/**
 * GlobalTrade OS - Theme Layout & Interactive Component Styling
 */

/* Topbar */
.gt-topbar {
    background-color: var(--gt-color-primary-900);
    color: var(--gt-color-gray-300);
    font-size: var(--gt-text-xs);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.375rem 0;
}

.gt-topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gt-topbar-links, .gt-topbar-tools {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    list-style: none;
}

.gt-topbar-link {
    color: var(--gt-color-gray-300);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.gt-topbar-link:hover {
    color: var(--gt-color-white);
}

.gt-topbar-badge {
    background: rgba(13, 148, 136, 0.2);
    color: var(--gt-color-teal-100);
    padding: 0.15rem 0.5rem;
    border-radius: var(--gt-radius-full);
    font-size: 0.6875rem;
    font-weight: 600;
}

/* Header & Main Nav */
.gt-header {
    background-color: var(--gt-color-white);
    border-bottom: 1px solid var(--gt-color-border);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--gt-shadow-xs);
}

.gt-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--gt-header-height);
    gap: 1.5rem;
}

.gt-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--gt-color-primary-900);
    letter-spacing: -0.02em;
}

.gt-brand-logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--gt-color-primary-800) 0%, var(--gt-color-accent) 100%);
    border-radius: var(--gt-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gt-color-white);
    font-size: 1.1rem;
    font-weight: 900;
}

.gt-brand-sub {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--gt-color-accent);
    display: block;
    font-weight: 700;
}

.gt-nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}

.gt-nav-item {
    position: relative;
}

.gt-nav-link {
    font-size: var(--gt-text-sm);
    font-weight: 600;
    color: var(--gt-color-gray-700);
    padding: 0.5rem 0;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.gt-nav-link:hover, .gt-nav-item.current-menu-item > .gt-nav-link {
    color: var(--gt-color-accent);
}

.gt-header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Mobile Toggle */
.gt-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--gt-color-gray-700);
}

@media (max-width: 991px) {
    .gt-nav-menu { display: none; }
    .gt-mobile-toggle { display: block; }
    .gt-header-actions .gt-btn-rfq { display: none; }
}

/* Mobile Nav Drawer */
.gt-mobile-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: var(--gt-color-white);
    box-shadow: var(--gt-shadow-xl);
    z-index: 100;
    padding: 1.5rem;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.gt-mobile-drawer.is-open {
    right: 0;
}

.gt-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 99;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.gt-drawer-overlay.is-active {
    opacity: 1;
    pointer-events: auto;
}

.gt-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--gt-color-border);
    padding-bottom: 1rem;
}

.gt-drawer-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gt-color-gray-600);
}

.gt-drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gt-drawer-nav a {
    font-weight: 600;
    color: var(--gt-color-gray-800);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gt-color-gray-100);
}

/* Hero Section */
.gt-hero-section {
    background: linear-gradient(135deg, var(--gt-color-primary-900) 0%, var(--gt-color-primary-800) 60%, var(--gt-color-primary-700) 100%);
    color: var(--gt-color-white);
    padding: 4.5rem 0 5rem 0;
    position: relative;
    overflow: hidden;
}

.gt-hero-content {
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
}

.gt-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.875rem;
    background: rgba(13, 148, 136, 0.2);
    border: 1px solid rgba(13, 148, 136, 0.4);
    border-radius: var(--gt-radius-full);
    font-size: var(--gt-text-xs);
    font-weight: 700;
    color: var(--gt-color-teal-100);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.gt-hero-title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
}

.gt-hero-title span {
    color: var(--gt-color-teal-500);
}

.gt-hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--gt-color-gray-300);
    max-width: 680px;
    margin: 0 auto 2.5rem auto;
    line-height: 1.6;
}

/* B2B Hero Search Bar */
.gt-hero-search-box {
    background: var(--gt-color-white);
    border-radius: var(--gt-radius-lg);
    box-shadow: var(--gt-shadow-xl);
    padding: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    max-width: 820px;
    margin: 0 auto;
}

.gt-search-select {
    width: 220px;
    border: none;
    border-right: 1px solid var(--gt-color-gray-200);
    padding: 0.75rem 1rem;
    font-size: var(--gt-text-sm);
    color: var(--gt-color-gray-700);
    font-weight: 600;
    background-color: transparent;
    cursor: pointer;
}

.gt-search-select:focus {
    outline: none;
}

.gt-search-input {
    flex: 1;
    border: none;
    padding: 0.75rem 1rem;
    font-size: var(--gt-text-base);
    color: var(--gt-color-gray-900);
}

.gt-search-input:focus {
    outline: none;
}

@media (max-width: 768px) {
    .gt-hero-search-box {
        flex-direction: column;
        padding: 0.75rem;
    }
    .gt-search-select {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--gt-color-gray-200);
    }
    .gt-hero-search-box .gt-btn {
        width: 100%;
    }
}

/* Stats Strip */
.gt-stats-strip {
    background: var(--gt-color-white);
    border-bottom: 1px solid var(--gt-color-border);
    padding: 2.25rem 0;
}

.gt-stat-item {
    text-align: center;
    border-right: 1px solid var(--gt-color-gray-200);
}

.gt-stat-item:last-child {
    border-right: none;
}

@media (max-width: 640px) {
    .gt-stat-item {
        border-right: none;
        border-bottom: 1px solid var(--gt-color-gray-200);
        padding-bottom: 1rem;
    }
    .gt-stat-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
}

.gt-stat-value {
    font-size: var(--gt-text-3xl);
    font-weight: 800;
    color: var(--gt-color-primary-900);
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 0.25rem;
}

.gt-stat-label {
    font-size: var(--gt-text-xs);
    font-weight: 600;
    color: var(--gt-color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Dual Portal Cards */
.gt-portals-section {
    padding: 4.5rem 0;
}

.gt-portal-card {
    background: var(--gt-color-white);
    border: 1px solid var(--gt-color-border);
    border-radius: var(--gt-radius-xl);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--gt-shadow-sm);
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.gt-portal-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--gt-shadow-lg);
}

.gt-portal-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
}

.gt-portal-title {
    font-size: var(--gt-text-2xl);
    font-weight: 800;
    color: var(--gt-color-primary-900);
    margin: 1rem 0 0.75rem 0;
}

.gt-portal-desc {
    color: var(--gt-color-gray-600);
    font-size: var(--gt-text-sm);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.gt-portal-features {
    list-style: none;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.gt-portal-features li {
    font-size: var(--gt-text-sm);
    color: var(--gt-color-gray-700);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.gt-portal-features li::before {
    content: "✓";
    font-weight: 800;
    color: var(--gt-color-accent);
}

/* Footer */
.gt-footer {
    background-color: var(--gt-color-primary-900);
    color: var(--gt-color-gray-400);
    margin-top: auto;
    font-size: var(--gt-text-sm);
}

.gt-footer-top {
    padding: 4rem 0 3rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.gt-footer-col-title {
    color: var(--gt-color-white);
    font-size: var(--gt-text-base);
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.gt-footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.gt-footer-links a {
    color: var(--gt-color-gray-400);
    transition: color 0.2s ease;
}

.gt-footer-links a:hover {
    color: var(--gt-color-teal-500);
}

.gt-footer-bottom {
    padding: 1.5rem 0;
    font-size: var(--gt-text-xs);
}

.gt-footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}