/**
 * ============================================================
 * JONATHAN CASTRO - SHARED NAVIGATION STYLES v2
 * ============================================================
 * Global nav + design tokens shared across all pages.
 * Tokens are the palette for the whole site, not just the nav.
 * ============================================================
 */

/* =============================================
   DESIGN TOKENS
   ============================================= */
:root {
    /* Ember palette */
    --ember:         #ff6b35;
    --ember-bright:  #ff8551;
    --ember-deep:    #d44a20;
    --ember-glow:    rgba(255, 107, 53, 0.45);
    --ember-soft:    rgba(255, 107, 53, 0.12);

    /* Surfaces */
    --bg-deep:       #050505;
    --bg-base:       #0a0a0a;
    --bg-elevated:   #121212;
    --nav-bg:        rgba(10, 10, 10, 0.78);
    --nav-bg-solid:  rgba(10, 10, 10, 0.95);

    /* Text */
    --text:          #f4f4f5;
    --text-dim:      #a0a0a6;
    --text-faint:    #6b6b72;

    /* Borders */
    --border:        rgba(255, 255, 255, 0.08);
    --border-ember:  rgba(255, 107, 53, 0.28);

    /* Motion */
    --ease:          cubic-bezier(0.22, 1, 0.36, 1);
    --fast:          180ms var(--ease);
    --med:           280ms var(--ease);
    --slow:          420ms var(--ease);

    /* Layout */
    --nav-height:    72px;
    --nav-pad:       1.5rem;

    /* Type */
    --font-display:  'Rajdhani', 'Segoe UI', system-ui, sans-serif;
    --font-mono:     'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
    --font-body:     'Inter', 'Segoe UI', system-ui, sans-serif;
}

/* =============================================
   NAV CONTAINER
   ============================================= */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(12px) saturate(140%);
    -webkit-backdrop-filter: blur(12px) saturate(140%);
    border-bottom: 1px solid var(--border);
    transition: background var(--med),
                border-color var(--med),
                box-shadow var(--med);
}

.main-nav.nav-scrolled {
    background: var(--nav-bg-solid);
    border-bottom-color: var(--border-ember);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.55),
                0 1px 0 var(--ember-soft) inset;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--nav-pad);
    height: var(--nav-height);
    gap: 1rem;
}

/* =============================================
   NAV LINKS
   ============================================= */
.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 0.55rem 1rem;
    color: var(--text);
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 0.92rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 6px;
    position: relative;
    transition: color var(--fast), background var(--fast),
                transform var(--fast), text-shadow var(--fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg,
                transparent, var(--ember) 30%, var(--ember) 70%, transparent);
    transition: width var(--med), left var(--med);
}

.nav-link:hover {
    color: var(--ember-bright);
    background: var(--ember-soft);
    transform: translateY(-1px);
    text-shadow: 0 0 12px var(--ember-glow);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 75%;
    left: 12.5%;
}

.nav-link.active {
    color: var(--ember);
    text-shadow: 0 0 10px var(--ember-glow);
}

.nav-link:focus-visible {
    outline: 2px solid var(--ember);
    outline-offset: 2px;
}

/* =============================================
   LOGO
   ============================================= */
.nav-logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    transition: transform var(--fast), filter var(--fast);
}

.nav-logo:hover {
    transform: scale(1.06);
    filter: drop-shadow(0 0 14px var(--ember-glow));
}

.nav-logo:focus-visible {
    outline: 2px solid var(--ember);
    outline-offset: 4px;
    border-radius: 50%;
}

.nav-logo img {
    height: 50px;
    width: auto;
    object-fit: contain;
    display: block;
}

/* =============================================
   MOBILE HAMBURGER
   ============================================= */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    padding: 8px;
    transition: border-color var(--fast), background var(--fast);
}

.mobile-menu-btn:hover {
    border-color: var(--ember);
    background: var(--ember-soft);
}

.mobile-menu-btn:focus-visible {
    outline: 2px solid var(--ember);
    outline-offset: 2px;
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform var(--med), opacity var(--fast), background var(--fast);
}

.mobile-menu-btn.menu-open .hamburger-line {
    background: var(--ember);
}

.mobile-menu-btn.menu-open .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.mobile-menu-btn.menu-open .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* =============================================
   RESPONSIVE - TABLET
   ============================================= */
@media (max-width: 1024px) {
    .nav-link { padding: 0.5rem 0.7rem; font-size: 0.82rem; letter-spacing: 0.06em; }
    .nav-container { padding: 0 1rem; }
}

/* =============================================
   RESPONSIVE - MOBILE
   ============================================= */
@media (max-width: 768px) {
    .mobile-menu-btn { display: flex; order: -1; }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--nav-bg-solid);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        padding: 0.5rem 0;
        gap: 0;
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--med), opacity var(--med), visibility var(--med);
        border-bottom: 1px solid var(--border-ember);
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
    }

    .nav-links.nav-open { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-item { width: 100%; }
    .nav-link { padding: 1rem 2rem; text-align: center; border-radius: 0; border-bottom: 1px solid var(--border); }
    .nav-link::after { display: none; }
    .nav-link:hover { transform: none; }
    .nav-logo img { height: 42px; }
}

/* =============================================
   UTILITIES
   ============================================= */
body {
    padding-top: var(--nav-height);
    background: var(--bg-base);
    color: var(--text);
    font-family: var(--font-body);
}

/* Hero pages (full-bleed video bg) - nav floats transparent until scroll */
body.no-nav-padding { padding-top: 0; }

body.no-nav-padding .main-nav {
    background: linear-gradient(to bottom, rgba(10, 10, 10, 0.6), transparent);
    border-bottom-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

body.no-nav-padding .main-nav.nav-scrolled {
    background: var(--nav-bg-solid);
    border-bottom-color: var(--border-ember);
    backdrop-filter: blur(12px) saturate(140%);
    -webkit-backdrop-filter: blur(12px) saturate(140%);
}

/* =============================================
   REDUCED MOTION
   ============================================= */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}