/* ============================================
   UNIFIED HEADER STYLES - STRIPE-STYLE
   ============================================ */

/* CSS Variables (with fallbacks) */
:root {
    --primary-blue: #5EC4D5;
    --primary-dark: #4AAFC0;
    --accent-light: #E8F7F9;
    --dark-text: #1a1a1a;
    --light-text: #666666;
    --white: #ffffff;
    --light-bg: #f8fafb;
    --border-light: #e5e7eb;
}

/* Top Bar */
.top-bar {
    background: var(--primary-blue, #5EC4D5);
    color: var(--white, #ffffff);
    padding: 0.5rem 0;
    font-size: 0.875rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.top-bar-left {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white, #ffffff);
    text-decoration: none;
    transition: opacity 0.2s ease;
    font-size: 0.875rem;
}

.top-bar-item:hover {
    opacity: 0.85;
}

.top-bar-item i {
    font-size: 0.75rem;
}

.top-bar-right {
    display: flex;
    align-items: center;
}

.language-selector {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    padding: 0.35rem 0.75rem;
    color: var(--white, #ffffff);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.2s ease;
}

.language-selector:hover {
    background: rgba(255, 255, 255, 0.25);
}

.language-selector option {
    background: var(--primary-blue, #5EC4D5);
    color: var(--white, #ffffff);
}

/* Main Header */
.medikal-header {
    background: var(--white, #ffffff);
    border-bottom: 1px solid var(--border-light, #e5e7eb);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow 0.2s ease;
}

.medikal-header.scrolled {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 20px;
    gap: 2rem;
}

/* Logo */
.logo-section {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
    padding: 0.25rem 0;
}

.logo-section img {
    height: 36px;
    width: auto;
    display: block;
}

/* Desktop Navigation */
.desktop-nav {
    display: flex;
    flex: 1;
    justify-content: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
    align-items: center;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    color: var(--dark-text, #1a1a1a);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: 6px;
    transition: background-color 0.15s ease, color 0.15s ease;
    white-space: nowrap;
}

.nav-menu > li > a:hover {
    background: var(--light-bg, #f8fafb);
    color: var(--primary-blue, #5EC4D5);
}

.nav-menu > li > a i {
    font-size: 0.75rem;
    transition: transform 0.2s ease;
}

.nav-item-dropdown:hover > a i {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    background: var(--white, #ffffff);
    border: 1px solid var(--border-light, #e5e7eb);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    padding: 0.5rem 0;
    z-index: 100;
}

.nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--dark-text, #1a1a1a);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.dropdown-item:hover {
    background: var(--light-bg, #f8fafb);
    color: var(--primary-blue, #5EC4D5);
}

.dropdown-item:first-child {
    border-radius: 8px 8px 0 0;
}

.dropdown-item:last-child {
    border-radius: 0 0 8px 8px;
}

.dev-badge {
    color: #ff9800;
    font-size: 0.8125rem;
    font-weight: 500;
}

/* CTA Button */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    background: var(--primary-blue, #5EC4D5);
    color: var(--white, #ffffff);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 6px;
    transition: background-color 0.2s ease, transform 0.1s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.cta-button:hover {
    background: var(--primary-dark, #4AAFC0);
    transform: translateY(-1px);
}

.cta-button:active {
    transform: translateY(0);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: var(--primary-blue, #5EC4D5);
    border: none;
    padding: 0.625rem;
    cursor: pointer;
    z-index: 1002;
    position: relative;
    border-radius: 6px;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0.3);
    touch-action: manipulation;
}

.mobile-menu-btn:hover {
    background: var(--primary-dark, #4AAFC0);
}

.mobile-menu-btn:active {
    background: var(--primary-dark, #4AAFC0);
}

.hamburger-line {
    width: 22px;
    height: 3px;
    background: var(--white, #ffffff);
    border-radius: 2px;
    transition: all 0.3s ease;
    display: block;
    flex-shrink: 0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Overlay */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background: var(--white, #ffffff);
    z-index: 1001;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -2px 0 16px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-light, #e5e7eb);
    flex-shrink: 0;
}

.mobile-nav-logo img {
    height: 32px;
    width: auto;
}

.mobile-close-btn {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--dark-text, #1a1a1a);
    cursor: pointer;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.mobile-close-btn:hover {
    background: var(--light-bg, #f8fafb);
}

/* Mobile Nav List */
.mobile-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    overflow-y: auto;
}

.mobile-nav-list > li {
    border-bottom: 1px solid var(--border-light, #e5e7eb);
}

.mobile-nav-list > li > a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--dark-text, #1a1a1a);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.mobile-nav-list > li > a:hover,
.mobile-nav-list > li > a:active {
    background: var(--light-bg, #f8fafb);
    color: var(--primary-blue, #5EC4D5);
}

/* Mobile Dropdown */
.mobile-nav-dropdown-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--dark-text, #1a1a1a);
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.mobile-nav-dropdown-toggle:hover {
    background: var(--light-bg, #f8fafb);
    color: var(--primary-blue, #5EC4D5);
}

.mobile-nav-dropdown-toggle i {
    font-size: 0.75rem;
    transition: transform 0.3s ease;
}

.mobile-nav-dropdown[aria-expanded="true"] .mobile-nav-dropdown-toggle i {
    transform: rotate(180deg);
}

.mobile-nav-dropdown-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    background: var(--light-bg, #f8fafb);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-nav-dropdown[aria-expanded="true"] .mobile-nav-dropdown-menu {
    max-height: 500px;
}

.mobile-nav-dropdown-menu li {
    border-bottom: 1px solid var(--border-light, #e5e7eb);
}

.mobile-nav-dropdown-menu a {
    display: block;
    padding: 0.875rem 1.5rem 0.875rem 3rem;
    color: var(--dark-text, #1a1a1a);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.mobile-nav-dropdown-menu a:hover,
.mobile-nav-dropdown-menu a:active {
    background: var(--white, #ffffff);
    color: var(--primary-blue, #5EC4D5);
}

.mobile-cta {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-light, #e5e7eb);
    flex-shrink: 0;
}

.mobile-cta .cta-button {
    width: 100%;
    justify-content: center;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .header-container {
        padding: 1rem 20px;
    }
    
    .nav-menu {
        gap: 0.25rem;
    }
    
    .nav-menu > li > a {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    
    .header-container {
        padding: 1rem 20px;
    }
    
    .desktop-nav,
    .cta-button.desktop-only {
        display: none !important;
    }
    
    .mobile-menu-btn {
        display: flex !important;
    }
    
    .logo-section img {
        height: 32px;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0.875rem 16px;
    }
    
    .mobile-nav {
        width: 90%;
    }
    
    .mobile-nav-header {
        padding: 1rem 1.25rem;
    }
    
    .mobile-nav-list > li > a,
    .mobile-nav-dropdown-toggle {
        padding: 0.875rem 1.25rem;
        font-size: 0.9375rem;
    }
    
    .mobile-nav-dropdown-menu a {
        padding: 0.75rem 1.25rem 0.75rem 2.5rem;
    }
    
    .mobile-cta {
        padding: 1rem 1.25rem;
    }
}

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