/* ─── NAVBAR SPRITES & ANIMATIONS ─── */

/* Animated gradient bottom border — tuned to logo blue palette */
.navbar {
    position: relative;
    overflow: hidden;
    border-bottom: none !important;
}
.navbar::after {
    content: ;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(47, 96, 160, 0.08) 15%,
        rgba(64, 128, 198, 0.12) 30%,
        rgba(110, 202, 198, 0.12) 50%,
        rgba(64, 128, 198, 0.10) 65%,
        rgba(47, 96, 160, 0.08) 85%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: nav-border-dance 6s ease-in-out infinite;
    pointer-events: none;
    z-index: 2;
}
@keyframes nav-border-dance {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Brand logo glow pulse + subtle float — tuned to logo blue */
.mti-nav-logo {
    animation: nav-logo-glow 3s ease-in-out infinite, nav-logo-float 4s ease-in-out infinite;
    filter: drop-shadow(0 0 2px rgba(47, 96, 160, 0.3));
    transition: filter 0.3s ease, transform 0.3s ease;
}
.mti-nav-logo:hover {
    filter: drop-shadow(0 0 8px rgba(64, 128, 198, 0.5));
    transform: scale(1.04);
}
@keyframes nav-logo-glow {
    0%, 100% { filter: drop-shadow(0 0 2px rgba(47, 96, 160, 0.2)); }
    50%      { filter: drop-shadow(0 0 8px rgba(64, 128, 198, 0.5)); }
}
@keyframes nav-logo-float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-2px); }
}
.mti-nav-logo:hover {
    animation: nav-logo-glow 1.5s ease-in-out infinite, nav-logo-float 2s ease-in-out infinite !important;
}

/* Brand text shimmer — steel blue → bright blue → turquoise (logo-derived) */
.navbar-brand .brand-label {
    background: linear-gradient(90deg, #e6edf3, #4080c6, #6ecac6, #2f60a0, #e6edf3);
    background-size: 400% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: brand-label-shimmer 8s ease-in-out infinite;
    font-weight: 700;
    letter-spacing: 0.02em;
}
@keyframes brand-label-shimmer {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Nav link hover glow + animated underline — logo blue palette */
.navbar .nav-link {
    position: relative;
    transition: color 0.3s ease, text-shadow 0.3s ease, transform 0.2s ease;
}
.navbar .nav-link::after {
    content: ;
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #4080c6, #6ecac6, transparent);
    transition: width 0.3s ease, left 0.3s ease;
    border-radius: 2px;
    opacity: 0.6;
}
.navbar .nav-link:hover {
    text-shadow: 0 0 8px rgba(64, 128, 198, 0.3);
    color: #fff;
    transform: translateY(-1px);
}
.navbar .nav-link:hover::after {
    width: 80%;
    left: 10%;
}
.navbar .nav-link:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}
.navbar .nav-link.active {
    text-shadow: 0 0 12px rgba(47, 96, 160, 0.25);
}
.navbar .nav-link.active::after {
    width: 80%;
    left: 10%;
    background: linear-gradient(90deg, transparent, #4080c6, transparent);
    opacity: 0.8;
}

/* Dropdown menu glass effect */
.navbar .dropdown-menu {
    border: 1px solid rgba(64, 128, 198, 0.15);
    background: rgba(13, 17, 23, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(64, 128, 198, 0.1);
    animation: dropdown-fade 0.25s ease-out;
    overflow: hidden;
}
@keyframes dropdown-fade {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Dropdown items staggered + icon slide */
.navbar .dropdown-item {
    transition: background 0.2s ease, color 0.2s ease, padding-left 0.25s ease, transform 0.2s ease;
    animation: dropdown-item-in 0.3s ease-out both;
}
.navbar .dropdown-item:nth-child(1) { animation-delay: 0.02s; }
.navbar .dropdown-item:nth-child(2) { animation-delay: 0.04s; }
.navbar .dropdown-item:nth-child(3) { animation-delay: 0.06s; }
.navbar .dropdown-item:nth-child(4) { animation-delay: 0.08s; }
.navbar .dropdown-item:nth-child(5) { animation-delay: 0.10s; }
.navbar .dropdown-item:nth-child(6) { animation-delay: 0.12s; }
.navbar .dropdown-item:nth-child(7) { animation-delay: 0.14s; }
.navbar .dropdown-item:nth-child(8) { animation-delay: 0.16s; }
.navbar .dropdown-item:nth-child(9) { animation-delay: 0.18s; }
.navbar .dropdown-item:nth-child(10) { animation-delay: 0.20s; }
@keyframes dropdown-item-in {
    from { opacity: 0; transform: translateX(-8px); }
    to   { opacity: 1; transform: translateX(0); }
}
.navbar .dropdown-item:hover {
    background: linear-gradient(90deg, rgba(64, 128, 198, 0.08), transparent);
    color: #6ecac6;
    padding-left: 1.8rem;
    transform: translateX(2px);
}
.navbar .dropdown-item i {
    transition: transform 0.2s ease, color 0.2s ease;
}
.navbar .dropdown-item:hover i {
    transform: scale(1.2);
    color: #4080c6;
}

/* API badge glow — logo blue palette */
.api-badge {
    position: relative;
    transition: box-shadow 0.3s ease, transform 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
    padding: 0.2rem 0.6rem;
    border: 1px solid rgba(64, 128, 198, 0.2);
    border-radius: 6px;
    text-decoration: none;
    color: #4080c6;
    font-size: 0.82rem;
    font-weight: 500;
    background: rgba(64, 128, 198, 0.04);
}
.api-badge:hover {
    box-shadow: 0 0 16px rgba(64, 128, 198, 0.25), inset 0 0 12px rgba(64, 128, 198, 0.04);
    border-color: #6ecac6;
    transform: translateY(-1px);
    color: #fff;
}
.api-badge .api-version {
    animation: api-version-pulse 3s ease-in-out infinite;
}
@keyframes api-version-pulse {
    0%, 100% { opacity: 0.5; }
    50%      { opacity: 1; }
}

/* MTI Business badge — pulsing offline indicator */
.navbar .badge .offline-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #f85149;
    margin-right: 3px;
    animation: offline-pulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(248, 81, 73, 0.3);
}
@keyframes offline-pulse {
    0%, 100% { box-shadow: 0 0 4px rgba(248, 81, 73, 0.2); opacity: 0.7; }
    50%      { box-shadow: 0 0 12px rgba(248, 81, 73, 0.5); opacity: 1; }
}

/* Notification icon subtle pulse */
.navbar .fa-bell {
    animation: notify-pulse 4s ease-in-out infinite;
}
@keyframes notify-pulse {
    0%, 100% { opacity: 0.8; }
    50%      { opacity: 1; text-shadow: 0 0 6px rgba(110, 202, 198, 0.2); }
}

/* Search form subtle glow */
.navbar input[type="search"] {
    transition: border-color 0.3s ease, box-shadow 0.3s ease, width 0.3s ease;
    background: rgba(255, 255, 255, 0.04) !important;
}
.navbar input[type="search"]:focus {
    border-color: #4080c6;
    box-shadow: 0 0 8px rgba(64, 128, 198, 0.2);
    width: 200px !important;
}

/* Dark mode toggle button */
.navbar .btn-outline-light {
    transition: all 0.3s ease;
    border-radius: 8px;
}
.navbar .btn-outline-light:hover {
    box-shadow: 0 0 12px rgba(64, 128, 198, 0.3);
    border-color: #4080c6;
    background: rgba(64, 128, 198, 0.06);
}
.navbar .btn-outline-light:active {
    transform: scale(0.92);
}

/* ─── FLOATING EMBER PARTICLES — steel blue → turquoise ─── */
.navbar .navbar-nav::before {
    content: ;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    background-image:
        radial-gradient(1px 1px at 8% 80%, rgba(47, 96, 160, 0.15), transparent),
        radial-gradient(1.5px 1.5px at 20% 30%, rgba(110, 202, 198, 0.10), transparent),
        radial-gradient(1px 1px at 35% 90%, rgba(64, 128, 198, 0.12), transparent),
        radial-gradient(1px 1px at 48% 25%, rgba(47, 96, 160, 0.08), transparent),
        radial-gradient(1.5px 1.5px at 62% 70%, rgba(110, 202, 198, 0.13), transparent),
        radial-gradient(1px 1px at 78% 40%, rgba(64, 128, 198, 0.09), transparent),
        radial-gradient(1px 1px at 92% 85%, rgba(47, 96, 160, 0.10), transparent);
    animation: ember-float 12s ease-in-out infinite;
}
@keyframes ember-float {
    0%   { transform: translateY(0) translateX(0); opacity: 0.6; }
    25%  { transform: translateY(-4px) translateX(2px); opacity: 0.8; }
    50%  { transform: translateY(-8px) translateX(-1px); opacity: 0.4; }
    75%  { transform: translateY(-3px) translateX(3px); opacity: 0.7; }
    100% { transform: translateY(0) translateX(0); opacity: 0.6; }
}

/* ─── SPARKLE SPRITE DOTS — logo-derived blue palette ─── */
.navbar {
    position: relative;
    overflow: hidden;
}
.navbar::before {
    content: ;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
        radial-gradient(1.5px 1.5px at 12% 30%, rgba(47, 96, 160, 0.12), transparent),
        radial-gradient(1px 1px at 28% 70%, rgba(64, 128, 198, 0.08), transparent),
        radial-gradient(1.5px 1.5px at 45% 20%, rgba(110, 202, 198, 0.10), transparent),
        radial-gradient(1px 1px at 60% 80%, rgba(47, 96, 160, 0.06), transparent),
        radial-gradient(1.5px 1.5px at 75% 40%, rgba(64, 128, 198, 0.10), transparent),
        radial-gradient(1px 1px at 90% 60%, rgba(110, 202, 198, 0.08), transparent),
        radial-gradient(1px 1px at 5% 65%, rgba(47, 96, 160, 0.06), transparent),
        radial-gradient(1.5px 1.5px at 55% 90%, rgba(64, 128, 198, 0.06), transparent),
        radial-gradient(1px 1px at 80% 15%, rgba(110, 202, 198, 0.08), transparent),
        radial-gradient(1px 1px at 35% 45%, rgba(47, 96, 160, 0.06), transparent);
    animation: nav-sprite-drift 20s linear infinite;
}
@keyframes nav-sprite-drift {
    0%   { transform: translateX(0) translateY(0); }
    25%  { transform: translateX(3px) translateY(-2px); }
    50%  { transform: translateX(-2px) translateY(3px); }
    75%  { transform: translateX(1px) translateY(-1px); }
    100% { transform: translateX(0) translateY(0); }
}

/* Ensure navbar content stays above sprites */
.navbar .container,
.navbar .navbar-brand,
.navbar .navbar-collapse {
    position: relative;
    z-index: 1;
}

/* Nav divider dot glow */
.navbar .nav-divider {
    width: 1px;
    height: 20px;
    background: linear-gradient(180deg, transparent, rgba(64, 128, 198, 0.15), transparent);
    margin: 0 0.5rem;
}

/* ─── LIGHT MODE ─── */
[data-bs-theme="light"] .navbar .dropdown-menu {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-color: rgba(64, 128, 198, 0.2);
}
[data-bs-theme="light"] .navbar .nav-link:hover {
    color: #1a1a2e;
}
[data-bs-theme="light"] .navbar-brand .brand-label {
    background: linear-gradient(90deg, #1a1a2e, #2f60a0, #4080c6, #1a1a2e);
    background-size: 400% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
[data-bs-theme="light"] .navbar::before {
    opacity: 0.3;
}
[data-bs-theme="light"] .navbar input[type="search"] {
    background: rgba(0, 0, 0, 0.03) !important;
}