:root {
    --nav-height: 72px;
    --nav-height-mobile: 64px;
    --nav-bg: rgba(248, 247, 244, 0.97);
    --nav-backdrop: blur(12px) saturate(180%);
    --nav-border: rgba(217, 215, 211, 0.4);
    --nav-text: #1F1F1F;
    --nav-text-muted: #6B6B6B;
    --nav-accent: #D6A040;
    --nav-accent-hover: #B8922E;
    --nav-accent-soft: rgba(214, 160, 64, 0.1);
    --nav-shadow: 0 4px 20px rgba(31, 31, 31, 0.04);
    --nav-shadow-solid: 0 4px 30px rgba(31, 31, 31, 0.08);
    --nav-transition: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   NAVBAR BASE
   ======================================== */
.site-navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    background: var(--nav-bg);
    -webkit-backdrop-filter: var(--nav-backdrop);
    backdrop-filter: var(--nav-backdrop);
    border-bottom: 1px solid var(--nav-border);
    box-shadow: var(--nav-shadow);
    transition: background 0.3s var(--nav-transition),
                box-shadow 0.3s var(--nav-transition);
}

.site-navbar.is-solid {
    background: rgba(248, 247, 244, 0.99);
    box-shadow: var(--nav-shadow-solid);
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: var(--nav-height);
    gap: 1.5rem;
}

body.no-scroll {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

/* ========================================
   BRAND / LOGO
   ======================================== */
.nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--nav-text);
    font-family: var(--font-family-primary, "Montserrat", sans-serif);
    font-weight: 700;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: opacity 0.2s ease;
    flex-shrink: 0;
    grid-column: 1;
    justify-self: start;
    z-index: 10;
}

.nav-brand:hover {
    opacity: 0.85;
}

.nav-brand__logo {
    height: 44px;
    width: auto;
    object-fit: contain;
}

.nav-brand__text {
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ========================================
   HAMBURGER TOGGLE (MOBILE)
   ======================================== */
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    border-radius: 12px;
    transition: background 0.2s var(--nav-transition);
    position: relative;
    z-index: 10;
    align-items: center;
    justify-content: center;
    grid-column: 3;
    justify-self: end;
    -webkit-tap-highlight-color: transparent;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
    background: rgba(0, 0, 0, 0.05);
    outline: none;
}

.nav-toggle:active {
    background: rgba(0, 0, 0, 0.08);
    transform: scale(0.96);
}

.nav-toggle__line {
    position: absolute;
    width: 22px;
    height: 2px;
    background: var(--nav-text);
    border-radius: 2px;
    left: 50%;
    transform: translateX(-50%);
    transition: transform 0.3s var(--nav-transition),
                opacity 0.2s var(--nav-transition),
                top 0.3s var(--nav-transition);
}

.nav-toggle__line:nth-child(1) {
    top: 14px;
}

.nav-toggle__line:nth-child(2) {
    top: 21px;
}

.nav-toggle__line:nth-child(3) {
    top: 28px;
}

/* Hamburger → X animation */
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
    top: 21px;
    transform: translateX(-50%) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
    opacity: 0;
    transform: translateX(-50%) scaleX(0);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
    top: 21px;
    transform: translateX(-50%) rotate(-45deg);
}

/* ========================================
   NAV LINKS (DESKTOP)
   ======================================== */
.nav-links {
    display: flex;
    align-items: center;
    justify-content: center;
    grid-column: 2;
    justify-self: center;
}

.nav-close {
    display: none;
    border: none;
    background: transparent;
    color: inherit;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    padding: 0.25rem;
}

.nav-close:hover {
    color: var(--nav-accent);
}

.nav-close span {
    display: block;
    line-height: 1;
    color: var(--nav-accent);
}

.nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.625rem 0.875rem;
    color: var(--nav-text);
    font-family: var(--font-family-secondary, "Crimson Pro", serif);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border-radius: 10px;
    transition: color 0.2s var(--nav-transition),
                background 0.2s var(--nav-transition);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--nav-accent);
    background: var(--nav-accent-soft);
    outline: none;
}

/* ========================================
   DROPDOWN CARET
   ======================================== */
.nav-caret {
    width: 0;
    height: 0;
    border: 5px solid transparent;
    border-top-color: currentColor;
    border-bottom-width: 0;
    margin-top: 2px;
    transition: transform 0.25s var(--nav-transition);
}

.has-dropdown:hover .nav-caret,
.has-dropdown:focus-within .nav-caret,
.has-dropdown.open .nav-caret {
    transform: rotate(180deg);
}

/* ========================================
   DROPDOWN PANEL (DESKTOP)
   ======================================== */
.dropdown-panel {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 300px;
    max-width: 380px;
    background: #FFFFFF;
    color: var(--nav-text);
    border-radius: 16px;
    border: 1px solid var(--nav-border);
    box-shadow: 0 16px 48px rgba(31, 31, 31, 0.12),
                0 4px 12px rgba(31, 31, 31, 0.06);
    padding: 0.75rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s var(--nav-transition),
                transform 0.25s var(--nav-transition),
                visibility 0.25s var(--nav-transition);
    pointer-events: none;
}

.has-dropdown:hover > .dropdown-panel,
.has-dropdown:focus-within > .dropdown-panel,
.has-dropdown.open > .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.dropdown-grid {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.dropdown-link {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.75rem 0.875rem;
    border-radius: 10px;
    color: inherit;
    text-decoration: none;
    background: transparent;
    border: 1px solid transparent;
    transition: background 0.2s var(--nav-transition),
                border-color 0.2s var(--nav-transition);
}

.dropdown-link:hover,
.dropdown-link:focus-visible {
    background: var(--nav-accent-soft);
    border-color: rgba(214, 160, 64, 0.25);
    outline: none;
}

.dropdown-title {
    font-family: var(--font-family-primary, "Montserrat", sans-serif);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.01em;
    color: var(--nav-text);
}

.dropdown-subtitle {
    color: var(--nav-text-muted);
    font-family: var(--font-family-secondary, "Crimson Pro", serif);
    font-size: 0.85rem;
    line-height: 1.4;
}

.dropdown-empty {
    padding: 0.75rem;
    color: var(--nav-text-muted);
    font-size: 0.875rem;
    text-align: center;
}

/* ========================================
   RESPONSIVE: TABLET
   ======================================== */
@media (max-width: 1024px) {
    .nav-inner {
        gap: 1rem;
    }

    .nav-link {
        padding: 0.5rem 0.65rem;
        font-size: 0.9rem;
    }
}

/* ========================================
   RESPONSIVE: MOBILE
   ======================================== */
@media (max-width: 900px) {
    :root {
        --nav-height: var(--nav-height-mobile);
    }

    .nav-brand__logo {
        height: 38px;
    }

    .nav-brand__text {
        font-size: 0.95rem;
    }

    .nav-toggle {
        display: flex;
        width: 48px;
        height: 48px;
        border: 1px solid rgba(31, 31, 31, 0.12);
        background: rgba(255, 255, 255, 0.7);
        box-shadow: 0 8px 24px rgba(31, 31, 31, 0.1);
    }

    .nav-toggle[aria-expanded="true"] {
        border-color: rgba(214, 160, 64, 0.5);
        background: rgba(214, 160, 64, 0.12);
    }

    .nav-toggle__line {
        width: 24px;
        height: 2px;
    }

    .nav-toggle__line:nth-child(1) {
        top: 15px;
    }

    .nav-toggle__line:nth-child(2) {
        top: 23px;
    }

    .nav-toggle__line:nth-child(3) {
        top: 31px;
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1),
    .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
        top: 23px;
    }

    /* Mobile Menu Panel */
    .nav-links {
        position: fixed;
        inset: 0;
        width: 100vw;
        height: 100dvh;
        max-width: none;
        max-height: none;
        background: linear-gradient(180deg, #1a1a1a 0%, #242424 100%);
        color: #F8F7F4;
        transform: translateX(100%);
        transition: transform 0.35s var(--nav-transition);
        padding: calc(var(--nav-height-mobile) + 1.5rem) 1.5rem 2rem;
        -webkit-backdrop-filter: blur(20px);
        backdrop-filter: blur(20px);
        overflow-y: auto;
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
        z-index: 1001;
        display: block;
        box-sizing: border-box;
    }

    .nav-close {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 1rem;
        right: 1rem;
        width: 44px;
        height: 44px;
        border-radius: 12px;
        border: 1px solid rgba(248, 247, 244, 0.2);
        background: rgba(248, 247, 244, 0.08);
        color: #F8F7F4;
        font-size: 1.8rem;
        transition: background 0.2s var(--nav-transition),
                    border-color 0.2s var(--nav-transition),
                    transform 0.2s var(--nav-transition);
    }

    .nav-close:hover,
    .nav-close:focus-visible {
        background: rgba(214, 160, 64, 0.2);
        border-color: rgba(214, 160, 64, 0.4);
        outline: none;
    }

    .nav-close:active {
        transform: scale(0.96);
    }

    .nav-links.open {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0.375rem;
        max-width: 100%;
        width: 100%;
        margin: 0 auto;
    }

    .nav-item {
        border-bottom: 1px solid rgba(248, 247, 244, 0.08);
        width: 100%;
    }

    .nav-item:last-child {
        border-bottom: none;
    }

    .nav-link {
        color: #F8F7F4;
        width: 100%;
        padding: 1rem 0.5rem;
        font-size: 1.1rem;
        border-radius: 8px;
        justify-content: space-between;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
        background: rgba(248, 247, 244, 0.06);
        color: var(--nav-accent);
    }

    .nav-caret {
        border-top-color: rgba(248, 247, 244, 0.5);
    }

    .has-dropdown.open .nav-caret {
        border-top-color: var(--nav-accent);
    }

    /* Mobile Dropdown */
    .has-dropdown > .dropdown-panel {
        position: static;
        opacity: 0;
        visibility: hidden;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transform: none;
        background: rgba(248, 247, 244, 0.04);
        border: none;
        border-radius: 12px;
        margin: 0.5rem 0;
        padding: 0;
        box-shadow: none;
        min-width: unset;
        max-width: unset;
        box-sizing: border-box;
        transition: max-height 0.35s var(--nav-transition),
                    opacity 0.25s var(--nav-transition),
                    padding 0.35s var(--nav-transition);
        pointer-events: none;
    }

    .has-dropdown.open > .dropdown-panel {
        opacity: 1;
        visibility: visible;
        max-height: 500px;
        padding: 0.5rem;
        pointer-events: auto;
        margin-left: 270px;
    }

    .dropdown-grid {
        gap: 0.25rem;
        width: 100%;
        align-items: stretch;
    }

    .dropdown-link {
        padding: 0.875rem 1rem;
        background: rgba(248, 247, 244, 0.03);
        border-radius: 10px;
        border: 1px solid rgba(248, 247, 244, 0.06);
        width: 100%;
        box-sizing: border-box;
        align-self: stretch;
    }

    .dropdown-link:hover,
    .dropdown-link:focus-visible {
        background: rgba(214, 160, 64, 0.15);
        border-color: rgba(214, 160, 64, 0.3);
    }

    .dropdown-title {
        color: #F8F7F4;
        font-size: 0.95rem;
    }

    .dropdown-subtitle {
        color: rgba(248, 247, 244, 0.6);
        font-size: 0.85rem;
    }

    .dropdown-empty {
        color: rgba(248, 247, 244, 0.5);
    }
}

/* ========================================
   RESPONSIVE: SMALL MOBILE
   ======================================== */
@media (max-width: 400px) {
    .nav-brand__text {
        display: none;
    }

    .nav-links {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .nav-link {
        font-size: 1rem;
        padding: 0.875rem 0.25rem;
    }
}

/* ========================================
   ACCESSIBILITY & REDUCED MOTION
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .site-navbar,
    .nav-toggle,
    .nav-toggle__line,
    .nav-link,
    .nav-caret,
    .dropdown-panel,
    .dropdown-link,
    .nav-links {
        transition-duration: 0.01ms !important;
    }
}

/* Safe area for iOS devices */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    @media (max-width: 900px) {
        .nav-links {
            padding-bottom: calc(2rem + env(safe-area-inset-bottom));
        }
    }
}