/* ============================================
   ONE LIFE DENTAL TOURISM - LAYOUT STYLES
   Containers, Grid, Header, Footer
   ============================================ */

/* ==========================================
   CONTAINERS
   ========================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.container-sm {
    max-width: var(--container-sm);
}

.container-md {
    max-width: var(--container-md);
}

.container-lg {
    max-width: var(--container-lg);
}

.container-xl {
    max-width: var(--container-xl);
}

.container-fluid {
    max-width: 100%;
}

/* ==========================================
   SECTIONS
   ========================================== */

.section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
}

.section-sm {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
}

.section-lg {
    padding-top: var(--space-32);
    padding-bottom: var(--space-32);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--space-16);
}

.section-header .overline {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.section-header h2 {
    margin-bottom: var(--space-4);
}

.section-header p {
    font-size: var(--text-lg);
    color: var(--color-gray-500);
}

/* Backgrounds */
.bg-white {
    background-color: var(--color-white);
}

.bg-off-white {
    background-color: var(--color-off-white);
}

.bg-gray {
    background-color: var(--color-gray-50);
}

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

.bg-primary-light {
    background-color: var(--color-primary-lightest);
}

.bg-dark {
    background-color: var(--color-dark);
}

.bg-gradient-primary {
    background: var(--gradient-primary);
}

.bg-gradient-hero {
    background: var(--gradient-hero);
}

.bg-gradient-dark {
    background: var(--gradient-dark);
}

/* ==========================================
   GRID SYSTEM
   ========================================== */

.grid {
    display: grid;
    gap: var(--space-8);
}

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

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

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

.grid-auto-fit {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-auto-fit-lg {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.gap-4 {
    gap: var(--space-4);
}

.gap-6 {
    gap: var(--space-6);
}

.gap-8 {
    gap: var(--space-8);
}

.gap-12 {
    gap: var(--space-12);
}

/* ==========================================
   FLEXBOX UTILITIES
   ========================================== */

.flex {
    display: flex;
}

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

.flex-wrap {
    flex-wrap: wrap;
}

.items-start {
    align-items: flex-start;
}

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

.items-end {
    align-items: flex-end;
}

.justify-start {
    justify-content: flex-start;
}

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

.justify-end {
    justify-content: flex-end;
}

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

.flex-1 {
    flex: 1;
}

/* ==========================================
   HEADER / NAVIGATION
   ========================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: var(--z-fixed);
    transition: all var(--transition-base) var(--ease-in-out-cubic);
}

.header-transparent {
    background: transparent;
}

.header-scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: var(--glass-blur);
    box-shadow: var(--shadow-md);
    height: var(--header-height-scrolled);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: var(--z-fixed);
}

.logo img {
    height: 60px;
    width: auto;
}

.logo-text {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-white);
    transition: color var(--transition-base);
}

.header-scrolled .logo-text {
    color: var(--color-primary-darker);
}

.nav-main {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    position: relative;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-white);
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.header-scrolled .nav-link {
    color: var(--color-gray-700);
}

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

.header-scrolled .nav-link:hover {
    color: var(--color-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-gold);
    transition: width var(--transition-base) var(--ease-out-expo);
}

.nav-link:hover::after {
    width: calc(100% - var(--space-8));
}

.nav-item {
    position: relative;
}

.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 220px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-3);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base) var(--ease-out-expo);
    pointer-events: none;
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.nav-dropdown-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-dropdown-link:hover {
    background: var(--color-primary-lightest);
    color: var(--color-primary-darker);
}

.header-cta {
    margin-left: var(--space-4);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 6px;
    z-index: var(--z-fixed);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-base);
}

.header-scrolled .menu-toggle span {
    background: var(--color-gray-800);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 1280px) {
    .nav-link {
        padding: var(--space-3);
        font-size: var(--text-xs);
    }
}

@media (max-width: 1024px) {

    .grid-4,
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .nav-main,
    .header-cta {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    .container {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .section {
        padding-top: var(--space-12);
        padding-bottom: var(--space-12);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}