/*
 * IDEALNET Modern UI - Design Tokens & Layout Shell
 * Author: Waly DIOUF / BrainIT
 * Version: 3.0.0
 * Description: CSS custom properties, global resets, and flexbox layout
 */

/* ===========================
   DESIGN TOKENS
   =========================== */
:root {
    /* Primary Colors (Corporate Blue) */
    --idealnet-primary: #005b89;
    --idealnet-primary-hover: #004d75;
    --idealnet-primary-active: #003d5e;
    --idealnet-primary-light: #d9eef6;
    --idealnet-focus-ring: rgba(0, 91, 137, 0.25);

    /* Topbar */
    --idealnet-topbar-height: 52px;

    /* Neutral Colors */
    --idealnet-bg: #f8fafc;
    --idealnet-bg-hover: #f1f5f9;
    --idealnet-bg-active: #e2e8f0;
    --idealnet-card-bg: #ffffff;
    --idealnet-text: #1e293b;
    --idealnet-text-muted: #64748b;
    --idealnet-border: #cbd5e1;
    --idealnet-border-light: #e2e8f0;

    /* Status Colors */
    --idealnet-success: #16a34a;
    --idealnet-warning: #d97706;
    --idealnet-danger: #dc2626;

    /* Table Colors */
    --idealnet-table-header: #f1f5f9;
    --idealnet-row-alt: #f8fafc;
    --idealnet-row-hover: #eff6ff;

    /* Sidebar */
    --idealnet-sidebar-bg: #ffffff;
    --idealnet-sidebar-width: 210px;
    --idealnet-sidebar-border: #e2e8f0;

    /* Typography */
    --idealnet-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                            "Century Gothic", Verdana, sans-serif;
    --idealnet-font-size-base: 0.875rem;
    --idealnet-font-size-sm: 0.8125rem;
    --idealnet-font-size-xs: 0.75rem;
    --idealnet-font-size-lg: 1rem;
    --idealnet-line-height: 1.5;

    /* Spacing */
    --idealnet-space-xs: 4px;
    --idealnet-space-sm: 8px;
    --idealnet-space-md: 16px;
    --idealnet-space-lg: 24px;
    --idealnet-space-xl: 32px;

    /* Shadows */
    --idealnet-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --idealnet-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --idealnet-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --idealnet-radius-sm: 4px;
    --idealnet-radius-md: 8px;
    --idealnet-radius-lg: 12px;

    /* Transitions */
    --idealnet-transition: 0.2s ease;
}

/* ===========================
   GLOBAL RESETS
   =========================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--idealnet-font-family);
    font-size: var(--idealnet-font-size-base);
    line-height: var(--idealnet-line-height);
    color: var(--idealnet-text);
    background-color: var(--idealnet-bg);
    background-image: none;
    margin: 0;
    padding: 0;
}

/* ===========================
   LINK COLORS
   =========================== */
a:link {
    color: var(--idealnet-primary);
    text-decoration: none;
}

a:link:hover {
    color: var(--idealnet-primary-hover);
    text-decoration: underline;
}

a:visited {
    color: var(--idealnet-primary);
    text-decoration: none;
}

/* ===========================
   APP SHELL LAYOUT (FLEXBOX)
   =========================== */
.idealnet-app {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar --- */
.idealnet-sidebar {
    width: var(--idealnet-sidebar-width);
    background: var(--idealnet-sidebar-bg);
    border-right: 1px solid var(--idealnet-sidebar-border);
    flex-shrink: 0;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    padding: var(--idealnet-space-md);
    z-index: 100;
}

.idealnet-sidebar-header {
    text-align: center;
    padding-bottom: var(--idealnet-space-md);
    border-bottom: 1px solid var(--idealnet-border-light);
    margin-bottom: var(--idealnet-space-md);
}

.idealnet-sidebar-header img {
    max-width: 140px;
    height: auto;
    cursor: pointer;
}

.idealnet-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--idealnet-primary);
    margin-top: var(--idealnet-space-sm);
    letter-spacing: 0.5px;
}

.idealnet-version {
    font-size: var(--idealnet-font-size-xs);
    color: var(--idealnet-text-muted);
    margin-top: 2px;
}

/* --- Session Info --- */
.idealnet-session {
    text-align: center;
    padding-bottom: var(--idealnet-space-md);
    border-bottom: 1px solid var(--idealnet-border-light);
    margin-bottom: var(--idealnet-space-md);
    font-size: var(--idealnet-font-size-sm);
}

.idealnet-session .idealnet-date {
    font-weight: 600;
    color: var(--idealnet-text);
    margin-bottom: var(--idealnet-space-xs);
}

.idealnet-session .idealnet-clock {
    color: var(--idealnet-text-muted);
    font-variant-numeric: tabular-nums;
}

.idealnet-session .idealnet-username {
    color: var(--idealnet-primary);
    font-weight: 600;
    margin-top: var(--idealnet-space-sm);
}

.idealnet-session a {
    font-size: var(--idealnet-font-size-xs);
    color: var(--idealnet-text-muted);
}

.idealnet-session a:hover {
    color: var(--idealnet-primary);
}

/* --- Sidebar Navigation --- */
.idealnet-nav {
    display: flex;
    flex-direction: column;
    gap: var(--idealnet-space-xs);
}

/* --- Topbar --- */
.idealnet-topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    height: var(--idealnet-topbar-height);
    background: var(--idealnet-card-bg);
    border-bottom: 1px solid var(--idealnet-border-light);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.06);
    display: flex;
    align-items: stretch;
}

.idealnet-topbar-right {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 16px;
    flex-shrink: 0;
    border-left: 1px solid var(--idealnet-border-light);
}

.idealnet-topbar-clock {
    font-size: var(--idealnet-font-size-sm);
    color: var(--idealnet-text-muted);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    padding: 0 6px;
}

.idealnet-topbar-clock strong {
    color: var(--idealnet-text);
    font-weight: 700;
}

.idealnet-topbar-icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: var(--idealnet-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--idealnet-text-muted);
    font-size: 1rem;
    transition: background var(--idealnet-transition), color var(--idealnet-transition);
    padding: 0;
}

.idealnet-topbar-icon-btn:hover {
    background: var(--idealnet-bg);
    color: var(--idealnet-primary);
}

.idealnet-topbar-logout:hover {
    background: #fff1f2;
    color: #dc2626;
}

/* --- Main Content --- */
.idealnet-main {
    flex: 1;
    margin-left: var(--idealnet-sidebar-width);
    min-width: 0;
    padding: 0;
}

#bodycontent {
    padding: var(--idealnet-space-md);
}

/* --- Mobile Header (hidden on desktop by default) --- */
.idealnet-mobile-header {
    display: none;
    align-items: center;
    padding: 12px var(--idealnet-space-md);
    background: var(--idealnet-primary);
    color: white;
    position: sticky;
    top: 0;
    z-index: 55;
}

.idealnet-menu-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--idealnet-radius-sm);
}

.idealnet-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
}

.idealnet-mobile-title {
    font-weight: 700;
    font-size: var(--idealnet-font-size-lg);
    margin-left: var(--idealnet-space-md);
    letter-spacing: 0.5px;
}

/* --- Footer --- */
.idealnet-footer {
    text-align: center;
    padding: var(--idealnet-space-md);
    color: var(--idealnet-text-muted);
    font-size: var(--idealnet-font-size-xs);
    border-top: 1px solid var(--idealnet-border-light);
}

/* --- Sidebar overlay backdrop for mobile --- */
.idealnet-sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 99;
}

/* ===========================
   UTILITY CLASSES
   =========================== */
.idealnet-card {
    background: var(--idealnet-card-bg);
    border: 1px solid var(--idealnet-border-light);
    border-radius: var(--idealnet-radius-md);
    padding: var(--idealnet-space-lg);
    box-shadow: var(--idealnet-shadow-sm);
}

.idealnet-text-muted {
    color: var(--idealnet-text-muted);
}

.idealnet-text-center {
    text-align: center;
}

.welcome-card {
    background: white;
    border: 1px solid var(--idealnet-border-light);
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    max-width: 600px;
    margin: 0 auto;
}

.welcome-card h2 {
    color: var(--idealnet-primary);
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.welcome-card p {
    color: var(--idealnet-text-muted);
    margin: 4px 0;
}