/* ==========================================================================
   ENGTEC — Layout: Header, Navigation, Hero, Diagonal Sections, Footer
   ========================================================================== */

/* ── Header ───────────────────────────────────────────────────────────────── */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: var(--z-nav);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition:
        background var(--duration-normal) var(--ease-out),
        border-color var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out);
}

.header--scrolled {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: var(--color-border-light);
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-xl);
    margin-inline: auto;
    padding-inline: var(--space-5);
}

/* ── Logo ─────────────────────────────────────────────────────────────────── */
.header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: var(--z-nav);
}

.header__logo img {
    height: 44px;
    width: auto;
    /* border-block-color: lightblue; */
    border-radius: 10px;
    background-color: #efefef;
    padding: 5px;
    padding-right: 15px;
    /*adiicionei manualmente esta linha*/
}

/* ── Navigation ───────────────────────────────────────────────────────────── */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav__link {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-text);
    position: relative;
    padding-block: var(--space-2);
    transition: color var(--duration-fast) var(--ease-out);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-secondary);
    transition: width var(--duration-normal) var(--ease-out);
}

.nav__link:hover,
.nav__link--active {
    color: var(--color-secondary);
}

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

/* ── Language Switcher ────────────────────────────────────────────────────── */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    border: 1px solid var(--color-border);
    padding: var(--space-1);
}

.lang-switcher__btn {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    padding: var(--space-1) var(--space-2);
    color: var(--color-text-muted);
    transition:
        color var(--duration-fast) var(--ease-out),
        background var(--duration-fast) var(--ease-out);
}

.lang-switcher__btn:hover {
    color: var(--color-primary-dark);
}

.lang-switcher__btn--active {
    background: var(--color-primary-dark);
    color: var(--color-text-inverse);
}

/* ── Mobile Menu Toggle ───────────────────────────────────────────────────── */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    z-index: var(--z-nav);
}

.nav-toggle__line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-primary-dark);
    transition:
        transform var(--duration-normal) var(--ease-out),
        opacity var(--duration-fast) var(--ease-out);
    transform-origin: center;
}

.nav-toggle--open .nav-toggle__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle--open .nav-toggle__line:nth-child(2) {
    opacity: 0;
}

.nav-toggle--open .nav-toggle__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Hero Section ─────────────────────────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-primary-dark);
    padding-top: var(--header-height);
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

/* Diagonal geometric accent inspired by logo diamond */
.hero__bg::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 70%;
    height: 140%;
    background: linear-gradient(135deg,
            rgba(14, 154, 167, 0.15) 0%,
            rgba(27, 94, 138, 0.08) 50%,
            transparent 100%);
    clip-path: polygon(30% 0%, 100% 0%, 100% 100%, 0% 100%);
}

/* Blueprint grid overlay */
.hero__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(108, 180, 217, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 180, 217, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: var(--container-xl);
    margin-inline: auto;
    padding-inline: var(--space-5);
    width: 100%;
}

.hero__label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: var(--space-5);
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    border: 1px solid rgba(14, 154, 167, 0.3);
}

.hero__title {
    font-size: clamp(var(--text-2xl), 6vw, var(--text-4xl));
    color: var(--color-text-inverse);
    max-width: 14ch;
    margin-bottom: var(--space-5);
}

.hero__title span {
    color: var(--color-secondary);
}

.hero__description {
    font-size: var(--text-md);
    color: var(--color-accent-light);
    max-width: 50ch;
    margin-bottom: var(--space-8);
    line-height: var(--leading-relaxed);
}

.hero__actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Diamond decorative element */
.hero__diamond {
    position: absolute;
    right: 8%;
    top: 50%;
    transform: translateY(-50%);
    width: 400px;
    height: 400px;
    opacity: 0.08;
    z-index: 0;
}

/* ── Diagonal Section Divider ─────────────────────────────────────────────── */
.diagonal-divider {
    position: relative;
    height: 80px;
    overflow: hidden;
}

.diagonal-divider::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    clip-path: polygon(0 0, 100% 60%, 100% 100%, 0 100%);
}

.diagonal-divider--reverse::before {
    clip-path: polygon(0 60%, 100% 0, 100% 100%, 0 100%);
}

.diagonal-divider--dark {
    background: var(--color-primary-dark);
}

.diagonal-divider--dark::before {
    background: var(--color-bg);
}

.diagonal-divider--to-dark {
    background: var(--color-bg);
}

.diagonal-divider--to-dark::before {
    background: var(--color-primary-dark);
}

/* ── Dark Section ─────────────────────────────────────────────────────────── */
.section--dark {
    background: var(--color-primary-dark);
    color: var(--color-text-inverse);
}

.section--dark .section__label {
    color: var(--color-secondary-light);
}

.section--dark .section__title {
    color: var(--color-text-inverse);
}

.section--dark .section__subtitle {
    color: var(--color-accent-light);
}

/* ── Grid Layouts ─────────────────────────────────────────────────────────── */
.grid {
    display: grid;
    gap: var(--space-6);
}

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

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

.grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Asymmetric 65/35 layout */
.grid--asymmetric {
    grid-template-columns: 1.8fr 1fr;
    gap: var(--space-10);
    align-items: center;
}

.grid--asymmetric-reverse {
    grid-template-columns: 1fr 1.8fr;
    gap: var(--space-10);
    align-items: center;
}

/* ── Footer ───────────────────────────────────────────────────────────────── */
.footer {
    background: var(--color-primary-dark);
    color: var(--color-text-inverse);
    padding-block: var(--space-10) var(--space-6);
}

.footer__inner {
    max-width: var(--container-xl);
    margin-inline: auto;
    padding-inline: var(--space-5);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid rgba(108, 180, 217, 0.15);
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer__brand img {
    height: 40%;
    width: 40%;
    margin-bottom: var(--space-4);
    /* Logo in footer should probably be white if background is dark */
    /* filter: brightness(0) invert(1); */
}

.footer__brand-text {
    font-size: var(--text-sm);
    color: var(--color-accent-light);
    line-height: var(--leading-normal);
    max-width: 30ch;
}

.footer__heading {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: var(--space-4);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer__link {
    font-size: var(--text-sm);
    color: var(--color-accent-light);
    transition: color var(--duration-fast) var(--ease-out);
}

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

.footer__contact-item {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
    margin-bottom: var(--space-3);
}

.footer__contact-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-secondary);
    margin-top: 2px;
}

.footer__contact-item span {
    font-size: var(--text-sm);
    color: var(--color-accent-light);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-6);
    font-size: var(--text-xs);
    color: var(--color-text-light);
}

/* ── Page Offset (for fixed header) ───────────────────────────────────────── */
.page-content {
    padding-top: var(--header-height);
}