 0;
    width: 400px;
    border-left: 1px solid rgba(0, 0, 0, 0.175);
    transform: translateX(100%);
}

.offcanvas-start {
    left: 0;
    width: 400px;
    border-right: 1px solid rgba(0, 0, 0, 0.175);
    transform: translateX(-100%);
}

.offcanvas.open {
    visibility: visible;
    transform: translateX(0);
}

.offcanvas-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
}

.offcanvas-title {
    margin-bottom: 0;
    line-height: 1.5;
}

.offcanvas-body {
    flex-grow: 1;
    padding: 0 1rem 1rem;
    overflow-y: auto;
}

.btn-close {
    box-sizing: content-box;
    width: 1em;
    height: 1em;
    padding: 0.25em;
    color: #000;
    background: transparent
        url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='%23000' d='M.293.293a1 1 0 0 1 1.414 0L8 6.586 14.293.293a1 1 0 1 1 1.414 1.414L9.414 8l6.293 6.293a1 1 0 0 1-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 0 1-1.414-1.414L6.586 8 .293 1.707a1 1 0 0 1 0-1.414z'/%3e%3c/svg%3e")
        center/1em auto no-repeat;
    border: 0;
    border-radius: 0.375rem;
    opacity: 0.5;
    cursor: pointer;
}

.btn-close:hover {
    opacity: 0.75;
}

.kb-offcanvas-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1040;
    background-color: rgba(0, 0, 0, 0.5);
}

body.kb-offcanvas-open {
    overflow: hidden;
}

@media (max-width: 400px) {
    .offcanvas-end,
    .offcanvas-start {
        width: 100%;
    }
}