/* ============================================================
   DevKarim — "Blueprint Atelier"
   LAYOUT: container, header, mobile menu, footer
   ============================================================ */

.container {
    width: 100%;
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 3.5rem);
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.1rem 0;
    transition: padding 0.4s var(--ease-out-expo), background 0.4s ease, border-color 0.4s ease;
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    padding: 0.65rem 0;
    background: rgba(244, 241, 234, 0.88);
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    border-bottom-color: var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 3.5rem);
    gap: 1rem;
}

/* Logo */
.logo {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--color-text);
    white-space: nowrap;
}

.logo-mark {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    border-radius: 9px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.logo-accent {
    color: var(--color-primary);
}

.logo-dot {
    font-size: 0.62em;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-weight: 500;
    align-self: flex-end;
    margin-bottom: 2px;
}

/* Over dark hero: light text (default for dark-hero pages) */
.header:not(.scrolled) .logo,
.header:not(.scrolled) .nav-link,
.header:not(.scrolled) .lang-select {
    color: var(--color-text-light);
}

.header:not(.scrolled) .logo-dot {
    color: rgba(244, 241, 234, 0.6);
}

.header:not(.scrolled) .menu-line {
    background: var(--color-text-light);
}

/* Over light hero (homepage): ink text from the start */
.header.on-light:not(.scrolled) .logo,
.header.on-light:not(.scrolled) .nav-link,
.header.on-light:not(.scrolled) .lang-select {
    color: var(--color-text);
}

.header.on-light:not(.scrolled) .nav-link {
    color: var(--color-text-secondary);
}

.header.on-light:not(.scrolled) .nav-link:hover {
    color: var(--color-text);
}

.header.on-light:not(.scrolled) .logo-dot {
    color: var(--color-text-muted);
}

.header.on-light:not(.scrolled) .menu-line {
    background: var(--color-text);
}

.header.on-light:not(.scrolled) .lang-select {
    border-color: var(--color-border);
}

/* Nav */
.nav {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 2.2vw, 2.4rem);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: color 0.25s;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    position: relative;
    padding: 0.35rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.35s var(--ease-out-expo);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

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

.header:not(.scrolled) .nav-link:hover {
    color: #fff;
}

.header.scrolled .nav-link {
    color: var(--color-text-secondary);
}

.header.scrolled .nav-link:hover {
    color: var(--color-text);
}

.nav-index {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--color-primary);
    font-weight: 500;
}

/* Header actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-switch {
    position: relative;
}

.lang-select {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    padding: 0.45rem 1.6rem 0.45rem 0.6rem;
    transition: border-color 0.25s, background 0.25s, color 0.25s;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5' viewBox='0 0 8 5'%3E%3Cpath d='M0 0l4 5 4-5z' fill='%23FF5C1A'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.55rem center;
}

[dir="rtl"] .lang-select {
    padding: 0.45rem 0.6rem 0.45rem 1.6rem;
    background-position: left 0.55rem center;
}

.header:not(.scrolled) .lang-select {
    border-color: rgba(244, 241, 234, 0.35);
}

.lang-select:hover,
.lang-select:focus {
    border-color: var(--color-primary);
    background-color: rgba(255, 92, 26, 0.07);
    outline: none;
}

.lang-select option {
    color: #14161B;
    background: #FFFDF8;
}

.header-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.4rem;
    background: var(--color-primary);
    color: #14161B;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 700;
    transition: transform 0.25s var(--ease-spring), box-shadow 0.25s, background 0.25s;
    box-shadow: 0 4px 16px -4px rgba(255, 92, 26, 0.5);
    white-space: nowrap;
}

.header-cta:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 24px -6px rgba(255, 92, 26, 0.6);
    background: var(--color-primary-soft);
}

.header-cta i {
    font-size: 0.75rem;
    transition: transform 0.25s;
}

.header-cta:hover i {
    transform: translateX(3px);
}

[dir="rtl"] .header-cta:hover i {
    transform: translateX(-3px) scaleX(-1);
}

[dir="rtl"] .header-cta i {
    transform: scaleX(-1);
}

/* Burger */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 10px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.menu-line {
    width: 26px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s;
    border-radius: 2px;
}

.menu-toggle.active .menu-line:first-child {
    transform: rotate(45deg) translate(3px, 3px);
}

.menu-toggle.active .menu-line:last-child {
    transform: rotate(-45deg) translate(3px, -3px);
}

.header.menu-open .logo {
    color: var(--color-text) !important;
}

.header.menu-open .logo-dot {
    color: var(--color-text-muted) !important;
}

.header.menu-open .menu-line {
    background: var(--color-text) !important;
}

.header.menu-open .lang-select {
    color: var(--color-text) !important;
    border-color: var(--color-border) !important;
}

@media (max-width: 1024px) {

    .nav,
    .header-cta {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }
}

@media (max-width: 480px) {
    .header-inner {
        padding: 0 1rem;
    }

    .logo {
        font-size: 0.95rem;
    }

    .logo-mark {
        width: 32px;
        height: 32px;
    }
}

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    background-image: var(--grid-light);
    background-size: 48px 48px;
    z-index: 99;
    padding: 110px 2rem 2rem;
    transform: translateX(-100%);
    transition: transform 0.55s var(--ease-out-expo);
    overflow-y: auto;
}

[dir="rtl"] .mobile-menu {
    transform: translateX(100%);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.mobile-nav-link {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 6.5vw, 2.6rem);
    font-weight: 700;
    color: var(--color-text);
    display: flex;
    align-items: baseline;
    gap: 1rem;
    opacity: 0;
    transform: translateX(-32px);
    transition: opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo), color 0.25s;
}

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

.mobile-menu.active .mobile-nav-link {
    opacity: 1;
    transform: translateX(0);
}

.mobile-menu.active .mobile-nav-link:nth-child(1) { transition-delay: 0.08s; }
.mobile-menu.active .mobile-nav-link:nth-child(2) { transition-delay: 0.14s; }
.mobile-menu.active .mobile-nav-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-nav-link:nth-child(4) { transition-delay: 0.26s; }
.mobile-menu.active .mobile-nav-link:nth-child(5) { transition-delay: 0.32s; }
.mobile-menu.active .mobile-nav-link:nth-child(6) { transition-delay: 0.38s; }

.mobile-nav-index {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-primary);
}

.mobile-menu-footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.mobile-menu-footer a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.mobile-menu-footer i {
    color: var(--color-primary);
    width: 18px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-bg-dark);
    background-image: var(--grid-dark);
    background-size: 56px 56px;
    color: var(--color-text-light);
    padding: 5.5rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr 1fr 1.3fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.footer-desc {
    color: rgba(244, 241, 234, 0.62);
    max-width: 320px;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 42px;
    height: 42px;
    background: rgba(244, 241, 234, 0.07);
    border: 1px solid var(--color-border-dark);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    font-size: 1rem;
}

.footer-social a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #14161B;
    transform: translateY(-3px);
}

.footer-title {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    margin-bottom: 1.5rem;
    color: var(--color-primary-soft);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-link {
    color: rgba(244, 241, 234, 0.65);
    transition: color 0.25s, padding 0.25s;
    font-size: 0.95rem;
}

.footer-link:hover {
    color: #fff;
    padding-inline-start: 4px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    color: rgba(244, 241, 234, 0.65);
    margin-bottom: 1rem;
    font-style: normal;
    font-size: 0.95rem;
}

.footer-contact-item i {
    color: var(--color-primary);
    width: 18px;
    text-align: center;
}

.footer-contact-item a {
    color: inherit;
    transition: color 0.25s;
}

.footer-contact-item a:hover {
    color: #fff;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border-dark);
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-copy {
    color: rgba(244, 241, 234, 0.45);
    font-size: 0.875rem;
    margin: 0;
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.footer-legal a {
    color: rgba(244, 241, 234, 0.45);
    font-size: 0.875rem;
    transition: color 0.25s;
}

.footer-legal a:hover {
    color: var(--color-primary-soft);
}

@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 540px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.25rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }

    .footer-legal {
        justify-content: center;
    }
}