/* ==============================================
   NAVBAR
   ============================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    background-color: rgba(15, 34, 71, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    border-bottom-color: rgba(196, 154, 42, 0.2);
}

[data-theme="dark"] .navbar {
    background-color: rgba(4, 13, 24, 0.97);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* ── Logo ─────────────────────────────────────── */
.navbar__logo {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    text-decoration: none;
    flex-shrink: 0;
}
.navbar__logo:hover { text-decoration: none; }
.navbar__logo:hover .navbar__logo-name { color: var(--accent-light); }

.navbar__logo-mark {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
}
.navbar__logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}
.navbar__logo-name {
    font-family: var(--font-heading);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text-inverse);
    transition: color var(--transition-fast);
}
.navbar__logo-title {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.55);
    font-family: var(--font-body);
    letter-spacing: 0.03em;
}

/* ── Nav Links ────────────────────────────────── */
.navbar__nav {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
}
.nav-link {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.75);
    padding: var(--sp-2) var(--sp-3);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition:
        color var(--transition-fast),
        background-color var(--transition-fast);
    position: relative;
}
.nav-link:hover,
.nav-link.active {
    color: var(--text-inverse);
    background-color: rgba(255, 255, 255, 0.08);
    text-decoration: none;
}
.nav-link.active {
    color: var(--accent-light);
    background-color: rgba(196, 154, 42, 0.12);
}
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: var(--sp-3);
    right: var(--sp-3);
    height: 2px;
    background: var(--accent);
    border-radius: var(--radius-full);
}

/* ── Actions (dark toggle + hamburger) ────────── */
.navbar__actions {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
}

.dark-toggle {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast),
        border-color var(--transition-fast);
}
.dark-toggle:hover {
    background: rgba(196, 154, 42, 0.2);
    border-color: rgba(196, 154, 42, 0.4);
    color: var(--accent-light);
}
.dark-toggle .fa-moon { display: block; }
.dark-toggle .fa-sun  { display: none; }
[data-theme="dark"] .dark-toggle .fa-moon { display: none; }
[data-theme="dark"] .dark-toggle .fa-sun  { display: block; }

.nav-hamburger {
    display: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-inverse);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: var(--text-base);
    transition: background-color var(--transition-fast);
}
.nav-hamburger:hover { background: rgba(255, 255, 255, 0.15); }

/* ── Mobile Menu ──────────────────────────────── */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: rgba(10, 22, 40, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--sp-4);
    flex-direction: column;
    gap: var(--sp-1);
}
.mobile-menu.open { display: flex; }

.mobile-menu .nav-link {
    display: block;
    padding: var(--sp-3) var(--sp-4);
    font-size: var(--text-base);
    border-radius: var(--radius-md);
}

/* ── Responsive ───────────────────────────────── */
@media (max-width: 768px) {
    .navbar__nav { display: none; }
    .nav-hamburger { display: flex; }
    .navbar__logo-title { display: none; }
}
@media (max-width: 400px) {
    .navbar__logo-name { font-size: var(--text-sm); }
}