/* Modern Reset & Base */
:root {
    /* STRICT COLOR PALETTE */
    /* Removed Dark Blue #241E4E per request */
    --color-accent: #5D4FBA;
    /* Text Main & Primary */
    --color-lavender: #AAA7D9;
    /* Borders / Secondary */
    --color-light: #F7FFF7;
    /* Background */

    /* Theme Mappings - FORCE LIGHT THEME SITEWIDE */
    --primary: var(--color-accent);
    --primary-hover: #4a3e9e;
    /* Slightly darker purple manually for hover since dark blue is gone */

    --bg-body: var(--color-light);
    --bg-card: var(--color-light);
    /* Strictly light per request */

    --text-main: var(--color-accent);
    /* Main text is now Purple */
    --text-muted: var(--color-lavender);
    /* Muted text is Lavender */

    --border: var(--color-lavender);

    --radius: 0.75rem;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Force Light Theme even if system prefers dark, per user request for strict branding */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-body: var(--color-light);
        --bg-card: var(--color-light);
        --text-main: var(--color-accent);
        --text-muted: var(--color-lavender);
        --border: var(--color-lavender);
    }
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.5;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--text-main);
    text-decoration: none;
    transition: color 0.2s;
    border-bottom: 1px dotted var(--color-lavender);
}

a:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-dark);
}

/* Layout */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
    border: none;
}

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

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    border: none;
}

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

main.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    width: 100%;
    flex: 1;
}

/* Typography */
h1,
h2,
h3 {
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
    color: var(--text-main);
    /* Changed from color-light to text-main (dark) */
}

h1 span {
    color: var(--color-accent) !important;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

/* Components */
.card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.2s;
}

.grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-light);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: transparent;
    color: var(--color-accent);
}

.btn-outline {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: transparent;
}

.btn-outline:hover {
    background: var(--color-accent);
    color: var(--color-light);
}

.btn-danger {
    color: var(--text-main);
    border: 1px solid #ef4444;
}

.btn-danger:hover {
    background: #ef4444;
    color: white;
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/* Forms */
input,
select,
textarea {
    width: 100%;
    padding: 0.625rem;
    border-radius: 0.5rem;
    border: 2px solid var(--border);
    background: var(--bg-card);
    color: var(--text-main);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    font-family: inherit;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--color-accent);
}

label {
    display: block;
    margin-bottom: 0.375rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

th {
    text-align: left;
    padding: 0.75rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
}

td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
}

tr:last-child td {
    border-bottom: none;
}

/* Utilities */
.text-center {
    text-align: center;
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.mt-4 {
    margin-top: 1rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.w-auto {
    width: auto;
    margin: 0;
}

/* Stats */
.stat-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    main.container {
        padding: 0 1rem;
    }

    .card {
        padding: 1rem;
        overflow-x: auto;
        /* Scrollable tables if too wide */
    }

    th,
    td {
        padding: 0.5rem 0.25rem;
        /* Reduced horizontal padding */
        font-size: 0.85rem;
    }

    input,
    select {
        font-size: 16px;
        /* Prevents iOS zoom on focus */
    }

    /* Stack grid items on very small screens */
    .grid {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    /* Adjust buttons */
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    /* Ensure flex headers in cards (like Project Sol) don't break */
    .card .flex.justify-between {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}