/* ── Reset & Base ───────────────────────────────────── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: var(--fs-base);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
    overflow-x: hidden;
    /* Prevent global horizontal scroll */
    width: 100%;
}

/* ── IRCC Tracker Layout ────────────────────────────── */
.app-container {
    display: flex;
    min-height: 100vh;
    padding: var(--space-4);
    gap: var(--space-4);
    background: var(--bg-primary);
    min-width: 0;
    /* Important for flex child expansion */
    max-width: 100%;
}

/* Sidebar Styling */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-card);
    flex-shrink: 0;
    transition: transform 0.3s ease, left 0.3s ease;
}

/* Sidebar Backdrop for Mobile */
.sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    z-index: 1008;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.sidebar--open~.main-wrapper .sidebar-backdrop,
.sidebar--open+.sidebar-backdrop {
    opacity: 1;
    pointer-events: auto;
}

/* If the backdrop is inside the body directly */
.sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.main-wrapper {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    min-width: 0;
    max-width: 100%;
}

/* Header Styling */
.header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-card);
}

/* Content Area Styling */
.content-area {
    flex-grow: 1;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-card);
    overflow-y: auto;
    position: relative;
    min-width: 0;
    max-width: 100%;
}

/* ── Branding ──────────────────────────────────────── */
.brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-10);
}

.brand__logo {
    width: 44px;
    height: 44px;
    background: var(--accent-green);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-on-accent);
}

.brand__name {
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    letter-spacing: -0.05em;
    font-family: var(--font-heading);
}

/* ── Typography Utility ────────────────────────────── */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
}

.text-muted {
    color: var(--text-muted);
    font-size: var(--fs-sm);
}

/* ── NS Flag Watermark Fix ────────────────────────── */
/* Re-applying the NS flag as a very subtle branded watermark in the main content area */
.content-area::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    background-image: url('../assets/ns_flag.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    opacity: 0.05;
    pointer-events: none;
    z-index: 0;
}

.content-area>* {
    position: relative;
    z-index: 1;
}

/* ── Responsive & Global Layout Fixes ──────────────── */
@media (max-width: 1024px) {
    .app-container {
        padding: 0;
        gap: 0;
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        left: -290px;
        top: 0;
        bottom: 0;
        z-index: 1010;
        border-radius: 0;
        transition: transform 0.3s ease, left 0.3s ease;
        height: 100vh;
        width: 280px;
        box-shadow: none;
    }

    .sidebar--open {
        left: 0 !important;
        transform: none !important;
        box-shadow: 20px 0 50px rgba(0, 0, 0, 0.2);
    }

    .main-wrapper {
        gap: 0;
        padding-top: var(--header-height);
    }

    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1005;
        border-radius: 0;
        height: var(--header-height);
        padding: 0 var(--space-4);
        box-shadow: var(--shadow-sm);
    }

    .content-area {
        border-radius: 0;
        padding: var(--space-4);
        background: var(--bg-primary);
        box-shadow: none;
        margin-top: 0;
    }

    .mobile-nav-toggle {
        display: flex !important;
    }
}