/* ================================
   Header & Navigation Styles
   Complete CSS for consistent header across all pages
   Extracted 100% from index.html / styles.css
   ================================ */

/* ================================
   Desktop Navigation (Default)
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-xs) var(--space-lg);
    background: rgba(5, 5, 16, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-image {
    width: 120px;
    height: 38px;
    object-fit: contain;
    border-radius: 6px;
    transition: transform 0.3s ease;
}

.logo:hover .logo-image {
    transform: scale(1.1);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Navigation Links - Desktop */
.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 400;
    padding: 4px var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
}

.nav-link.active {
    color: var(--text-primary);
    font-weight: 500;
}

/* ================================
   Glass Buttons (for LINE button)
   ================================ */
.btn-glass {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--font-thai);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-glass:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-glass:active {
    transform: translateY(0);
}

.btn-line,
.btn-line-hero {
    background: linear-gradient(135deg,
            rgba(6, 199, 85, 0.15),
            rgba(6, 199, 85, 0.25));
    border-color: rgba(6, 199, 85, 0.3);
    color: var(--line-green);
}

.btn-line:hover,
.btn-line-hero:hover {
    background: linear-gradient(135deg,
            rgba(6, 199, 85, 0.25),
            rgba(6, 199, 85, 0.35));
    border-color: rgba(6, 199, 85, 0.5);
    box-shadow: 0 0 30px rgba(6, 199, 85, 0.2);
}

.line-icon {
    width: 18px;
    height: 18px;
}

/* Phone Button - Visible on all screens */
.mobile-phone-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.mobile-phone-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.mobile-phone-btn:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-blue);
}

/* Header LINE Button - Match Phone Button Size */
.navbar .btn-line {
    padding: 8px 14px;
    font-size: 0.85rem;
    gap: 6px;
}

.navbar .btn-line .line-icon {
    width: 16px;
    height: 16px;
}

/* Mobile Menu Button - Hidden by default on PC */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 8px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-btn:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-purple);
}

.hamburger-line {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Mobile Menu Dropdown - Hidden by default */
.mobile-menu {
    display: none;
    flex-direction: column;
    background: rgba(5, 5, 16, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-md);
    gap: var(--space-sm);
    margin: var(--space-sm) var(--space-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.mobile-menu.active {
    display: none;
    /* Hidden by default on desktop */
}

/* Only show mobile menu on tablet and mobile */
@media (max-width: 1024px) {
    .mobile-menu.active {
        display: flex;
    }
}

.mobile-menu-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    text-align: center;
    background: var(--glass-bg);
    border: 1px solid transparent;
}

.mobile-menu-link:hover {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
    transform: translateX(4px);
}

/* ================================
   Mobile Responsive - Header
   @media (max-width: 1024px) and @media (max-width: 768px)
   ================================ */
@media (max-width: 1024px) {

    /* Hide desktop nav links on tablet */
    .nav-links {
        display: none !important;
    }

    /* Show Mobile Menu Button on tablet and mobile */
    .mobile-menu-btn {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 40px !important;
        height: 40px !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
        gap: 4px !important;
        background: var(--glass-bg) !important;
        border: 1px solid var(--glass-border) !important;
        border-radius: var(--radius-md) !important;
        cursor: pointer !important;
        padding: 8px !important;
        position: relative !important;
        z-index: 1001 !important;
    }

    .hamburger-line {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 20px !important;
        height: 2px !important;
        background: var(--text-primary) !important;
        border-radius: 2px !important;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: var(--space-sm) var(--space-md);
    }

    /* Nav Container - Space between logo and buttons on mobile */
    .nav-container {
        justify-content: space-between;
        gap: var(--space-sm);
    }

    /* Larger Logo for Mobile */
    .logo-image {
        width: 120px;
        height: 45px;
    }

    /* Hide desktop nav links on mobile */
    .nav-links {
        display: none;
    }

    /* Mobile Header: Show phone button */
    .mobile-phone-btn {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 12px;
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-lg);
        color: var(--text-primary);
        text-decoration: none;
        font-size: 0.8rem;
        font-weight: 500;
        transition: all 0.3s ease;
    }

    .mobile-phone-btn svg {
        width: 16px;
        height: 16px;
        flex-shrink: 0;
    }

    .mobile-phone-btn:hover {
        background: var(--glass-bg-hover);
        border-color: var(--accent-blue);
    }

    /* Hide LINE button on mobile - replaced by menu button */
    .navbar .btn-line {
        display: none;
    }

    /* Show Mobile Menu Button (Hamburger) */
    .mobile-menu-btn {
        display: flex !important;
        order: 3 !important;
        flex-shrink: 0 !important;
        position: relative !important;
        z-index: 1001 !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 40px !important;
        height: 40px !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
        gap: 4px !important;
        background: var(--glass-bg) !important;
        border: 1px solid var(--glass-border) !important;
        border-radius: var(--radius-md) !important;
        cursor: pointer !important;
        padding: 8px !important;
        margin: 0 !important;
    }

    .hamburger-line {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 20px !important;
        height: 2px !important;
        background: var(--text-primary) !important;
        border-radius: 2px !important;
    }

    /* Mobile: Phone button order */
    .mobile-phone-btn {
        order: 2;
        flex-shrink: 0;
        margin-right: var(--space-xs);
    }

    /* Mobile: Logo order */
    .logo {
        order: 1;
        flex-shrink: 0;
    }

    /* Ensure nav-container wraps properly on mobile */
    .nav-container {
        flex-wrap: nowrap;
        overflow: visible;
    }
}