/**
 * PBX MONITOR - Core Design System
 * Senior Web Architect: SiteBuilder Elite
 * Version: 2.5.5
 */

:root {
    /* Main Colour Palette - Professional Slate-Navy */
    --primary: #3b82f6;
    --primary-glow: rgba(59, 130, 246, 0.2);
    --bg-main: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-colour: #334155;
    
    /* Functional Status Colours - Premium Palette */
    --clr-internal: #a02bff;   /* Purple */
    --clr-inbound: #10b981;    /* Emerald */
    --clr-outbound: #0ea5e9;   /* Cyan */
    --clr-ringing: #f59e0b;    /* Amber */
    --clr-busy: #ef4444;       /* Rose */
    --clr-business: #4287f5;   /* Azure Blue */
    --clr-off-work: #7a7a7a;   /* Slate Gray */
    
    /* Layout Tokens */
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
    --glass-border: rgba(255, 255, 255, 0.05);
}

/* Light Theme Transition */
[data-theme="light"] {
    --bg-main: #f1f5f9;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-colour: #e2e8f0;
    --glass-border: rgba(0, 0, 0, 0.05);
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
}

/* Reset & Base System */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.4s ease;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-colour);
    background: var(--bg-card);
    padding: 1rem 0;
}

.nav-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-block {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
}

/* Dashboard Engine - Fixed Widths to Eliminate Shimmering */
.grid-layout {
    display: grid;
    grid-template-columns: 80px 70px 300px 80px 80px 80px 100px 1fr;
    align-items: center;
    contain: layout;
}

.grid-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Monitor Dashboard Structure */
.monitor-container {
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-colour);
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.monitor-header {
    background: var(--bg-card);
    border-bottom: 2px solid var(--border-colour);
    padding: 15px 0;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ext-row {
    border-bottom: 1px solid var(--border-colour);
    padding: 10px 0;
    height: 85px;
    background-color: transparent;
    transition: background-color 0.2s ease;
    user-select: none;
}

.ext-row:hover {
    background-color: rgba(255, 255, 255, 0.05) !important;
    cursor: pointer;
}

/* Status Iconography */
.status-icon-box {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    position: relative;
    color: var(--text-muted);
}

.status-icon-box::before {
    content: "";
    position: absolute;
    left: 0;
    top: 15%;
    height: 70%;
    width: 4px;
    border-radius: 0 4px 4px 0;
}

/* Presence Logic - Stable Icons */
.status-available .status-icon-box::before { background-color: var(--clr-inbound); }
.status-available .status-icon-box { color: var(--clr-inbound); }

.status-do_not_disturb .status-icon-box::before { background-color: var(--clr-busy); height: 100%; top: 0; }
.status-do_not_disturb .status-icon-box { color: var(--clr-busy); background: rgba(239, 68, 68, 0.1); }

.status-away .status-icon-box::before { background-color: var(--clr-ringing); }
.status-lunch .status-icon-box::before { background-color: var(--clr-internal); }
.status-business_trip .status-icon-box::before { background-color: var(--clr-business); }
.status-off_work .status-icon-box::before { background-color: var(--clr-off-work); }

/* Statistics Dashboard */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-colour);
    border-radius: 12px;
    padding: 20px;
    height: 110px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: var(--card-shadow);
}

.text-internal { color: var(--clr-internal) !important; }
.text-inbound { color: var(--clr-inbound) !important; }
.text-outbound { color: var(--clr-outbound) !important; }

/* Active Call Row Tints */
.call-tint-inbound {
    background-color: rgba(16, 185, 129, 0.08) !important;
    border-left: 4px solid var(--clr-inbound);
}

.call-tint-outbound {
    background-color: rgba(59, 130, 246, 0.08) !important;
    border-left: 4px solid var(--primary);
}

.call-tint-ringing {
    background-color: rgba(245, 158, 11, 0.08) !important;
    border-left: 4px solid var(--clr-ringing);
}

/* UI Utilities */
.theme-switch {
    background: var(--border-colour);
    border: none;
    padding: 0.5rem;
    border-radius: 0.75rem;
    cursor: pointer;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 700;
    text-decoration: none;
    display: inline-block;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px var(--primary-glow);
}

.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
}

@keyframes fadeInUp {
    to { opacity: 1; transform: translateY(0); }
}

.visible {
    animation: fadeInUp 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* Responsive Overrides */
@media (max-width: 1024px) {
    .grid-layout {
        grid-template-columns: 60px 60px 1fr 60px 60px 60px;
    }
    .grid-center:nth-child(7), 
    .ps-3:nth-child(8) { display: none; }
}

/* ---------------------------------------------------------
   PRICING ENGINE COMPONENTS
   Independent of Dashboard Stat constraints
   --------------------------------------------------------- */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-colour);
    border-radius: 24px;
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.3s ease, border-color 0.3s ease;
    box-shadow: var(--card-shadow);
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
}

.pricing-card.highlight {
    border: 2px solid var(--primary);
    background: linear-gradient(180deg, var(--bg-card) 0%, rgba(59, 130, 246, 0.05) 100%);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.price-value {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 1.5rem 0;
    line-height: 1;
}

.price-currency {
    font-size: 1.5rem;
    vertical-align: top;
    margin-right: 4px;
    color: var(--text-muted);
}

.price-period {
    font-size: 1rem;
    color: var(--text-muted);
}

.feature-list {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
    flex-grow: 1;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.feature-item i {
    color: var(--clr-inbound);
    flex-shrink: 0;
}