/* ============================================================
   NAVBAR — Fixed top bar
   ============================================================ */

/* Main navbar — fixed at top with glass effect */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-sticky);
    background: rgba(244, 247, 251, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(27, 42, 74, 0.08);
    transition: all var(--transition-normal);
    padding: var(--space-3) 0;
    box-shadow: var(--shadow-xs);
}

/* Dark mode navbar */
[data-theme="dark"] .navbar {
    background: rgba(22, 28, 40, 0.95);
    border-bottom: 1px solid rgba(115, 150, 200, 0.1);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

/* Navbar when scrolled — tighter padding, stronger shadow */
.navbar.scrolled {
    padding: var(--space-2) 0;
    box-shadow: var(--shadow-md);
}

/* Inner container for navbar content */
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

/* Logo — brand name with leaf icon */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: var(--font-weight-light);
    letter-spacing: 0.08em;
    color: var(--color-primary);
    text-transform: uppercase;
    flex-shrink: 0;
    transition: all var(--transition-normal);
}
.logo:hover { color: var(--color-secondary); transform: translateY(-1px); }
.logo i { font-size: 1.2rem; }

/* Desktop nav links — horizontal inline menu */
.nav-menu {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    flex: 1;
    justify-content: center;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-main);
    padding: var(--space-2) var(--space-3);
    position: relative;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

/* Underline animation on hover/active */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-secondary), var(--color-accent));
    transform: translateX(-50%);
    transition: width var(--transition-normal);
}
.nav-link:hover::after,
.nav-link.active::after { width: 70%; }
.nav-link:hover,
.nav-link.active { color: var(--color-primary); }

/* Right-side action buttons */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

/* Theme, search, and menu toggle buttons */
.theme-toggle, .search-toggle, .menu-toggle {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: 1rem;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
}
.theme-toggle:hover, .search-toggle:hover, .menu-toggle:hover {
    background: rgba(27, 42, 74, 0.08);
    color: var(--color-accent);
    transform: scale(1.1);
}

/* Menu toggle — hidden on desktop, shown on mobile via responsive.css */
.menu-toggle { display: none; }

/* Dark mode action buttons */
[data-theme="dark"] .theme-toggle,
[data-theme="dark"] .search-toggle,
[data-theme="dark"] .menu-toggle { color: var(--color-secondary); }

/* ============================================================
   SEARCH BAR — Drops down below navbar
   ============================================================ */

.search-container {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    border-bottom: 2px solid var(--color-secondary);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-3);
    pointer-events: none;
}
.search-container.active {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
}

/* Dark mode search bar */
[data-theme="dark"] .search-container {
    border-bottom-color: rgba(115, 150, 200, 0.3);
}

/* Wrapper to position the submit button inside the input */
.search-input-wrapper {
    position: relative;
    width: 100%;
    max-width: 550px;
    display: flex;
    align-items: center;
}

/* Search input — pill shaped */
.search-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    padding-right: var(--space-12);
    height: 3rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.95rem;
    background: var(--color-bg-surface-2);
    color: var(--color-text-main);
    transition: all 0.3s ease;
    outline: none;
}
.search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--shadow-primary);
    background: var(--color-bg-body);
}
.search-input::placeholder {
    color: var(--color-text-muted);
    font-style: italic;
    opacity: 0.7;
}

/* Search submit button — circle inside the input */
.search-submit-btn {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-primary);
    color: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}
.search-submit-btn:hover {
    background: var(--color-secondary);
    transform: translateY(-50%) scale(1.08);
}

/* Close button for the search bar */
.search-close-bar {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: var(--space-2);
    border-radius: var(--radius-full);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    flex-shrink: 0;
}
.search-close-bar:hover {
    background: var(--color-bg-surface-2);
    color: var(--color-primary);
}

/* ============================================================
   MOBILE MENU PANEL — Slides in from the right
   ============================================================ */

/* Dark backdrop behind the menu */
.menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-fixed) - 1);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.menu-overlay.active {
    display: block;
    opacity: 1;
}

/* The slide-in panel */
.mobile-menu-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 340px;
    height: 100vh;
    background: var(--color-bg-surface);
    z-index: var(--z-fixed);
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -8px 0 30px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.mobile-menu-panel.open { right: 0; }

/* Menu header — logo + close button */
.menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 2px solid var(--color-secondary);
    flex-shrink: 0;
    background: var(--color-bg-surface);
}
.menu-header .menu-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: var(--font-weight-light);
    letter-spacing: 0.08em;
    color: var(--color-primary);
    text-transform: uppercase;
}
.menu-header .menu-logo i {
    font-size: 1.1rem;
    color: var(--color-secondary);
}

/* Close button — circle with X */
.menu-close-btn {
    background: var(--color-bg-surface-2);
    border: 1px solid var(--color-border);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.menu-close-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: rotate(90deg);
}

/* Scrollable area for nav links */
.menu-links {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4) 0;
    display: flex;
    flex-direction: column;
}

/* Each nav link in the mobile menu */
.menu-links .nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-main);
    border-bottom: 1px solid var(--color-border);
    transition: all 0.2s ease;
}
.menu-links .nav-link::after { display: none; }
.menu-links .nav-link i {
    width: 22px;
    text-align: center;
    color: var(--color-secondary);
    font-size: 0.85rem;
    transition: all 0.2s ease;
}
.menu-links .nav-link:hover {
    background: var(--color-bg-surface-2);
    color: var(--color-primary);
    padding-left: var(--space-8);
}
.menu-links .nav-link:hover i {
    color: var(--color-primary);
    transform: scale(1.15);
}

/* Active nav link — highlighted with left border */
.menu-links .nav-link.active {
    background: linear-gradient(90deg, rgba(27, 42, 74, 0.08) 0%, transparent 100%);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    border-left: 3px solid var(--color-primary);
}
.menu-links .nav-link.active i { color: var(--color-primary); }