@import 'archive.css';
@import 'arrows.css';
/* ============================================

   BLOCK ARCHITECTURE STUDIO — Core Styles
   Theme: White & Minimal
   ============================================ */

/* --- Yekan Bakh Font Definitions --- */
@font-face {
  font-family: 'YekanBakh';
  src: url('../assets/fonts/Yekan Bakh Fa 01 Hairline.woff2') format('woff2');
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'YekanBakh';
  src: url('../assets/fonts/Yekan Bakh Fa 02 Thin.woff2') format('woff2');
  font-weight: 200;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'YekanBakh';
  src: url('../assets/fonts/Yekan Bakh Fa 03 Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'YekanBakh';
  src: url('../assets/fonts/Yekan Bakh Fa 04 Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'YekanBakh';
  src: url('../assets/fonts/Yekan Bakh Fa 05 Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'YekanBakh';
  src: url('../assets/fonts/Yekan Bakh Fa 06 Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'YekanBakh';
  src: url('../assets/fonts/Yekan Bakh Fa 07 Heavy.woff2') format('woff2');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'YekanBakh';
  src: url('../assets/fonts/Yekan Bakh Fa 08 Fat.woff2') format('woff2');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

/* --- CSS Custom Properties --- */
:root {
  /* Color Palette */
  --color-white: #ffffff;
  --color-off-white: #fafafa;
  --color-light-gray: #f0f0f0;
  --color-mid-gray: #999999;
  --color-dark-gray: #333333;
  --color-black: #0a0a0a;
  --color-accent: #1a1a1a;

  /* Text Semantic Colors */
  --text-color-primary: var(--color-black);
  --text-color-secondary: #262626;
  --text-color-muted: #525252;
  --text-color-inverse: var(--color-white);
  --text-color-inverse-muted: rgba(255, 255, 255, 0.88);
  --text-color-counter-dim: rgba(255, 255, 255, 0.8);

  /* Font Families */
  --font-primary: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-persian: 'YekanBakh', 'Yekan Bakh', 'Yekan Fard', 'yekanfard', Tahoma, sans-serif;
  --font-display: "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Font Weights */
  --font-weight-hairline: 100;
  --font-weight-thin: 200;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --font-weight-heavy: 800;
  --font-weight-fat: 900;

  /* Font Sizes (Scale) */
  --font-size-xs: 0.85rem;          /* Labels, footer titles, meta */
  --font-size-sm: 0.92rem;          /* Nav links, hero btn, section links */
  --font-size-sub: 0.98rem;         /* Subtitles, brand name, footer links/desc */
  --font-size-base: 1.12rem;        /* Main body text, footer brand */
  --font-size-md: 1.2rem;           /* Project card titles */
  --font-size-counter: 1.35rem;     /* Active slide counter */
  --font-size-overlay: clamp(1.25rem, 1.8vw, 1.6rem); /* Project card overlay */
  --font-size-section: clamp(2rem, 3.5vw, 3.2rem);   /* Section headings */
  --font-size-hero: clamp(2.8rem, 6.5vw, 5.5rem);     /* Hero main title */
  --font-size-display: clamp(2.8rem, 6.5vw, 6rem);    /* Display headings */

  /* Line Heights */
  --line-height-none: 1;
  --line-height-display: 1.05;
  --line-height-hero: 1.08;
  --line-height-tight: 1.2;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.7;
  --line-height-loose: 1.8;

  /* Letter Spacings */
  --letter-spacing-tight-display: -0.02em;
  --letter-spacing-tight-hero: -0.01em;
  --letter-spacing-normal: 0.02em;
  --letter-spacing-wide: 0.05em;
  --letter-spacing-counter: 0.1em;
  --letter-spacing-nav: 0.15em;
  --letter-spacing-label: 0.2em;
  --letter-spacing-overlay: 0.25em;

  /* Spacings */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-2xl: 8rem;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Text Animations & Transitions */
  --anim-fade-in-up-hero-title: fadeInUp 0.8s ease forwards 0.3s;
  --anim-fade-in-up-hero-sub: fadeInUp 0.8s ease forwards 0.6s;
  --anim-fade-in-up-hero-btn: fadeInUp 0.8s ease forwards 0.9s;
  --text-transition-color: color var(--transition-fast);
  --text-transition-smooth: color var(--transition-smooth);
  --reveal-transition: opacity 0.8s ease, transform 0.8s ease;

  --nav-height: 80px;
  --max-width: 1400px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: subpixel-antialiased;
  -moz-osx-font-smoothing: auto;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-regular);
  color: var(--text-color-primary);
  background-color: var(--color-white);
  line-height: var(--line-height-normal);
  overflow-x: hidden;
  -webkit-font-smoothing: subpixel-antialiased;
  -moz-osx-font-smoothing: auto;
  text-rendering: optimizeLegibility;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-tight);
}

.heading-display {
  font-family: var(--font-display);
  font-size: var(--font-size-display);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-tight-display);
  line-height: var(--line-height-display);
  color: var(--text-color-inverse);
}

.heading-section {
  font-family: var(--font-primary);
  font-size: var(--font-size-section);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-nav);
  text-transform: uppercase;
  color: var(--text-color-primary);
}

.text-body {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-normal);
  color: var(--text-color-secondary);
  text-align: justify;
}

.text-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-label);
  text-transform: uppercase;
  color: var(--text-color-muted);
}

/* --- Animated Link Underline --- */
.link-hover {
  position: relative;
  display: inline-block;
  overflow: hidden;
}

.link-hover::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-smooth);
}

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

/* ============================================
      # NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
  z-index: 1000;
  background-color: transparent;
  transition: background-color var(--transition-smooth),
              box-shadow var(--transition-smooth);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.97);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.navbar.scrolled .nav-brand-name,
.navbar.scrolled .nav-link,
.navbar.scrolled .nav-social-link {
  color: var(--text-color-primary);
}

.navbar.menu-open {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  background-color: transparent !important;
}

.navbar.menu-open .nav-brand-name,
.navbar.menu-open .lang-switcher {
  color: var(--text-color-primary);
}

.navbar.menu-open .lang-switcher {
  border-color: rgba(0, 0, 0, 0.2);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-brand-logo {
  width: 36px;
  height: 36px;
}

.nav-brand-name {
  font-size: var(--font-size-sub);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-label);
  text-transform: uppercase;
  color: var(--text-color-inverse);
  transition: var(--text-transition-smooth);
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-nav);
  text-transform: uppercase;
  color: var(--text-color-inverse);
  transition: color var(--transition-fast), opacity var(--transition-fast), font-weight var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-smooth);
}

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

.nav-link:hover {
  opacity: 0.7;
}

.nav-social {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  width: 24px;
  color: var(--text-color-inverse);
  border: none;
  background: transparent;
  cursor: pointer;
  transition: color var(--transition-fast), opacity var(--transition-fast), transform var(--transition-fast);
}

.navbar.scrolled .nav-social-link {
  color: var(--text-color-primary);
}

.nav-social-link:hover {
  opacity: 0.7;
  transform: translateY(-2px);
}

/* Icon CSS Masks (Using Local Outline Assets) */
.icon-social {
  display: inline-block;
  width: 24px;
  height: 24px;
  background-color: currentColor;
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  transition: background-color var(--transition-fast);
}

.icon-instagram {
  -webkit-mask-image: url('../assets/icons/instagram.svg');
  mask-image: url('../assets/icons/instagram.svg');
}

.icon-linkedin {
  -webkit-mask-image: url('../assets/icons/linkedin.svg');
  mask-image: url('../assets/icons/linkedin.svg');
}

/* --- Language Switcher (Refined Outline Button Style) --- */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  direction: ltr !important;
  height: 24px;
  min-width: 38px;
  padding: 0 6px;
  font-family: var(--font-primary), sans-serif !important;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-color-inverse);
  background: transparent;
  border: 1.2px solid currentColor;
  border-radius: 4px;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast), transform var(--transition-fast);
}

.navbar.scrolled .lang-switcher {
  color: var(--text-color-primary);
  border-color: currentColor;
}

.lang-switcher:hover {
  opacity: 0.7;
  transform: translateY(-2px);
}

/* --- Mobile Menu Toggle --- */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
}

.nav-toggle span {
  width: 24px;
  height: 1.5px;
  background-color: var(--color-white);
  transition: all var(--transition-smooth);
}

.navbar.scrolled .nav-toggle span {
  background-color: var(--color-black);
}

.nav-toggle.open span {
  background-color: var(--color-black);
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
      # HERO / SLIDESHOW
   ============================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  transition: transform 8s ease-out;
}

.hero-slide.active img {
  transform: scale(1);
}

/* Dark overlay for readability */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.15) 0%,
    rgba(0, 0, 0, 0.35) 50%,
    rgba(0, 0, 0, 0.5) 100%
  );
  z-index: 2;
}

/* Hero content */
.hero-content {
  position: absolute;
  bottom: clamp(4rem, 10vh, 8rem);
  left: clamp(2rem, 5vw, 4rem);
  z-index: 3;
  max-width: 700px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--font-size-hero);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-tight-hero);
  line-height: var(--line-height-hero);
  color: var(--text-color-inverse);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(30px);
  animation: var(--anim-fade-in-up-hero-title);
}

.hero-subtitle {
  font-size: var(--font-size-sub);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-nav);
  text-transform: uppercase;
  color: var(--text-color-inverse-muted);
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(20px);
  animation: var(--anim-fade-in-up-hero-sub);
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-label);
  text-transform: uppercase;
  color: var(--text-color-inverse);
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  transition: all var(--transition-smooth);
  opacity: 0;
  transform: translateY(20px);
  animation: var(--anim-fade-in-up-hero-btn);
}

.hero-btn:hover {
  border-bottom-color: var(--color-white);
  gap: 1.25rem;
}

.hero-btn-arrow {
  display: inline-block;
  width: 20px;
  height: 1px;
  background-color: var(--color-white);
  position: relative;
  transition: width var(--transition-smooth);
}

.hero-btn:hover .hero-btn-arrow {
  width: 36px;
}

.hero-btn-arrow::after {
  content: '';
  position: absolute;
  right: 0;
  top: -3px;
  width: 8px;
  height: 8px;
  border-top: 1px solid var(--color-white);
  border-right: 1px solid var(--color-white);
  transform: rotate(45deg);
}

/* Slideshow Controls */
.hero-controls {
  position: absolute;
  bottom: clamp(2rem, 4vh, 4rem);
  right: clamp(2rem, 5vw, 4rem);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
  direction: ltr; /* Ensure counter and bars flow LTR */
}

.hero-indicators {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-indicator {
  width: 40px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.hero-indicator::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0;
  background-color: var(--color-white);
  transition: width 0.05s linear;
}

.hero-indicator.active::after {
  width: 100%;
  transition: width 6s linear;
}

/* Slide counter */
.hero-counter {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-counter);
  color: var(--text-color-counter-dim);
}

.hero-counter .current {
  font-size: var(--font-size-counter);
  font-weight: var(--font-weight-medium);
  color: var(--text-color-inverse);
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
      # PROJECTS SECTION
   ============================================ */
.section {
  padding: var(--spacing-xl) clamp(1.5rem, 5vw, 4rem);
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-light-gray);
}

.section-header .text-label {
  margin-bottom: 0.5rem;
}

.section-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-nav);
  text-transform: uppercase;
  color: var(--text-color-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--transition-fast), gap var(--transition-smooth);
}

.section-link:hover {
  color: var(--text-color-primary);
  gap: 0.75rem;
}

.section-link-arrow {
  display: inline-block;
  width: 16px;
  height: 1px;
  background-color: currentColor;
  position: relative;
}

.section-link-arrow::after {
  content: '';
  position: absolute;
  right: 0;
  top: -3px;
  width: 6px;
  height: 6px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.project-card {
  position: relative;
  opacity: 0;
  transform: translateY(40px);
  transition: var(--reveal-transition);
}

.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-card-image {
  display: block;
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  margin-bottom: 1.5rem;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card-image img {
  transform: scale(1.06);
}

.project-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.project-card:hover .project-card-overlay {
  background: rgba(0, 0, 0, 0.4);
}

.project-card-view {
  font-family: var(--font-primary);
  font-size: var(--font-size-overlay);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-overlay);
  text-transform: uppercase;
  color: var(--text-color-inverse);
  text-align: center;
  padding: 12px 0;
  background: none;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth),
              border-color var(--transition-fast);
  cursor: pointer;
}

.project-card:hover .project-card-view {
  opacity: 1;
  transform: translateY(0);
}

.project-card-view:hover {
  border-bottom-color: var(--color-white);
}

.project-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.project-card-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-wide);
  color: var(--text-color-primary);
}

.project-card-meta {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-counter);
  text-transform: uppercase;
  color: var(--text-color-muted);
}

/* ============================================
      # FOOTER
   ============================================ */
.footer {
  padding: var(--spacing-xl) clamp(1.5rem, 5vw, 4rem) var(--spacing-lg);
  border-top: 1px solid var(--color-light-gray);
  background-color: var(--color-off-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-brand-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  letter-spacing: var(--letter-spacing-nav);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer-brand-desc {
  font-size: var(--font-size-sub);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-loose);
  color: var(--text-color-muted);
  max-width: 320px;
  text-align: justify;
}

.footer-col-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-label);
  text-transform: uppercase;
  color: var(--text-color-muted);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: var(--font-size-sub);
  font-weight: var(--font-weight-regular);
  color: var(--text-color-secondary);
  transition: var(--text-transition-color);
}

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

.footer-contact-item {
  font-size: var(--font-size-sub);
  font-weight: var(--font-weight-regular);
  color: var(--text-color-secondary);
  margin-bottom: 0.5rem;
  line-height: var(--line-height-relaxed);
}

.footer-social {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.footer-social-link {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-light-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  border-color: var(--color-black);
  background-color: var(--color-black);
  color: var(--color-white);
}

.footer-social-link svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-light-gray);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-regular);
  color: var(--text-color-muted);
  letter-spacing: var(--letter-spacing-wide);
}

.footer-credit {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-regular);
  color: var(--text-color-muted);
  letter-spacing: var(--letter-spacing-wide);
}

/* ============================================
      # SCROLL REVEAL ANIMATION
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--reveal-transition);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
      # REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  .hero-slide img {
    transition: none;
    transform: scale(1);
  }
  .hero-title,
  .hero-subtitle,
  .hero-btn {
    animation: none;
    opacity: 1;
    transform: none;
  }
  .project-card {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================
      # RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-center,
  .nav-social {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  /* Mobile menu overlay */
  .nav-center.mobile-open,
  .nav-social.mobile-open {
    display: flex;
  }

  .nav-center.mobile-open {
    position: fixed;
    inset: 0;
    background-color: var(--color-white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 999;
  }

  .nav-center.mobile-open .nav-link {
    color: var(--color-black);
    font-size: 1.2rem;
    letter-spacing: 0.2em;
  }

  .nav-social.mobile-open {
    position: fixed;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
    gap: 2rem;
  }

  .nav-social.mobile-open .nav-social-link {
    color: var(--color-black);
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .hero-content {
    bottom: 6rem;
    left: 1.5rem;
    right: 1.5rem;
  }

  .hero-controls {
    right: 1.5rem;
    bottom: 2rem;
  }

  .hero-counter {
    display: none;
  }
}

@media (max-width: 480px) {
  .section {
    padding: var(--spacing-lg) 1.25rem;
  }

  .section-header {
    flex-direction: column;
    gap: 1rem;
  }
}

/* ============================================
      # PERSIAN LANGUAGE — Global Font Override
   ============================================ */
body.lang-fa,
body.lang-fa .hero-title,
body.lang-fa .hero-subtitle,
body.lang-fa .hero-btn,
body.lang-fa .heading-display,
body.lang-fa .heading-section,
body.lang-fa .nav-brand-name,
body.lang-fa .nav-link,
body.lang-fa .lang-switcher,
body.lang-fa .text-label,
body.lang-fa .text-body,
body.lang-fa .project-card-view,
body.lang-fa .project-card-title,
body.lang-fa .project-card-meta,
body.lang-fa .section-link,
body.lang-fa .footer-brand-name,
body.lang-fa .footer-brand-desc,
body.lang-fa .footer-col-title,
body.lang-fa .footer-link,
body.lang-fa .footer-contact-item,
body.lang-fa .footer-copyright,
body.lang-fa .footer-credit {
  font-family: var(--font-persian);
  letter-spacing: normal !important;
}

body.lang-fa .hero-title,
body.lang-fa .heading-display,
body.lang-fa .heading-section,
body.lang-fa .footer-brand-name {
  font-weight: 300;
}

body.lang-fa .hero-title {
  font-size: clamp(2.3rem, 5.5vw, 4.5rem);
}

body.lang-fa .lang-switcher {
  direction: ltr !important;
  font-family: var(--font-primary), sans-serif !important;
  letter-spacing: 0.05em !important;
}

body.lang-fa .nav-link,
body.lang-fa .hero-subtitle,
body.lang-fa .hero-btn,
body.lang-fa .hero-counter,
body.lang-fa .project-card-meta,
body.lang-fa .footer-link,
body.lang-fa .footer-col-title {
  font-size: 110%;
}

/* ============================================
      # RTL SUPPORT (Persian)
   ============================================ */
html[dir="rtl"] .hero-content {
  left: auto;
  right: clamp(2rem, 5vw, 4rem);
}

html[dir="rtl"] .hero-controls {
  right: auto;
  left: clamp(2rem, 5vw, 4rem);
}

html[dir="rtl"] .hero-btn-arrow::after {
  right: auto;
  left: 0;
  border-right: none;
  border-left: 1px solid var(--color-white);
  transform: rotate(-45deg);
}

html[dir="rtl"] .section-link-arrow::after {
  right: auto;
  left: 0;
  border-right: none;
  border-left: 1px solid currentColor;
  transform: rotate(-45deg);
}

html[dir="rtl"] .lang-dropdown {
  left: auto;
  right: 0;
}

@media (max-width: 768px) {
  html[dir="rtl"] .hero-controls {
    right: auto;
    left: 1.5rem;
  }
}



/* ============================================
      # BILINGUAL (RTL/FARSI) TYPOGRAPHY FORCES
   ============================================ */
html[lang="fa"] h1, 
html[lang="fa"] h2, 
html[lang="fa"] h3, 
html[lang="fa"] h4, 
html[lang="fa"] h5, 
html[lang="fa"] h6,
body.lang-fa h1,
body.lang-fa h2,
body.lang-fa h3,
body.lang-fa h4,
body.lang-fa h5,
body.lang-fa h6,
body.lang-fa .project-title,
body.lang-fa .hero-title,
body.lang-fa .heading-section,
body.lang-fa .slideshow-header,
body.lang-fa .next-title,
body.lang-fa .mega-list-title,
body.lang-fa .brief-title h2 {
  font-family: var(--font-persian) !important;
  line-height: 1.4 !important;
  /* Proper leading for Persian ascenders/descenders */
  font-weight: 300 !important;
}

/* Ensure proper font weight cascading for Farsi */
html[lang="fa"] .hero-title,
body.lang-fa .hero-title {
  font-weight: 300 !important; /* Yekan Light */
}

/* ============================================
      # ENGLISH (LTR) HELVETICA DISPLAY TYPOGRAPHY
   ============================================ */
body:not(.lang-fa) {
  --font-size-hero: clamp(2.5rem, 8vw, 7rem);
  --font-size-display: clamp(2.5rem, 8vw, 7.5rem);
  --font-size-section: clamp(2rem, 5vw, 4.5rem);
}

body:not(.lang-fa) h1,
body:not(.lang-fa) h2,
body:not(.lang-fa) h3,
body:not(.lang-fa) .hero-title,
body:not(.lang-fa) .project-title,
body:not(.lang-fa) .section-title,
body:not(.lang-fa) .heading-display,
body:not(.lang-fa) .heading-section,
body:not(.lang-fa) .mega-list-title,
body:not(.lang-fa) .archive-title,
body:not(.lang-fa) .specs-title,
body:not(.lang-fa) .next-title {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

/* Adjustments for massive hero / display text */
body:not(.lang-fa) .hero-title,
body:not(.lang-fa) .project-title,
body:not(.lang-fa) .heading-display {
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

/* ============================================
      # ENGLISH (LTR) BODY TYPOGRAPHY
   ============================================ */
body:not(.lang-fa) {
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.015em;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

body:not(.lang-fa) p,
body:not(.lang-fa) .text-body,
body:not(.lang-fa) .narrative-text,
body:not(.lang-fa) .phil-text,
body:not(.lang-fa) .team-bio,
body:not(.lang-fa) .project-description,
body:not(.lang-fa) .spec-label,
body:not(.lang-fa) .spec-value,
body:not(.lang-fa) .gallery-caption,
body:not(.lang-fa) .text-label,
body:not(.lang-fa) .footer-brand-desc,
body:not(.lang-fa) .project-card-meta {
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.015em;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

body:not(.lang-fa) .footer-brand-desc,
body:not(.lang-fa) .spec-label {
  font-weight: 400;
}

/* Keep global font weight variables crisp in English (LTR) on high-resolution screens */
body:not(.lang-fa) {
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-light: 400;
  --font-weight-thin: 400;
}




/* =========================================
      # Mega Menu / Projects Overlay
   ========================================= */

.projects-mega-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 10000; /* Above navbar */
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  overflow: hidden;
}

.projects-mega-menu.open {
  opacity: 1;
  visibility: visible;
}

.mega-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem clamp(1.5rem, 5vw, 4rem);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.mega-menu-title {
  font-family: var(--font-primary);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.mega-menu-close {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-primary);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-color-primary);
}
.mega-menu-close .close-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.mega-menu-filters {
  display: flex;
  gap: 1rem;
  padding: 1.5rem clamp(1.5rem, 5vw, 4rem);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

.mega-menu-filters .filter-pill {
  background: transparent;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 40px;
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.mega-menu-filters .filter-pill:hover,
.mega-menu-filters .filter-pill.active {
  background: var(--text-color-primary);
  color: var(--color-white);
  border-color: var(--text-color-primary);
}

.mega-menu-content {
  display: grid;
  grid-template-columns: 1fr;
  flex: 1;
  overflow: hidden;
}

@media (min-width: 900px) {
  .mega-menu-content {
    grid-template-columns: 1fr 2fr; /* List takes 1/3, Image takes 2/3 */
  }
}

.mega-menu-list {
  padding: 2rem clamp(1.5rem, 5vw, 4rem);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mega-list-item {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  text-decoration: none;
  color: var(--text-color-primary);
  transition: transform 0.3s ease;
}

.mega-list-item:hover, .mega-list-item.hovered {
  transform: translateX(10px);
}

.mega-list-num {
  font-size: 0.85rem;
  color: var(--text-color-secondary);
}

.mega-list-title {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
}

/* Explicit override for mega list titles */
body:not(.lang-fa) .mega-list-title {
  font-weight: 400 !important;
  letter-spacing: -0.01em !important;
}

.mega-list-year {
  font-size: 0.85rem;
  color: var(--text-color-secondary);
}

.mega-menu-preview {
  display: none;
  position: relative;
  background: var(--color-off-white);
  overflow: hidden;
}

@media (min-width: 900px) {
  .mega-menu-preview {
    display: block;
  }
}

.mega-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0; left: 0;
  opacity: 0;
  transition: opacity 0.5s ease, transform 1s ease;
  transform: scale(1.05);
}

.mega-preview-img.active {
  opacity: 1;
  transform: scale(1);
}

.mega-menu-preview-meta {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 1rem 1.5rem;
  font-size: 0.85rem;
  line-height: 1.6;
}

/* RTL Support */
body.lang-fa .mega-menu-title,
body.lang-fa .mega-menu-close,
body.lang-fa .filter-pill,
body.lang-fa .mega-list-num,
body.lang-fa .mega-list-year {
  font-family: var(--font-persian);
  letter-spacing: normal;
}
body.lang-fa .mega-list-item:hover, 
body.lang-fa .mega-list-item.hovered {
  transform: translateX(-10px);
}
body.lang-fa .mega-menu-preview-meta {
  left: auto;
  right: 2rem;
  font-family: var(--font-persian);
}


/* ============================================
   ABOUT SUMMARY SECTION
   ============================================ */
.about-summary-section {
  background-color: var(--bg-color);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.about-summary-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

@media (min-width: 900px) {
  .about-summary-split {
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
  }
}

.about-summary-text-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.about-summary-desc {
  font-size: clamp(1rem, 2vw, 1.25rem); /* smaller font size */
  font-weight: 400;
  margin-bottom: 2.5rem;
  line-height: 1.8;
  color: var(--text-color-secondary);
}

.about-summary-image-col {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.about-summary-image-col img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.about-summary-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about-summary-link.hero-btn {
  color: var(--text-color);
  border-bottom-color: rgba(0, 0, 0, 0.4);
}

.about-summary-link.hero-btn:hover {
  border-bottom-color: var(--text-color);
}

.about-summary-link .hero-btn-arrow {
  background-color: var(--text-color);
}

.about-summary-link .hero-btn-arrow::after {
  border-color: var(--text-color);
}

html[dir="rtl"] .about-summary-link .hero-btn-arrow::after {
  border-color: var(--text-color);
}


/* Fix for English justified text spacing */
html[lang="en"] .narrative-text,
html[lang="en"] .about-summary-text,
html[lang="en"] .about-summary-desc,
html[lang="en"] .about-content p,
html[lang="en"] .about-philosophy-text,
html[lang="en"] p,
html[lang="en"] .project-description {
  text-align: justify !important;
  text-justify: inter-word !important;
  hyphens: auto !important;
  -webkit-hyphens: auto !important;
}

html[lang="fa"] p,
html[lang="fa"] .narrative-text,
html[lang="fa"] .project-description {
  text-align: justify !important;
  text-justify: inter-character !important;
}