:root {
    --primary: #FF6600;
    --primary-dark: #cc5200;
    --primary-light: #ff8533;
    --text-dark: #1a1a1a;
    --text-medium: #666666;
    --text-light: #999999;
    --bg-page: #f8f9fa;
    --bg-card: #ffffff;
    --success: #2ecc71;
    --warning: #f1c40f;
    --danger: #e74c3c;
    --radius: 16px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-page);
    color: var(--text-dark);
    line-height: 1.5;
    padding-bottom: 80px; /* Space for nav */
    overflow-x: hidden;
}

#app {
    max-width: 600px;
    margin: 0 auto;
    min-height: 100vh;
}

/* Utilities */
.hidden { display: none !important; }
.container { padding: 20px; }
.text-center { text-align: center; }
.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1.1rem;
    width: 100%;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
    transition: transform 0.2s;
}
.btn-primary:active { transform: scale(0.98); }

.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

h1 { font-size: 28px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
h2 { font-size: 22px; font-weight: 600; margin-bottom: 16px; }
p { color: var(--text-medium); margin-bottom: 16px; }

/* Navigation */
#bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: white;
    display: flex;
    justify-content: space-around;
    padding: 12px 0;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.05);
    z-index: 100;
}

.nav-item {
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-light); /* Inactive color */
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
}

.nav-item.active {
    color: var(--primary);
}

.nav-item .material-symbols-rounded {
    font-size: 24px;
    margin-bottom: 4px;
}