/**
 * Millennials Portfolio Website - Navigation Component
 * File: static/css/navbar.css
 * Purpose: Styling for sticky desktop glass navigation, logo, links, CTA, and responsive mobile menu
 */

/* -----------------------------------------------------------------------------
   1. Site Header & Sticky Glass Wrapper
   ----------------------------------------------------------------------------- */
.site-header,
#site-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--section-bg-footer, #182806);
    backdrop-filter: var(--glass-blur-backdrop-lg);
    -webkit-backdrop-filter: var(--glass-blur-backdrop-lg);
    border-bottom: 1px solid rgba(187, 207, 141, 0.25);
    box-shadow: 0 4px 24px rgba(0, 36, 0, 0.25), inset 0 -1px 0 rgba(255, 255, 255, 0.12);
    box-sizing: border-box;
    transition: background-color var(--transition-normal),
                box-shadow var(--transition-normal),
                border-color var(--transition-normal);
}

/* -----------------------------------------------------------------------------
   2. Main Navigation Bar Layout
   ----------------------------------------------------------------------------- */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 84px;
    width: 100%;
    box-sizing: border-box;
}

/* -----------------------------------------------------------------------------
   3. Brand Wordmark & Image Logo
   ----------------------------------------------------------------------------- */
.navbar-brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    cursor: pointer;
    user-select: none;
    padding: 6px 4px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.navbar-brand:hover {
    opacity: 0.9;
    transform: translateY(-0.5px);
}

.navbar-brand:focus-visible {
    outline: 2px solid var(--color-primary-light, #BBCF8D);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

.brand-logo {
    height: 42px;
    width: auto;
    max-height: 48px;
    object-fit: contain;
    display: block;
    transition: transform var(--transition-fast);
}

.brand-text {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: #FFFFFF;
    letter-spacing: var(--letter-spacing-tight);
    line-height: 1;
}

.brand-dot {
    font-family: var(--font-primary);
    font-size: 1.75rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-primary-light, #BBCF8D);
    line-height: 0;
    margin-left: 2px;
}

/* -----------------------------------------------------------------------------
   4. Desktop Navigation (Links + CTA)
   ----------------------------------------------------------------------------- */
.navbar-desktop {
    display: flex;
    align-items: center;
    margin-left: auto;
    margin-right: var(--space-7);
}

.navbar-actions {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    position: relative;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: 0;
    padding: 4px 6px;
    list-style: none;
    background: rgba(0, 36, 0, 0.55);
    backdrop-filter: var(--glass-blur-backdrop-sm);
    -webkit-backdrop-filter: var(--glass-blur-backdrop-sm);
    border: 1px solid rgba(187, 207, 141, 0.25);
    border-radius: var(--radius-full);
    box-shadow: inset 0 1px 1.5px rgba(255, 255, 255, 0.10);
}

.nav-link {
    display: inline-block;
    font-family: var(--font-primary);
    font-size: var(--font-size-nav);
    font-weight: var(--font-weight-medium);
    color: #DFE3D6;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    letter-spacing: var(--letter-spacing-wide);
    white-space: nowrap;
    transition: color var(--transition-fast),
                background-color var(--transition-fast),
                border-color var(--transition-fast),
                box-shadow var(--transition-fast),
                transform var(--transition-fast);
}

.nav-link:hover {
    color: #FFFFFF;
    background-color: rgba(187, 207, 141, 0.20);
    border-color: rgba(187, 207, 141, 0.35);
    box-shadow: 0 2px 10px rgba(0, 36, 0, 0.25);
    transform: translateY(-0.5px);
}

.nav-link.active {
    color: #FFFFFF;
    font-weight: var(--font-weight-semibold);
    background: linear-gradient(135deg, rgba(88, 100, 29, 0.85) 0%, rgba(39, 59, 9, 0.95) 100%);
    border-color: rgba(187, 207, 141, 0.50);
    box-shadow: 0 2px 12px rgba(39, 59, 9, 0.35), inset 0 1px 1px rgba(255, 255, 255, 0.30);
}

.nav-link:focus-visible {
    outline: 2px solid var(--color-primary-light, #BBCF8D);
    outline-offset: 2px;
}

/* --- Navigation CTA Dropdown Wrapper & Trigger Button --- */
.nav-dropdown-wrapper {
    position: relative;
    display: inline-flex;
}

.btn-nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 12px 22px;
    font-size: var(--font-size-nav);
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
    flex-shrink: 0;
    border: 1px solid rgba(56, 189, 248, 0.45);
    background: var(--glass-btn-primary);
    color: var(--color-surface);
    cursor: pointer;
    user-select: none;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    transition: background var(--transition-normal),
                border-color var(--transition-normal),
                box-shadow var(--transition-normal),
                transform var(--transition-normal);
}

.btn-nav-cta:hover {
    background: var(--glass-btn-primary-hover);
    border-color: rgba(187, 207, 141, 0.70);
    box-shadow: 0 8px 24px rgba(88, 100, 29, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.60);
    color: var(--color-surface);
}

.btn-nav-cta.is-active {
    background: var(--glass-btn-primary-hover);
    border-color: rgba(187, 207, 141, 0.85);
    box-shadow: 0 4px 18px rgba(88, 100, 29, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.70);
}

.btn-nav-cta .cta-chat-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    line-height: 1;
    color: currentColor;
    vertical-align: middle;
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.btn-nav-cta.is-active .cta-chat-icon {
    transform: scale(1.08);
}

/* --- Contact Dropdown Popover (Desktop) --- */
.nav-contact-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 250px;
    width: max-content;
    max-width: 300px;
    background: rgba(232, 233, 228, 0.97);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(187, 207, 141, 0.85);
    border-radius: var(--radius-md, 12px);
    box-shadow: 0 14px 34px rgba(0, 36, 0, 0.28),
                0 2px 8px rgba(88, 100, 29, 0.10),
                inset 0 1px 0 rgba(255, 255, 255, 0.90);
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    pointer-events: none;
    box-sizing: border-box;
    transition: opacity 0.2s ease,
                transform 0.2s ease,
                visibility 0.2s ease;
}

.nav-contact-dropdown.is-open {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    pointer-events: auto !important;
}

/* Contact Option Item */
.nav-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm, 8px);
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    background: transparent;
    box-sizing: border-box;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    transition: background-color var(--transition-fast),
                border-color var(--transition-fast),
                transform var(--transition-fast),
                box-shadow var(--transition-fast);
}

.nav-contact-item:hover {
    background-color: var(--color-primary-soft, #DFE3D6);
    border-color: rgba(187, 207, 141, 0.45);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(39, 59, 9, 0.12);
}

.nav-contact-item:focus-visible {
    outline: 2px solid var(--color-primary, #58641D);
    outline-offset: 1px;
    background-color: var(--color-primary-soft, #DFE3D6);
    border-color: rgba(187, 207, 141, 0.45);
}

.nav-contact-item:active {
    transform: translateY(0);
}

/* Contact Option Icon Box */
.nav-contact-icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm, 8px);
    background: var(--color-primary-soft, #DFE3D6);
    border: 1px solid rgba(187, 207, 141, 0.50);
    color: var(--color-primary, #58641D);
    flex-shrink: 0;
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                border-color var(--transition-fast);
}

.nav-contact-item:hover .nav-contact-icon-box,
.nav-contact-item:focus-visible .nav-contact-icon-box {
    background-color: var(--color-primary, #58641D);
    color: #FFFFFF;
    border-color: var(--color-primary, #58641D);
}

.nav-contact-icon {
    display: block;
    width: 20px;
    height: 20px;
}

/* Contact Option Typography */
.nav-contact-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.nav-contact-title {
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text, #002400);
    line-height: 1.25;
}

.nav-contact-desc {
    font-family: var(--font-secondary);
    font-size: 0.8125rem;
    color: var(--color-text-secondary, #273B09);
    line-height: 1.35;
    margin-top: 2px;
}

/* Mid-screen Tablet Compression (prevents collision between 769px and 992px) */
@media (min-width: 769px) and (max-width: 992px) {
    .navbar-desktop {
        margin-right: var(--space-3);
    }

    .nav-links {
        gap: 2px;
        padding: 2px 4px;
    }

    .nav-link {
        padding: 6px 10px;
        font-size: 0.8125rem;
    }

    .btn-nav-cta {
        padding: 8px 14px;
        font-size: 0.8125rem;
    }
}

/* -----------------------------------------------------------------------------
   5. Mobile Hamburger Button (Hidden on Desktop)
   ----------------------------------------------------------------------------- */
.navbar-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.10);
    backdrop-filter: var(--glass-blur-backdrop-sm);
    -webkit-backdrop-filter: var(--glass-blur-backdrop-sm);
    border: 1px solid rgba(187, 207, 141, 0.35);
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 10px rgba(0, 36, 0, 0.25);
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color var(--transition-fast),
                border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.navbar-toggle:hover {
    background-color: rgba(187, 207, 141, 0.25);
    border-color: rgba(187, 207, 141, 0.50);
    box-shadow: 0 4px 14px rgba(88, 100, 29, 0.30);
}

.navbar-toggle:focus-visible {
    outline: 2px solid var(--color-primary-light, #BBCF8D);
    outline-offset: 2px;
}

.hamburger-box {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 22px;
    height: 16px;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: #FFFFFF;
    border-radius: 2px;
    transition: transform var(--transition-normal),
                opacity var(--transition-normal),
                background-color var(--transition-normal);
}

/* Hamburger to 'X' animation when mobile menu is active */
.navbar-toggle.is-active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar-toggle.is-active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.navbar-toggle.is-active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* -----------------------------------------------------------------------------
   6. Mobile Dropdown Panel
   ----------------------------------------------------------------------------- */
.navbar-mobile-panel {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    box-sizing: border-box;
    background-color: var(--section-bg-footer, #182806);
    backdrop-filter: var(--glass-blur-backdrop-xl);
    -webkit-backdrop-filter: var(--glass-blur-backdrop-xl);
    border-bottom: 1px solid rgba(187, 207, 141, 0.30);
    box-shadow: 0 16px 36px rgba(0, 36, 0, 0.40);
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
    transition: max-height var(--transition-normal),
                opacity var(--transition-normal),
                padding var(--transition-normal);
}

.navbar-mobile-panel.is-open {
    max-height: calc(100dvh - 74px);
    max-height: calc(100vh - 74px);
    opacity: 1;
    pointer-events: auto;
    padding-block: var(--space-5);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
    list-style: none;
}

.mobile-nav-link {
    display: block;
    font-family: var(--font-primary);
    font-size: 1.0625rem;
    font-weight: var(--font-weight-medium);
    color: #DFE3D6;
    text-decoration: none;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                border-color var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link:focus-visible {
    background-color: rgba(187, 207, 141, 0.20);
    border-color: rgba(187, 207, 141, 0.35);
    color: #FFFFFF;
}

.mobile-nav-link.active {
    font-weight: var(--font-weight-bold);
    color: #FFFFFF;
    background: linear-gradient(135deg, rgba(88, 100, 29, 0.90) 0%, rgba(39, 59, 9, 0.98) 100%);
    border-color: rgba(187, 207, 141, 0.60);
    box-shadow: 0 2px 12px rgba(88, 100, 29, 0.35);
}

/* -----------------------------------------------------------------------------
   7. Responsive Breakpoints
   ----------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .navbar {
        height: 74px;
        position: relative;
    }

    .brand-text {
        font-size: 1.375rem;
    }

    .brand-logo {
        height: 36px;
    }

    .navbar-desktop {
        display: none;
    }

    .navbar-actions {
        display: inline-flex;
        align-items: center;
        gap: var(--space-2, 8px);
        margin-left: auto;
        position: relative;
    }

    .nav-dropdown-wrapper {
        position: static;
        display: inline-flex;
    }

    .navbar-toggle {
        display: flex;
        width: 42px;
        height: 42px;
        padding: 9px;
    }

    .navbar-mobile-panel {
        display: block;
    }

    .btn-nav-cta {
        padding: 9px 14px;
        font-size: 0.8125rem;
        min-height: 40px;
    }

    .btn-nav-cta .cta-chat-icon {
        width: 15px;
        height: 15px;
    }

    /* Mobile Contact Dropdown Popover: Positioned directly below navbar buttons */
    .nav-contact-dropdown,
    .mobile-contact-dropdown {
        position: absolute;
        top: calc(100% + 8px);
        right: 0;
        left: auto;
        min-width: 240px;
        width: min(280px, calc(100vw - 28px));
        max-width: calc(100vw - 28px);
        margin-top: 0;
        z-index: 1050;
        transform: translateY(-6px);
        box-shadow: 0 16px 36px rgba(0, 36, 0, 0.35),
                    0 2px 10px rgba(88, 100, 29, 0.15),
                    inset 0 1px 0 rgba(255, 255, 255, 0.90);
    }

    .nav-contact-dropdown.is-open,
    .mobile-contact-dropdown.is-open {
        transform: translateY(0) !important;
        opacity: 1 !important;
        visibility: visible !important;
        pointer-events: auto !important;
    }

    .nav-contact-dropdown .nav-contact-item,
    .mobile-contact-dropdown .nav-contact-item {
        padding: 11px 12px;
        min-height: 46px;
    }
}

/* Extra-small Mobile Breakpoint (<= 360px) */
@media (max-width: 360px) {
    .brand-text {
        font-size: 1.1875rem;
    }

    .brand-logo {
        height: 30px;
    }

    .navbar-actions {
        gap: 6px;
    }

    .btn-nav-cta {
        padding: 7px 10px;
        font-size: 0.75rem;
        min-height: 38px;
    }

    .btn-nav-cta .cta-chat-icon {
        width: 14px;
        height: 14px;
    }

    .navbar-toggle {
        width: 38px;
        height: 38px;
        padding: 8px;
    }

    .nav-contact-dropdown,
    .mobile-contact-dropdown {
        width: min(270px, calc(100vw - 20px));
        max-width: calc(100vw - 20px);
        min-width: 220px;
    }
}