/*
 * Fieldcraft Digital 2.0
 * Header & Navigation Styles
 */

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

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
}

.site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    padding: var(--space-3) 0;
}

/* Light header for dark hero sections */
.site-header.header-light .nav-link,
.site-header.header-light .site-logo {
    color: white;
}

.site-header.header-light .nav-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.15);
}

.site-header.header-light .nav-link.is-active {
    color: var(--color-accent-400);
}

.site-header.header-light.is-scrolled .nav-link,
.site-header.header-light.is-scrolled .site-logo {
    color: var(--color-dark-900);
}

.site-header.header-light.is-scrolled .nav-link:hover {
    color: var(--color-dark-900);
    background: var(--color-neutral-100);
}

.site-header.header-light.is-scrolled .nav-link.is-active {
    color: var(--color-primary-600);
}

.site-header.header-light .menu-toggle {
    color: white;
}

.site-header.header-light.is-scrolled .menu-toggle {
    color: var(--color-dark-900);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

/* ========================================
   LOGO
   ======================================== */

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-dark-900);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.site-logo:hover {
    opacity: 0.8;
}

.logo-mark {
    width: 40px;
    height: 40px;
    background: linear-gradient(
        135deg,
        var(--color-primary-600) 0%,
        var(--color-primary-700) 100%
    );
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 2px 8px rgba(99, 60, 255, 0.25);
}

.logo-mark svg {
    width: 24px;
    height: 24px;
}

.logo-text {
    display: none;
}

@media (min-width: 480px) {
    .logo-text {
        display: block;
    }
}

/* ========================================
   DESKTOP NAVIGATION
   ======================================== */

.nav-desktop {
    display: none;
    align-items: center;
    gap: var(--space-8);
}

@media (min-width: 1024px) {
    .nav-desktop {
        display: flex;
    }
}

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

.nav-link {
    display: block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-dark-700);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-dark-900);
    background: var(--color-neutral-100);
}

.nav-link.is-active {
    color: var(--color-primary-600);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* ========================================
   MOBILE MENU TOGGLE
   ======================================== */

.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    color: var(--color-dark-900);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.menu-toggle:hover {
    background: var(--color-neutral-100);
}

.site-header.header-light .menu-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.site-header.header-light.is-scrolled .menu-toggle:hover {
    background: var(--color-neutral-100);
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }
}

/* ========================================
   DRAWER OVERLAY
   ======================================== */

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 998;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.3s ease,
        visibility 0.3s ease;
}

.drawer-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   DRAWER (SLIDE-IN FROM RIGHT)
   ======================================== */

.drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    width: 100%;
    max-width: 320px;
    background: #ffffff;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.drawer.is-open {
    transform: translateX(0);
}

@media (min-width: 1024px) {
    .drawer,
    .drawer-overlay {
        display: none;
    }
}

/* Drawer Header */
.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-neutral-200);
}

.drawer-header .site-logo {
    color: var(--color-dark-900);
}

.drawer-header .logo-text {
    display: block;
}

.drawer-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    color: var(--color-dark-600);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.drawer-close:hover {
    background: var(--color-neutral-100);
    color: var(--color-dark-900);
}

/* Drawer Body */
.drawer-body {
    flex: 1;
    padding: var(--space-4) 0;
}

.drawer-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

.drawer-link {
    display: block;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-dark-700);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.drawer-link:hover {
    background: var(--color-neutral-50);
    color: var(--color-dark-900);
}

.drawer-link.is-active {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

/* Drawer Footer */
.drawer-footer {
    padding: var(--space-5);
    border-top: 1px solid var(--color-neutral-200);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

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