/* ============================================================
   ThinkPartners — Header, Footer & Navigation
   ============================================================ */

/* ── Header ───────────────────────────────────────────────── */
.tp-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(3, 23, 18, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(94, 225, 90, 0.06);
}

.tp-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 1.5rem;
}

/* Logo */
.tp-header__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    flex-shrink: 0;
}

.tp-header__logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--tp-gradient-cta);
    color: var(--tp-cta-text);
    font-weight: 800;
    font-size: 14px;
}

.tp-header__logo-text {
    color: var(--tp-text);
    font-size: 1rem;
    font-weight: 400;
}

.tp-header__logo-text strong {
    font-weight: 700;
}

/* Desktop nav container */
.tp-desktop-nav {
    display: none;
    align-items: center;
    gap: 0.25rem;
}

/* Desktop-only elements */
.tp-desktop-only { display: none; }

/* Mobile hamburger */
.tp-mobile-btn {
    display: block;
    background: none;
    border: none;
    color: var(--tp-text);
    padding: 0.5rem;
    cursor: pointer;
    margin-left: auto;
}

.tp-nav__group {
    position: relative;
}

.tp-nav__trigger {
    background: none;
    border: none;
    color: #d0e8df;
    font-family: var(--tp-font);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 9999px;
    transition: background 0.2s ease, color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.tp-nav__trigger:hover {
    color: #5EE15A;
    background: rgba(255, 255, 255, 0.05);
}

/* Dropdown — pt-3 creates a hover bridge so the menu stays open
   when moving from trigger to dropdown (matches Vercel group-hover pattern) */
.tp-nav__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding-top: 0.75rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.tp-nav__dropdown-panel,
.tp-nav__dropdown > .tp-nav__columns {
    min-width: 200px;
    padding: 1.5rem;
    background: rgba(10, 31, 26, 0.95);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(78, 222, 163, 0.12);
    border-radius: 1rem;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.tp-nav__group:hover > .tp-nav__dropdown,
.tp-nav__group:focus-within > .tp-nav__dropdown {
    opacity: 1;
    visibility: visible;
}

.tp-nav__columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    width: 640px;
}

.tp-nav__col-title {
    display: block;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #5EE15A;
    margin-bottom: 0.75rem;
}

.tp-nav__link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    margin: 0.0625rem 0;
    color: #d0e8df;
    text-decoration: none;
    font-size: 0.875rem;
    border-radius: 0.5rem;
    transition: background 0.15s ease, color 0.15s ease;
}

.tp-nav__link:hover {
    background: #031712;
    color: #5EE15A;
}

.tp-nav__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: rgba(94, 225, 90, 0.1);
    color: #5EE15A;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* Rich link style (icon + title + subtitle) */
.tp-nav__link--rich {
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
}

.tp-nav__link--rich .tp-nav__icon {
    width: 28px;
    height: 28px;
    font-size: 0.8rem;
}

.tp-nav__link-title {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #d0e8df;
}

.tp-nav__link--rich:hover .tp-nav__link-title {
    color: #5EE15A;
}

.tp-nav__link-sub {
    display: block;
    font-size: 0.75rem;
    color: #bbcac0;
}

.tp-nav__dropdown-panel--wide {
    width: 280px;
}

.tp-nav__highlight {
    display: inline-block;
    margin-top: 0.75rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: #5EE15A;
    background: rgba(94, 225, 90, 0.1);
    border-radius: 9999px;
    border: 1px solid rgba(94, 225, 90, 0.2);
}

/* Header actions */
.tp-header__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.tp-btn--sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
}

/* Language selector */
.tp-lang-selector {
    position: relative;
}

.tp-lang-selector__trigger {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    background: none;
    border: 1px solid var(--tp-glow-border);
    color: var(--tp-text);
    font-family: var(--tp-font);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 0.75rem;
    border-radius: var(--tp-radius-sm);
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.tp-lang-selector__trigger:hover {
    border-color: var(--tp-green);
}

.tp-lang-selector__menu {
    display: none;
    position: absolute;
    top: calc(100% + 0.375rem);
    right: 0;
    min-width: 140px;
    padding: 0.5rem;
    background: var(--tp-bg-card);
    border: 1px solid var(--tp-glow-border);
    border-radius: var(--tp-radius-sm);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    list-style: none;
    margin: 0;
    z-index: 100;
}

.tp-lang-selector:hover .tp-lang-selector__menu,
.tp-lang-selector:focus-within .tp-lang-selector__menu {
    display: block;
}

.tp-lang-selector__menu a {
    display: block;
    padding: 0.4rem 0.75rem;
    color: var(--tp-text);
    text-decoration: none;
    font-size: 0.85rem;
    border-radius: 4px;
    transition: background 0.15s ease;
}

.tp-lang-selector__menu a:hover {
    background: rgba(94, 225, 90, 0.08);
    color: var(--tp-green);
}

/* Hamburger */
.tp-header__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.tp-header__hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--tp-text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.tp-header__hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.tp-header__hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.tp-header__hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Footer ───────────────────────────────────────────────── */
.tp-footer {
    background: #00110d;
    border-top: 1px solid rgba(78, 222, 163, 0.1);
    padding: 4rem 0 2rem;
}

.tp-footer__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.tp-footer__heading {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #5EE15A;
    margin: 0 0 1rem;
}

.tp-footer__links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tp-footer__links li {
    margin-bottom: 0.625rem;
}

.tp-footer__links a {
    color: #bbcac0;
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.15s ease;
}

.tp-footer__links a:hover {
    color: #d0e8df;
}

.tp-footer__bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(78, 222, 163, 0.06);
}

.tp-footer__risk-warning {
    font-size: 0.75rem;
    color: rgba(187, 202, 192, 0.6);
    line-height: 1.6;
    max-width: 56rem;
    margin: 0 0 1.5rem;
}

.tp-footer__risk-label {
    color: rgba(255, 185, 95, 0.8);
}

.tp-footer__legal-row {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.tp-footer__legal-text {
    font-size: 0.75rem;
    color: rgba(187, 202, 192, 0.4);
    margin: 0;
}

.tp-footer__copyright {
    font-size: 0.75rem;
    color: rgba(187, 202, 192, 0.4);
    margin: 0;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (min-width: 768px) {
    .tp-footer__grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
    }

    .tp-footer__legal-row {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

@media (min-width: 1024px) {
    .tp-desktop-nav {
        display: flex;
    }

    .tp-desktop-only {
        display: inline-flex;
    }

    .tp-mobile-btn {
        display: none;
    }

    .tp-mobile-menu {
        display: none !important;
    }

    .tp-header__actions .tp-lang-selector {
        display: block;
    }

    .tp-footer__grid {
        gap: 3rem;
    }
}

/* ── Mobile Menu ──────────────────────────────────────────── */
.tp-hidden { display: none; }

.tp-mobile-menu {
    background: #0a1f1a;
    border-top: 1px solid rgba(78, 222, 163, 0.1);
    max-height: 80vh;
    overflow-y: auto;
    padding: 1rem;
}

.tp-mobile-menu__section-title {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--tp-green);
    font-weight: 600;
    padding: 0.75rem 0.75rem 0.25rem;
}

.tp-mobile-menu__link {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--tp-text);
    text-decoration: none;
    font-size: 0.875rem;
    border-radius: 8px;
}

.tp-mobile-menu__link:hover {
    color: var(--tp-green);
    background: rgba(255, 255, 255, 0.05);
}

.tp-mobile-menu__divider {
    border-top: 1px solid rgba(78, 222, 163, 0.06);
    margin: 0.5rem 0;
}

.tp-mobile-menu__cta {
    display: block;
    margin: 0.5rem 0.75rem;
    background: var(--tp-gradient-cta);
    color: var(--tp-cta-text);
    padding: 0.625rem 1.25rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
}

@media (max-width: 1023px) {
    .tp-header__actions .tp-lang-selector { display: none; }
}

/* ── RTL ──────────────────────────────────────────────────── */
[dir="rtl"] .tp-header__inner {
    flex-direction: row-reverse;
}

[dir="rtl"] .tp-nav__link {
    flex-direction: row-reverse;
}

[dir="rtl"] .tp-lang-selector__menu {
    right: auto;
    left: 0;
}

[dir="rtl"] .tp-footer__links {
    text-align: right;
}