:root {
    --primary-dark: #0a192f;
    --primary-blue: #0f2b48;
    --accent-orange: #e65100;
    --accent-orange-hover: #bf360c;
    --accent-blue-glow: rgba(0, 122, 255, 0.35);
    --text-light: #ffffff;
    --text-muted: #94a3b8;
    --bg-dark: #070f1e;
    --border-radius: 8px;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
}

.navbar {
    background-color: var(--primary-dark);
    padding: 0.8rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
}

.brand-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.nav-logo-img {
    height: 38px;
    width: auto;
    border-radius: 6px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-light);
    text-decoration: none;
    letter-spacing: 1px;
}

.logo span {
    color: var(--accent-orange);
}

.nav-links {
    display: flex;
    gap: 20px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-orange);
}

.hero {
    background: linear-gradient(rgba(10, 25, 47, 0.88), rgba(7, 15, 30, 0.95)),
                radial-gradient(circle at center, #1e3a5f 0%, #070f1e 100%);
    padding: 80px 20px;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.container {
    max-width: 1250px;
    margin: 0 auto;
    width: 100%;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 40px;
    align-items: center;
}

.hero-left-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 35px;
}

.hero-main-logo {
    width: 220px;
    height: auto;
    border-radius: 20px;
    flex-shrink: 0;
    box-shadow: 0 0 35px var(--accent-blue-glow);
    border: 1px solid var(--glass-border);
}

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-left-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-main-logo {
        width: 150px;
    }
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.highlight-orange {
    color: var(--accent-orange);
}

.hero-description {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.card-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 32px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.card-glass h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 43, 72, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    color: var(--text-light);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-orange);
    background: rgba(15, 43, 72, 0.9);
}

.btn-orange {
    display: inline-block;
    width: 100%;
    padding: 14px 24px;
    background-color: var(--accent-orange);
    color: var(--text-light);
    border: none;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent-orange);
    color: var(--text-light);
    padding: 8px 16px;
    border-radius: 4px;
    text-decoration: none;
}

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

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.qual-card {
    border-top: 3px solid var(--accent-orange);
    background: rgba(255, 255, 255, 0.02);
    padding: 20px;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.qual-card h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-light);
}

.qual-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.login-option-card {
    display: block;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}

.login-option-card:hover {
    border-color: var(--accent-orange);
    transform: translateY(-4px);
    text-decoration: none;
}

.login-option-card h3 {
    color: var(--text-light);
}

/* ---------- Backend pages (admin/partner/participant) ---------- */

body:not(:has(.hero)) {
    padding-top: 0;
}

.backend-shell {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px 80px;
}

.backend-shell h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.backend-shell h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 32px 0 16px;
}

.backend-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 12px;
    margin-bottom: 24px;
}

.backend-nav a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 6px;
    transition: var(--transition);
}

.backend-nav a:hover {
    background: rgba(230, 81, 0, 0.15);
    color: var(--accent-orange);
    text-decoration: none;
}

.backend-nav a.logout {
    margin-left: auto;
    color: var(--text-muted);
}

.user-meta {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 20px 24px;
}

.stat-card .stat-value {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-orange);
    display: block;
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.backend-shell table {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.backend-shell th, .backend-shell td {
    border-bottom: 1px solid var(--glass-border);
    padding: 12px 16px;
}

.backend-shell th {
    background: rgba(255,255,255,0.03);
}

.backend-shell tbody tr:last-child td {
    border-bottom: none;
}

/* ---------- Lighter backend theme ---------- */

body:has(.backend-shell) {
    background-color: #eef1f5;
    color: #1a2332;
}

body:has(.backend-shell) .navbar {
    background-color: #ffffff;
    border-bottom: 1px solid #dde2e8;
}

body:has(.backend-shell) .nav-links a,
body:has(.backend-shell) .logo {
    color: #1a2332;
}

body:has(.backend-shell) .backend-shell h1,
body:has(.backend-shell) .backend-shell h2 {
    color: #1a2332;
}

body:has(.backend-shell) .backend-nav {
    background: #ffffff;
    border: 1px solid #dde2e8;
    backdrop-filter: none;
}

body:has(.backend-shell) .backend-nav a {
    color: #4a5568;
}

body:has(.backend-shell) .backend-nav a:hover {
    background: rgba(230, 81, 0, 0.08);
    color: var(--accent-orange);
}

body:has(.backend-shell) .stat-card,
body:has(.backend-shell) table,
body:has(.backend-shell) form {
    background: #ffffff;
    border: 1px solid #dde2e8;
    backdrop-filter: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

body:has(.backend-shell) th {
    background: #f4f6f8;
    color: #6b7280;
}

body:has(.backend-shell) td {
    color: #1a2332;
    border-bottom: 1px solid #eceef1;
}

body:has(.backend-shell) .stat-card .stat-label {
    color: #6b7280;
}

body:has(.backend-shell) input,
body:has(.backend-shell) select,
body:has(.backend-shell) textarea,
body:has(.backend-shell) .form-control {
    background: #f8f9fb;
    border: 1px solid #dde2e8;
    color: #1a2332;
}

body:has(.backend-shell) label {
    color: #6b7280;
}

body:has(.backend-shell) .user-meta {
    color: #6b7280;
}

/* Settings form should be full-width, not constrained like the login form */
.backend-shell form {
    max-width: none;
    margin: 0;
}

.backend-shell form h3 {
    margin: 24px 0 12px;
    font-size: 1.05rem;
    color: var(--accent-orange);
}

.backend-shell form h3:first-of-type {
    margin-top: 0;
}

/* Backend form fields: label above input, one per row, full width */
.backend-shell form label {
    display: block;
    margin-top: 18px;
    font-size: 0.85rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.backend-shell form label:first-of-type {
    margin-top: 0;
}

.backend-shell form label input,
.backend-shell form label select {
    display: block;
    width: 100%;
    max-width: 420px;
    margin-top: 6px;
    text-transform: none;
    letter-spacing: normal;
    font-size: 0.95rem;
}

.backend-shell form button {
    width: auto;
    margin-top: 28px;
}

/* Settings form: two-column layout per section, card-like section grouping */
.backend-shell form h3 {
    padding-bottom: 10px;
    border-bottom: 1px solid #eceef1;
}

.backend-shell form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 32px;
    align-items: start;
}

.backend-shell form h3,
.backend-shell form button,
.backend-shell form .flash {
    grid-column: 1 / -1;
}

.backend-shell form label input,
.backend-shell form label select {
    max-width: none;
}

/* Modernize backend form inputs and card */
.backend-shell form,
.backend-shell table,
.backend-shell .stat-card {
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(16, 24, 40, 0.06), 0 1px 2px rgba(16, 24, 40, 0.04);
    border: 1px solid #e5e8ec;
}

.backend-shell form {
    padding: 32px 36px;
}

.backend-shell form label input,
.backend-shell form label select {
    height: 42px;
    padding: 0 14px;
    border-radius: 8px;
    border: 1px solid #d5dae1;
    background: #fbfcfd;
    font-size: 0.95rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.backend-shell form label input:focus,
.backend-shell form label select:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(230, 81, 0, 0.12);
    background: #ffffff;
}

.backend-shell form label {
    font-weight: 600;
    font-size: 0.76rem;
    letter-spacing: 0.04em;
    color: #8a94a3;
    margin-top: 22px;
}

.backend-shell form h3 {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--accent-orange);
    border-bottom: 1px solid #eef0f3;
    padding-bottom: 12px;
    margin-top: 8px;
}

.backend-shell form h3:first-of-type {
    margin-top: 0;
}

.backend-shell form button {
    height: 44px;
    padding: 0 28px;
    border-radius: 8px;
    font-size: 0.92rem;
    justify-self: start;
    box-shadow: 0 1px 2px rgba(230, 81, 0, 0.25);
}

.backend-shell .backend-nav {
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(16, 24, 40, 0.05);
}

.backend-shell h1 {
    letter-spacing: -0.02em;
}