/* Modern Design System & Premium UI */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #ea580c;
    /* Orange 600 - Balanced */
    --primary-hover: #c2410c;
    /* Orange 700 - Darker for hover */
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --glass-bg: rgba(255, 255, 255, 0.95);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --radius-lg: 16px;
    --radius-md: 12px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    padding-top: 70px;
    /* Space for fixed header */
    padding-bottom: 80px;
    /* Space for bottom nav on mobile */
}

/* Typography & General */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-main);
}

a {
    text-decoration: none;
}

/* Navbar (Desktop) */
.navbar {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color) !important;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-muted) !important;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color) !important;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    /* Subtle lift effect */
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    padding: 1rem 1.5rem;
}

/* Buttons */
.btn {
    border-radius: var(--radius-md);
    padding: 0.6rem 1.2rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

/* Form Controls */
.form-control {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    padding: 0.75rem 0;
    z-index: 1000;
    box-shadow: 0 -4px 6px -1px rgb(0 0 0 / 0.05);
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    gap: 4px;
}

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

.mobile-nav-item svg {
    width: 24px;
    height: 24px;
}

/* Desktop Only / Mobile Only Utilities */
@media (min-width: 992px) {
    .mobile-bottom-nav {
        display: none;
    }

    body {
        padding-bottom: 0;
    }
}

@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--card-bg);
        padding: 1rem;
        border-radius: var(--radius-md);
        margin-top: 0.5rem;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
    }
}