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

:root {
    --color-bg: #eef0f5;
    --color-surface: #ffffff;
    --color-text: #1a1a2e;
    --color-text-muted: #5f6577;
    --color-border: #d1d5db;
    --color-border-light: #e4e7ef;
    --color-primary: #2c3e6b;
    --color-primary-hover: #1a2a4a;
    --color-primary-light: #e8ecf4;
    --color-danger: #9b1c1c;
    --color-danger-hover: #7b1515;
    --color-success: #276749;
    --color-warning: #92400e;
    --color-info: #1e40af;
    --color-accent: #b8982a;
    --color-accent-light: #fef9ec;

    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", "Cascadia Code", "Fira Code", Consolas, monospace;

    --radius-sm: 3px;
    --radius: 5px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.07);

    --transition: 0.18s ease;

    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
}

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    background-image: radial-gradient(rgba(44, 62, 107, 0.055) 1px, transparent 1px);
    background-size: 22px 22px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    font-weight: 600;
    color: var(--color-text);
}

h1 { font-size: 1.6rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.1rem; }

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

a:hover {
    text-decoration: underline;
}

p {
    margin-bottom: var(--space-md);
}

small, .text-sm {
    font-size: 0.867rem;
}

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

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--color-bg);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
}

/* ===== Layout ===== */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-wide {
    max-width: 1680px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

main.container {
    flex: 1;
    padding-top: var(--space-xl);
    padding-bottom: var(--space-2xl);
    animation: pageEnter 0.25s ease;
}

@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Header / Nav ===== */
.site-header {
    background: linear-gradient(135deg, #18254a 0%, #2c3e6b 55%, #1e3a60 100%);
    color: #fff;
    border-bottom: 3px solid var(--color-accent);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 100;
}

.nav-bar {
    display: flex;
    align-items: center;
    height: 60px;
    gap: var(--space-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    letter-spacing: 0.02em;
    margin-right: var(--space-lg);
    white-space: nowrap;
}

.nav-brand:hover {
    text-decoration: none;
    color: #fff;
}

.nav-brand-shield {
    display: inline-block;
    width: 17px;
    height: 20px;
    background: var(--color-accent);
    clip-path: polygon(50% 0%, 100% 18%, 100% 62%, 50% 100%, 0% 62%, 0% 18%);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.nav-brand:hover .nav-brand-shield {
    transform: scale(1.1);
}

.nav-brand-logo {
    height: 24px;
    width: auto;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.nav-brand:hover .nav-brand-logo {
    transform: scale(1.1);
}

.nav-brand-wizard {
    font-weight: 400;
    opacity: 0.85;
}

.nav-links {
    display: flex;
    gap: var(--space-xs);
    flex: 1;
}

.nav-bar .nav-search {
    flex: 1;
    max-width: 340px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 0.4rem var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: background var(--transition), color var(--transition);
    letter-spacing: 0.01em;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.13);
    text-decoration: none;
}

.nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
    font-weight: 600;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-left: auto;
}

.nav-user {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.867rem;
}

/* ===== Nav Dropdowns ===== */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    padding: 0.35rem 0;
    padding-top: 0.6rem;
    margin-top: 4px;
    animation: dropdownEnter 0.15s ease;
}

/* Bridge the gap between button and menu so hover doesn't break */
.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 0;
    right: 0;
    height: 8px;
}

@keyframes dropdownEnter {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    display: block;
}

.nav-dropdown-item {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.875rem;
    transition: background var(--transition), color var(--transition);
}

.nav-dropdown-item:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    text-decoration: none;
}

.nav-dropdown-divider {
    border-top: 1px solid var(--color-border-light);
    margin: 0.3rem 0;
}

/* ===== Dashboard Tiles ===== */
.dashboard-section {
    margin-bottom: var(--space-2xl);
}

.dashboard-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border-light);
}

.tile-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    width: 100%;
}

.tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: var(--color-text);
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
    gap: var(--space-sm);
}

.tile:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--color-primary);
    text-decoration: none;
    color: var(--color-text);
}

.tile-icon {
    font-size: 1.75rem;
    color: var(--color-primary);
    line-height: 1;
}

.tile-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
}

.tile-desc {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* ===== Footer ===== */
.site-footer {
    border-top: 1px solid var(--color-border-light);
    padding: var(--space-md) 0;
    margin-top: auto;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(4px);
    text-align: center;
}

/* ===== Dashboard Logo ===== */
.dashboard-logo {
    text-align: center;
    padding: 2rem 0 1rem;
}

.dashboard-logo img {
    max-height: 120px;
    width: auto;
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    gap: var(--space-md);
    flex-wrap: wrap;
}

.page-header h1 {
    margin: 0;
}

/* ===== Section ===== */
.section {
    margin-bottom: var(--space-2xl);
}

.section h2 {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-border-light);
    font-size: 1.15rem;
    letter-spacing: -0.01em;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-2xl) var(--space-md);
    background: var(--color-surface);
    border: 1.5px dashed var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

/* ===== Grid Utilities ===== */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }
}

/* ===== Flex Utilities ===== */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ===== Spacing Utilities ===== */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }

/* ===== Challenge ===== */
.challenge-scg-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.challenge-scg-row:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.challenge-scg-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    min-width: 0;
}

.challenge-scg-title {
    font-weight: 600;
    font-size: 0.95rem;
}

.challenge-scg-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    flex-wrap: wrap;
}
.mb-lg { margin-bottom: var(--space-lg); }