/*
   RESPONSIVE NAVIGATION CSS - FIXED VERSION
   For Smart Screener - Works across all screen sizes and orientations
*/

/* CSS Custom Properties */
:root {
    --nav-height: 60px;
    --nav-bg: #0A0A0B;
    --nav-text: #FFFFFF;
    --nav-accent: #00D4FF;
    --nav-hover: rgba(255, 255, 255, 0.1);
    --mobile-breakpoint: 992px;
}

/* Base Navigation Styles */
.navbar {
    background: var(--nav-bg);
    height: var(--nav-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--nav-text);
    font-weight: 700;
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    text-decoration: none;
}

.brand-pro {
    color: #FFD700;
    font-size: 0.8em;
    text-shadow: 0 0 5px rgba(255, 215, 0, 0.5);
}

/* Desktop Navigation */
.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--nav-text);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-size: clamp(0.85rem, 1.5vw, 0.95rem);
    white-space: nowrap;
}

.nav-link:hover {
    background: var(--nav-hover);
    color: var(--nav-accent);
}

.nav-link.active {
    background: var(--nav-accent);
    color: var(--nav-bg);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-refresh {
    background: var(--nav-accent);
    color: var(--nav-bg);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-refresh:hover {
    background: #00A8E8;
    transform: translateY(-1px);
}

.last-update {
    color: var(--nav-text);
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Mobile Menu Toggle (Hidden by default) */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--nav-text);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
    display: block;
}

.mobile-menu-toggle.active .hamburger:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
    background: var(--nav-text);
}

.mobile-menu-toggle.active .hamburger:nth-child(2) {
    opacity: 0;
    background: var(--nav-text);
}

.mobile-menu-toggle.active .hamburger:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
    background: var(--nav-text);
}

/* Ensure hamburger lines are always visible */
.hamburger {
    background: var(--nav-text) !important;
    opacity: 1;
    visibility: visible;
}

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

/* ========================================
   DESKTOP BREAKPOINTS
   ======================================== */

/* Large Desktop */
@media (min-width: 1200px) {
    .nav-container {
        padding: 0 2rem;
    }
    .nav-link {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
    }
    .nav-menu {
        gap: 1rem;
    }
}

/* Desktop to Large Tablet */
@media (max-width: 1199px) and (min-width: 993px) {
    .nav-container {
        padding: 0 1.5rem;
    }
    .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    .nav-menu {
        gap: 0.25rem;
    }
    .last-update {
        font-size: 0.75rem;
    }
}

/* ========================================
   MOBILE BREAKPOINT (992px and below)
   ======================================== */
@media (max-width: 992px) {
    /* Show mobile menu toggle */
    .mobile-menu-toggle {
        display: flex !important;
        margin-left: auto;
    }

    /* Hide desktop nav actions */
    .nav-actions {
        display: none !important;
    }

    /* Mobile menu styling */
    .nav-menu {
        position: fixed !important;
        top: var(--nav-height) !important;
        left: -100% !important;
        width: 100% !important;
        height: calc(100vh - var(--nav-height)) !important;
        background: var(--nav-bg) !important;
        flex-direction: column !important;
        align-items: stretch !important;
        padding: 1rem !important;
        transition: left 0.3s ease !important;
        z-index: 999 !important;
        overflow-y: auto !important;
        display: flex !important;
        box-shadow: 2px 0 20px rgba(0,0,0,0.5) !important;
        gap: 0 !important;
    }

    .nav-menu.active {
        left: 0 !important;
    }

    .nav-item {
        margin: 0.25rem 0 !important;
        list-style: none !important;
    }

    .nav-link {
        display: block !important;
        padding: 1rem 1.5rem !important;
        font-size: 1.1rem !important;
        width: 100% !important;
        text-align: left !important;
        color: var(--nav-text) !important;
        text-decoration: none !important;
        border-radius: 8px !important;
        transition: all 0.3s ease !important;
        border-bottom: 1px solid rgba(255,255,255,0.1) !important;
    }

    .nav-link:hover {
        background: var(--nav-hover) !important;
        color: var(--nav-accent) !important;
        transform: translateX(5px) !important;
    }

    .nav-link.active {
        background: var(--nav-accent) !important;
        color: var(--nav-bg) !important;
    }

    /* Show mobile nav actions */
    .mobile-nav-actions {
        display: block !important;
        margin-top: auto;
        padding-top: 1rem;
        border-top: 1px solid rgba(255,255,255,0.1);
    }

    .mobile-btn-refresh {
        width: 100%;
        background: var(--nav-accent);
        color: var(--nav-bg);
        border: none;
        padding: 1rem;
        border-radius: 8px;
        font-size: 1rem;
        font-weight: 600;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
    }

    .mobile-last-update {
        color: var(--nav-text);
        font-size: 0.9rem;
        text-align: center;
        margin-top: 1rem;
        opacity: 0.8;
    }
}

/* Tablet Landscape */
@media (max-width: 992px) and (min-width: 769px) {
    .nav-container {
        padding: 0 1.5rem;
    }
    .nav-brand {
        font-size: 1.1rem;
    }
}

/* Tablet Portrait */
@media (max-width: 768px) and (min-width: 481px) {
    .nav-container {
        padding: 0 1rem;
    }
    .nav-brand {
        font-size: 1rem;
    }
    .brand-pro {
        font-size: 0.7em;
    }
}

/* Mobile Phones */
@media (max-width: 480px) {
    .nav-container {
        padding: 0 0.75rem;
    }
    .nav-brand {
        font-size: 0.95rem;
    }
    .brand-pro {
        display: none;
    }
    .nav-menu {
        padding: 0.75rem !important;
    }
    .nav-link {
        padding: 0.875rem 1rem !important;
        font-size: 1rem !important;
    }
}

/* Landscape Orientation */
@media (max-height: 500px) and (orientation: landscape) {
    .nav-menu {
        height: calc(100vh - var(--nav-height)) !important;
        padding: 0.5rem !important;
    }
    .nav-link {
        padding: 0.75rem 1rem !important;
        font-size: 0.95rem !important;
    }
    .nav-item {
        margin: 0.125rem 0 !important;
    }
}

/* Accessibility & Touch */
@media (max-width: 992px) {
    .nav-link,
    .mobile-menu-toggle,
    .mobile-btn-refresh {
        min-height: 44px;
        min-width: 44px;
    }
}

.nav-link:focus,
.mobile-menu-toggle:focus,
.btn-refresh:focus {
    outline: 2px solid var(--nav-accent);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .nav-menu,
    .nav-link,
    .hamburger,
    .mobile-menu-toggle {
        transition: none;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hamburger {
        height: 1px;
    }
    .nav-link {
        font-weight: 500;
    }
}

/* ========================================
   FOOTER STYLES
   ======================================== */
.footer {
    background: var(--nav-bg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: auto;
    padding: 2rem 0 1rem 0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--nav-text);
    font-weight: 600;
    font-size: 1rem;
}

.footer-timestamp {
    text-align: right;
    color: var(--nav-text);
}

.timestamp-label {
    display: block;
    font-size: 0.85rem;
    opacity: 0.8;
    margin-bottom: 0.25rem;
}

.timestamp-value {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: #FFD700;
    margin-bottom: 0.25rem;
}

.timezone-info {
    font-size: 0.75rem;
    opacity: 0.7;
    font-style: italic;
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--nav-text);
    font-size: 0.85rem;
    opacity: 0.7;
    margin: 0;
}

/* Mobile Footer */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .footer-timestamp {
        text-align: center;
    }

    .footer-brand {
        justify-content: center;
    }
}