/* ==========================================================================
   I-Tec College Unified LMS - Modern Enterprise Responsive Theme v3.0
   Fixes:
   1. Sidebar Navbar: Crisp visible main icons, aligned text labels, visible submenu icons, dark slate theme without white background leaks or overlapping circles.
   2. Mobile Header & Toggle: Top header buttons show ONLY icons clearly on mobile view; Hamburger / Sidebar toggle button works 100% reliably on all screens.
   ========================================================================== */
:root {
    --admin-primary: #4f46e5;
    --admin-primary-dark: #3730a3;
    --admin-accent: #0ea5e9;
    --admin-sidebar: #0f172a;
    --admin-sidebar-sub: #131c31;
    --admin-sidebar-hover: #1e293b;
    --admin-bg: #f1f5f9;
}

body {
    background-color: var(--admin-bg) !important;
    color: #0f172a;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

#preloader {
    animation: adminFadeOut 0.25s ease 0.1s forwards !important;
    pointer-events: none !important;
}
@keyframes adminFadeOut {
    to { opacity: 0; visibility: hidden; display: none; }
}

/* ==========================================================================
   NAV HEADER & BRAND LOGO + ALWAYS-WORKING HAMBURGER TOGGLE
   ========================================================================== */
.nav-header {
    background-color: #0f172a !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
    z-index: 1055 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 0 14px !important;
}
.nav-header .brand-logo {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 0 !important;
    text-decoration: none !important;
}
.nav-header .brand-logo .logo-abbr {
    max-width: 38px !important;
    max-height: 38px !important;
    border-radius: 8px;
}
.nav-header .brand-title-text {
    color: #ffffff !important;
    font-weight: 800 !important;
    font-size: 17px !important;
    letter-spacing: 0.4px;
    white-space: nowrap;
}
.nav-header .brand-title-text span {
    color: #38bdf8 !important;
}
[data-sidebar-style="mini"] .nav-header .brand-title-text,
.menu-toggle .nav-header .brand-title-text {
    display: none !important;
}

/* Force .nav-control and .hamburger to NEVER be hidden by style.css mini rules */
.nav-header .nav-control,
[data-sidebar-style="mini"] .nav-control,
[data-sidebar-style="overlay"] .nav-control,
[data-sidebar-style="full"] .nav-control {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: relative !important;
    right: auto !important;
    top: auto !important;
    transform: none !important;
    width: 38px !important;
    height: 38px !important;
    border-radius: 8px !important;
    background: rgba(255, 255, 255, 0.1) !important;
    cursor: pointer !important;
    z-index: 1065 !important;
}
.nav-header .nav-control:hover {
    background: rgba(79, 70, 229, 0.85) !important;
}
.nav-header .hamburger,
[data-sidebar-style="mini"] .nav-header .hamburger {
    display: inline-block !important;
    width: 20px !important;
    height: 16px !important;
}
.nav-header .hamburger .line {
    background: #ffffff !important;
    display: block !important;
    height: 2px !important;
    margin: 4px 0 !important;
    border-radius: 2px !important;
    width: 20px !important;
    transition: all 0.25s ease !important;
}

/* Dedicated Mobile / Tablet Toggle Button in Header Left */
.lms-mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 9px;
    border: 1px solid #cbd5e1;
    background: #0f172a;
    color: #ffffff;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}
.lms-mobile-menu-btn:hover {
    background: #4f46e5;
    border-color: #4f46e5;
}

/* ==========================================================================
   HEADER QUICK ACTION BUTTONS (DESKTOP ICON+TEXT, MOBILE ICON-ONLY)
   ========================================================================== */
.header {
    background-color: #ffffff !important;
    box-shadow: 0 2px 14px rgba(15, 23, 42, 0.06) !important;
    z-index: 1045 !important;
}
.header .header-content {
    padding-left: 16px !important;
    padding-right: 16px !important;
}
.header-right {
    display: flex !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
    gap: 6px !important;
}
. header-right .nav-item {
    padding: 0 !important;
}
.lms-hdr-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px !important;
    height: 36px !important;
    padding: 0 11px !important;
    border-radius: 8px !important;
    font-size: 12.5px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    border: 1px solid transparent !important;
    cursor: pointer !important;
    position: relative !important;
    transition: all 0.18s ease !important;
    white-space: nowrap !important;
}
.lms-hdr-btn i {
    font-size: 18px !important;
    line-height: 1 !important;
}
.lms-hdr-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(15, 23, 42, 0.12);
}
.lms-hdr-search {
    background: #f1f5f9 !important;
    color: #334155 !important;
    border-color: #e2e8f0 !important;
}
.lms-hdr-search kbd {
    background: #ffffff;
    color: #475569;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 10px;
    margin-left: 4px;
}
.lms-btn-emerald { background: #ecfdf5 !important; color: #047857 !important; border-color: #a7f3d0 !important; }
.lms-btn-indigo  { background: #eef2ff !important; color: #4338ca !important; border-color: #c7d2fe !important; }
.lms-btn-cyan    { background: #f0f9ff !important; color: #0369a1 !important; border-color: #bae6fd !important; }
.lms-btn-purple  { background: #f5f3ff !important; color: #6d28d9 !important; border-color: #ddd6fe !important; }
.lms-btn-slate   { background: #f8fafc !important; color: #334155 !important; border-color: #cbd5e1 !important; }
.lms-btn-amber   { background: #fffbeb !important; color: #b45309 !important; border-color: #fde68a !important; }
.lms-btn-teal    { background: #f0fdfa !important; color: #0f766e !important; border-color: #99f6e4 !important; }
.lms-btn-dark    { background: #0f172a !important; color: #ffffff !important; border-color: #0f172a !important; }

.lms-hdr-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    padding: 1px 5px;
    border-radius: 10px;
    line-height: 1.2;
}

/* ==========================================================================
   SIDEBAR NAVIGATION (.deznav & .metismenu) — COMPLETE CLARITY & ALIGNMENT
   Overrides legacy white backgrounds & overlapping circle bullets in style.css
   ========================================================================== */
.deznav {
    background-color: #0f172a !important;
    box-shadow: 4px 0 24px rgba(15, 23, 42, 0.18) !important;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
}
.deznav .deznav-scroll {
    overflow-y: auto !important;
    overflow-x: hidden !important;
    scrollbar-width: thin;
    scrollbar-color: #334155 #0f172a;
}
.deznav .metismenu {
    padding-top: 6px !important;
    padding-bottom: 40px !important;
}
.deznav .metismenu .nav-label {
    color: #64748b !important;
    font-size: 11px !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.8px !important;
    padding: 12px 18px 6px !important;
    margin: 0 !important;
}

/* Override legacy white active li background in style.css */
.deznav .metismenu > li,
.deznav .metismenu > li.mm-active {
    background: transparent !important;
}

/* Main Menu Anchor Alignment */
.deznav .metismenu > li > a {
    display: flex !important;
    align-items: center !important;
    gap: 11px !important;
    padding: 10px 14px !important;
    margin: 2px 10px !important;
    border-radius: 9px !important;
    color: #e2e8f0 !important;
    font-size: 13.5px !important;
    font-weight: 500 !important;
    background: transparent !important;
    transition: all 0.18s ease !important;
    position: relative !important;
}

/* Main Menu Icons — Always Visible, Colored & Centered */
.deznav .metismenu > li > a > i {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 28px !important;
    height: 28px !important;
    min-width: 28px !important;
    border-radius: 7px !important;
    background: rgba(255, 255, 255, 0.07) !important;
    color: #38bdf8 !important;
    font-size: 17px !important;
    margin: 0 !important;
    padding: 0 !important;
    line-height: 1 !important;
}

.deznav .metismenu > li > a .nav-text {
    flex: 1 1 auto !important;
    margin: 0 !important;
    line-height: 1.3 !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    color: inherit !important;
}

.deznav .metismenu > li:hover > a,
.deznav .metismenu > li.mm-active > a {
    background: linear-gradient(135deg, #4f46e5 0%, #0284c7 100%) !important;
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35) !important;
}
.deznav .metismenu > li:hover > a > i,
.deznav .metismenu > li.mm-active > a > i {
    background: rgba(255, 255, 255, 0.2) !important;
    color: #ffffff !important;
}

.lms-menu-shortcut {
    font-size: 10px;
    padding: 1px 5px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.08);
    color: #94a3b8;
    margin-right: 16px;
    font-family: monospace;
}

/* Submenu Container & Items — Dark Slate Background, Crisp Visible Sub-Icons */
.deznav .metismenu ul {
    background-color: #131c31 !important;
    margin: 3px 10px 6px 10px !important;
    padding: 6px 0 !important;
    border-radius: 8px !important;
    border-left: 2px solid #38bdf8 !important;
}
.deznav .metismenu ul a {
    display: flex !important;
    align-items: center !important;
    gap: 9px !important;
    padding: 7px 12px 7px 14px !important;
    color: #cbd5e1 !important;
    font-size: 12.5px !important;
    font-weight: 500 !important;
    text-decoration: none !important;
    background: transparent !important;
    transition: all 0.15s ease !important;
}
/* Remove legacy circle bullet that overlapped submenu icons */
.deznav .metismenu ul a:before {
    display: none !important;
    content: none !important;
}
.deznav .metismenu ul a > i {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 20px !important;
    min-width: 20px !important;
    font-size: 15px !important;
    color: #38bdf8 !important;
    margin: 0 !important;
}
.deznav .metismenu ul a:hover,
.deznav .metismenu ul a.mm-active {
    background: rgba(56, 189, 248, 0.14) !important;
    color: #ffffff !important;
    padding-left: 17px !important;
}
.deznav .metismenu ul a:hover > i,
.deznav .metismenu ul a.mm-active > i {
    color: #ffffff !important;
}

/* Arrow chevron positioning */
.deznav .metismenu .has-arrow:after {
    right: 14px !important;
    border-color: #94a3b8 !important;
}
.deznav .metismenu > li:hover > .has-arrow:after,
.deznav .metismenu > li.mm-active > .has-arrow:after {
    border-color: #ffffff !important;
}

/* ==========================================================================
   MOBILE & TABLET RESPONSIVE SIDEBAR + ICON-ONLY HEADER BUTTONS
   ========================================================================== */
.lms-sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(2px);
    z-index: 1038;
}

@media (max-width: 1199.98px) {
    .lms-hdr-label {
        display: none !important;
    }
    .lms-hdr-btn {
        width: 36px !important;
        height: 36px !important;
        padding: 0 !important;
    }
    .lms-mobile-menu-btn {
        display: inline-flex !important;
    }
}

@media (max-width: 991.98px) {
    .nav-header {
        width: 72px !important;
    }
    .nav-header .brand-title-text {
        display: none !important;
    }
    .header {
        padding-left: 72px !important;
    }
    .content-body {
        margin-left: 0 !important;
        padding-top: 72px !important;
    }
    /* Off-canvas mobile sidebar drawer controlled by .menu-toggle or .lms-mobile-nav-open */
    .deznav {
        position: fixed !important;
        top: 64px !important;
        left: -280px !important;
        width: 265px !important;
        height: calc(100vh - 64px) !important;
        z-index: 1050 !important;
        transition: left 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
    }
    #main-wrapper.menu-toggle .deznav,
    body.lms-mobile-nav-open .deznav {
        left: 0 !important;
        width: 265px !important;
    }
    /* Ensure text labels and submenus are ALWAYS visible inside the open mobile drawer even when data-sidebar-style="mini" */
    #main-wrapper.menu-toggle .deznav .metismenu > li > a .nav-text,
    body.lms-mobile-nav-open .deznav .metismenu > li > a .nav-text,
    [data-sidebar-style="mini"] .deznav .metismenu > li > a .nav-text,
    [data-sidebar-style="overlay"] .deznav .metismenu > li > a .nav-text {
        display: inline-block !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    #main-wrapper.menu-toggle .lms-sidebar-backdrop,
    body.lms-mobile-nav-open .lms-sidebar-backdrop {
        display: block !important;
    }
}

@media (max-width: 767.98px) {
    .nav-header {
        width: 60px !important;
        padding: 0 8px !important;
    }
    .nav-header .brand-logo .logo-abbr {
        max-width: 32px !important;
        max-height: 32px !important;
    }
    .nav-header .nav-control {
        display: none !important; /* We use #lmsMobileMenuBtn right next to it in .header-left on phones */
    }
    .header {
        padding-left: 60px !important;
    }
    .header .header-content {
        padding-left: 8px !important;
        padding-right: 8px !important;
    }
    .header-right {
        gap: 4px !important;
    }
    .lms-hdr-btn,
    .lms-mobile-menu-btn {
        width: 34px !important;
        height: 34px !important;
        padding: 0 !important;
        border-radius: 8px !important;
    }
    .lms-hdr-btn i,
    .lms-mobile-menu-btn i {
        font-size: 17px !important;
    }
    /* Hide secondary desktop-only shortcuts button on very small screens to keep header clean */
    #lmsPwaInstallBtn {
        display: inline-flex !important;
    }
}

/* ==========================================================================
   WELCOME BANNER, KPI STAT CARDS & ENTERPRISE UI COMPONENTS
   ========================================================================== */
.lms-welcome-banner {
    background: linear-gradient(135deg, #0f172a 0%, #312e81 55%, #0284c7 100%);
    padding: 22px 26px;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.16);
    color: #fff;
}
.lms-stat-card {
    border: none !important;
    border-radius: 14px !important;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08) !important;
    transition: transform 0.2s ease;
}
.lms-stat-card:hover {
    transform: translateY(-3px);
}
.lms-stat-card .stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
}
.stat-indigo  { background: linear-gradient(135deg, #4f46e5, #3730a3) !important; }
.stat-cyan    { background: linear-gradient(135deg, #0ea5e9, #0369a1) !important; }
.stat-emerald { background: linear-gradient(135deg, #10b981, #047857) !important; }
.stat-amber   { background: linear-gradient(135deg, #f59e0b, #b45309) !important; }
.stat-purple  { background: linear-gradient(135deg, #8b5cf6, #5b21b6) !important; }
.stat-rose    { background: linear-gradient(135deg, #f43f5e, #be123c) !important; }
.stat-teal    { background: linear-gradient(135deg, #14b8a6, #0f766e) !important; }
.stat-slate   { background: linear-gradient(135deg, #334155, #0f172a) !important; }

.card {
    border: 1px solid #e2e8f0 !important;
    border-radius: 12px !important;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04) !important;
    background: #ffffff;
}
.card-header {
    background: linear-gradient(135deg, #0f172a, #1e1b4b) !important;
    color: #ffffff !important;
    border-top-left-radius: 11px !important;
    border-top-right-radius: 11px !important;
    padding: 14px 20px !important;
}
.card-header .card-title {
    color: #ffffff !important;
    font-weight: 700;
    margin-bottom: 0;
}

/* Video Watermark Overlay for LMS Course Player */
.lms-video-container {
    position: relative;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    user-select: none;
}
.lms-video-watermark {
    position: absolute;
    z-index: 25;
    pointer-events: none;
    background: rgba(15, 23, 42, 0.55);
    color: rgba(255, 255, 255, 0.85);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: lmsWatermarkFloat 14s infinite alternate ease-in-out;
}
@keyframes lmsWatermarkFloat {
    0%   { top: 12%; left: 8%; }
    35%  { top: 72%; left: 58%; }
    70%  { top: 22%; left: 62%; }
    100% { top: 68%; left: 12%; }
}

/* Print Styles */
@media print {
    .nav-header, .header, .deznav, .footer, .no-print, .lms-sidebar-backdrop {
        display: none !important;
    }
    .content-body {
        margin-left: 0 !important;
        padding-top: 0 !important;
    }
}