/* ========================================
   Navigation Component
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    /* Tighter padding like Apple */
    transition: all var(--transition-base);
    background: rgba(251, 251, 253, 0.8);
    /* Apple Glass Light */
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.navbar.scrolled {
    background: rgba(251, 251, 253, 0.9);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    padding: var(--space-3) 0;
}

.navbar.scrolled .logo-korean {
    color: var(--color-primary);
    text-shadow: none;
}

.navbar.scrolled .logo-english {
    color: var(--color-text-muted);
}

.navbar.scrolled .nav-menu a:not(.nav-cta) {
    color: var(--color-text);
    text-shadow: none;
}

.navbar.scrolled .nav-menu a:not(.nav-cta):hover {
    color: var(--color-primary);
}

.navbar.scrolled .mobile-menu-btn span {
    background: var(--color-primary);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    text-decoration: none;
}

.logo-korean {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1d1d1f;
    letter-spacing: -0.02em;
    text-shadow: none;
}

.logo-english {
    font-size: 0.65rem;
    color: #86868b;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Scrolled state logo colors */
.navbar.scrolled .logo-korean {
    color: #2d4a35;
    text-shadow: none;
}

.navbar.scrolled .logo-english {
    color: #666;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-7);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu a:not(.nav-cta) {
    font-weight: 500;
    font-size: 13px;
    color: #1d1d1f;
    position: relative;
    padding: var(--space-2) 0;
    text-shadow: none;
    transition: color var(--transition-fast);
    letter-spacing: -0.01em;
}

.nav-menu a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #ffffff;
    transition: width var(--transition-base) var(--ease-out);
}

.navbar.scrolled .nav-menu a:not(.nav-cta)::after {
    background: var(--color-primary-gradient);
}

.nav-menu a:not(.nav-cta):hover::after {
    width: 100%;
}

/* Premium CTA Button */
.nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #c9a962 0%, #f0d78c 50%, #c9a962 100%);
    background-size: 200% 200%;
    color: #1a1a1a;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 14px;
    line-height: 1;
    white-space: nowrap;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(201, 169, 98, 0.4);
    text-shadow: none;
    position: relative;
    overflow: hidden;
    animation: ctaShimmer 3s ease-in-out infinite;
}

.nav-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.nav-cta:hover::before {
    left: 100%;
}

.nav-cta:hover {
    background: linear-gradient(135deg, #d4b56d 0%, #f5e0a0 50%, #d4b56d 100%);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 25px rgba(201, 169, 98, 0.5);
}

.nav-cta:active {
    transform: translateY(0) scale(1);
}

/* Scrolled state CTA */
.navbar.scrolled .nav-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(45, 74, 53, 0.3);
    animation: ctaPulse 2s ease-in-out infinite;
}

.navbar.scrolled .nav-cta:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    box-shadow: 0 8px 30px rgba(45, 74, 53, 0.4);
    animation: none;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: #ffffff;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

/* ===== Responsive Mobile Navigation ===== */
@media (max-width: 768px) {

    /* Navigation - Mobile Off-Canvas Menu */
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(250, 248, 245, 0.98) 100%);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-8);
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        padding: var(--space-10);
    }

    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease;
    }

    .nav-menu.active li {
        opacity: 1;
        transform: translateY(0);
    }

    .nav-menu.active li:nth-child(1) {
        transition-delay: 0.1s;
    }

    .nav-menu.active li:nth-child(2) {
        transition-delay: 0.15s;
    }

    .nav-menu.active li:nth-child(3) {
        transition-delay: 0.2s;
    }

    .nav-menu.active li:nth-child(4) {
        transition-delay: 0.25s;
    }

    .nav-menu.active li:nth-child(5) {
        transition-delay: 0.3s;
    }

    .nav-menu.active li:nth-child(6) {
        transition-delay: 0.35s;
    }

    /* Mobile menu links - Premium Styling */
    .nav-menu a:not(.nav-cta) {
        color: var(--color-text) !important;
        text-shadow: none !important;
        font-size: var(--font-size-xl);
        font-weight: var(--font-weight-bold);
        padding: var(--space-3) var(--space-6);
        display: block;
        width: 100%;
        border-radius: var(--radius-md);
        transition: all 0.3s ease;
    }

    .nav-menu a:not(.nav-cta):hover {
        color: var(--color-primary) !important;
        background: rgba(45, 74, 53, 0.08);
    }

    .nav-menu a:not(.nav-cta)::after {
        display: none;
    }

    .nav-menu .nav-cta {
        margin-top: var(--space-4);
        padding: var(--space-4) var(--space-8) !important;
        font-size: var(--font-size-md) !important;
        width: auto;
        display: inline-flex;
    }

    .mobile-menu-btn {
        display: flex;
        z-index: 1000;
        padding: var(--space-3);
        cursor: pointer;
        background: none;
        border: none;
    }
}