/* ==========================================================================
   Nav Pro — Premium desktop navigation (Stripe / Linear / Vercel style)
   BEM architecture, solid SaaS UI, GPU-accelerated animations
   ========================================================================== */

:root {
    --nav-pro-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --nav-pro-text: #0f172a;
    --nav-pro-text-muted: #64748b;
    --nav-pro-bg: #ffffff;
    --nav-pro-panel-bg: #ffffff;
    --nav-pro-panel-border: rgba(0, 0, 0, 0.08);
    --nav-pro-panel-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 10px 20px -5px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.04);
    --nav-pro-radius: 12px;
    --nav-pro-radius-inner: 8px;
    --nav-pro-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --nav-pro-duration: 180ms;
    --nav-pro-z-dropdown: 1000;
    --nav-pro-indicator-height: 32px;
    --nav-pro-indicator-radius: 8px;
    --nav-pro-mega-min-cols: 3;
    --nav-pro-mega-max-cols: 6;
}

/* -------------------------------------------------------------------------- */
/* Container & menu bar                                                       */
/* -------------------------------------------------------------------------- */

.nav-pro {
    position: relative;
    font-family: var(--nav-pro-font);
    font-size: 15px;
    font-weight: 500;
    -webkit-font-smoothing: antialiased;
}

.nav-pro__container {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-pro__menu {
    display: flex;
    align-items: center;
    gap: 2px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-pro__item {
    position: relative;
    margin: 0;
}

.nav-pro__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    color: var(--nav-pro-text);
    text-decoration: none;
    border-radius: var(--nav-pro-radius-inner);
    outline: none;
    transition: color var(--nav-pro-duration) var(--nav-pro-ease);
    will-change: transform;
}

.nav-pro__link:hover,
.nav-pro__link:focus-visible {
    color: var(--nav-pro-text);
}

.nav-pro__link:focus-visible {
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.15);
}

/* Floating gradient hover background + pointer tracking (GPU) */
.nav-pro__indicator {
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: var(--nav-pro-indicator-height);
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.06) 0%, rgba(15, 23, 42, 0.04) 50%, rgba(15, 23, 42, 0.06) 100%);
    border-radius: var(--nav-pro-indicator-radius);
    pointer-events: none;
    opacity: 0;
    transform: translateZ(0);
    transition: opacity var(--nav-pro-duration) var(--nav-pro-ease);
    will-change: transform, opacity;
}

.nav-pro__indicator.is-visible {
    opacity: 1;
}

/* -------------------------------------------------------------------------- */
/* Dropdown (shared) — solid SaaS panel                                       */
/* -------------------------------------------------------------------------- */

.nav-pro__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    z-index: var(--nav-pro-z-dropdown);
    margin-top: 6px;
    transform: translateX(-50%) translateY(-4px) scale(0.98);
    transform-origin: top center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--nav-pro-duration) var(--nav-pro-ease),
    visibility var(--nav-pro-duration) var(--nav-pro-ease),
    transform var(--nav-pro-duration) var(--nav-pro-ease);
    will-change: transform, opacity;
}

.nav-pro__dropdown.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0) scale(1);
}

.nav-pro__dropdown.is-open-left {
    left: 0;
    transform: translateX(0) translateY(-4px) scale(0.98);
}

.nav-pro__dropdown.is-open-left.is-open {
    transform: translateX(0) translateY(0) scale(1);
}

.nav-pro__dropdown.is-open-right {
    left: auto;
    right: 0;
    transform: translateX(0) translateY(-4px) scale(0.98);
}

.nav-pro__dropdown.is-open-right.is-open {
    transform: translateX(0) translateY(0) scale(1);
}

.nav-pro__panel {
    min-width: 200px;
    padding: 20px;
    background: var(--nav-pro-panel-bg);
    border: 1px solid var(--nav-pro-panel-border);
    border-radius: var(--nav-pro-radius);
    box-shadow: var(--nav-pro-panel-shadow);
}

.nav-pro__panel--single {
    padding: 10px 8px;
    min-width: 250px;
}

/* -------------------------------------------------------------------------- */
/* Mega menu — 3–6 columns, balanced by JS                                   */
/* -------------------------------------------------------------------------- */

.nav-pro__mega .nav-pro__panel {
    min-width: 320px;
    max-width: calc(100vw - 32px);
    padding: 24px 28px;
    box-sizing: border-box;
}

.nav-pro__columns {
    display: grid;
    grid-auto-rows: minmax(0, auto);
    row-gap: 24px;
    column-gap: 32px;
    min-width: 0;
    /* Kolon sayısı JS tarafından set ediliyor (2–5 kolon) */
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.nav-pro__column {
    min-width: 0;
    padding-left: 0;
}

.nav-pro__column--bordered {
    border-right: 1px solid rgba(148, 163, 184, 0.28);
    padding-right: 24px;
}

.nav-pro__column:first-child {
    padding-left: 0;
}

.nav-pro__group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-pro__group-title {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0 4px 4px 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--nav-pro-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.2;
}

.nav-pro__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    color: var(--nav-pro-text-muted);
    transition: transform var(--nav-pro-duration) var(--nav-pro-ease),
    color var(--nav-pro-duration) var(--nav-pro-ease);
}

.nav-pro__group:hover .nav-pro__icon,
.nav-pro__list-item:hover .nav-pro__icon {
    transform: scale(1.08);
    color: var(--nav-pro-text);
}

.nav-pro__list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-pro__list-item {
    margin: 0;
}

.nav-pro__sublink {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    margin: 0 -4px;
    color: var(--nav-pro-text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    outline: none;
    transition: background var(--nav-pro-duration) var(--nav-pro-ease),
    color var(--nav-pro-duration) var(--nav-pro-ease);
}

.nav-pro__sublink:hover,
.nav-pro__sublink:focus-visible {
    background: rgba(15, 23, 42, 0.04);
    color: var(--nav-pro-text);
}

.nav-pro__sublink:focus-visible {
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.1);
}

/* Single dropdown list */
.nav-pro__list--single .nav-pro__sublink {
    padding: 10px 14px;
    margin: 0 -2px;
}

/* -------------------------------------------------------------------------- */
/* Submenu (nested, open to right or left)                                    */
/* -------------------------------------------------------------------------- */

.nav-pro__item--nested {
    position: relative;
}

.nav-pro__dropdown--nested {
    top: 0;
    left: 100%;
    margin-top: 0;
    margin-left: 6px;
    transform: translateY(-4px) scale(0.98);
}

.nav-pro__dropdown--nested.is-open {
    transform: translateY(0) scale(1);
}

.nav-pro__dropdown--nested.is-open-left {
    left: auto;
    right: 100%;
    margin-left: 0;
    margin-right: 6px;
}

/* -------------------------------------------------------------------------- */
/* Reduced motion                                                             */
/* -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    .nav-pro__dropdown,
    .nav-pro__link,
    .nav-pro__indicator,
    .nav-pro__sublink,
    .nav-pro__icon {
        transition-duration: 0.01ms !important;
    }
}

/* -------------------------------------------------------------------------- */
/* Demo: site header (not part of nav-pro component)                          */
/* -------------------------------------------------------------------------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1001;
    padding: 12px 24px;
    background: var(--nav-pro-bg);
    border-bottom: 1px solid var(--nav-pro-panel-border);
    font-family: var(--nav-pro-font);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    gap: 32px;
}

.site-header__logo {
    font-weight: 600;
    font-size: 18px;
    color: var(--nav-pro-text);
    text-decoration: none;
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.site-header__btn {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.15s ease, color 0.15s ease;
}

.site-header__btn--ghost {
    color: var(--nav-pro-text);
    background: transparent;
}

.site-header__btn--ghost:hover {
    background: rgba(0, 0, 0, 0.06);
}

.site-header__btn--primary {
    color: #fff;
    background: #1a1a1a;
}

.site-header__btn--primary:hover {
    background: #333;
}

.demo-main {
    max-width: 600px;
    margin: 80px auto;
    padding: 0 24px;
    font-family: var(--nav-pro-font);
    color: var(--nav-pro-text-muted);
    font-size: 15px;
    line-height: 1.6;
}

.demo-text strong {
    color: var(--nav-pro-text);
}


@media only screen and (max-width: 1550px) {
    .nav-pro__link{
        font-size: 12px;
        padding: 10px 8px;
    }
}
@media only screen and (max-width: 1350px) {
    .nav-pro__link{
        font-size: 11px;
        padding: 10px 6px;
    }
}
@media only screen and (max-width: 1200px) {
    .nav-pro__link{
        font-size: 10px;
        padding: 10px 5px;
    }
}
@media only screen and (max-width: 1200px) {
    .nav-pro__link{
        font-size: 9px;
        padding: 10px 4px;
    }
}