/* Custos_v1 スタイルシート (PySide6 QSS忠実再現版) */

:root {
    /* デフォルト：ダークテーマ */
    --bg: #2b2b2e;
    --fg: #fdfdfd;
    --input-bg: #1b1b1c;
    --border: #444446;
    --accent: #08854c;
    --btn-encrypt: #3a7ebf;
    --btn-encrypt-hover: #2a5f8f;
    --btn-decrypt: #2CC985;
    --btn-decrypt-hover: #229A65;
    --btn-clear: #e74c3c;
    --btn-clear-hover: #c0392b;
    --text-muted: #8e8e93;
    --panel-bg: #3a3a3c;
    --dropdown-bg: #1b1b1c;
    --dropdown-hover: #444446;
    --tooltip-bg: #1e1e1e;
    --tooltip-fg: #ffffff;
    --tooltip-border: #555555;
    --modal-bg: #2b2b2e;
    --modal-btn-bg: #3a3a3c;
}

[data-theme="light"] {
    --bg: #e6e4df;
    --fg: #1c1c1e;
    --input-bg: #f7f6ed;
    --border: #c7c7cc;
    --accent: #08854c;
    --btn-encrypt: #3a7ebf;
    --btn-encrypt-hover: #2a5f8f;
    --btn-decrypt: #2CC985;
    --btn-decrypt-hover: #229A65;
    --btn-clear: #e74c3c;
    --btn-clear-hover: #c0392b;
    --text-muted: #48484a;
    --panel-bg: #d1d1d6;
    --dropdown-bg: #f7f6ed;
    --dropdown-hover: #e6e4df;
    --tooltip-bg: #ffffff;
    --tooltip-fg: #1e1e1e;
    --tooltip-border: #555555;
    --modal-bg: #e6e4df;
    --modal-btn-bg: #d1d1d6;
}

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

body {
    background-color: var(--bg);
    color: var(--fg);
    font-family: "Noto Sans JP", "Noto Sans CJK JP", "Meiryo", sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    transition: background-color 0.25s ease, color 0.25s ease;
}

.app-container {
    width: 100%;
    max-width: 760px;
    padding: 15px 40px 30px 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* --- ヘッダー --- */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-title-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-icon {
    color: var(--accent);
    font-size: 28px;
}

.title-label {
    font-size: 24px;
    font-weight: bold;
    color: var(--accent);
}

.icon-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    font-size: 20px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.icon-btn:hover {
    background-color: var(--border);
    color: var(--accent);
}

/* --- 設定パネル --- */
.settings-frame {
    background-color: var(--panel-bg);
    border-radius: 10px;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.215, 0.61, 0.355, 1), opacity 0.3s ease, padding 0.3s ease;
    padding: 0 20px;
}

.settings-frame.open {
    max-height: 120px;
    opacity: 1;
    padding: 15px 20px;
}

.settings-layout {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 13px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.setting-label {
    color: var(--fg);
    font-weight: 500;
}

select {
    background-color: var(--input-bg);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    min-width: 110px;
    font-size: 13px;
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s;
}

select:hover, select:focus {
    border-color: var(--accent);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* --- 入力・出力エリア --- */
.area-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.area-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.muted-label {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: bold;
}

.action-btn {
    background-color: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.action-btn:hover {
    background-color: var(--input-bg);
    color: var(--accent);
    border-color: var(--accent);
}

.text-input {
    width: 100%;
    height: 200px;
    background-color: var(--input-bg);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    font-size: 14px;
    line-height: 1.5;
    font-family: inherit;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
}

.text-input:focus {
    border: 2px solid var(--accent);
    padding: 11px; /* ボーダー2pxに対応 */
}

.text-input.drag-over {
    border: 2px dashed var(--accent);
    background-color: var(--panel-bg);
}

/* --- アクションボタン群 --- */
.action-buttons-layout {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 5px 0;
}

.btn-primary {
    flex: 1;
    max-width: 220px;
    height: 45px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 14px;
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color 0.2s, opacity 0.2s;
}

.encrypt-btn {
    background-color: var(--btn-encrypt);
}

.encrypt-btn:hover:not(:disabled) {
    background-color: var(--btn-encrypt-hover);
}

.decrypt-btn {
    background-color: var(--btn-decrypt);
}

.decrypt-btn:hover:not(:disabled) {
    background-color: var(--btn-decrypt-hover);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* --- クリアボタン --- */
.clear-layout {
    display: flex;
    justify-content: center;
    margin-top: 5px;
}

.clear-btn {
    background-color: transparent;
    color: var(--btn-clear);
    border: 1px solid var(--btn-clear);
    border-radius: 8px;
    padding: 8px 24px;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.2s, color 0.2s;
}

.clear-btn:hover {
    background-color: var(--btn-clear);
    color: white;
}

/* --- トースト通知 --- */
.toast-notification {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background-color: #1a7a45;
    color: #ffffff;
    border-radius: 10px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    pointer-events: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 1000;
}

.toast-notification.show {
    opacity: 1;
    transform: translateY(0);
}

/* --- モーダルダイアログ --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-box {
    background-color: var(--modal-bg);
    color: var(--fg);
    border-radius: 10px;
    padding: 20px 24px;
    min-width: 320px;
    max-width: 440px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.modal-title {
    font-size: 16px;
    font-weight: bold;
}

.modal-message {
    font-size: 13px;
    line-height: 1.5;
    white-space: pre-line;
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 10px;
}

.modal-btn {
    background-color: var(--modal-btn-bg);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 20px;
    font-size: 13px;
    cursor: pointer;
    min-width: 72px;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.modal-btn:hover {
    background-color: var(--dropdown-hover);
    border-color: var(--accent);
    color: var(--accent);
}

.modal-btn.primary {
    border-color: var(--accent);
}