:root {
    /* Colors (SKIF Ecosystem) */
    --bg-main: #050505;
    --glass-bg: rgba(20, 20, 20, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #FFFFFF;
    --text-secondary: #8b949e;
    
    /* Vault Accent (Cyan) */
    --accent: #06B6D4;
    --accent-glow: rgba(6, 182, 212, 0.4);
    
    --surface: #161b22;
    --code-bg: #0d1117;
    --code-text: #a5d6ff;
    --danger: #FF3B30;
    
    --font-heading: 'Unbounded', sans-serif;
    --font-body: 'Inter', sans-serif;
    --ease: cubic-bezier(0.25, 1, 0.5, 1);
    
    --shadow: 0 20px 50px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; margin: 0; padding: 0; outline: none; }

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    overflow: hidden;
    transition: background 0.5s ease;
}

/* ФОН */
.ambient-bg { position: absolute; width: 100%; height: 100%; overflow: hidden; z-index: -1; }
.orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.3; transition: 1s ease; }
.orb-1 { top: -10%; left: -10%; width: 60vw; height: 60vw; background: radial-gradient(circle, var(--accent) 0%, transparent 60%); animation: float 20s infinite alternate; }
.orb-2 { bottom: -10%; right: -10%; width: 50vw; height: 50vw; background: radial-gradient(circle, #3B82F6 0%, transparent 60%); animation: float 25s infinite alternate-reverse; }
.orb-3 { top: 40%; left: 40%; width: 40vw; height: 40vw; background: radial-gradient(circle, #6366f1 0%, transparent 60%); animation: float 30s infinite alternate; opacity: 0.2; }
@keyframes float { 0% { transform: translate(0,0); } 100% { transform: translate(30px, 30px); } }

/* GLASS UTILS */
.glass {
    background: var(--glass-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border); box-shadow: var(--shadow);
}

/* LOCK SCREEN */
.lock-screen {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--bg-main); z-index: 9999;
    display: flex; justify-content: center; align-items: center;
    opacity: 0; pointer-events: none; transition: 0.5s var(--ease);
}
body.locked .lock-screen { opacity: 1; pointer-events: all; }
body.locked .app-layout { filter: blur(30px) scale(0.95); opacity: 0; }

.lock-card {
    width: 360px; padding: 40px; border-radius: 32px; text-align: center;
    display: flex; flex-direction: column; align-items: center;
}
.lock-icon-box {
    width: 70px; height: 70px; background: var(--surface); border-radius: 20px;
    display: flex; align-items: center; justify-content: center;
    font-size: 30px; color: var(--accent); margin-bottom: 20px;
    box-shadow: 0 0 30px rgba(0,0,0,0.3); border: 1px solid var(--glass-border);
}
.lock-card h2 { font-family: var(--font-heading); font-weight: 700; font-size: 24px; margin-bottom: 8px; }
.lock-card p { color: var(--text-secondary); margin-bottom: 30px; font-size: 14px; }

.lock-input-wrapper { position: relative; width: 100%; margin-bottom: 20px; }
.lock-input-wrapper input {
    width: 100%; background: rgba(0,0,0,0.3); border: 1px solid var(--glass-border);
    padding: 16px; border-radius: 16px; color: var(--text-primary);
    text-align: center; font-size: 18px; letter-spacing: 4px; transition: 0.3s;
}
.lock-input-wrapper input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow); }
.btn-unlock {
    position: absolute; right: 6px; top: 6px; bottom: 6px; width: 44px;
    border: none; border-radius: 12px; background: var(--accent); color: black;
    cursor: pointer; transition: 0.2s; font-size: 16px;
}
.btn-unlock:hover { transform: scale(1.05); filter: brightness(1.1); }
.btn-reset { background: none; border: none; color: var(--text-secondary); font-size: 12px; cursor: pointer; }
.btn-reset:hover { color: var(--danger); }

/* LAYOUT */
.app-layout {
    display: flex; height: 100vh; padding: 20px; gap: 20px;
    transition: 0.5s var(--ease);
}

/* SIDEBAR */
.sidebar {
    width: 280px; border-radius: 24px; display: flex; flex-direction: column; padding: 24px; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 30px; padding: 0 8px; }
.logo-mark {
    width: 36px; height: 36px; background: linear-gradient(135deg, var(--accent), #3B82F6);
    border-radius: 10px; display: flex; align-items: center; justify-content: center;
    color: 2563EB; font-size: 18px; box-shadow: 0 0 15px var(--accent-glow);
}
.logo-text { font-family: var(--font-heading); font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }
.logo-text span { color: var(--accent); }

.nav-wrapper { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.nav-header {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--text-secondary);
    margin-bottom: 12px; padding: 0 8px; letter-spacing: 0.05em;
}
.icon-btn-mini { background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 14px; }
.icon-btn-mini:hover { color: var(--text-primary); }

/* TREE */
.category-tree { flex: 1; }
ul { list-style: none; padding: 0; margin: 0; }
ul.nested-list { margin-left: 12px; border-left: 1px solid var(--glass-border); padding-left: 8px; display: none; }
ul.nested-list.open { display: block; }

.cat-item {
    display: flex; align-items: center; padding: 10px 12px; margin-bottom: 4px;
    border-radius: 12px; cursor: pointer; color: var(--text-secondary); font-weight: 500; font-size: 14px;
    transition: 0.2s; position: relative;
}
.cat-item:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.cat-item.active { background: rgba(255,255,255,0.1); color: var(--text-primary); font-weight: 600; border: 1px solid var(--glass-border); }

.cat-icon-box { width: 24px; text-align: center; margin-right: 8px; display: flex; align-items: center; justify-content: center; }
.cat-item.active .cat-icon-box { color: var(--accent); }

.cat-arrow { font-size: 10px; margin-left: auto; transition: 0.2s; opacity: 0.5; margin-right: 24px; }
.cat-arrow.rotated { transform: rotate(90deg); }

.btn-edit-cat {
    position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
    width: 24px; height: 24px; border: none; background: transparent; border-radius: 6px;
    color: var(--text-secondary); cursor: pointer; display: none; align-items: center; justify-content: center; font-size: 12px;
}
.cat-item:hover .btn-edit-cat { display: flex; }
.btn-edit-cat:hover { background: var(--bg-main); color: var(--text-primary); }

.sidebar-footer { display: flex; gap: 10px; margin-top: 16px; }
.btn-sidebar-main {
    flex: 1; background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); border-radius: 14px; height: 44px;
    color: var(--text-primary); font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px;
    transition: 0.2s;
}
.btn-sidebar-icon {
    width: 44px; height: 44px; background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); border-radius: 14px;
    color: var(--text-secondary); cursor: pointer; transition: 0.2s;
}

.btn-sidebar-icon:hover { background: rgba(255,255,255,0.1); border-color: #FF3B30; color: #FF3B30; }

.btn-sidebar-main:hover { background: rgba(255,255,255,0.1); border-color: var(--accent); color: var(--accent); }

/* MAIN CONTENT */
.main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.header {
    height: 72px; margin-bottom: 20px; border-radius: 20px; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; z-index: 10;
}

.header-left { display: flex; align-items: center; gap: 16px; width: 100%; max-width: 500px; }
.back-btn {
    width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
    border-radius: 12px; background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border);
    color: var(--text-secondary); transition: 0.2s; text-decoration: none;
}
.back-btn:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }

.search-wrapper { position: relative; width: 100%; }
.search-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); }
#searchInput {
    width: 100%; height: 44px; padding: 0 16px 0 46px; border-radius: 14px; border: none;
    background: rgba(0,0,0,0.2); border: 1px solid var(--glass-border);
    color: var(--text-primary); font-size: 14px; transition: 0.2s;
}
#searchInput:focus { background: rgba(0,0,0,0.4); border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }

.header-actions { display: flex; gap: 10px; align-items: center; }
.action-btn {
    width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--glass-border); background: transparent;
    color: var(--text-secondary); cursor: pointer; font-size: 16px; transition: 0.2s;
}
.action-btn:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.divider { width: 1px; height: 24px; background: var(--glass-border); margin: 0 4px; }

.btn-primary {
    padding: 0 24px; height: 44px; background: var(--accent); color: black; border: none;
    border-radius: 14px; font-weight: 700; cursor: pointer; display: flex; align-items: center; gap: 8px;
    box-shadow: 0 0 20px var(--accent-glow); transition: 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.1); }

/* GRID */
.scroll-container { flex: 1; overflow-y: auto; padding: 10px 10px 40px 10px; }
.cards-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px;
}

.card {
    background: rgba(20, 20, 20, 0.75); border: 1px solid var(--glass-border); border-radius: 20px;
    padding: 24px; display: flex; flex-direction: column; position: relative;
    transition: 0.3s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 10px 30px rgba(0,0,0,0.3); border-color: var(--text-secondary); }

.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.card-title { font-size: 16px; font-weight: 700; color: var(--text-primary); }
.card-actions { display: flex; gap: 8px; opacity: 0; transition: 0.2s; }
.card:hover .card-actions { opacity: 1; }

.card-btn {
    width: 32px; height: 32px; border-radius: 10px; border: none; background: rgba(255,255,255,0.05);
    color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.card-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.1); }
.card-btn.del:hover { color: var(--danger); background: rgba(255, 59, 48, 0.1); }

.code-wrapper {
    background: var(--code-bg); border-radius: 14px; padding: 16px;
    font-family: 'JetBrains Mono', 'Menlo', monospace; font-size: 13px; color: var(--code-text);
    line-height: 1.5; cursor: pointer; border: 1px solid var(--glass-border); transition: 0.2s;
    white-space: pre-wrap; word-break: break-all; position: relative;
}
.code-wrapper:hover { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.copy-badge {
    position: absolute; top: 10px; right: 10px; font-size: 10px; font-weight: 700; text-transform: uppercase;
    background: var(--accent); color: black; padding: 4px 8px; border-radius: 6px; opacity: 0; pointer-events: none;
    transition: 0.2s; transform: translateY(5px);
}
.code-wrapper:hover .copy-badge { opacity: 1; transform: translateY(0); }

/* MODALS */
.overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(10px); z-index: 1000;
    display: none; justify-content: center; align-items: center;
}
.overlay.active { display: flex; animation: fadeIn 0.3s forwards; }

.modal {
    width: 440px; border-radius: 24px; padding: 32px; transform: scale(0.9); opacity: 0;
    transition: 0.3s var(--ease); background: #121212; border: 1px solid var(--glass-border);
    box-shadow: 0 20px 60px rgba(0,0,0,0.8);
}
.overlay.active .modal { transform: scale(1); opacity: 1; }
.modal.large { width: 640px; }

.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.modal-header h3 { font-family: var(--font-heading); font-size: 20px; font-weight: 700; margin: 0; }
.close-btn { background: none; border: none; color: var(--text-secondary); font-size: 20px; cursor: pointer; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; text-transform: uppercase; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 14px; border-radius: 12px; border: 1px solid var(--glass-border);
    background: rgba(255,255,255,0.05); color: var(--text-primary); font-family: inherit; font-size: 15px;
    transition: 0.2s;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.form-group select { appearance: none; cursor: pointer; }
.form-group select option { background: #1C1C1E; }

.modal-footer { display: flex; justify-content: flex-end; gap: 12px; margin-top: 30px; }
.btn-text { background: none; border: none; color: var(--text-secondary); font-weight: 600; cursor: pointer; }
.btn-text:hover { color: var(--text-primary); }
.btn-text.delete:hover { color: var(--danger); }
.spacer { flex: 1; }

.toast {
    position: fixed; bottom: 40px; left: 50%; transform: translate(-50%, 50px);
    background: var(--accent); color: black; padding: 12px 24px; border-radius: 50px;
    box-shadow: 0 10px 30px var(--accent-glow); display: flex; align-items: center; gap: 10px;
    font-weight: 700; opacity: 0; pointer-events: none; transition: 0.4s var(--ease); z-index: 2000;
}
.toast.active { transform: translate(-50%, 0); opacity: 1; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* TABS */
.tab-switcher {
    display: flex; gap: 4px; background: rgba(0,0,0,0.3); padding: 4px; border-radius: 12px; margin-bottom: 12px; border: 1px solid var(--glass-border);
}
.tab-btn {
    flex: 1; padding: 8px; border: none; background: transparent; color: var(--text-secondary);
    border-radius: 8px; font-size: 13px; font-weight: 600; cursor: pointer; transition: 0.2s;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
    background: var(--surface); color: var(--accent); box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.tab-content { display: none; animation: fadeIn 0.2s; }
.tab-content.active { display: block; }

/* SVG MASKING (Чтобы красить SVG в CSS) */
.custom-svg-icon {
    width: 18px; height: 18px;
    background-color: currentColor; /* Цвет текста родителя */
    -webkit-mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
    opacity: 0.8;
}
.cat-item.active .custom-svg-icon { background-color: var(--accent); opacity: 1; }

/* Картинка (если PNG) */
.custom-img-icon {
    width: 18px; height: 18px; object-fit: contain; opacity: 0.8;
}
.cat-item.active .custom-img-icon { opacity: 1; }