:root {
    --f1-red: #e10600;
    --f1-black: #15151e;
    --f1-dark-grey: #38383f;
    --f1-white: #ffffff;
    --f1-silver: #949498;
    --f1-carbon: #1f1f27;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --transition-fast: 0.2s ease;
}

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

body {
    background-color: var(--f1-black);
    background-image: url('../Background.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--f1-white);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header & Nav */
header {
    background-color: var(--f1-red);
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: -1px;
    text-transform: uppercase;
}

.nav-links a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    transition: var(--transition-fast);
}

.nav-links a:hover {
    opacity: 0.8;
}

/* Auth Pages */
.auth-container {
    max-width: 400px;
    margin: 100px auto;
    background: var(--f1-carbon);
    padding: 40px;
    border-radius: 8px;
    border-top: 4px solid var(--f1-red);
}

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

#predict-race-name,
#predict-race-time,
#predict-league-name {
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.8rem;
    color: var(--f1-silver);
    text-transform: uppercase;
}

input {
    width: 100%;
    padding: 12px;
    background: var(--f1-dark-grey);
    border: 1px solid transparent;
    color: white;
    border-radius: 4px;
    font-size: 1rem;
}

input:focus {
    outline: none;
    border-color: var(--f1-red);
}

button {
    width: 100%;
    padding: 12px;
    background: var(--f1-red);
    color: white;
    border: none;
    border-radius: 4px;
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    transition: var(--transition-fast);
}

button:hover {
    background: #ff0700;
    transform: translateY(-2px);
}

/* Dashboard / Race List */
.race-card {
    background: var(--f1-carbon);
    margin-bottom: 15px;
    padding: 20px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 4px solid transparent;
    transition: var(--transition-fast);
}

.race-card:hover {
    background: var(--f1-dark-grey);
}

.race-card.sprint {
    border-left-color: #ff8700;
}

.race-info h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.race-date {
    font-size: 0.8rem;
    color: var(--f1-silver);
}

.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-right: 10px;
}

.badge-sprint {
    background: #ff8700;
    color: black;
}

/* Hero / Standings */
.standings-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: var(--f1-carbon);
    border-radius: 8px;
    overflow: hidden;
}

.standings-table th,
.standings-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--f1-dark-grey);
}

.standings-table th {
    background: var(--f1-dark-grey);
    color: var(--f1-silver);
    font-size: 0.8rem;
    text-transform: uppercase;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* HTA specific fix for background */
body.hta-fix {
    background-color: #15151e !important;
}