/*
 * Copyright 2026 Akop Karapetyan
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* ── Design tokens (Win 3.1 palette) ─────────────────────── */
:root {
    --face:    #c0c0c0;   /* standard gray */
    --lt:      #ffffff;   /* outer highlight */
    --lt2:     #dfdfdf;   /* inner highlight */
    --dk:      #808080;   /* shadow */
    --xdk:     #000000;   /* deep shadow */
    --active:  #000080;   /* title bar / selection blue */
    --acttext: #ffffff;
    --felt:    #008000;
    --text:    #000000;
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
    background: var(--felt);
    font-family: 'Arial', sans-serif;
    font-size: 12px;
    color: var(--text);
    overflow: hidden;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

/* ── Window frame ─────────────────────────────────────────── */
#win-frame {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100dvh;
    padding: env(safe-area-inset-top)  env(safe-area-inset-right)
             env(safe-area-inset-bottom) env(safe-area-inset-left);
    background: var(--felt);
}

/* ── Menu bar ─────────────────────────────────────────────── */
#menu-bar {
    display: flex;
    height: 20px;
    background: #fff;
    align-items: stretch;
    border-bottom: 1px solid #000;
    flex-shrink: 0;
    padding: 0 4px;
    font-size: 15px;
    font-weight: 600;
}

#st-score,
#st-time {
    align-self: center;
    margin-left: 4px;
}

#st-time {
    margin-right: 8px;
}

#st-score {
    margin-left: auto;
}

.menu-btn {
    background: transparent;
    border: 1px solid transparent;
    padding: 2px 8px;
    font-family: inherit;
    font-weight: inherit;
    font-size: inherit;
    cursor: pointer;
    color: var(--text);
    display: inline-flex;
    align-items: center;
}

.menu-btn:hover,
.menu-btn.active {
    background: var(--active);
    color: var(--acttext);
}

/* ── Game canvas ──────────────────────────────────────────── */
#canvas-wrap {
    flex: 1;
    overflow: hidden;
    position: relative;
    min-height: 0;
    background: var(--felt);
}

#board {
    display: block;
    width: 100%;
    height: 100%;
    touch-action: none;
    cursor: default;
}


/* ── Dropdown menus ───────────────────────────────────────── */
.dropdown {
    position: fixed;
    background: var(--face);
    border: 2px solid;
    border-color: var(--lt) var(--xdk) var(--xdk) var(--lt);
    z-index: 1000;
    min-width: 156px;
    box-shadow: 2px 2px 0 var(--dk);
}

.dd-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 8px 4px 12px;
    cursor: pointer;
    font-size: 12px;
    white-space: nowrap;
    gap: 16px;
}

.dd-item:hover {
    background: var(--active);
    color: var(--acttext);
}

.dd-item:hover .dd-hotkey { color: var(--acttext); }

.dd-hotkey {
    color: var(--dk);
    font-size: 11px;
}

.dd-item.disabled {
    color: var(--dk);
    pointer-events: none;
}

.dd-sep {
    height: 1px;
    margin: 2px 0;
    background: var(--dk);
    border-bottom: 1px solid var(--lt);
}

/* ── Modal overlay ────────────────────────────────────────── */
#overlay {
    position: fixed;
    inset: 0;
    z-index: 500;
    background: rgba(0, 0, 0, 0.08);
}

/* ── Dialogs ──────────────────────────────────────────────── */
.dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--face);
    border: 2px solid;
    border-color: var(--lt) var(--xdk) var(--xdk) var(--lt);
    z-index: 600;
    min-width: 260px;
    max-height: 90dvh;
    overflow-y: auto;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
}

.dlg-title {
    display: flex;
    align-items: center;
    background: var(--active);
    color: var(--acttext);
    padding: 3px 4px 3px 8px;
    font-size: 12px;
    font-weight: bold;
    gap: 4px;
    position: sticky;
    top: 0;
}

.dlg-title span { flex: 1; }

.dlg-close {
    width: 17px;
    height: 15px;
    background: var(--face);
    color: var(--text);
    border: 1.5px solid;
    border-color: var(--lt) var(--xdk) var(--xdk) var(--lt);
    font-size: 9px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dlg-close:active {
    border-color: var(--xdk) var(--lt) var(--lt) var(--xdk);
}

.dlg-body {
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dlg-about-body {
    text-align: center;
    gap: 6px;
    padding: 18px 24px;
}

.dlg-footer {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 8px 14px 10px;
    border-top: 1px solid var(--dk);
    position: sticky;
    bottom: 0;
    background: var(--face);
}

/* ── Win 3.1 form controls ────────────────────────────────── */
.win-fieldset {
    border: 2px solid;
    border-color: var(--dk) var(--lt) var(--lt) var(--dk);
    padding: 6px 10px 8px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.win-fieldset legend {
    padding: 0 4px;
    font-size: 12px;
}

.win-checks {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 0 2px;
}

.win-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    cursor: pointer;
}

/* ── Win 3.1 dialog button ────────────────────────────────── */
.win-btn-dlg {
    background: var(--face);
    border: 2px solid;
    border-color: var(--lt) var(--xdk) var(--xdk) var(--lt);
    padding: 4px 18px;
    font-size: 12px;
    font-family: inherit;
    cursor: pointer;
    min-width: 72px;
}

.win-btn-dlg:active {
    border-color: var(--xdk) var(--lt) var(--lt) var(--xdk);
    padding: 5px 17px 3px 19px;
}

.win-btn-dlg:focus-visible {
    outline: 1px dotted var(--text);
    outline-offset: -4px;
}

/* ── Deck chooser canvas ──────────────────────────────────── */
#deck-chooser {
    display: block;
    cursor: pointer;
    image-rendering: pixelated;
    max-width: 100%;
}

/* ── Mobile overrides ─────────────────────────────────────── */
@media (max-width: 480px) {
    .dialog { width: calc(100vw - 16px); min-width: unset; }
    .win-btn-dlg { padding: 6px 12px; font-size: 13px; }
}

@media (max-height: 400px) and (orientation: landscape) {
}