/* public/css/navbar.css */

:root {
    --navbar-height: 90px;
    --navbar-shrink-height: 70px;
    --navbar-bg: rgba(255, 255, 255, 0.8);
    --navbar-bg-dark: rgba(15, 23, 42, 0.85);
    /* Slate 900 with premium transparency */
    --navbar-accent: #3b82f6;
    --navbar-accent-glow: rgba(59, 130, 246, 0.3);
    --navbar-text-dark: #0f172a;
    --navbar-text-light: #f8fafc;
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-primary: 'Inter', sans-serif;
}

#header {
    font-family: var(--font-primary);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        height 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        background-color 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    z-index: 1100;
}

/* Glass Refraction Texture Overlay */
#header::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: -1;
}

#header.header-hidden {
    transform: translateY(-100%);
}

/* Removed dark mode header bg */

#header.navbar-shrink {
    height: var(--navbar-shrink-height);
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

/* Removed dark mode shrink bg */

/* Scroll Progress Bar */
.scroll-progress-container {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background: transparent;
}

.scroll-progress-bar {
    height: 100%;
    width: 0%;
    background: var(--accent-gradient);
    transition: width 0.1s ease-out;
    border-radius: 0 2px 2px 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.3s ease;
}

.navbar-logo {
    height: 48px;
    width: auto;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

#header.navbar-shrink .navbar-logo {
    height: 40px;
}

.navbar-brand:hover {
    transform: translateY(-1px);
}

.navbar-brand:hover .navbar-logo {
    transform: scale(1.08) rotate(-2deg);
    box-shadow: 0 6px 16px rgba(13, 110, 253, 0.2);
}

.nav-link {
    display: inline-flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 8px !important;
    /* Tight gap for side-by-side look */
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--nav-link-color) !important;
    position: relative;
    padding: 0.6rem 1.4rem !important;
    transition: all 0.4s var(--organic-easing);
    opacity: 0;
    transform: translateY(10px);
    letter-spacing: 0.3px;
    border-radius: 12px;
}

/* Fluid Hover Pill */
.nav-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.04);
    border-radius: 12px;
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
    transition: all 0.4s var(--organic-easing);
    z-index: -1;
}

.nav-link:hover::before {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* Elite Active Glow Effect */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    width: 20px;
    height: 3px;
    background: var(--navbar-accent);
    border-radius: 10px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform: translateX(-50%) scaleX(0);
    opacity: 0;
    box-shadow: 0 0 10px var(--navbar-accent-glow);
}

.nav-link.reveal {
    opacity: 0.7;
    transform: translateY(0);
}

.nav-link:hover {
    opacity: 1 !important;
    transform: translateY(-2px);
    color: var(--navbar-accent) !important;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1.5);
    opacity: 1;
}

/* Elite Animated Icons */
.nav-icon {
    font-size: 1.15rem;
    margin-right: 0;
    margin-bottom: 0;
    display: inline-block;
    transition: all 0.5s var(--organic-easing);
    transform: translateY(2px) scale(0.8);
    opacity: 0.6;
    color: var(--navbar-text-dark);
}

.nav-link:hover .nav-icon,
.nav-link.active .nav-icon {
    transform: translateY(0) scale(1.1);
    opacity: 1;
    color: var(--navbar-accent);
}

/* Breathing Demo Button */
.btn-demo {
    background: var(--navbar-accent);
    color: white !important;
    border: 1px solid var(--navbar-accent);
    box-shadow: 0 8px 25px var(--navbar-accent-glow);
    animation: breathing-glow 3s infinite alternate ease-in-out;
}

@keyframes breathing-glow {
    0% {
        box-shadow: 0 8px 15px var(--navbar-accent-glow);
        transform: scale(1);
    }

    100% {
        box-shadow: 0 12px 35px rgba(59, 130, 246, 0.5);
        transform: scale(1.02);
    }
}

/* Premium Navigation Buttons */
.btn-auth {
    border-radius: 14px;
    padding: 0.7rem 1.8rem;
    font-weight: 700;
    font-size: 0.85rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0;
    transform: translateY(10px);
}

.btn-auth.reveal {
    opacity: 1;
    transform: translateY(0);
}

.btn-login {
    color: var(--nav-link-color);
    border: 1px solid var(--glass-border);
    background: transparent;
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Cleaned up button states */

.btn-demo {
    background: var(--navbar-accent);
    color: white !important;
    border: 1px solid var(--navbar-accent);
    box-shadow: 0 8px 25px var(--navbar-accent-glow);
}

.btn-demo:hover {
    background: transparent;
    color: var(--navbar-accent) !important;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 30px var(--navbar-accent-glow);
}

/* Advanced Mobile Menu */
@media (max-width: 991.98px) {
    #header {
        height: 70px;
    }

    .navbar-collapse {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--navbar-bg);
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        padding: 40px 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
        transition: all 0.4s ease-in-out;
        opacity: 0;
        visibility: hidden;
        transform: translateY(20px);
        border: none;
    }

    .navbar-collapse.show {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .navbar-nav {
        width: 100%;
        text-align: center;
        margin-bottom: 30px;
    }

    .nav-link {
        font-size: 1.5rem;
        padding: 15px 0 !important;
        border: none !important;
    }

    .nav-link::after {
        bottom: 10px;
    }

    .btn-auth {
        width: 100%;
        max-width: 300px;
        margin: 10px 0;
        font-size: 1.1rem;
    }
}