/* ══════════════════════════════════════════
   styles.css — Global / Shared Styles
   Applies to ALL pages site-wide.

   Sections:
   1. CSS Variables
   2. Base / Reset
   3. Navbar
   4. Footer
   5. Responsive
══════════════════════════════════════════ */


/* ══════════════════════════════════════════
   1. CSS VARIABLES
══════════════════════════════════════════ */
:root {
    --teal:         #00b0f0;
    --teal2:        #00d4ff;
    --dark:         #090e12;
    --dark2:        #0d1720;
    --mid:          #122c34;
    --muted:        #7a8fa0;
    --border:       rgba(255, 255, 255, 0.08);
    --border-light: rgba(18, 44, 52, 0.07);
    --font-body:    'Manrope', sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
}


/* ══════════════════════════════════════════
   2. BASE / RESET
══════════════════════════════════════════ */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background: #f4f6f8;
    color: var(--dark2);
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
}


/* ══════════════════════════════════════════
   3. NAVBAR
   Default state: fully transparent, white text.
   After scrolling past 70px, .scrolled is added
   by js/global.js and a white background fades in.
══════════════════════════════════════════ */

/* ── Base Bar (transparent over hero) ── */
.navbar {
    background: transparent;
    box-shadow: none;
    border-bottom: 1px solid transparent;
    transition: none;
}

.collapse.navbar-collapse {
    flex-grow: 1;
}

/* ── Nav Links (white by default) ── */
.navbar-nav {
    gap: 0.5rem;
    margin-left: auto;
    margin-right: auto;
}

.navbar-nav .nav-link {
    color: #ffffff !important;
    font-size: 1.05rem;
    font-weight: 500;
    padding: 0.75rem 1.2rem !important;
    border-radius: 6px;
    transition: background 0.3s ease, transform 0.2s ease;
    position: relative;
}

/* Animated underline on hover / active */
.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: 0;
    left: 0;
    background: var(--teal);
    transition: width 0.3s ease;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link[aria-current="page"]::after {
    width: 100%;
}

.navbar-nav .nav-link:hover {
    color: var(--teal) !important;
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.navbar-nav .nav-link[aria-current="page"] {
    color: var(--teal) !important;
    transform: translateY(-2px);
}

/* ── Logo / Wordmark ── */
.navbar-brand {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.03);
    opacity: 0.85;
}

.brand-wordmark {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #ffffff !important;
    text-decoration: none;
    line-height: 1;
    padding-left: 12px;
    transition: transform 0.3s ease;
}

.brand-wordmark .brand-sub {
    font-weight: 400;
    opacity: 0.75;
    margin-left: 3px;
}

#site-header.scrolled .brand-wordmark {
    color: var(--mid) !important;
}

/* ── Scrolled State (toggled by js/global.js) ── */
#site-header {
    padding: 1.1rem 1.5rem;
}

#site-header.scrolled {
    background: #ffffff !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    border-bottom-color: rgba(0, 0, 0, 0.08);
    padding: 0.7rem 1.5rem;
}

#site-header.scrolled .navbar-nav .nav-link {
    color: var(--mid) !important;
    transition: background 0.3s ease, transform 0.2s ease;
}

#site-header.scrolled .navbar-nav .nav-link:hover {
    color: var(--teal) !important;
    background: rgba(0, 176, 240, 0.08);
}

/* ── Mobile Toggle ── */
.navbar-toggler-icon {
    filter: invert(1);
}

#site-header.scrolled .navbar-toggler-icon {
    filter: none;
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: 2px solid var(--teal);
}


/* ══════════════════════════════════════════
   4. FOOTER
══════════════════════════════════════════ */
.footer {
    background: linear-gradient(135deg, var(--mid), var(--mid));
}

.footer h5    { color: #ffffff; }
.footer p,
.footer li,
.footer small { color: var(--muted); }

.footer-link {
    color: #c6cad8;
    text-decoration: none;
}

.footer-link:hover {
    color: var(--teal);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}


/* ══════════════════════════════════════════
   5. RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 991px) {

    .navbar-nav {
        padding: 1rem 0;
        gap: 0.3rem;
    }

    .navbar-nav .nav-link {
        text-align: center;
        margin: 0.2rem 0;
    }

    /* Mobile menu open / collapsing states.
       CSS :has() handles natively; .menu-open is the JS fallback. */

    #site-header:has(.navbar-collapse.show),
    #site-header:has(.navbar-collapse.collapsing),
    #site-header.menu-open {
        background: #ffffff !important;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12) !important;
        transition: none !important;
    }

    #site-header:has(.navbar-collapse.show) .navbar-nav .nav-link,
    #site-header:has(.navbar-collapse.collapsing) .navbar-nav .nav-link,
    #site-header.menu-open .navbar-nav .nav-link {
        color: var(--mid) !important;
    }

    #site-header:has(.navbar-collapse.show) .brand-wordmark,
    #site-header:has(.navbar-collapse.collapsing) .brand-wordmark,
    #site-header.menu-open .brand-wordmark {
        color: var(--mid) !important;
    }

    #site-header:has(.navbar-collapse.show) .navbar-toggler-icon,
    #site-header:has(.navbar-collapse.collapsing) .navbar-toggler-icon,
    #site-header.menu-open .navbar-toggler-icon {
        filter: none;
    }

}