:root {
    --primary-black: #000000;
    --primary-white: #FFFFFF;
    --secondary-black: #1a1a1a;
    --bg-light: #fdfdfd;
    --bg-grey: #f4f4f4;
    --border-dark: #333333;
    --border-light: #e0e0e0;
    --text-dark: #121212;
    --text-light: #757575;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --radius: 4px;
    --font-main: 'Outfit', 'Inter', system-ui, sans-serif;
}

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

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

header {
    background-color: var(--primary-black);
    color: var(--primary-white);
    padding: 1.5rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-dark);
}

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

.header-logo img {
    height: 60px;
    width: auto;
    display: block;
}

header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--primary-white);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.7;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background-color: var(--primary-white);
    color: var(--primary-black);
    border: 1px solid var(--primary-white);
}

.btn-primary:hover {
    background-color: var(--primary-black);
    color: var(--primary-white);
    border: 1px solid var(--primary-white);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--primary-black);
    color: var(--primary-black);
}

.btn-outline:hover {
    background-color: var(--primary-black);
    color: var(--primary-white);
}

.card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 450px;
    margin: 0 auto;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

input,
select,
textarea {
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    font-size: 0.95rem;
    background: #fff;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input:focus {
    outline: none;
    border-color: var(--primary-black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.badge {
    padding: 0.4rem 0.8rem;
    font-size: 0.75rem;
    border-radius: 20px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: inline-block;
}

.badge-sale {
    background: var(--primary-black);
    color: var(--primary-white);
}

.badge-swap {
    background: #eeeeee;
    color: var(--primary-black);
}

.badge-available {
    background: #f5f5f5;
    color: var(--text-light);
    border: 1px solid var(--border-light);
}

/* Grid layout for tickets */
.ticket-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

/* --- MOBILE OPTIMIZATION --- */

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    header {
        padding: 1rem 0;
    }

    header nav {
        flex-direction: column;
        gap: 1.5rem;
    }

    .header-logo img {
        height: 50px;
    }

    .nav-links {
        width: 100%;
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-links li {
        text-align: center;
    }

    .nav-links a {
        font-size: 0.75rem;
        letter-spacing: 0.5px;
    }

    .ticket-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .card {
        padding: 1.5rem;
    }

    h2 {
        font-size: 2rem !important;
        line-height: 1.2;
    }

    .btn {
        width: 100%;
        text-align: center;
        padding: 0.8rem 1rem;
    }
}