/* ===================================================================
   HEADER & NAVIGATION STYLES (Dr. S.S. Tantia Dental College)
   =================================================================== */

/* Ensure offcanvas is hidden from viewport boundaries when closed */
.dental-offcanvas:not(.show) {
    visibility: hidden !important;
    pointer-events: none !important;
}

.dental-offcanvas.show {
    visibility: visible !important;
    pointer-events: auto !important;
}

/* Global safety & viewport boundary enforcement (supports sticky header) */
html, body {
    width: 100%;
    max-width: 100%;
    overflow-x: clip;
}

main {
    max-width: 100%;
    overflow-x: clip;
}

.home-slider, .slider-item, .owl-carousel, .owl-stage-outer {
    max-width: 100% !important;
    overflow: hidden !important;
}

.owl-stage {
    max-width: none;
}

/* Enforce Sticky Navbar Bar */
.dental-header-bar,
.navbar-area.sticky-top {
    position: -webkit-sticky !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 1040 !important;
    background: #ffffff !important;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box;
}

.dental-header-bar.is-sticky,
.dental-header-bar.menu-shrink {
    box-shadow: 0 6px 25px rgba(0, 30, 60, 0.12) !important;
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px);
}

.header-top {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box;
}

@media (max-width: 767.98px) {
    .slider-item .slider-text h1 {
        font-size: 26px !important;
        max-width: 100% !important;
        word-break: break-word !important;
    }
}

/* Header Top Styling */
.header-top {
    background: linear-gradient(90deg, #021a29 0%, #00424f 55%, #008298 100%);
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 13px;
    position: relative;
    z-index: 1030;
    line-height: 1.4;
}

.header-top-info-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #e2e8f0;
    font-weight: 500;
    font-size: 12.5px;
}

.header-top-info-item a {
    color: #e2e8f0;
    text-decoration: none;
    transition: color 0.2s ease;
}

.header-top-info-item a:hover {
    color: #38bdf8;
}

.header-badge-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11.5px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.header-badge-admission {
    background: rgba(255, 180, 0, 0.18);
    border: 1px solid rgba(255, 180, 0, 0.4);
    color: #fde047;
}

.header-badge-admission:hover {
    background: rgba(255, 180, 0, 0.3);
    color: #ffffff;
}

.live-beacon {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: #22c55e;
    box-shadow: 0 0 8px #22c55e;
    display: inline-block;
    animation: pulseBeacon 1.5s infinite;
}

@keyframes pulseBeacon {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.header-badge-tour {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #ffffff;
}

.header-badge-tour:hover {
    background: rgba(0, 130, 152, 0.4);
    color: #ffffff;
}

.header-badge-dci {
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: #e0f2fe;
}

.header-badge-dci:hover {
    background: rgba(56, 189, 248, 0.25);
    color: #ffffff;
}

/* Sticky Header Bar */
.dental-header-bar {
    position: sticky;
    top: 0;
    z-index: 1020;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 130, 152, 0.08);
}

.dental-brand-logo {
    height: 54px;
    width: 54px;
    object-fit: contain;
    transition: all 0.25s ease;
}

.dental-brand-text {
    line-height: 1.2;
}

.dental-brand-text .brand-title {
    font-size: 16px;
    font-weight: 700;
    color: #0c2333;
    letter-spacing: -0.2px;
}

.dental-brand-text .brand-subtitle {
    font-size: 11px;
    font-weight: 500;
    color: #008298;
    margin-top: 1px;
}

/* Desktop Navigation Styling (>= 1200px) */
.dental-desktop-nav .dental-nav-list .nav-item .nav-link {
    font-weight: 600;
    font-size: 14.5px;
    color: #1e293b;
    padding: 22px 12px;
    transition: all 0.25s ease;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.dental-desktop-nav .dental-nav-list .nav-item .nav-link::after {
    content: "";
    position: absolute;
    bottom: 14px;
    left: 12px;
    right: 12px;
    height: 3px;
    border-radius: 3px;
    background: #008298;
    opacity: 0;
    transform: scaleX(0);
    transition: all 0.25s ease;
}

.dental-desktop-nav .dental-nav-list .nav-item:hover .nav-link,
.dental-desktop-nav .dental-nav-list .nav-item .nav-link.active {
    color: #008298;
}

.dental-desktop-nav .dental-nav-list .nav-item:hover .nav-link::after,
.dental-desktop-nav .dental-nav-list .nav-item .nav-link.active::after {
    opacity: 1;
    transform: scaleX(1);
}

.dental-desktop-nav .dental-nav-list .dropdown-toggle::after {
    display: inline-block;
    margin-left: 4px;
    vertical-align: middle;
    content: "\f107";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    border: none;
    font-size: 11px;
    transition: transform 0.2s ease;
}

/* Desktop Dropdown & Submenu On Hover (>= 1200px) */
.dental-desktop-nav .dental-nav-list .dropdown:hover .dropdown-toggle::after {
    transform: rotate(180deg);
}

@media (min-width: 1200px) {
    /* 1. Main Level Dropdown Menus */
    .dental-desktop-nav .nav-item.dropdown {
        position: relative;
    }

    .dental-desktop-nav .nav-item.dropdown > .dropdown-menu {
        display: block !important;
        position: absolute !important;
        top: 100% !important;
        left: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
        transform: translateY(8px) !important;
        transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1), 
                    transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), 
                    visibility 0.22s !important;
        margin-top: 0 !important;
        border-top: 3px solid #008298 !important;
        border-left: none !important;
        border-right: none !important;
        border-bottom: none !important;
        border-radius: 8px !important;
        box-shadow: 0 12px 35px rgba(0, 30, 60, 0.14) !important;
        padding: 8px 6px;
        min-width: 250px;
        background: #ffffff !important;
        z-index: 1050 !important;
    }

    /* Invisible hover bridge to prevent cursor gap drop */
    .dental-desktop-nav .nav-item.dropdown > .dropdown-menu::before {
        content: "";
        position: absolute;
        top: -12px;
        left: 0;
        right: 0;
        height: 12px;
    }

    /* Show Main Dropdown on Hover or Focus/Click */
    .dental-desktop-nav .nav-item.dropdown:hover > .dropdown-menu,
    .dental-desktop-nav .nav-item.dropdown > .dropdown-menu.show {
        opacity: 1 !important;
        visibility: visible !important;
        pointer-events: auto !important;
        transform: translateY(0) !important;
    }

    /* 2. Nested Sub-Menu (Level 2) */
    .dental-desktop-nav .dropdown-submenu {
        position: relative;
    }

    .dental-desktop-nav .dropdown-submenu > .dropdown-submenu-menu {
        display: block !important;
        position: absolute !important;
        top: 0 !important;
        left: 100% !important;
        margin-top: -6px !important;
        margin-left: 2px !important;
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
        transform: translateX(8px) !important;
        transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
                    transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
                    visibility 0.2s !important;
        border-top: 3px solid #008298 !important;
        border-left: none !important;
        border-right: none !important;
        border-bottom: none !important;
        border-radius: 8px !important;
        box-shadow: 0 14px 40px rgba(0, 30, 60, 0.16) !important;
        padding: 8px 6px;
        min-width: 250px;
        background: #ffffff !important;
        z-index: 1060 !important;
    }

    /* Invisible hover bridge between parent item and submenu */
    .dental-desktop-nav .dropdown-submenu > .dropdown-submenu-menu::before {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        left: -10px;
        width: 10px;
    }

    /* Show Submenu on Hover */
    .dental-desktop-nav .dropdown-submenu:hover > .dropdown-submenu-menu,
    .dental-desktop-nav .dropdown-submenu > .dropdown-submenu-menu.show {
        opacity: 1 !important;
        visibility: visible !important;
        pointer-events: auto !important;
        transform: translateX(0) !important;
    }

    /* Submenu item styling on hover */
    .dental-desktop-nav .dropdown-menu .dropdown-toggle::after {
        display: none !important; /* Hide caret since fa-chevron-right is present */
    }

    .dental-desktop-nav .dropdown-submenu:hover > a {
        background-color: #f1f5f9;
        color: #008298;
    }

    .dental-desktop-nav .dropdown-submenu:hover > a .fa-chevron-right {
        transform: translateX(3px);
        color: #008298 !important;
        transition: transform 0.2s ease, color 0.2s ease;
    }
}

.dental-desktop-nav .dropdown-menu .dropdown-item {
    font-size: 13.5px;
    font-weight: 500;
    color: #334155;
    padding: 8px 14px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.dental-desktop-nav .dropdown-menu .dropdown-item:hover {
    background-color: #f1f5f9;
    color: #008298;
    transform: translateX(3px);
}

.dental-desktop-nav .dropdown-menu .dropdown-item.active {
    background-color: rgba(0, 130, 152, 0.08);
    color: #008298;
    font-weight: 600;
}

/* Desktop Apply Button */
.btn-header-apply {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #008298 0%, #005e74 100%);
    color: #ffffff !important;
    font-weight: 700;
    font-size: 13px;
    padding: 9px 18px;
    border-radius: 50px;
    box-shadow: 0 4px 14px rgba(0, 130, 152, 0.3);
    transition: all 0.25s ease;
    text-decoration: none;
    white-space: nowrap;
}

.btn-header-apply:hover {
    background: linear-gradient(135deg, #009cb6 0%, #006e88 100%);
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 130, 152, 0.4);
}

/* Mobile & Tablet Header Actions */
.btn-mobile-quick-apply {
    background: linear-gradient(135deg, #008298 0%, #005e74 100%);
    color: #ffffff !important;
    font-size: 12px;
    font-weight: 700;
    padding: 6px 13px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 130, 152, 0.25);
    white-space: nowrap;
}

.btn-mobile-icon-btn {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: rgba(0, 130, 152, 0.08);
    color: #008298;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.2s ease;
}

.btn-mobile-icon-btn:hover {
    background: #008298;
    color: #ffffff;
}

/* Animated Hamburger Toggle */
.btn-mobile-hamburger {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: #008298;
    border: none;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 130, 152, 0.25);
    transition: all 0.25s ease;
}

.btn-mobile-hamburger:hover,
.btn-mobile-hamburger:focus {
    background: #005e74;
    outline: none;
}

.btn-mobile-hamburger .hamburger-bar {
    width: 20px;
    height: 2px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.25s ease;
}

/* Offcanvas Drawer Styles */
.dental-offcanvas {
    width: 330px !important;
    max-width: 86vw !important;
    z-index: 1060;
}

.offcanvas-brand-logo {
    height: 38px;
    width: 38px;
    object-fit: contain;
}

.dental-mobile-menu .mobile-menu-item {
    border-bottom: 1px solid #f1f5f9;
}

.dental-mobile-menu .mobile-menu-link {
    display: flex;
    align-items: center;
    padding: 12px 0;
    font-size: 14.5px;
    font-weight: 600;
    color: #1e293b;
    text-decoration: none;
    transition: all 0.2s ease;
}

.dental-mobile-menu .mobile-menu-link:hover,
.dental-mobile-menu .mobile-menu-link.active {
    color: #008298;
    padding-left: 6px;
}

.dental-mobile-menu .accordion-button {
    font-size: 14.5px;
    font-weight: 600;
    color: #1e293b;
    background: transparent;
    box-shadow: none;
    border-bottom: 1px solid #f1f5f9;
}

.dental-mobile-menu .accordion-button:not(.collapsed) {
    color: #008298;
    background-color: transparent;
}

.dental-mobile-menu .accordion-button.active-accordion {
    color: #008298;
}

.dental-mobile-menu .accordion-button::after {
    font-size: 12px;
    background-size: 12px;
}

.mobile-submenu {
    border-left: 2px solid #e2e8f0;
    margin-left: 6px;
    padding-left: 10px;
}

.mobile-sublink {
    display: block;
    padding: 8px 0;
    font-size: 13px;
    font-weight: 500;
    color: #475569;
    text-decoration: none;
    transition: all 0.2s ease;
}

.mobile-sublink:hover,
.mobile-sublink.active {
    color: #008298;
    transform: translateX(3px);
}

/* Tablet & Mobile Specific Adjustments */
.dental-mobile-actions {
    flex-shrink: 0;
}

@media (max-width: 1199.98px) {
    .dental-brand-logo {
        height: 48px;
        width: 48px;
    }
    .dental-brand-text .brand-title {
        font-size: 15px;
    }
}

@media (max-width: 575.98px) {
    .header-top {
        padding: 4px 0;
        font-size: 11px;
    }
    .header-top-info-item {
        font-size: 11px;
    }
    .header-top-info-item i {
        font-size: 11px;
    }
    .header-badge-link {
        font-size: 10.5px;
        padding: 2px 8px;
    }
    .dental-brand-logo {
        height: 38px;
        width: 38px;
    }
    .dental-brand-text .brand-title {
        font-size: 13px;
        line-height: 1.15;
    }
    .btn-mobile-hamburger {
        width: 36px;
        height: 36px;
        gap: 4px;
    }
    .btn-mobile-hamburger .hamburger-bar {
        width: 17px;
        height: 2px;
    }
    .btn-mobile-icon-btn {
        width: 34px;
        height: 34px;
        font-size: 13px;
    }
    .dental-mobile-actions {
        gap: 6px !important;
    }
}