/* ============================================
   SHARED STYLES — Nav, Footer, Buttons, Resets
   ============================================
   Loaded on every page via base.html.
   Page-specific styles go in each page's own <style> block.
   ============================================ */

/* Resets and base typography */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 40px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-medium);
    transition: all 0.3s var(--transition-smooth);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.logo img {
    height: 36px;
    width: auto;
}

.logo-fallback {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent-gradient-start), var(--accent-gradient-end));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--brand-primary);
}

.nav-cta {
    background: linear-gradient(135deg, var(--accent-gradient-start), var(--accent-gradient-end));
    color: white;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 58, 138, 0.25);
}

/* Insights Nav Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > a {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-dropdown > a::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    margin-top: 1px;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: white;
    border: 1px solid var(--border-medium);
    border-radius: 12px;
    padding: 8px;
    min-width: 240px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
    z-index: 200;
}

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

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: background 0.15s;
}

.dropdown-menu a:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.dropdown-menu a.active-industry {
    background: var(--brand-primary-bg);
    color: var(--brand-primary);
}

.dropdown-menu a.disabled-link {
    opacity: 0.6;
    pointer-events: none;
}

.dropdown-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.dropdown-label {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 8px 14px 4px;
}

.dropdown-divider {
    height: 1px;
    background: var(--border-medium);
    margin: 6px 0;
}

.coming-soon-tag {
    font-size: 0.65rem;
    padding: 2px 6px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    color: var(--text-tertiary);
    font-weight: 600;
    margin-left: auto;
}

.article-count {
    font-size: 0.65rem;
    padding: 2px 7px;
    background: rgba(30, 58, 138, 0.08);
    border-radius: 4px;
    color: var(--brand-primary);
    font-weight: 700;
    margin-left: auto;
}

/* Shared Button Styles */
.btn-primary {
    background: linear-gradient(135deg, var(--accent-gradient-start), var(--accent-gradient-end));
    color: white;
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(30, 58, 138, 0.3);
}

.btn-secondary {
    background: white;
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: border-color 0.2s, background 0.2s;
}

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

/* Section Base Styles */
.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--brand-accent);
    margin-bottom: 12px;
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 400;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Footer */
.footer {
    padding: 48px 40px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-medium);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-brand img {
    height: 28px;
    width: auto;
}

.footer-text {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--brand-primary);
}

/* Scroll Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--transition-smooth), transform 0.7s var(--transition-smooth);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Menu Toggle (hamburger) */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
    z-index: 101;
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s;
}

.mobile-menu-overlay.open {
    display: block;
    opacity: 1;
}

/* Mobile Menu Drawer */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 300px;
    max-width: 85vw;
    background: white;
    z-index: 999;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s var(--transition-smooth);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-medium);
}

.mobile-menu-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: background 0.15s;
}

.mobile-menu-close:hover {
    background: var(--bg-secondary);
}

.mobile-menu-links {
    flex: 1;
    padding: 12px 0;
}

.mobile-menu-links > a {
    display: block;
    padding: 14px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
}

.mobile-menu-links > a:hover,
.mobile-menu-links > a.active {
    background: var(--brand-primary-bg);
    color: var(--brand-primary);
}

/* Mobile Insights Accordion */
.mobile-insights-group {
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    margin: 4px 0;
}

.mobile-insights-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    font-family: var(--font-body);
    transition: background 0.15s, color 0.15s;
}

.mobile-insights-toggle:hover,
.mobile-insights-toggle.active {
    background: var(--brand-primary-bg);
    color: var(--brand-primary);
}

.mobile-insights-arrow {
    transition: transform 0.3s;
}

.mobile-insights-toggle.expanded .mobile-insights-arrow {
    transform: rotate(180deg);
}

.mobile-insights-submenu {
    display: none;
    padding: 0 12px 12px;
}

.mobile-insights-submenu.open {
    display: block;
}

.mobile-insights-submenu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: background 0.15s;
}

.mobile-insights-submenu a:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.mobile-menu-cta {
    padding: 16px 20px 24px;
    border-top: 1px solid var(--border-medium);
}

/* Body scroll lock when mobile menu is open */
body.mobile-menu-open {
    overflow: hidden;
}

/* Shared Responsive — nav and footer only */
@media (max-width: 768px) {
    .nav {
        padding: 14px 20px;
    }

    .nav-links {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }

    .footer {
        padding: 36px 20px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}