/* RESET & BASE LAYOUT */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-surface-off);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* CONTAINER */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* GRID SYSTEM */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.gap-1 {
    gap: var(--spacing-sm);
}

.gap-2 {
    gap: var(--spacing-md);
}

.gap-3 {
    gap: var(--spacing-lg);
}

/* ALIGNMENT */
.align-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.d-flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

/* SPACING UTILS */
.py-4 {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.my-4 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

/* TOPBAR */
.topbar {
    background-color: var(--color-brand-dark);
    color: var(--color-surface-white);
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    font-size: 0.85rem;
    position: relative;
    z-index: 1001;
}

.topbar-container {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.topbar-info {
    display: flex;
    gap: var(--spacing-lg);
}

.topbar-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.9;
}

/* NAVBAR */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    height: var(--header-height);
    display: flex;
    align-items: center;
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    transition: all var(--transition-fast);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 48px;
    width: auto;
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-brand);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* FOOTER */
.footer {
    background: var(--color-brand-dark);
    color: var(--color-text-light);
    padding: 80px 0 40px;
    font-size: 0.95rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    color: var(--color-surface-white);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-surface-white);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* RESPONSIVE LAYOUT adjustments will go in responsive.css */