/* ===========================================
   ENTERPRISE NAVBAR — Refined Dark Command Bar
   Inspired by Linear, Vercel, Stripe
   =========================================== */

:root {
    --nb-bg: #090d16;
    --nb-surface: rgba(15, 20, 35, 0.85);
    --nb-border: rgba(255,255,255,0.05);
    --nb-text: rgba(255,255,255,0.82);
    --nb-text-dim: rgba(255,255,255,0.45);
    --nb-accent: #fbbf24;
    --nb-accent-glow: rgba(251,191,36,0.15);
    --nb-brand: #dd2476;
    --nb-hover: rgba(255,255,255,0.04);
    --nb-active: rgba(251,191,36,0.08);
    --nb-focus-ring: rgba(251,191,36,0.3);
    --dd-bg: rgba(13, 18, 30, 0.96);
    --dd-border: rgba(255,255,255,0.06);
    --dd-text: rgba(255,255,255,0.85);
    --dd-dim: rgba(255,255,255,0.4);
    --dd-hover: rgba(255,255,255,0.04);
    --dd-accent-bar: #dd2476;
    --dd-shadow: 0 0 0 1px rgba(255,255,255,0.04),
                 0 4px 8px rgba(0,0,0,0.3),
                 0 16px 40px -16px rgba(0,0,0,0.6);
    --transition: 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ========= NAVBAR SHELL ========= */
.modern-navbar {
    background: var(--nb-bg);
    position: sticky;
    top: 0;
    z-index: 1030;
    width: 100%;
    padding: 0;
    border-bottom: 1px solid var(--nb-border);
}

/* Subtle top accent line */
.modern-navbar::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(221,36,118,0.4) 20%,
        rgba(251,191,36,0.3) 50%,
        rgba(221,36,118,0.4) 80%,
        transparent 100%
    );
    opacity: 0.6;
}

/* Frosted glass background */
.modern-navbar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--nb-surface);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    z-index: -1;
}

.modern-navbar .container-fluid {
    padding: 0 2rem;
    position: relative;
}

/* ========= BRAND ========= */
.modern-navbar .navbar-brand {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.3px;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.65rem 0;
    transition: all var(--transition);
    margin-right: 1.5rem;
}

.modern-navbar .navbar-brand:hover {
    transform: none;
}

.modern-navbar .navbar-brand .brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    border-radius: 8px;
    font-size: 1.1rem;
    color: #0f172a;
    box-shadow: 0 0 16px rgba(251,191,36,0.25);
}

/* ========= TOGGLER ========= */
.modern-navbar .navbar-toggler {
    border: 1px solid rgba(255,255,255,0.08);
    padding: 0.4rem 0.65rem;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    transition: all var(--transition);
}

.modern-navbar .navbar-toggler:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
}

.modern-navbar .navbar-toggler:focus-visible {
    box-shadow: 0 0 0 3px var(--nb-focus-ring);
}

.modern-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ========= NAV ITEMS ========= */
.modern-navbar .navbar-nav {
    gap: 0;
}

.modern-navbar .nav-link {
    color: var(--nb-text) !important;
    font-weight: 500;
    font-size: 0.84rem;
    letter-spacing: 0.01em;
    padding: 0.5rem 0.7rem;
    border-radius: 7px;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    position: relative;
    margin: 0 0.05rem;
}

.modern-navbar .nav-link i {
    font-size: 0.95rem;
    opacity: 0.6;
    transition: all var(--transition);
}

.modern-navbar .nav-link:hover {
    background: var(--nb-hover);
    color: #fff !important;
}

.modern-navbar .nav-link:hover i {
    opacity: 0.9;
}

/* Active state */
.modern-navbar .nav-link.active {
    background: var(--nb-active);
    color: var(--nb-accent) !important;
    font-weight: 600;
}

.modern-navbar .nav-link.active i {
    opacity: 1;
    color: var(--nb-accent);
}

/* Active indicator dot */
.modern-navbar .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 3px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--nb-accent);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--nb-accent-glow);
}

/* ========= DROPDOWN TOGGLE ========= */
.modern-navbar .dropdown-toggle::after { display: none; }

.modern-navbar .nav-link.dropdown-toggle .dd-arrow {
    font-size: 0.5rem;
    opacity: 0.35;
    transition: all var(--transition);
    margin-left: 0.1rem;
}

.modern-navbar .nav-link.dropdown-toggle:hover .dd-arrow {
    opacity: 0.7;
}

.modern-navbar .nav-link.dropdown-toggle[aria-expanded="true"] {
    background: rgba(255,255,255,0.05);
}

.modern-navbar .nav-link.dropdown-toggle[aria-expanded="true"] .dd-arrow {
    opacity: 0.8;
    transform: rotate(180deg);
}

/* ========= DROPDOWN MENU ========= */
.modern-navbar .dropdown-menu {
    background: var(--dd-bg);
    backdrop-filter: saturate(200%) blur(40px);
    -webkit-backdrop-filter: saturate(200%) blur(40px);
    border: 1px solid var(--dd-border);
    border-radius: 12px;
    box-shadow: var(--dd-shadow);
    padding: 0.4rem;
    margin-top: 0.4rem;
    min-width: 230px;
    animation: dd-in 0.18s cubic-bezier(0.22, 1, 0.36, 1);
    transform-origin: top center;
}

@keyframes dd-in {
    from { opacity: 0; transform: translateY(-4px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Section header */
.modern-navbar .dropdown-header {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--dd-dim);
    padding: 0.5rem 0.75rem 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.modern-navbar .dropdown-header:first-child { padding-top: 0.25rem; }

.modern-navbar .dropdown-header i {
    font-size: 0.65rem;
    opacity: 0.5;
}

/* Divider */
.modern-navbar .dropdown-divider {
    margin: 0.25rem 0.5rem;
    border-color: rgba(255,255,255,0.04);
}

/* Item */
.modern-navbar .dropdown-item {
    color: var(--dd-text);
    padding: 0.5rem 0.7rem;
    border-radius: 7px;
    font-size: 0.83rem;
    font-weight: 450;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    transition: all var(--transition);
    position: relative;
    letter-spacing: 0.01em;
}

.modern-navbar .dropdown-item i {
    font-size: 0.95rem;
    width: 1.2rem;
    text-align: center;
    opacity: 0.5;
    transition: all var(--transition);
    flex-shrink: 0;
}

.modern-navbar .dropdown-item:hover {
    background: var(--dd-hover);
    color: #fff;
}

.modern-navbar .dropdown-item:hover i {
    opacity: 0.9;
    color: var(--dd-accent-bar);
}

.modern-navbar .dropdown-item:focus-visible {
    background: var(--dd-hover);
    outline: 2px solid var(--nb-focus-ring);
    outline-offset: -2px;
}

.modern-navbar .dropdown-item:active {
    background: rgba(255,255,255,0.08);
}

/* ========= AUTH ========= */
.nav-auth-wrapper { margin-left: auto; }

.modern-navbar .auth-link {
    color: var(--nb-text) !important;
    font-weight: 500;
    font-size: 0.82rem;
    letter-spacing: 0.01em;
    padding: 0.4rem 0.9rem;
    border-radius: 7px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.07);
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.modern-navbar .auth-link:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.12);
    color: #fff !important;
}

.modern-navbar .auth-link-login {
    background: linear-gradient(135deg, #ff512f, #dd2476);
    color: #fff !important;
    border: none;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(221,36,118,0.25);
    padding: 0.4rem 1.1rem;
}

.modern-navbar .auth-link-login:hover {
    box-shadow: 0 4px 16px rgba(221,36,118,0.4);
    transform: translateY(-1px);
}

.modern-navbar #logout {
    color: var(--nb-text) !important;
    font-weight: 500;
    font-size: 0.82rem;
    padding: 0.4rem 0.85rem;
    border-radius: 7px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.07);
    transition: all var(--transition);
}

.modern-navbar #logout:hover {
    background: rgba(239,68,68,0.12);
    border-color: rgba(239,68,68,0.25);
    color: #fca5a5 !important;
}

/* ========= SCROLLED STATE ========= */
.modern-navbar.scrolled {
    box-shadow: 0 1px 3px rgba(0,0,0,0.3),
                0 8px 24px -12px rgba(0,0,0,0.4);
}

/* ========= MOBILE ========= */
@media (max-width: 991px) {
    .modern-navbar .container-fluid { padding: 0 0.85rem; }

    .modern-navbar .navbar-collapse {
        background: rgba(9,13,22,0.98);
        backdrop-filter: saturate(200%) blur(30px);
        -webkit-backdrop-filter: saturate(200%) blur(30px);
        border: 1px solid rgba(255,255,255,0.05);
        border-radius: 12px;
        padding: 0.5rem;
        margin-top: 0.4rem;
        max-height: 78vh;
        overflow-y: auto;
        box-shadow: 0 16px 40px -16px rgba(0,0,0,0.6);
    }

    .modern-navbar .nav-link {
        padding: 0.55rem 0.75rem;
        font-size: 0.88rem;
    }

    .modern-navbar .dropdown-menu {
        background: transparent;
        border: none;
        box-shadow: none;
        padding: 0 0 0.25rem 1.25rem;
        margin: 0;
        animation: none;
    }

    .modern-navbar .dropdown-item {
        font-size: 0.85rem;
        padding: 0.45rem 0.65rem;
    }

    .modern-navbar .navbar-brand { font-size: 1.15rem; }
}