/* ============================================
   CUSTOM HEADER - LODE STYLE WITH MOBILE MENU
   ============================================ */

/* Header Container - TRANSPARENT BAR with Slide Down Animation */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: transparent;
    padding: 2rem 0;
    z-index: 9999;
}

/* Initial load animation */
.site-header.header-initial {
    opacity: 0;
    margin-top: -20px;  /* Instead of transform */
    transition: opacity 0.35s ease, margin-top 0.35s ease;
}

body:not(.loading) .site-header.header-initial {
    opacity: 1;
    margin-top: 0;
}


.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo/Branding */
.brand-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #000000;
    text-decoration: none;
    letter-spacing: 0;
    transition: opacity 0.2s ease;
    position: relative;
    z-index: 10001;
}

.brand-logo:hover {
    opacity: 0.6;
}

/* Hamburger Menu Button (Hidden on Desktop) */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 12px;  /* Even spacing between 2 lines */
    width: 30px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10001;
    position: relative;
    outline: none;  /* Remove focus outline/box */
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background-color: #000000;
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Hide the third line */
.hamburger-line:nth-child(3) {
    display: none;
}

/* Hamburger Animation - 2 lines to X */
.mobile-menu-toggle.is-active .hamburger-line {
    background-color: #ffffff;
}
.mobile-menu-toggle.is-active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.is-active .hamburger-line:nth-child(2) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Navigation (Desktop) */
.main-navigation {
    background-color: rgba(243, 245, 253, 0.35); /* Very light bluish tint */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 50px;
    padding: 0.75rem 1.5rem;
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.main-navigation.scrolled {
    background-color: rgba(230, 235, 248, 0.65);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}


.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    font-size: 0.95rem;
    font-weight: 400;
    color: #000000;
    text-decoration: none;
    letter-spacing: 0.01em;
    transition: opacity 0.2s ease;
    padding: 0.5rem 0.75rem;
    display: block;
}

.nav-menu a:hover {
    color: #000000 !important;
    opacity: 0.8;
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 9998;
}

.mobile-menu-overlay.is-active {
    opacity: 1;
    visibility: visible;
}


/* ===== RESPONSIVE - TABLET ===== */
@media (max-width: 968px) {
    .site-header {
        padding: 1.5rem 0;
    }
    
    .header-container {
        padding: 0 2rem;
    }
    
    .main-navigation {
        padding: 0.6rem 1.25rem;
    }
    
    .nav-menu {
        gap: 1.5rem;
    }
    
    .nav-menu a {
        font-size: 0.9rem;
        padding: 0.45rem 0.6rem;
    }

}

/* ===== RESPONSIVE - MOBILE (HAMBURGER MENU) ===== */
@media (max-width: 768px) {
    .header-container {
        padding: 0 1.5rem;
    }
    
    /* Show Hamburger Button */
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Hide Desktop Navigation */
    .main-navigation {
        position: fixed;
        top: -100%;            /* ← Changed: Starts off-screen ABOVE */
        left: 0;               /* ← Changed: Anchored to left */
        right: 0;              /* ← Changed: Spans full width */
        height: 100vh;
        width: 100%;
        max-width: 100%;
        background: #000000;
        padding: 6rem 2rem 2rem;
        transition: top 0.4s cubic-bezier(0.4, 0, 0.2, 1);  /* ← Animates 'top' with smoother easing */
        z-index: 10000;
        overflow-y: auto;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);  /* ← Shadow at bottom instead of left */
        border-radius: 0;
    }
    
        /* Override scrolled state on mobile - force black background always */
    .main-navigation.scrolled {
        background-color: #000000 !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
    /* Open State */
    .main-navigation.is-open {
        top: 0;                /* ← Changed: Slides down from top */
    }
    
    /* Mobile Menu Layout */
    .nav-menu {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 100%;
        margin-top: -3rem;
    }
    
    .nav-menu li {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.4s ease, transform 0.4s ease;
    }
    
    .main-navigation.is-open .nav-menu li {
        opacity: 1;
        transform: translateY(0);
    }
    
    .main-navigation.is-open .nav-menu li:nth-child(1) { transition-delay: 0.3s; }
    .main-navigation.is-open .nav-menu li:nth-child(2) { transition-delay: 0.4s; }
    .main-navigation.is-open .nav-menu li:nth-child(3) { transition-delay: 0.5s; }
    
    .nav-menu li {
        position: relative;
        width: 100%;
        text-align: center;
    }
    

    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        font-size: 2rem;  /* Bigger */
        font-weight: 600;
        padding: 1rem 0;
        color: #ffffff;  /* White text */
        text-align: center;
    }
    
    .nav-menu a:hover {
        opacity: 0.6;
        color: #000000;;
    }
    
    .brand-logo {
        font-size: 1.25rem;
    }
    
}

/* ===== RESPONSIVE - SMALL MOBILE ===== */
@media (max-width: 480px) {
    .header-container {
        padding: 0 1rem;
    }
    
    .main-navigation {
        width: 100%;
        padding: 5rem 1.5rem 2rem;
    }
    
    .nav-menu a {
        font-size: 2rem;
        padding: 1rem 0;
    }
    
    .brand-logo {
        font-size: 1.125rem;
    }
}

/* ===== ACCESSIBILITY ===== */

/* Prevent body scroll when menu is open */
body.menu-open {
    overflow: hidden;
}

/* Smooth transitions */
@media (prefers-reduced-motion: reduce) {
    .main-navigation,
    .mobile-menu-overlay,
    .hamburger-line,
    .mobile-menu-toggle {
        transition: none;
    }
}


/* Hide header while loader is active */
body.loading .site-header {
    opacity: 0;
    visibility: hidden;
}

/* Remove Hamburger menu outline on focus/active */
.mobile-menu-toggle:focus,
.mobile-menu-toggle:active,
.mobile-menu-toggle:focus-visible {
    outline: none;
    box-shadow: none;
    -webkit-tap-highlight-color: transparent;
}

body.menu-open .brand-logo {
    color: #ffffff !important;
    z-index: 10002;  /* Above menu */
    position: relative;
}