/* Shared header styles */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    min-height: var(--navbar-height, 70px);
    z-index: 1000;
    backdrop-filter: blur(15px);
    background: rgba(10, 15, 29, 0.7);
    transition: var(--transition-slow);
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.navbar.scrolled {
    background: rgba(10, 15, 29, 0.9);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 40px var(--glow-blue);
    border-bottom-color: rgba(59, 130, 246, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-slow);
}

.logo-icon {
    width: 48px;
    height: 48px;
    display: block;
    object-fit: contain;
    transition: var(--transition-slow);
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.45)) drop-shadow(0 0 18px rgba(16, 185, 171, 0.35));
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    transition: var(--transition-slow);
    display: flex;
    align-items: center;
    line-height: 1;
}

.logo:hover {
    transform: translateY(-3px);
}

.logo:hover .logo-icon {
    filter: drop-shadow(0 0 14px rgba(16, 185, 171, 0.6)) drop-shadow(0 0 26px rgba(59, 130, 246, 0.55));
    transform: rotate(5deg) scale(1.05);
}

.logo:hover .logo-text {
    color: var(--accent-cyan);
    text-shadow: 0 0 20px var(--glow-cyan);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex: 1;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    justify-content: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    transition: var(--transition-slow);
    padding: 0.5rem 0;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 0 10px var(--glow-cyan);
}

.nav-link:hover {
    color: var(--text-primary);
    text-shadow: 0 0 15px var(--glow-cyan);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-buttons {
    display: flex;
    gap: 1rem;
    margin-left: auto;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, var(--glow-intense) 0%, transparent 70%);
    transition: var(--transition-slow);
    transform: translate(-50%, -50%);
}

.btn:hover::before {
    width: 150%;
    height: 150%;
}

.btn-secondary {
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    background: transparent;
}

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.15);
    transform: translateY(-4px);
    border-color: var(--accent-blue);
    box-shadow: 0 10px 35px var(--glow-blue), inset 0 0 20px rgba(59, 130, 246, 0.1);
}

.btn-primary {
    color: white;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    border: none;
    position: relative;
    z-index: 1;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    opacity: 0;
    transition: var(--transition-slow);
    z-index: -1;
    border-radius: 8px;
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px var(--glow-cyan), 0 0 60px var(--glow-blue);
    filter: brightness(1.15);
}

.btn-primary:hover::after {
    opacity: 1;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 0.5rem;
    background: transparent;
    border: none;
    appearance: none;
    -webkit-appearance: none;
    color: inherit;
    border-radius: 10px;
    -webkit-tap-highlight-color: transparent;
}

.mobile-toggle:focus-visible {
    background: rgba(16, 185, 171, 0.12);
}

.nav-overlay {
    display: none;
}

body.nav-open {
    overflow: hidden;
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-medium);
}

.mobile-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 768px) {
    .nav-menu {
        display: flex;
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: min(82vw, 340px);
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
        background: rgba(10, 15, 29, 0.98);
        padding: calc(var(--navbar-height) + 1.5rem) 1.5rem calc(2rem + env(safe-area-inset-bottom));
        border-left: 1px solid rgba(148, 163, 184, 0.18);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55), 0 0 40px var(--glow-blue);
        backdrop-filter: blur(18px);
        transform: translateX(110%);
        opacity: 0;
        pointer-events: none;
        overflow-y: auto;
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
        transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.4s ease;
        z-index: 1050;
    }

    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links {
        flex-direction: column;
        gap: 1.25rem;
        width: 100%;
        align-items: flex-start;
    }

    .nav-link {
        font-size: 1.05rem;
    }

    .nav-buttons {
        flex-direction: column;
        width: 100%;
        margin-left: 0;
    }

    .nav-buttons .btn {
        width: 100%;
        text-align: center;
    }

    .mobile-toggle {
        display: flex;
        z-index: 1100;
    }

    .nav-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(5, 8, 15, 0.65);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.4s ease;
        z-index: 1040;
        backdrop-filter: blur(3px);
    }

    .nav-overlay.active {
        opacity: 1;
        pointer-events: auto;
    }
}