:root {
    --primary-red: #ff0033;
    --bg-dark: #0f0f0f;
    --card-bg: #1a1a1a;
    --text-main: #ffffff;
    --text-secondary: #a0a0a0;
    --header-height: 70px;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(15, 15, 15, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.brand {
    display: flex;
    align-items: center;
    cursor: pointer;
    text-decoration: none;
}

.brand h1 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(45deg, #fff, #ddd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.brand span {
    color: var(--primary-red);
    -webkit-text-fill-color: var(--primary-red);
}

.btn-add {
    background-color: var(--primary-red);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(255, 0, 51, 0.3);
    font-family: 'Poppins', sans-serif;
}

.btn-add:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 0, 51, 0.5);
    background-color: #d6002b;
}

/* --- Common UI --- */
.container {
    padding: 20px;
}

.btn-primary {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-red);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(255, 0, 51, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 0, 51, 0.5);
}

.btn-back {
    display: inline-block;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.2s;
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.2);
}