/* =====================================================
   NUR ENERGY — Главная таблица стилей
   ===================================================== */

:root {
    --primary: #1597d8;
    --primary-dark: #0c6fae;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    --dark: #0f172a;
    --dark-card: #1e293b;
    --dark-border: #334155;
    --text-muted: #94a3b8;
    --gradient: linear-gradient(135deg, #1597d8 0%, #06b6d4 100%);
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    min-height: 100vh;
}

/* =====================================================
   NAVBAR
   ===================================================== */
#mainNav {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--dark-border);
    padding: 12px 0;
}
#mainNav .navbar-brand { font-size: 1.3rem; color: #fff; }
#mainNav .nav-link { color: #94a3b8; transition: color .2s; font-size: .9rem; }
#mainNav .nav-link:hover { color: #fff; }
#mainNav .btn-primary { background: var(--gradient); border: none; font-size: .85rem; border-radius: 8px; }

/* =====================================================
   HERO
   ===================================================== */
.hero {
    background: var(--gradient);
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-title { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; color: #fff; }
.hero-sub { font-size: 1.1rem; color: rgba(255,255,255,.8); max-width: 600px; }
.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,.15);
    border: 1px solid rgba(255,255,255,.3);
    color: #fff;
    border-radius: 20px;
    padding: 4px 14px;
    font-size: .8rem;
    margin-bottom: 16px;
}

/* =====================================================
   CARDS
   ===================================================== */
.card-dark {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 16px;
    transition: transform .2s, box-shadow .2s;
}
.card-dark:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,.4); }

.section-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 8px;
}
.section-sub { color: var(--text-muted); max-width: 560px; margin: 0 auto 48px; }

/* =====================================================
   ПАКЕТЫ
   ===================================================== */
.package-card {
    background: var(--dark-card);
    border: 2px solid var(--dark-border);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    transition: all .25s;
    position: relative;
    overflow: hidden;
}
.package-card.featured {
    border-color: var(--primary);
    background: linear-gradient(145deg, #1e293b, #1a1a3e);
}
.package-card.featured::after {
    content: 'Популярный';
    position: absolute; top: 16px; right: -28px;
    background: var(--primary); color: #fff;
    font-size: .7rem; padding: 4px 32px;
    transform: rotate(45deg);
}
.package-card:hover { border-color: var(--primary); transform: translateY(-6px); }
.package-cv { font-size: 2.5rem; font-weight: 800; color: var(--secondary); }
.package-name { font-size: 1.2rem; font-weight: 600; color: #f1f5f9; }
.package-price { color: var(--text-muted); font-size: .95rem; }
.package-products { font-size: .85rem; color: var(--success); }

/* =====================================================
   СТАТУСЫ
   ===================================================== */
.status-row {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 10px;
    transition: border-color .2s;
}
.status-row:hover { border-color: var(--primary); }
.status-badge {
    width: 44px; height: 44px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.status-cv { font-size: .85rem; color: var(--text-muted); }
.status-name { font-weight: 600; color: #f1f5f9; }

/* =====================================================
   КАБИНЕТ
   ===================================================== */
.cabinet-sidebar {
    background: var(--dark-card);
    border-right: 1px solid var(--dark-border);
    min-height: calc(100vh - 70px);
    padding: 24px 0;
}

/* Мобильная навигация — navbar только лого + гамбургер */
@media (max-width: 991px) {
    #mainNav { padding: 6px 0; }
    .cabinet-sidebar { display: none !important; } /* offcanvas заменяет на мобильных */

    /* Контент кабинета на всю ширину */
    .col-lg-10.col-md-9 {
        width: 100% !important;
        max-width: 100% !important;
        flex: 0 0 100% !important;
        padding: 16px !important;
    }
}
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: .9rem;
    transition: all .2s;
    border-left: 3px solid transparent;
}
.sidebar-link:hover, .sidebar-link.active {
    color: #fff;
    background: rgba(21,151,216,.1);
    border-left-color: var(--primary);
}
.sidebar-link i { font-size: 1.1rem; width: 20px; text-align: center; }

.stat-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 16px;
    padding: 24px;
}
.stat-value { font-size: 1.8rem; font-weight: 700; color: #f1f5f9; }
.stat-label { color: var(--text-muted); font-size: .85rem; margin-top: 4px; }
.stat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
}

/* =====================================================
   БИНАРНОЕ ДЕРЕВО
   ===================================================== */
.binary-tree-wrap {
    overflow-x: auto;
    padding: 20px;
    background: var(--dark-card);
    border-radius: 16px;
    border: 1px solid var(--dark-border);
}
.tree-node {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
}
.tree-node-box {
    background: #1e293b;
    border: 2px solid var(--dark-border);
    border-radius: 12px;
    padding: 10px 14px;
    text-align: center;
    min-width: 100px;
    cursor: pointer;
    transition: border-color .2s;
    font-size: .8rem;
    position: relative;
}
.tree-node-box:hover { border-color: var(--primary); }
.tree-node-box.me { border-color: var(--primary); background: rgba(21,151,216,.15); }
.tree-node-box .node-name { font-weight: 600; color: #f1f5f9; white-space: nowrap; }
.tree-node-box .node-cv { color: var(--secondary); font-size: .75rem; }
.tree-node-box .node-status { font-size: .7rem; color: var(--text-muted); }
.tree-connector {
    display: flex;
    justify-content: space-between;
    position: relative;
}
.tree-branch {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}
.tree-line-v {
    width: 2px;
    height: 30px;
    background: var(--dark-border);
}
.tree-line-h {
    height: 2px;
    background: var(--dark-border);
    flex: 1;
}
.tree-children { display: flex; gap: 20px; }

/* =====================================================
   ФОРМЫ
   ===================================================== */
.form-box {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 20px;
    padding: 40px;
}
@media (max-width: 576px) { .form-box { padding: 24px 16px; } }

.form-control,
.form-select,
.form-control-sm,
.form-select-sm {
    background: #0f172a;
    border: 1px solid var(--dark-border);
    color: #e2e8f0;
    border-radius: 10px;
    padding: 10px 14px;
}
.form-select,
.form-select-sm {
    /* стрелка для тёмного фона */
    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='%2394a3b8' 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 .75rem center;
    background-size: 16px 12px;
}
.form-select-sm {
    padding: 5px 32px 5px 10px;
    border-radius: 8px;
    font-size: .85rem;
}
.form-control:focus,
.form-select:focus,
.form-control-sm:focus,
.form-select-sm:focus {
    background: #0f172a;
    border-color: var(--primary);
    color: #e2e8f0;
    box-shadow: 0 0 0 3px rgba(21,151,216,.2);
}
/* Disabled / readonly поля */
.form-control:disabled,
.form-control[readonly],
.form-select:disabled {
    background: #1e293b;
    color: #64748b;
    border-color: var(--dark-border);
    opacity: 1;
}
/* Автозаполнение браузера */
.form-control:-webkit-autofill,
.form-control:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 1000px #0f172a inset;
    -webkit-text-fill-color: #e2e8f0;
    caret-color: #e2e8f0;
}
/* Опции в select */
.form-select option,
.form-select-sm option {
    background: #1e293b;
    color: #e2e8f0;
}
.form-label { font-size: .85rem; color: var(--text-muted); margin-bottom: 6px; }

.btn-primary {
    background: var(--gradient);
    border: none;
    border-radius: 10px;
    padding: 10px 24px;
    font-weight: 500;
    transition: opacity .2s, transform .1s;
}
.btn-primary:hover { opacity: .9; transform: translateY(-1px); background: var(--gradient); }
.btn-outline-primary {
    border-color: var(--primary); color: var(--primary); border-radius: 10px;
}
.btn-outline-primary:hover { background: var(--primary); color: #fff; }

/* =====================================================
   ТАБЛИЦЫ
   ===================================================== */
.table-dark {
    --bs-table-bg: var(--dark-card);
    --bs-table-border-color: var(--dark-border);
    --bs-table-striped-bg: rgba(255,255,255,.03);
    --bs-table-hover-bg: rgba(21,151,216,.08);
    border-radius: 12px;
    overflow: hidden;
}
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); }

/* =====================================================
   BADGES / PILLS
   ===================================================== */
.bonus-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(16,185,129,.15);
    color: var(--success);
    border: 1px solid rgba(16,185,129,.3);
    border-radius: 20px;
    padding: 3px 10px;
    font-size: .78rem;
    font-weight: 500;
}
.wallet-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 16px;
    padding: 28px;
    transition: border-color .2s;
}
.wallet-card:hover { border-color: var(--primary); }
.wallet-balance { font-size: 2rem; font-weight: 800; }

/* =====================================================
   FOOTER
   ===================================================== */
.site-footer {
    background: #080e1a;
    border-top: 1px solid var(--dark-border);
    padding: 48px 0 24px;
}
.footer-link { color: var(--text-muted); text-decoration: none; display: block; margin-bottom: 6px; transition: color .2s; }
.footer-link:hover { color: #fff; }

/* =====================================================
   UTILS
   ===================================================== */

/* Переопределяем Bootstrap-переменные для тёмной темы */
:root {
    --bs-secondary-color: #94a3b8;
    --bs-body-color: #e2e8f0;
    --bs-body-bg: #0f172a;
    --bs-border-color: #334155;
}

/* Bootstrap text-muted по умолчанию почти чёрный — принудительно светлый */
.text-muted { color: #94a3b8 !important; }

.text-cv { color: var(--secondary); }
.text-kgs { color: var(--accent); }
.text-bonus { color: var(--success); }
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-py { padding: 80px 0; }

/* =====================================================
   АДАПТИВ
   ===================================================== */
@media (max-width: 768px) {
    .hero { padding: 60px 0 50px; }
    .section-py { padding: 50px 0; }
    .package-card { padding: 24px 16px; }
    .stat-value { font-size: 1.4rem; }
    .form-box { padding: 24px 20px; }
    .wallet-balance { font-size: 1.5rem; }
}

/* Скроллбар */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--dark-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }