/* ==========================================================================
   Govix Design System — Components
   Header, footer, buttons, cards, and reusable UI patterns
   ========================================================================== */

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(0, 77, 90, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    height: var(--header-height);
    transition: background-color var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.site-header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    transition: opacity var(--transition-base);
    flex-shrink: 0;
}

.site-header__logo:hover {
    opacity: 0.7;
}

.site-header__logo img {
    width: 36px;
    height: auto;
}

.site-header__logo-text {
    font-size: var(--text-xl);
    font-weight: var(--font-weight-extra-bold);
    color: var(--color-white);
    letter-spacing: 0.05em;
}

/* Desktop Navigation */
.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.site-nav__link {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    text-decoration: none;
    padding: var(--space-xs) 0;
    position: relative;
    transition: opacity var(--transition-fast);
    letter-spacing: 0.02em;
}

.site-nav__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-white);
    transition: width var(--transition-base);
}

.site-nav__link:hover::after,
.site-nav__link--active::after {
    width: 100%;
}

.site-nav__link--active::after {
    background-color: var(--color-accent);
}

.site-nav__link:hover {
    color: var(--color-text-secondary);
}

.site-nav__cta {
    margin-left: var(--space-sm);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: 1001;
}

.menu-toggle__bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    margin: 5px 0;
    transition: transform var(--transition-base), opacity var(--transition-fast);
}

.menu-toggle.active .menu-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active .menu-toggle__bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .menu-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--space-4xl) 0 var(--space-xl);
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(4, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

.site-footer__brand p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-top: var(--space-md);
    max-width: 280px;
    line-height: 1.6;
}

.site-footer__brand {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--space-lg);
}

.site-footer__brand-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.site-footer__brand-logo img {
    width: 30px;
    height: auto;
}

.site-footer__brand-logo span {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-extra-bold);
    letter-spacing: 0.05em;
}

.site-footer__heading {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-lg);
}

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

.site-footer__links a {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.site-footer__links a:hover {
    color: var(--color-white);
}

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

.site-footer__copyright {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

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

.site-footer__legal a {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.site-footer__legal a:hover {
    color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.75rem;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

.btn--primary:hover {
    background-color: transparent;
    color: var(--color-white);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn--outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.btn--outline-dark {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn--outline-dark:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn--accent {
    background-color: var(--color-accent);
    color: var(--color-black);
    border-color: var(--color-accent);
    font-weight: var(--font-weight-bold);
}

.btn--accent:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: var(--color-black);
}

.btn--lg {
    padding: 1rem 2.25rem;
    font-size: var(--text-base);
}

.btn--sm {
    padding: 0.5rem 1.25rem;
    font-size: var(--text-xs);
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.btn-group {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--space-2xl);
    transition: all var(--transition-base);
}

.card:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.card--light {
    background-color: var(--color-white);
    border-color: var(--color-light-grey);
    color: var(--color-text-dark);
}

.card--light:hover {
    background-color: var(--color-white);
    border-color: var(--color-accent);
    box-shadow: 0 4px 24px rgba(0, 77, 90, 0.08);
}

.card__icon {
    width: 40px;
    height: 40px;
    margin-bottom: var(--space-lg);
    color: var(--color-accent);
}

.card__icon img {
    width: 100%;
    height: 100%;
}

.card--light .card__icon {
    color: var(--color-primary);
}

.card__title {
    font-size: var(--text-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-sm);
}

.card__text {
    font-size: var(--text-sm);
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.card--light .card__text {
    color: var(--color-text-dark-secondary);
}

.card-grid {
    display: grid;
    gap: var(--space-xl);
}

.card-grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

.card-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
}

.hero__content {
    max-width: 700px;
}

.hero__eyebrow {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.hero__eyebrow::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 2px;
    background-color: var(--color-accent);
    flex-shrink: 0;
}

.hero__eyebrow.text-center {
    justify-content: center;
}

.hero__title {
    margin-bottom: var(--space-xl);
}

.hero__description {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 560px;
}

/* --------------------------------------------------------------------------
   Page Header (for inner pages)
   -------------------------------------------------------------------------- */
.page-header {
    padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-3xl);
}

.page-header__eyebrow {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.page-header__eyebrow::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 2px;
    background-color: var(--color-accent);
    flex-shrink: 0;
}

.page-header__title {
    margin-bottom: var(--space-lg);
}

.page-header__description {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    max-width: 640px;
}

/* --------------------------------------------------------------------------
   Feature Row (alternating left/right content)
   -------------------------------------------------------------------------- */
.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.feature-row--reverse .feature-row__content {
    order: 2;
}

.feature-row__eyebrow {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.feature-row__eyebrow::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 2px;
    background-color: var(--color-accent);
    flex-shrink: 0;
}

.feature-row__title {
    margin-bottom: var(--space-lg);
}

.feature-row__text {
    margin-bottom: var(--space-xl);
}

.feature-row__visual {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.feature-row__visual img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.section--light .feature-row__visual {
    background-color: var(--color-primary);
    border-color: rgba(0, 77, 90, 0.15);
}

/* --------------------------------------------------------------------------
   CTA Band
   -------------------------------------------------------------------------- */
.cta-band {
    background-color: var(--color-surface-dark);
    padding: var(--space-4xl) 0;
    text-align: center;
    border-top: 3px solid var(--color-accent);
}

.cta-band__title {
    margin-bottom: var(--space-md);
}

.cta-band__text {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin: 0 auto var(--space-2xl);
    max-width: 500px;
}

/* --------------------------------------------------------------------------
   Responsive — Components
   -------------------------------------------------------------------------- */
@media screen and (max-width: 1024px) {
    .site-footer__grid {
        grid-template-columns: 1fr 1fr;
    }

    .card-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-row {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .feature-row--reverse .feature-row__content {
        order: 0;
    }
}

@media screen and (max-width: 768px) {
    /* Mobile navigation */
    .menu-toggle {
        display: block;
    }

    .site-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--color-primary-dark);
        flex-direction: column;
        align-items: flex-start;
        padding: calc(var(--header-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
        gap: var(--space-md);
        transition: right var(--transition-base);
    }

    .site-nav.is-open {
        right: 0;
    }

    .site-nav__cta {
        margin-left: 0;
        margin-top: var(--space-lg);
    }

    /* Footer */
    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

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

    /* Cards */
    .card-grid--2,
    .card-grid--3 {
        grid-template-columns: 1fr;
    }
}