:root {
    --nav-primary: #0066CC;
    --nav-primary-dark: #0052a3;
    --nav-gradient-start: #0066CC;
    --nav-gradient-end: #0052ff;
    --nav-text: #ffffff;
    --nav-text-dark: #2c3e50;
    --nav-hover-glow: rgba(0, 102, 204, 0.3);
    --sidebar-bg: rgba(255, 255, 255, 0.95);
    --sidebar-shadow: rgba(0, 0, 0, 0.15);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

body.tn-menu-open {
    overflow: hidden;
}

.tn-desktop-nav,
.tn-sidebar {
    font-family: 'Poppins', sans-serif;
}

@media (min-width: 1100px) {
    .tn-desktop-nav {
        display: block;
        order: 5;
    }

    .tn-horizontal-list {
        display: flex;
        list-style: none;
        gap: 8px;
        align-items: center;
        margin: 0;
        padding: 0;
        height: 100%;
    }

    .tn-horizontal-list li {
        display: flex;
        align-items: center;
        height: 100%;
    }

    .tn-horizontal-list li a {
        position: relative;
        display: inline-block;
        text-decoration: none;
        color: var(--nav-text);
        font-weight: 600;
        font-size: 15px;
        padding: 10px 10px;
        border-radius: 12px;
        transition: var(--transition-smooth);
        white-space: nowrap;
        overflow: hidden;
    }

    .tn-horizontal-list li a::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        border-radius: 12px;
        opacity: 0;
        transition: var(--transition-smooth);
        z-index: -1;
    }

    .tn-horizontal-list li a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        width: 0;
        height: 3px;
        background: linear-gradient(90deg, transparent, var(--nav-primary-dark), transparent);
        transform: translateX(-50%);
        transition: var(--transition-smooth);
        border-radius: 2px;
    }

    .tn-horizontal-list li a:hover::before {
        opacity: 1;
        box-shadow: 0 4px 20px var(--nav-hover-glow);
    }

    .tn-horizontal-list li a:hover::after {
        width: 80%;
    }

    .tn-horizontal-list li a:hover {
        color: var(--nav-gradient-start);
        transform: translateY(-2px);
    }

    .tn-horizontal-list li a.active {
        background: linear-gradient(135deg, var(--nav-gradient) 0%, var(--nav-gradient-end) 100%);
        box-shadow: 0 4px 15px var(--nav-hover-glow);
    }

    .tn-horizontal-list li .btn-getstarted {
        color: white;
        font-weight: 700;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .tn-horizontal-list li .btn-getstarted:hover {
        transform: translateY(-3px);
    }

    .tn-menu-btn,
    .tn-sidebar,
    .tn-overlay {
        display: none !important;
    }
}

@media (min-width: 1100px) and (max-width: 1400px) {
    .tn-horizontal-list {
        gap: 6px;
    }

    .tn-horizontal-list li a {
        font-size: 14px;
        padding: 5px 5px;
    }
}

@media (max-width: 1099px) {
    .tn-desktop-nav {
        display: none;
    }

    .tn-menu-btn {
        position: relative;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        background: none;
        border: none;
        width: 44px;
        height: 44px;
        cursor: pointer;
        padding: 0;
        z-index: 100001;
        transition: var(--transition-smooth);
    }

    .tn-menu-btn:hover {
        transform: scale(1.1);
    }

    .tn-menu-btn i {
        display: none;
    }

    .tn-menu-btn::before,
    .tn-menu-btn::after,
    .tn-menu-btn span {
        content: '';
        position: absolute;
        width: 28px;
        height: 3px;
        background: linear-gradient(90deg, var(--nav-gradient-start), var(--nav-gradient-end));
        border-radius: 3px;
        transition: var(--transition-smooth);
    }

    .tn-menu-btn::before {
        top: 12px;
    }

    .tn-menu-btn span {
        top: 20px;
    }

    .tn-menu-btn::after {
        top: 28px;
    }

    .tn-menu-btn.active {
        display: none !important;
    }

    .tn-menu-btn.active::before {
        transform: translateY(8px) rotate(45deg);
    }

    .tn-menu-btn.active span {
        opacity: 0;
        transform: scale(0);
    }

    .tn-menu-btn.active::after {
        transform: translateY(-8px) rotate(-45deg);
    }

    .tn-sidebar {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        max-width: 85vw;
        height: 100vh;
        background: linear-gradient(135deg,
                rgba(255, 255, 255, 0.98) 0%,
                rgba(240, 245, 255, 0.95) 100%);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        z-index: 100000;
        transition: right 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        display: flex;
        flex-direction: column;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15);
        overflow-y: auto;
        overflow-x: hidden;
    }

    .tn-sidebar::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 4px;
        height: 100%;
        background: linear-gradient(180deg,
                var(--nav-gradient-start) 0%,
                var(--nav-gradient-end) 50%,
                var(--nav-gradient-start) 100%);
    }

    .tn-sidebar.tn-open {
        right: 0;
    }

    .tn-sidebar-header {
        position: relative;
        height: 70px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 20px;
        background: linear-gradient(135deg,
                rgba(0, 102, 204, 0.1) 0%,
                rgba(0, 82, 255, 0.05) 100%);
        border-bottom: 1px solid rgba(0, 102, 204, 0.1);
    }

    .tn-sidebar-title {
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 3px;
        color: var(--nav-primary);
        background: linear-gradient(135deg, var(--nav-gradient-start), var(--nav-gradient-end));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .tn-close-btn {
        display: flex !important;
        opacity: 1 !important;
        visibility: visible !important;
        position: relative;
        width: 36px;
        height: 36px;
        background: transparent;
        border: 2px solid var(--nav-primary);
        border-radius: 50%;
        color: var(--nav-primary);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 28px;
        font-weight: 300;
        line-height: 1;
        transition: var(--transition-smooth);
        flex-shrink: 0;
    }

    .tn-close-btn::before,
    .tn-close-btn::after {
        display: none !important;
    }

    .tn-close-btn:hover {
        transform: rotate(90deg) scale(1.1);
        background: var(--nav-primary);
        color: white;
    }

    .tn-close-btn:active {
        transform: rotate(90deg) scale(0.95);
    }

    .tn-nav-list {
        list-style: none;
        padding: 30px 0;
        margin: 0;
        flex: 1;
    }

    .tn-nav-list li {
        margin: 0;
        opacity: 0;
        transform: translateX(30px);
        animation: slideIn 0.4s ease-out forwards;
    }

    .tn-sidebar.tn-open .tn-nav-list li:nth-child(1) {
        animation-delay: 0.1s;
    }

    .tn-sidebar.tn-open .tn-nav-list li:nth-child(2) {
        animation-delay: 0.15s;
    }

    .tn-sidebar.tn-open .tn-nav-list li:nth-child(3) {
        animation-delay: 0.2s;
    }

    .tn-sidebar.tn-open .tn-nav-list li:nth-child(4) {
        animation-delay: 0.25s;
    }

    .tn-sidebar.tn-open .tn-nav-list li:nth-child(5) {
        animation-delay: 0.3s;
    }

    .tn-sidebar.tn-open .tn-nav-list li:nth-child(6) {
        animation-delay: 0.35s;
    }

    .tn-sidebar.tn-open .tn-nav-list li:nth-child(7) {
        animation-delay: 0.4s;
    }

    .tn-sidebar.tn-open .tn-nav-list li:nth-child(8) {
        animation-delay: 0.45s;
    }

    @keyframes slideIn {
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }

    .tn-nav-list li a {
        position: relative;
        display: block;
        padding: 16px 30px;
        color: var(--nav-text-dark);
        text-decoration: none;
        font-size: 16px;
        font-weight: 600;
        transition: var(--transition-smooth);
        overflow: hidden;
    }

    .tn-nav-list li a::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 0;
        height: 60%;
        background: linear-gradient(135deg, var(--nav-gradient-start), var(--nav-gradient-end));
        transition: var(--transition-smooth);
        border-radius: 0 10px 10px 0;
    }

    .tn-nav-list li a::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(90deg,
                rgba(0, 102, 204, 0.1) 0%,
                rgba(0, 82, 255, 0.05) 100%);
        opacity: 0;
        transition: var(--transition-smooth);
        z-index: -1;
    }

    .tn-nav-list li a:hover {
        color: var(--nav-primary);
        padding-left: 40px;
    }

    .tn-nav-list li a:hover::before {
        width: 5px;
    }

    .tn-nav-list li a:hover::after {
        opacity: 1;
    }

    .tn-nav-list li a.active {
        color: var(--nav-primary);
        background: linear-gradient(90deg,
                rgba(0, 102, 204, 0.15) 0%,
                rgba(0, 82, 255, 0.05) 100%);
        padding-left: 40px;
    }

    .tn-nav-list li a.active::before {
        width: 5px;
    }

    .tn-nav-list li a i {
        margin-right: 12px;
        font-size: 18px;
        transition: var(--transition-smooth);
    }

    .tn-nav-list li a:hover i {
        transform: scale(1.2) rotate(5deg);
    }

    .tn-nav-list li:not(:last-child) {
        border-bottom: 1px solid rgba(0, 102, 204, 0.08);
    }
}

@media (max-width: 480px) {
    .tn-sidebar {
        width: 280px;
    }

    .tn-nav-list li a {
        font-size: 15px;
        padding: 14px 25px;
    }

    .tn-menu-btn::before,
    .tn-menu-btn::after,
    .tn-menu-btn span {
        width: 24px;
    }
}

.tn-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center,
            rgba(0, 0, 0, 0.5) 0%,
            rgba(0, 0, 0, 0.7) 100%);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    z-index: 99999;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tn-overlay.tn-show {
    display: block;
    opacity: 1;
}


@keyframes subtlePulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(0, 102, 204, 0.4);
    }

    50% {
        box-shadow: 0 0 0 8px rgba(0, 102, 204, 0);
    }
}

.tn-menu-btn:not(.active) {
    animation: subtlePulse 2s infinite;
}

.tn-sidebar::-webkit-scrollbar {
    width: 6px;
}

.tn-sidebar::-webkit-scrollbar-track {
    background: rgba(0, 102, 204, 0.05);
}

.tn-sidebar::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--nav-gradient-start), var(--nav-gradient-end));
    border-radius: 10px;
}

.tn-sidebar::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--nav-gradient-end), var(--nav-gradient-start));
}

@media (prefers-color-scheme: dark) {
    .tn-sidebar {
        background: linear-gradient(135deg,
                rgba(30, 35, 45, 0.98) 0%,
                rgba(20, 25, 35, 0.95) 100%);
    }

    .tn-nav-list li a {
        color: #e0e0e0;
    }

    .tn-nav-list li a:hover,
    .tn-nav-list li a.active {
        color: #4d9fff;
    }

    .tn-sidebar::before {
        background: linear-gradient(180deg,
                #4d9fff 0%,
                #0066CC 50%,
                #4d9fff 100%);
    }
}

.tn-sidebar {
    background: linear-gradient(135deg,
            rgba(15, 23, 42, 0.98) 0%,
            rgba(30, 41, 59, 0.95) 100%);
    border-left: 2px solid #334155;
}

.tn-sidebar-header {
    background: linear-gradient(135deg,
            rgba(51, 65, 85, 0.5) 0%,
            rgba(30, 41, 59, 0.3) 100%);
    border-bottom: 1px solid #334155;
}

.tn-sidebar-header::after {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tn-nav-list li a {
    color: #cbd5e1;
}

.tn-nav-list li a::before {
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
}

.tn-nav-list li a:hover {
    color: #60a5fa;
    background: rgba(59, 130, 246, 0.1);
}

.tn-close-btn {
    background: linear-gradient(135deg, #1e293b, #334155);
    border: 1px solid #475569;
}

.tn-close-btn:hover {
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
}