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

:root {
    --bg: #0e0e11;
    --surface: #18181c;
    --surface-elevated: #222228;
    --border: #2a2a32;
    --text: #e8e8ed;
    --text-secondary: #8e8e99;
    --accent-nhl: #7cb3d4;
    --accent-nba: #e8943a;
    --correct: #3ddc84;
    --incorrect: #e84057;
    --danger: #e84057;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'DM Mono', monospace;
    --radius: 6px;
    --radius-lg: 10px;
}

html {
    font-size: 15px;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
    font-size: inherit;
}

input, select {
    font-family: var(--font-body);
    font-size: inherit;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.6rem 0.8rem;
    outline: none;
    width: 100%;
}

input:focus, select:focus {
    border-color: var(--accent-nhl);
}

input::placeholder {
    color: var(--text-secondary);
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 1.8rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }

#main-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    height: 52px;
}

.nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.2rem;
    display: flex;
    align-items: center;
    height: 100%;
    gap: 2rem;
}

.nav-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    white-space: nowrap;
}

.logo-brackets {
    color: var(--text);
}

.logo-ca {
    color: var(--text-secondary);
}

.nav-links {
    display: flex;
    gap: 0.2rem;
    flex: 1;
}

.nav-links a {
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.nav-user {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    position: relative;
}

.nav-user-username {
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    position: relative;
}

.nav-user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    min-width: 140px;
    padding: 0.3rem 0;
    z-index: 200;
    display: none;
}

.nav-user-dropdown.open {
    display: block;
}

.nav-user-dropdown button {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.5rem 0.8rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.nav-user-dropdown button:hover {
    background: var(--surface);
    color: var(--text);
}

#app {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 1.2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.2rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    gap: 0.4rem;
}

.btn-primary {
    background: var(--accent-nhl);
    color: #0e0e11;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-primary.nba {
    background: var(--accent-nba);
}

.btn-secondary {
    background: var(--surface-elevated);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-sm {
    padding: 0.35rem 0.8rem;
    font-size: 0.8rem;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.2rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
}

.form-error {
    color: var(--danger);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.sport-tabs {
    display: flex;
    gap: 0.3rem;
    margin-bottom: 1.2rem;
}

.sport-tab {
    padding: 0.45rem 1rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.sport-tab.active-nhl {
    background: var(--accent-nhl);
    color: #0e0e11;
    border-color: var(--accent-nhl);
}

.sport-tab.active-nba {
    background: var(--accent-nba);
    color: #0e0e11;
    border-color: var(--accent-nba);
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

th {
    font-family: var(--font-display);
    font-weight: 600;
    text-align: left;
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

td {
    padding: 0.55rem 0.8rem;
    border-bottom: 1px solid var(--border);
}

.mono {
    font-family: var(--font-mono);
}

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

.text-sm {
    font-size: 0.82rem;
}

.text-xs {
    font-size: 0.75rem;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.hidden { display: none !important; }

.empty-state {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-secondary);
}

.empty-state h2 {
    margin-bottom: 0.5rem;
    color: var(--text);
}

.empty-state p {
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.badge-nhl {
    background: rgba(124, 179, 212, 0.15);
    color: var(--accent-nhl);
}

.badge-nba {
    background: rgba(232, 148, 58, 0.15);
    color: var(--accent-nba);
}

.toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.7rem 1rem;
    font-size: 0.85rem;
    z-index: 999;
}

.toast.toast-success {
    border-color: var(--correct);
}

.toast.toast-error {
    border-color: var(--incorrect);
}

@media (max-width: 768px) {
    html { font-size: 14px; }
    .nav-inner { gap: 0.8rem; }
    .nav-links { gap: 0; }
    .nav-links a { padding: 0.4rem 0.5rem; font-size: 0.82rem; }
    #app { padding: 1rem 0.8rem; }
}

@media (max-width: 480px) {
    .nav-links a span { display: none; }
}