/* ===================================
   RESPONSIVE HEADER & NAVBAR STYLES
   =================================== */

/* Header Container */
.header-modern {
    position: fixed !important; /* Force fixed positioning */
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    background: transparent;
    z-index: 9999;
    box-shadow: none;
    transition: background 0.3s ease, transform 0.4s ease-in-out !important; /* Smooth transform animation */
}

/* Hide header on scroll down */
.header-modern.header-hidden {
    transform: translateY(-100%) !important;
}

/* Show header on scroll up */
.header-modern.header-visible {
    transform: translateY(0) !important;
    background: #000000 !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3) !important;
}

/* Black background when scrolled (fallback/init) */
.header-modern.scrolled {
    background: #000000;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 30px;
    max-width: 100%;
    margin: 0 auto;
}

/* Logo Styling */
.logo-container {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.logo {
    height: 100px;
    width: auto;
    display: block;
    transition: all 0.3s ease;
}

.logo:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 3;
    transition: all 0.3s ease;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger:hover span {
    background: #cccccc;
}

/* Removed hamburger X animation - only close button inside menu will be X */

/* Book Button */
.book-btn {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 10px 25px;
    border: 2px solid #ffffff;
    border-radius: 4px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    z-index: 3;
    position: relative;
    overflow: hidden;
}

.book-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: #ffffff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
    z-index: -1;
}

.book-btn:hover::before {
    width: 300px;
    height: 300px;
}

.book-btn:hover {
    color: #000000;
    border-color: #ffffff;
}

/* Accessibility */
.hamburger:focus,
.book-btn:focus {
    outline: 2px solid #ffffff;
    outline-offset: 2px;
}