/* ═══════════════════════════════════════════════════════
   LAYOUT — Header & Navigation
   ═══════════════════════════════════════════════════════ */

/* ── Header ── */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background-color: var(--color-white);
    border-bottom: var(--border-width) solid var(--color-border);
    transition: var(--transition-base);
}

.header--scrolled {
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ── Logo ── */
.header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 22px;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.header__logo-accent {
    color: var(--color-secondary);
}

/* ── Navigation ── */
.header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

/* ── Nav Link ── */
.header__nav-link {
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    padding: var(--space-sm) 0;
    position: relative;
    transition: var(--transition-fast);
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: var(--transition-fast);
}

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

.header__nav-link:hover::after {
    width: 100%;
}

.header__nav-link--active {
    color: var(--color-primary);
}

.header__nav-link--active::after {
    width: 100%;
}

/* ── Dropdown Menu ── */
.nav-dropdown {
    position: relative;
}

.nav-dropdown__menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    opacity: 0;
    visibility: hidden;
    width: 480px;
    padding: var(--space-lg);
    background-color: var(--color-white);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-fast);
    pointer-events: none;
}

.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown.is-active .nav-dropdown__menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.nav-dropdown__trigger {
    display: flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    padding: var(--space-sm) 0;
    cursor: pointer;
    font: inherit;
    color: inherit;
    -webkit-appearance: none;
    outline: none;
}

.nav-dropdown__trigger:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 4px;
    border-radius: 2px;
}

.nav-dropdown__arrow {
    width: 14px;
    height: 14px;
    stroke-width: 2.5;
    transition: transform 0.2s ease;
    flex-shrink: 0;
    margin-left: -2px;
}

.nav-dropdown:hover .nav-dropdown__arrow {
    transform: rotate(180deg);
}

.nav-dropdown__columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.nav-dropdown__column-title {
    font-size: 11px;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-md);
}

.nav-dropdown__item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

.nav-dropdown__item:hover {
    background-color: var(--color-surface);
}

.nav-dropdown__item-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    color: var(--color-secondary);
    flex-shrink: 0;
}

.nav-dropdown__item:hover .nav-dropdown__item-icon {
    background-color: var(--color-secondary);
    color: var(--color-text-inverse);
}

.nav-dropdown__item-content {
    display: flex;
    flex-direction: column;
}

.nav-dropdown__item-title {
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.nav-dropdown__item-desc {
    font-size: 12px;
    color: var(--color-text-tertiary);
    margin-top: 2px;
}

/* ── Header Actions ── */
.header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* ── Theme Toggle ── */
.theme-toggle {
    margin-left: var(--space-md);
}

/* ── Mobile Menu Toggle ── */
.header__menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.header__menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ═══════════════════════════════════════════════════════
   LAYOUT — Enterprise Footer
   ═══════════════════════════════════════════════════════ */

.footer {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-xl);
}

.footer__inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

/* ── Footer Form Column ── */
.footer__form-column {
    max-width: 360px;
}

.footer__form-title {
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    margin-bottom: var(--space-md);
}

.footer__form-description {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

/* ── Footer Form ─- */
.footer-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-form__group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-form__label {
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    color: rgba(255, 255, 255, 0.8);
}

.footer-form__input {
    padding: 12px 16px;
    font-family: var(--font-family);
    font-size: 14px;
    color: var(--color-text-inverse);
    background-color: rgba(255, 255, 255, 0.1);
    border: var(--border-width) solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

.footer-form__input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.footer-form__input:focus {
    outline: none;
    border-color: var(--color-accent);
    background-color: rgba(255, 255, 255, 0.15);
}

.footer-form__input:focus::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.footer-form__btn {
    padding: 14px 24px;
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    background-color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
}

.footer-form__btn:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
}

.footer-form__btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ── Footer Columns ── */
.footer__column-title {
    font-size: 13px;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-inverse);
    margin-bottom: var(--space-lg);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__link {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-text-inverse);
}

/* ── Footer Bottom ── */
.footer__bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer__copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer__legal {
    display: flex;
    gap: var(--space-lg);
}

.footer__legal-link {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer__legal-link:hover {
    color: var(--color-text-inverse);
}

/* ── Footer LinkedIn Link ── */
.footer__linkedin {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

.footer__linkedin:hover {
    color: var(--color-primary);
}

.footer__linkedin svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
    .header__nav {
        gap: var(--space-lg);
    }

    .footer__inner {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }

    .footer__form-column {
        grid-column: span 2;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .header__nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 0;
        padding: var(--space-lg);
        background-color: var(--color-white);
        border-top: var(--border-width) solid var(--color-border);
        transform: translateX(100%);
        transition: var(--transition-base);
        overflow-y: auto;
    }

    .header__nav.active {
        transform: translateX(0);
    }

    .header__nav-link {
        width: 100%;
        padding: var(--space-md) 0;
        border-bottom: var(--border-width) solid var(--color-border);
    }

    .header__nav-link::after {
        display: none;
    }

    .header__actions {
        display: none;
    }

    .header__menu-toggle {
        display: flex;
    }

    .theme-toggle {
        margin-left: 0;
        margin-right: var(--space-sm);
    }

    .footer__inner {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .footer__form-column {
        grid-column: span 1;
    }

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer__legal {
        flex-wrap: wrap;
        justify-content: center;
    }
}