/* ============================================================
   uToolkit — main.css
   Общие стили публичной части
   ============================================================ */

:root,
:root[data-theme="dark"] {
    color-scheme: dark;
    --bg:             #1a1a1a;
    --card:           #2d2d2d;
    --card2:          #242424;
    --text:           #e0e0e0;
    --text-sec:       #aaa;
    --primary:        #7c8eff;
    --primary-hover:  #6a7ae0;
    --green:          #48bb78;
    --green-hover:    #38a169;
    --border:         #444;
    --success:        #68d391;
    --success-bg:     rgba(104,211,145,0.18);
    --error:          #f56565;
    --error-bg:       rgba(245,101,101,0.15);
    --warning:        #ecc94b;
    --warning-bg:     rgba(236,201,75,0.18);
    --warning-strong:    #ed8936;
    --warning-strong-bg: rgba(237,137,54,0.18);
    --info:           #63b3ed;
    --info-bg:        rgba(99,179,237,0.18);
    --purple:         #b79bf7;
    --purple-bg:      rgba(183,121,247,0.18);
    --teal:           #81e6d9;
    --teal-bg:        rgba(129,230,217,0.18);
    --input-bg:       #111;
    --header-h:       58px;
    --shadow:         rgba(0,0,0,0.30);
    --dropdown-shadow: rgba(0,0,0,0.40);
}

:root[data-theme="light"] {
    color-scheme: light;
    --bg:             #e7ecf6;
    --card:           #ffffff;
    --card2:          #eef1f8;
    --text:           #162033;
    --text-sec:       #5f6b7a;
    --primary:        #4f63d7;
    --primary-hover:  #4154bf;
    --green:          #2f9e63;
    --green-hover:    #25824f;
    --border:         #c3cee0;
    --success:        #248b53;
    --success-bg:     rgba(36,139,83,0.14);
    --error:          #d83c3c;
    --error-bg:       rgba(216,60,60,0.13);
    --warning:        #a15c07;
    --warning-bg:     rgba(184,111,24,0.16);
    --warning-strong:    #9a3412;
    --warning-strong-bg: rgba(154,52,18,0.14);
    --info:           #1f6fb2;
    --info-bg:        rgba(43,108,176,0.14);
    --purple:         #6b46c1;
    --purple-bg:      rgba(107,70,193,0.14);
    --teal:           #0d7a70;
    --teal-bg:        rgba(13,122,112,0.13);
    --input-bg:       #eef1f8;
    --header-h:       58px;
    --shadow:         rgba(20,31,52,0.08);
    --dropdown-shadow: rgba(20,31,52,0.14);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================================
   ШАПКА
   ============================================================ */
.site-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    height: var(--header-h);
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 260;
}
.header-left {
    display: flex;
    align-items: center;
    gap: 6px;
}
.logo {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
    margin-right: 14px;
    white-space: nowrap;
}
.logo span { color: var(--text-sec); font-weight: 400; font-size: 0.85rem; }

/* Навигация — базовое поведение (десктоп: обычная строка) */
.header-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Кнопка-гамбургер — скрыта на десктопе */
.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card2);
    color: var(--text);
    font-size: 1.15rem;
    cursor: pointer;
    flex: 0 0 auto;
    padding: 0;
}
.mobile-menu-btn:hover { border-color: var(--primary); color: var(--primary); }

/* Кнопка закрытия внутри выезжающей панели — скрыта на десктопе */
.nav-panel-close {
    display: none;
}

/* Затемнение фона при открытой мобильной панели */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 250;
}
.nav-overlay.open { display: block; }

/* Навигация — выпадающие группы */
.nav-group { position: relative; }
.nav-group-btn {
    background: none;
    border: none;
    color: var(--text-sec);
    font-size: 0.88rem;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s;
    white-space: nowrap;
}
.nav-group-btn::after { content: '▾'; font-size: 0.7rem; opacity: 0.6; }
.nav-group-btn:hover,
.nav-group-btn.open { color: var(--text); background: var(--card2); }

.nav-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 6px;
    min-width: 210px;
    max-width: calc(100vw - 24px);
    box-shadow: 0 8px 24px var(--dropdown-shadow);
    z-index: 200;
}
.nav-dropdown.open { display: block; }
.nav-dropdown a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 7px;
    text-decoration: none;
    color: var(--text-sec);
    font-size: 0.88rem;
    transition: all 0.15s;
    white-space: nowrap;
}
.nav-dropdown a:hover { background: var(--card2); color: var(--text); }
.nav-dropdown a.active { color: var(--primary); background: rgba(124,142,255,0.1); }
.nav-dropdown a.disabled {
    opacity: 0.4;
    pointer-events: none;
    cursor: default;
}
.nav-dropdown .soon-badge {
    margin-left: auto;
    font-size: 0.65rem;
    background: rgba(170,170,170,0.15);
    color: var(--text-sec);
    padding: 1px 6px;
    border-radius: 8px;
}

/* ============================================================
   КОНТЕНТ
   ============================================================ */
.page-content {
    flex: 1;
    padding: 32px 28px 60px;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}
.page-title, h1.page-title {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 6px;
    margin-top: 0;
}
.page-subtitle {
    color: var(--text-sec);
    font-size: 0.92rem;
    margin-bottom: 28px;
}

/* ============================================================
   ПАНЕЛИ
   ============================================================ */
.panel {
    background: var(--card);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 12px var(--shadow);
}
.panel-title {
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-sec);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.workspace {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
@media (max-width: 800px) { .workspace { grid-template-columns: 1fr; } }

/* ============================================================
   ФОРМЫ
   ============================================================ */
textarea, input[type="text"], input[type="number"] {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 13px 15px;
    font-family: inherit;
    font-size: 14px;
    background: var(--input-bg);
    color: var(--text);
    transition: border-color 0.2s;
}
textarea { resize: vertical; min-height: 280px; line-height: 1.6; }
textarea.mono { font-family: 'Consolas', 'Monaco', monospace; }
textarea:focus,
input:focus { outline: none; border-color: var(--primary); }

.controls {
    margin-top: 12px;
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

button {
    padding: 11px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.btn-primary { background: var(--primary); color: white; flex: 1; justify-content: center; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); transform: translateY(-1px); }
.btn-green { background: var(--green); color: white; flex: 1; justify-content: center; }
.btn-green:hover:not(:disabled) { background: var(--green-hover); transform: translateY(-1px); }
.btn-secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-secondary:hover:not(:disabled) { border-color: var(--text-sec); }
button:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

.theme-toggle {
    flex: 0 0 auto;
    padding: 6px 11px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--card2);
    color: var(--text-sec);
    font-size: 0.84rem;
    line-height: 1;
    white-space: nowrap;
}
.theme-toggle:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(124,142,255,0.10);
}
.theme-toggle-icon {
    font-size: 0.95rem;
    line-height: 1;
}
.theme-toggle-text {
    line-height: 1;
}

.btn-loader {
    width: 15px; height: 15px;
    border: 2px solid rgba(255,255,255,0.4);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

.stats { margin-top: 8px; font-size: 0.82rem; color: var(--text-sec); min-height: 18px; }
.stats b { color: var(--success); }
.stats .err { color: var(--error); }

/* ============================================================
   ФУТЕР
   ============================================================ */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 20px 28px;
    text-align: center;
    color: var(--text-sec);
    font-size: 0.82rem;
}

/* ============================================================
   TOAST
   ============================================================ */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--primary);
    color: white;
    padding: 11px 20px;
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: 1000;
    font-size: 0.9rem;
}
.toast.show { opacity: 1; }

/* ============================================================
   АДАПТИВ — мобильное меню (гамбургер + выезжающая панель слева)
   ============================================================ */
@media (max-width: 700px) {
    .site-header {
        padding: 8px 16px;
        height: auto;
        min-height: var(--header-h);
        flex-wrap: wrap;
        row-gap: 6px;
    }
    .page-content { padding: 20px 16px 40px; }
    .theme-toggle-text { display: none; }
    .theme-toggle { padding: 7px 9px; }

    /* Ужимаем текстовые лейблы в правом блоке шапки, оставляем иконки */
    .contact-link .btn-label,
    .private-link .btn-label { display: none; }
    .contact-link, .private-link { padding: 7px 9px; }

    .mobile-menu-btn { display: flex; }

    /* Панель навигации превращается в выезжающую слева */
    .header-nav {
        position: fixed;
        top: 0;
        left: -85%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        height: 100dvh;
        background: var(--card);
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: 64px 14px 24px;
        overflow-y: auto;
        box-shadow: 8px 0 24px var(--dropdown-shadow);
        transition: left 0.25s ease;
        z-index: 300;
    }
    .header-nav.open { left: 0; }

    .nav-panel-close {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 12px;
        right: 12px;
        width: 32px;
        height: 32px;
        border: 1px solid var(--border);
        border-radius: 8px;
        background: var(--card2);
        color: var(--text-sec);
        font-size: 1rem;
        cursor: pointer;
    }
    .nav-panel-close:hover { color: var(--primary); border-color: var(--primary); }

    .nav-group { width: 100%; }
    .nav-group-btn {
        width: 100%;
        justify-content: space-between;
        padding: 12px 14px;
        font-size: 0.98rem;
    }

    /* Внутри панели вложенные списки инструментов — аккордеоном, не абсолютным дропдауном */
    .nav-dropdown {
        position: static;
        display: none;
        width: 100%;
        min-width: 0;
        max-width: none;
        margin: 2px 0 6px;
        box-shadow: none;
        border: none;
        background: var(--card2);
    }
    .nav-dropdown.open { display: block; }
}

/* Ссылка на приватный раздел (только для своих IP) */
.private-link {
    text-decoration: none;
    color: var(--text-sec);
    font-size: 0.82rem;
    padding: 5px 12px;
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: all 0.2s;
    white-space: nowrap;
}
.private-link:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(124,142,255,0.08);
}

/* ============================================================
   ИНФОБЛОК ИНСТРУМЕНТА (описание, FAQ, оглавление, перелинковка)
   Общий блок, вынесенный из локальных <style> отдельных tools/*.php
   ============================================================ */
.info-section {
    background: var(--card);
    border-radius: 12px;
    padding: 28px;
    margin-top: 32px;
}
.info-section h2 { color: var(--primary); margin: 0 0 12px; font-size: 1.3rem; }
.info-section h2:not(:first-child) { margin-top: 24px; }
.info-section h3 { color: var(--text); font-size: 0.95rem; margin: 0 0 8px; font-weight: 600; }
.info-section p, .info-section li { line-height: 1.8; color: var(--text-sec); }
.info-section ul, .info-section ol { padding-left: 20px; margin: 10px 0; }
.info-section strong { color: var(--text); }

.info-toc {
    background: var(--card2);
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 24px;
    border-left: 3px solid var(--primary);
}
.info-toc-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-sec);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}
.info-toc a { display: block; padding: 3px 0; color: var(--primary); text-decoration: none; font-size: 0.9rem; transition: opacity 0.2s; }
.info-toc a:hover { opacity: 0.7; }

.related-tools {
    background: var(--card2);
    border-radius: 8px;
    padding: 16px 20px;
    margin-top: 24px;
}
.related-tools-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-sec);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}
.related-tools-list { display: flex; flex-wrap: wrap; gap: 10px; }
.related-tools-list a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    text-decoration: none;
    font-size: 0.88rem;
    transition: all 0.2s;
}
.related-tools-list a:hover { border-color: var(--primary); color: var(--primary); }

.use-cases { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-top: 12px; }
.use-case-item { background: var(--input-bg); border-radius: 8px; padding: 14px; font-size: 0.87rem; color: var(--text-sec); line-height: 1.55; }
.use-case-item strong { display: block; color: var(--text); margin-bottom: 4px; font-size: 0.9rem; }