/* ==========================================================================
   Layout — Structural elements, grid system, header, footer, containers
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: var(--leading-normal);
    font-size: var(--text-base);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Containers ── */
.container {
    width: 100%;
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.container--content {
    max-width: var(--container-content);
}

/* ── Header / Navigation ── */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) var(--space-xl);
    background: rgba(22, 19, 16, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: var(--border-subtle);
    transition: background var(--transition-base), padding var(--transition-base);
}

.site-header.scrolled {
    padding: var(--space-sm) var(--space-xl);
    background: rgba(22, 19, 16, 0.95);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-wide);
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-bright);
    text-decoration: none;
    letter-spacing: 0.5px;
}

.nav-logo {
    border-radius: 50%;
    display: block;
}

.nav-brand__text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.nav-brand__name {
    white-space: nowrap;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: var(--text-sm);
    font-weight: 600;
}

.nav-brand__tagline {
    white-space: nowrap;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-weight: 400;
    font-family: var(--font-body);
    letter-spacing: 0.5px;
    text-transform: lowercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
}

.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color var(--transition-base);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-brand);
    transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-text-bright);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-icon {
    display: inline-flex;
    align-items: center;
}

.nav-icon svg {
    display: block;
    position: relative;
    top: 2px;
}

/* Mobile menu toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

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

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

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

/* ── Language Selector ── */
.lang-selector {
    position: relative;
    margin-left: auto;
    margin-right: var(--space-md);
}

.lang-selector__btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background: rgba(10, 110, 138, 0.1);
    border: 1px solid rgba(10, 110, 138, 0.2);
    border-radius: var(--radius-sm);
    padding: var(--space-xs) var(--space-sm);
    color: var(--color-primary-light);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-selector__btn:hover {
    background: rgba(10, 110, 138, 0.2);
    border-color: var(--color-primary);
}

.lang-selector__arrow {
    display: flex;
    transition: transform var(--transition-base);
}

.lang-selector.open .lang-selector__arrow {
    transform: rotate(180deg);
}

.lang-selector__dropdown {
    display: none;
    position: absolute;
    top: calc(100% + var(--space-xs));
    right: 0;
    background: rgba(22, 19, 16, 0.98);
    border: var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: var(--space-xs) 0;
    min-width: 160px;
    z-index: 200;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
}

.lang-selector.open .lang-selector__dropdown {
    display: block;
}

.lang-selector__option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.lang-selector__option:hover {
    background: rgba(10, 110, 138, 0.1);
    color: var(--color-text-bright);
}

.lang-selector__option.active {
    color: var(--color-primary-light);
}

.lang-selector__code {
    font-weight: 700;
    min-width: 24px;
}

/* ── Main Content ── */
main {
    padding-top: 0;
}

/* ── Sections ── */
.section {
    padding: var(--space-4xl) 0;
    position: relative;
}

.section--alt {
    background: var(--color-bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

/* ── Grid System ── */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

/* ── Footer ── */
.site-footer {
    background: var(--color-bg-alt);
    border-top: var(--border-subtle);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-inner {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--space-xl);
    text-align: center;
}

.footer-brand-links {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.footer-brand-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-base);
}

.footer-brand-links a:hover {
    color: var(--color-primary);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    margin-bottom: var(--space-lg);
}

.footer-powered {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: var(--text-xs);
}

.footer-powered a {
    color: var(--color-primary);
    text-decoration: none;
}

/* ── Responsive ── */
@media (max-width: 1023px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        columns: 3;
    }
}

@media (max-width: 767px) {
    .site-header {
        padding: var(--space-sm) var(--space-md);
    }

    .container {
        padding: 0 var(--space-md);
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(22, 19, 16, 0.98);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-xl);
        border-bottom: var(--border-subtle);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-brand__tagline {
        display: none;
    }

    .lang-selector {
        margin-right: var(--space-sm);
    }

    .section {
        padding: var(--space-3xl) 0;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .footer-brand-links {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }
}
