/* SENTINEL OT - Header & Navigation (Mobile & Desktop Island) */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: transparent;
    border-bottom: 1px solid transparent;
    z-index: 1100;
    transition: background 0.4s ease, border-color 0.4s ease;
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    position: relative;
}

.header__logo {
    font-weight: 800;
    font-size: 1.5rem;
    font-family: var(--font-sans);
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
}

.header__title-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-weight: 800;
    font-size: 1.5rem;
    font-family: var(--font-sans);
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    white-space: nowrap;
    z-index: 10;
}

.logo__text {
    color: var(--color-text-primary);
}

.logo__accent {
    background: linear-gradient(135deg, var(--color-accent) 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 15px rgba(167, 139, 250, 0.3));
    margin-left: 2px;
    font-weight: 800;
}

.nav {
    display: flex;
    position: fixed;
    inset: 0;
    background: var(--color-bg-glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    transform: translateX(100%);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.nav.active {
    transform: translateX(0);
    pointer-events: all;
}

.nav__list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
    width: 100%;
    max-width: 600px;
    padding: 0 1rem;
}

.nav__link {
    font-size: 1.5rem;
    display: block;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-accent) 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(167, 139, 250, 0.3));
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    color: var(--color-text-primary);
    padding: 0.5rem;
    position: relative;
    z-index: 1001;
}

.nav__toggle-bar {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: 0.3s;
}

.header__brand-label {
    font-size: 0.7rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    padding-right: 1.5rem;
    pointer-events: none;
}

.nav__toggle.active .nav__toggle-bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active .nav__toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav__toggle.active .nav__toggle-bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* DESKTOP DYNAMIC ISLAND MENU (PC ONLY) */
@media (min-width: 769px) {
    .nav__toggle {
        display: none !important;
    }

    .nav {
        display: block !important;
        position: fixed !important;
        top: 15px !important;
        left: 50% !important;
        right: auto !important;
        bottom: auto !important;
        transform: translateX(-50%) !important;
        margin: 0 !important;
        background: rgba(12, 12, 12, 0.65) !important;
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        border: 1px solid rgba(255, 255, 255, 0.1) !important;
        border-radius: 100px !important;
        padding: 0 !important;
        z-index: 1100 !important;
        height: 52px !important;
        width: 140px !important;
        max-width: none !important;
        overflow: visible !important; /* Allow logo to slightly overflow for a more dynamic look */
        box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
        pointer-events: auto !important;
        transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1), background 0.3s ease, border-color 0.3s ease !important;
        visibility: visible !important;
        opacity: 1 !important;
    }

    .nav::after {
        content: '' !important;
        display: block !important;
        position: absolute !important;
        top: 50% !important;
        left: 50% !important;
        transform: translate(-50%, -50%) scale(1) !important;
        width: 86px !important;
        height: 26px !important;
        background-color: #000000 !important;
        background-image: 
            radial-gradient(circle at 20px 48%, rgba(180, 240, 255, 0.9) 1px, transparent 2.5px),
            radial-gradient(circle at 20px 50%, #152844 4px, transparent 5px),
            radial-gradient(circle at 66px 50%, #111111 3px, transparent 4px) !important;
        border-radius: 20px !important;
        box-shadow: inset 0 3px 6px rgba(255, 255, 255, 0.2), inset 0 -3px 6px rgba(0, 0, 0, 1), 0 1px 2px rgba(255, 255, 255, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.95) !important;
        z-index: 10 !important;
        transition: opacity 0.4s ease, transform 0.4s ease !important;
        pointer-events: none !important;
        opacity: 1 !important;
    }

    .nav.nav--dbs-docked::after {
        opacity: 0 !important;
        transform: translate(-50%, -50%) scale(0.8) !important;
    }

    .nav:hover {
        width: 980px !important;
        transform: translateX(-50%) !important; 
        background: rgba(20, 20, 20, 0.85) !important;
        border-color: rgba(255, 255, 255, 0.25) !important;
    }

    .nav__list {
        display: flex !important;
        flex-direction: row !important;
        justify-content: center !important;
        align-items: center !important;
        gap: 2rem !important;
        width: 100% !important;
        height: 100% !important;
        margin: 0 !important;
        padding: 0 180px !important;
        position: relative !important;
        max-width: none !important;
        flex-wrap: nowrap !important;
    }

    .nav__item {
        display: flex !important;
        align-items: center !important;
        height: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
        transform: translateY(10px) scale(0.95) !important;
        flex-shrink: 0 !important;
        transition: opacity 0.3s ease 0s, transform 0.4s ease 0s, margin 0.5s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s 0.3s !important;
    }

    .nav:hover .nav__item {
        opacity: 1 !important;
        visibility: visible !important;
        transform: translateY(0) scale(1) !important;
        pointer-events: auto !important;
        transition: opacity 0.4s ease 0.15s, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.1s, margin 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0s, visibility 0s 0s !important;
    }

    .nav:hover .nav__item:nth-child(2) { 
        margin-right: 150px !important; 
    }

    .nav__link {
        font-size: 0.85rem !important;
        font-weight: 600 !important;
        letter-spacing: 0.05em !important;
        text-transform: uppercase !important;
        display: flex !important;
        align-items: center !important;
        line-height: 1 !important;
        height: 100% !important;
        white-space: nowrap !important;
        background: #e2e8f0 !important;
        -webkit-background-clip: text !important;
        background-clip: text !important;
        -webkit-text-fill-color: transparent !important;
        color: transparent !important;
        transition: opacity 0.3s ease, filter 0.3s ease !important;
        opacity: 0.6 !important;
        filter: none !important;
    }
    
    .nav__link:hover {
        opacity: 1 !important;
        filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.4)) !important;
    }
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .nav__left-actions {
        order: 3;
        margin-top: auto;
    }
    .nav__right-actions {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        order: 4;
        margin-bottom: 2rem;
    }
    .nav__location {
        font-size: 0.8rem;
        color: rgba(255, 255, 255, 0.4);
        letter-spacing: 0.15em;
        text-transform: uppercase;
        font-weight: 600;
    }

    .nav {
        flex-direction: column !important;
        gap: 3rem;
        justify-content: flex-start !important;
        padding-top: 100px;
        overflow-y: auto;
    }

    .nav__list {
        flex-direction: column !important;
        gap: 2rem;
        padding-top: 0;
        width: auto;
        order: 2;
    }

    .nav__link {
        font-size: 2.5rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.4s ease, transform 0.4s ease;
    }

    .nav.active .nav__link {
        opacity: 1;
        transform: translateY(0);
    }

    .nav.active .nav__item:nth-child(1) .nav__link { transition-delay: 0.1s; }
    .nav.active .nav__item:nth-child(2) .nav__link { transition-delay: 0.15s; }
    .nav.active .nav__item:nth-child(3) .nav__link { transition-delay: 0.2s; }
    .nav.active .nav__item:nth-child(4) .nav__link { transition-delay: 0.25s; }

    .header {
        display: none !important;
    }
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 0.4rem 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-toggle:hover {
    border-color: rgba(167, 139, 250, 0.3);
    background: rgba(255, 255, 255, 0.08);
}

.lang-toggle__option {
    display: flex;
    align-items: center;
    opacity: 0.4;
    filter: grayscale(100%);
    transition: all 0.25s ease;
    cursor: pointer;
}

.lang-toggle__option:hover, .lang-toggle__option--active {
    opacity: 1;
    filter: grayscale(0%);
    transform: scale(1.1);
}

@media (min-width: 769px) {
    .nav__left-actions,
    .nav__right-actions {
        position: absolute !important;
        top: 50% !important;
        margin: 0 !important;
        display: flex !important;
        align-items: center !important;
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }

    .nav__left-actions {
        left: 50% !important;
        transform: translate(20px, -50%) !important; 
        transition: opacity 0.3s ease 0s, left 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.4s ease 0s, visibility 0s 0.3s !important;
    }

    .nav__right-actions {
        right: 50% !important;
        transform: translate(-20px, -50%) !important; 
        transition: opacity 0.3s ease 0s, right 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.4s ease 0s, visibility 0s 0.3s !important;
    }
    
    .nav:hover .nav__left-actions {
        opacity: 1 !important;
        visibility: visible !important;
        left: 20px !important;
        transform: translate(0, -50%) !important;
        pointer-events: auto !important;
        transition: opacity 0.4s ease 0.15s, left 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0s, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.1s, visibility 0s 0s !important;
    }

    .nav:hover .nav__right-actions {
        opacity: 1 !important;
        visibility: visible !important;
        right: 20px !important;
        transform: translate(0, -50%) !important;
        pointer-events: auto !important;
        transition: opacity 0.4s ease 0.15s, right 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0s, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.1s, visibility 0s 0s !important;
    }

    .nav__location {
        font-size: 0.65rem !important;
        font-weight: 700 !important;
        letter-spacing: 0.15em !important;
        color: rgba(255, 255, 255, 0.4) !important;
        white-space: nowrap !important;
        text-transform: uppercase !important;
    }

    .header .lang-toggle {
        display: none !important;
    }

    .nav__right-actions .lang-toggle {
        display: flex !important;
        align-items: center !important;
        background: transparent !important;
        border: none !important;
        border-left: 1px solid rgba(255, 255, 255, 0.15) !important;
        border-radius: 0 !important;
        padding: 0 0 0 0.8rem !important;
        height: 20px !important;
    }
}

/* Bottom Navigation and Mobile Notch (Hidden on Desktop) */
.bottom-nav,
.mobile-notch {
    display: none;
}

@media (max-width: 768px) {
    .bottom-nav {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 9999;
        background: rgba(15, 15, 15, 0.75);
        backdrop-filter: blur(25px) saturate(180%);
        -webkit-backdrop-filter: blur(25px) saturate(180%);
        border-top: 0.5px solid rgba(255, 255, 255, 0.1);
        padding-bottom: env(safe-area-inset-bottom);
    }

    .bottom-nav__list {
        display: flex;
        justify-content: space-around;
        align-items: center;
        list-style: none;
        padding: 0.5rem 0;
        margin: 0;
    }

    .bottom-nav__link {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 0.25rem;
        color: rgba(255, 255, 255, 0.5);
        text-decoration: none;
        font-size: 0.65rem;
        font-weight: 500;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        min-height: 48px;
    }

    .bottom-nav__link svg { transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
    .bottom-nav__link.active { color: var(--color-accent); }
    .bottom-nav__link.active svg {
        transform: translateY(-2px);
        filter: drop-shadow(0 0 8px rgba(167, 139, 250, 0.5));
    }
}