/* ===================================================
   COMPONENTS - Reusable UI Components
   =================================================== */

/* ─────────────────────────────────────────────────
   NAVBAR - Enhanced with Animations
   ───────────────────────────────────────────────── */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    z-index: var(--z-sticky);
    transition: var(--transition-base);
    animation: navbarSlideDown 0.8s var(--ease-out-expo) forwards;
    animation-delay: 0s;
    opacity: 0;
    transform: translateY(-100%);
}

@keyframes navbarSlideDown {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar.scrolled {
    background: var(--bg-overlay);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px hsla(0, 0%, 0%, 0.3);
}

.nav-container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo with Gradient Animation */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    transition: var(--transition-fast);
    position: relative;
}

.logo:hover {
    color: var(--text-primary);
    transform: scale(1.05);
}

.logo-bracket {
    color: var(--color-brand-primary);
    transition: var(--transition-fast);
}

.logo:hover .logo-bracket {
    text-shadow: 0 0 20px var(--color-brand-primary);
}

.logo-text {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

/* Nav Links with Stagger Animation */
.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-10);
}

.nav-link {
    position: relative;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    padding-block: var(--space-2);
    transition: var(--transition-fast);
    animation: navLinkFadeIn 0.5s var(--ease-out-expo) forwards;
    opacity: 0;
    transform: translateY(-10px);
}

.nav-links li:nth-child(1) .nav-link {
    animation-delay: 0.2s;
}

.nav-links li:nth-child(2) .nav-link {
    animation-delay: 0.3s;
}

.nav-links li:nth-child(3) .nav-link {
    animation-delay: 0.4s;
}

.nav-links li:nth-child(4) .nav-link {
    animation-delay: 0.5s;
}

.nav-links li:nth-child(5) .nav-link {
    animation-delay: 0.6s;
}

.nav-links li:nth-child(6) .nav-link {
    animation-delay: 0.7s;
}

@keyframes navLinkFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-brand);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

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

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: var(--space-2);
    z-index: var(--z-modal);
}

.hamburger span {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    transform-origin: center;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ─────────────────────────────────────────────────
   BACK TO TOP - Enhanced
   ───────────────────────────────────────────────── */

.back-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-brand);
    border-radius: var(--radius-xl);
    color: var(--bg-base);
    font-size: var(--text-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
    transition: var(--transition-base);
    z-index: var(--z-elevated);
    box-shadow: var(--shadow-glow);
}

.back-to-top::before {
    content: '';
    position: absolute;
    inset: -4px;
    background: var(--gradient-brand);
    border-radius: var(--radius-xl);
    opacity: 0.3;
    filter: blur(15px);
    z-index: -1;
    transition: var(--transition-base);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-glow-intense);
    color: var(--bg-base);
}

.back-to-top:hover::before {
    opacity: 0.5;
    filter: blur(20px);
}

/* ─────────────────────────────────────────────────
   FOOTER - Enhanced
   ───────────────────────────────────────────────── */

.footer {
    background: var(--bg-elevated);
    border-top: 1px solid var(--glass-border);
    padding-block: var(--space-16);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 1px;
    background: var(--gradient-brand);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
    text-align: center;
}

.footer-logo {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    transition: var(--transition-fast);
}

.footer-logo:hover {
    transform: scale(1.05);
}

.footer-text {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: var(--text-lg);
    transition: var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-brand-primary);
    border-color: var(--color-brand-primary);
    color: var(--bg-base);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.footer-bottom {
    margin-top: var(--space-8);
    padding-top: var(--space-8);
    border-top: 1px solid var(--glass-border);
}

.copyright {
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

/* ─────────────────────────────────────────────────
   TAG / BADGE COMPONENT
   ───────────────────────────────────────────────── */

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: hsla(161, 62%, 55%, 0.1);
    border: 1px solid hsla(161, 62%, 55%, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--color-brand-primary);
    transition: var(--transition-fast);
}

.tag:hover {
    background: hsla(161, 62%, 55%, 0.15);
    border-color: hsla(161, 62%, 55%, 0.3);
}

.tag i {
    font-size: 0.7em;
}

/* ─────────────────────────────────────────────────
   TOOLTIP
   ───────────────────────────────────────────────── */

[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    pointer-events: none;
    z-index: var(--z-elevated);
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ─────────────────────────────────────────────────
   DIVIDER
   ───────────────────────────────────────────────── */

.divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg,
            transparent,
            var(--glass-border),
            transparent);
}

.divider--vertical {
    width: 1px;
    height: 100%;
}

/* ─────────────────────────────────────────────────
   FLUTTER ICON SVG (Fallback)
   ───────────────────────────────────────────────── */

.flutter-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.flutter-icon svg {
    width: 1em;
    height: 1em;
    fill: currentColor;
}

/* ─────────────────────────────────────────────────
   THEME TOGGLE - Navbar Button
   ───────────────────────────────────────────────── */

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-base);
    margin-right: var(--space-4);
    /* Space before hamburger */
    margin-left: auto;
    /* Push to right if needed */
    position: relative;
    overflow: hidden;
}

/* Adjust margin when inside nav-links or container */
@media (min-width: 769px) {
    .theme-toggle {
        margin-left: var(--space-6);
        margin-right: 0;
    }
}

.theme-toggle:hover {
    background: var(--bg-surface);
    color: var(--color-brand-primary);
    border-color: var(--color-brand-primary);
    box-shadow: 0 0 15px hsla(161, 75%, 50%, 0.2);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle i {
    font-size: var(--text-lg);
    transition: transform 0.5s var(--ease-elastic);
}

/* Animation trigger class */
.theme-toggle.animate i {
    transform: rotate(360deg) scale(1.2);
}