/* ============================================================
   NFA HEADER — header.css
   Matches Figma: white bg, NFA logo, nav links, dropdowns,
   orange FUNDER LOGIN button
   ============================================================ */

/* ---------- Variables ---------- */
:root {
    --nfa-navy: #1a1a2e;
    --nfa-blue: #1a3060;
    --nfa-blue-mid: #1a3a6e;
    --nfa-orange: #e84c1e;
    --nfa-orange-dk: #c93d14;
    --nfa-white: #ffffff;
    --nfa-gray-text: #555555;
    --nfa-header-h: 80px;
    --nfa-font: 'Open Sans', sans-serif;
    --nfa-transition: 0.2s ease;
}

/* ---------- Base Reset ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--nfa-font);
    background: #f0f0f0;
    color: var(--nfa-navy);
}

/* ---------- HEADER SHELL ---------- */
.nfa-header {
    background: var(--nfa-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

.nfa-header__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    height: var(--nfa-header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

/* ---------- LOGO ---------- */
.nfa-header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.nfa-header__logo-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
}

.nfa-header__logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.nfa-header__logo-nfa {
    font-size: 26px;
    font-weight: 700;
    color: var(--nfa-navy);
    letter-spacing: 2px;
    line-height: 1;
}

.nfa-header__logo-full {
    font-size: 7.5px;
    color: #666;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    margin-top: 2px;
}

/* ---------- NAV ---------- */
.nfa-header__nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nfa-header__nav-link {
    text-decoration: none;
    color: var(--nfa-navy);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    transition: color var(--nfa-transition);
    white-space: nowrap;
}

.nfa-header__nav-link:hover {
    color: var(--nfa-orange);
}

/* ---------- DROPDOWN ---------- */
.nfa-header__dropdown {
    position: relative;
}

.nfa-header__dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    font-family: var(--nfa-font);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    color: var(--nfa-navy);
    cursor: pointer;
    padding: 0;
    white-space: nowrap;
    transition: color var(--nfa-transition);
}

.nfa-header__dropdown-toggle:hover,
.nfa-header__dropdown-toggle[aria-expanded="true"] {
    color: var(--nfa-orange);
}

.nfa-header__chevron {
    font-size: 8px;
    line-height: 1;
    transition: transform var(--nfa-transition);
    display: inline-block;
}

.nfa-header__dropdown-toggle[aria-expanded="true"] .nfa-header__chevron {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.nfa-header__dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    background: var(--nfa-white);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
    border-radius: 6px;
    min-width: 220px;
    z-index: 200;
    padding: 8px 0;
    list-style: none;
    /* subtle top border accent */
    border-top: 3px solid var(--nfa-blue-mid);
    /* animation */
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity var(--nfa-transition), transform var(--nfa-transition);
    pointer-events: none;
}

/* Show on hover (desktop) */
/* .nfa-header__dropdown:hover .nfa-header__dropdown-menu,
.nfa-header__dropdown-menu.is-open {
    display: block;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
} */

/* Show on click only */
.nfa-header__dropdown-menu.is-open {
    display: block;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.nfa-header__dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 400;
    color: #333;
    text-decoration: none;
    transition: background var(--nfa-transition), color var(--nfa-transition);
    white-space: nowrap;
}

.nfa-header__dropdown-menu li a:hover {
    background: #f5f5f5;
    color: var(--nfa-orange);
    padding-left: 24px;
}

/* ---------- BUTTON ---------- */
.nfa-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border-radius: 4px;
    font-family: var(--nfa-font);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background var(--nfa-transition), color var(--nfa-transition);
    white-space: nowrap;
}

.nfa-btn--orange {
    background: var(--nfa-orange);
    color: var(--nfa-white) !important;
}

.nfa-btn--orange:hover {
    background: var(--nfa-orange-dk);
    color: var(--nfa-white) !important;
}

.nfa-btn--outline {
    background: transparent;
    color: var(--nfa-blue-mid);
    border: 1px solid var(--nfa-blue-mid);
}

.nfa-btn--outline:hover {
    background: var(--nfa-blue-mid);
    color: var(--nfa-white);
}

/* ---------- HAMBURGER (mobile) ---------- */
.nfa-header__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nfa-header__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--nfa-navy);
    border-radius: 2px;
    transition: transform var(--nfa-transition), opacity var(--nfa-transition);
}

/* Hamburger active state */
.nfa-header__hamburger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nfa-header__hamburger.is-active span:nth-child(2) {
    opacity: 0;
}

.nfa-header__hamburger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- MOBILE RESPONSIVE ---------- */
@media (max-width: 991px) {
    .nfa-header__hamburger {
        display: flex;
    }

    .nfa-header__nav {
        display: none;
        position: absolute;
        top: var(--nfa-header-h);
        left: 0;
        right: 0;
        background: var(--nfa-white);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px 24px;
        gap: 0;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }

    .nfa-header__nav.is-open {
        display: flex;
    }

    .nfa-header__nav-link {
        padding: 12px 0;
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }

    .nfa-header__dropdown {
        width: 100%;
    }

    .nfa-header__dropdown-toggle {
        padding: 12px 0;
        width: 100%;
        justify-content: space-between;
        border-bottom: 1px solid #f0f0f0;
    }

    .nfa-header__dropdown-menu {
        position: static;
        box-shadow: none;
        border-top: none;
        border-left: 3px solid var(--nfa-blue-mid);
        border-radius: 0;
        margin: 0 0 8px 12px;
        padding: 4px 0;
        min-width: unset;
        width: calc(100% - 12px);
    }

    .nfa-header__dropdown-menu.is-open {
        display: block;
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }

    /* On mobile hide on hover, use JS click only */
    .nfa-header__dropdown:hover .nfa-header__dropdown-menu {
        display: none;
    }

    .nfa-btn--orange {
        margin-top: 16px;
        width: 100%;
        text-align: center;
    }
}