/* ==========================================================================
   EMAD — Modern Minimalist Design System & Stylesheet
   Designed for: Emad Sharafi (Software Engineer)
   Aesthetic: Recreated directly from Visual Reference Specification
   Key Attributes: Layered dark surfaces, fine technical grid, ambient nebulas,
                   fine stardust particles, emerald accents, and Apple-grade typography.
   ========================================================================== */

/* --------------------------------------------------------------------------
   01. DESIGN TOKENS & CSS VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Layered Dark Visual System Palette (Exact match to reference) */
  --bg-deep: #070708;
  --bg-color: #0B0B0C;
  --bg-section-alt: #0D0D0E;
  --bg-section-elevated: #0F0F10;
  --bg-footer: #080809;

  --surface: #131314;
  --surface-hover: #171718;
  --surface-active: #1B1B1C;
  --surface-elevated: #171718;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.05);
  --border-hover: rgba(255, 255, 255, 0.16);
  --border-focus: rgba(255, 255, 255, 0.28);

  /* Emerald Accent (from reference CTA and indicators) */
  --emerald-accent: #10B981;
  --emerald-border: rgba(16, 185, 129, 0.45);
  --emerald-bg: rgba(16, 185, 129, 0.08);
  --emerald-glow: rgba(16, 185, 129, 0.22);

  --text-primary: #F5F5F5;
  --text-secondary: #A1A1A1;
  --text-muted: #6F6F70;
  --text-inverted: #0B0B0C;

  --status-available: #22C55E;
  --status-available-glow: rgba(34, 197, 94, 0.3);
  --status-error: #EF4444;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Helvetica Neue", sans-serif;
  --font-persian: "Vazirmatn", -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;

  --line-height-tight: 1.1;
  --line-height-heading: 1.2;
  --line-height-body: 1.65;

  /* Transitions & Curves (Apple-style fluid spring/cubic-bezier) */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout Spacing */
  --container-max-w: 1180px;
  --container-padding: clamp(1.25rem, 4vw, 2.5rem);
  --section-spacing-y: clamp(5.5rem, 11vw, 9.5rem);
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 16px;
  --border-radius-full: 9999px;

  /* Header Height */
  --header-height: 72px;
}

/* --------------------------------------------------------------------------
   02. RESET & BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-deep);
  color: var(--text-primary);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: var(--line-height-body);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Persian / RTL Mode */
html[dir="rtl"] body {
  font-family: var(--font-persian);
  letter-spacing: 0 !important;
}

html[dir="rtl"] .hero-headline,
html[dir="rtl"] .section-title,
html[dir="rtl"] .hero-role,
html[dir="rtl"] .hero-brand-name,
html[dir="rtl"] .brand-name {
  letter-spacing: 0 !important;
}

/* Selection */
::selection {
  background: rgba(16, 185, 129, 0.25);
  color: #FFFFFF;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

input, textarea {
  font-family: inherit;
}

ul {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--text-primary);
  color: var(--text-inverted);
  padding: 10px 18px;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  z-index: 9999;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 20px;
}


/* --------------------------------------------------------------------------
   04. CONTAINER & COMMON UTILITIES
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-w);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section {
  position: relative;
  padding-block: var(--section-spacing-y);
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-color);
  transition: background-color var(--transition-normal);
}

.section:last-of-type {
  border-bottom: none;
}

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  max-width: 720px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
  letter-spacing: -0.01em;
}

html[dir="rtl"] .section-label {
  font-family: var(--font-persian);
  letter-spacing: 0;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: var(--line-height-heading);
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.section-subtext {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.6rem;
  font-size: 0.9375rem;
  font-weight: 450;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

/* Reference Image Emerald Border Button */
.btn-accent-emerald {
  background-color: rgba(14, 20, 16, 0.85);
  color: var(--text-primary);
  border: 1px solid var(--emerald-border);
  box-shadow: 0 0 15px var(--emerald-glow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.btn-accent-emerald:hover {
  background-color: rgba(16, 185, 129, 0.12);
  border-color: var(--emerald-accent);
  box-shadow: 0 0 25px rgba(16, 185, 129, 0.35);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-accent-emerald:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
  background-color: var(--surface-hover);
  border-color: var(--border-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.btn-arrow {
  display: inline-block;
  transition: transform var(--transition-fast);
  color: var(--emerald-accent);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

html[dir="rtl"] .btn:hover .btn-arrow {
  transform: translateX(-4px);
}

/* --------------------------------------------------------------------------
   05. SITE HEADER & NAVIGATION (Matching Reference Bar)
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(7, 7, 8, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.brand-link:hover {
  opacity: 0.85;
}

.brand-link:active {
  transform: scale(0.97);
}

.header-logo {
  height: 26px;
  width: auto;
  max-height: 26px;
  aspect-ratio: 362 / 224;
  display: block;
  object-fit: contain;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
  margin: 0;
  transition: opacity var(--transition-fast);
}

@media (max-width: 480px) {
  .header-logo {
    height: 24px;
    max-height: 24px;
  }
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

/* Desktop Nav Links (Work, About, Expertise, Process, Philosophy, Contact) */
.desktop-nav {
  display: none;
}

@media (min-width: 820px) {
  .desktop-nav {
    display: block;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: -0.01em;
  position: relative;
  padding-block: 0.25rem;
  transition: color var(--transition-fast);
}

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

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

/* Language Switcher with Globe Icon */
.lang-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 450;
  border-radius: var(--border-radius-full);
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.lang-globe-icon {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.lang-toggle-btn:hover {
  background-color: rgba(255, 255, 255, 0.07);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.lang-toggle-btn:hover .lang-globe-icon {
  color: var(--text-primary);
}

.lang-label {
  transition: color var(--transition-fast);
}

.lang-label.active {
  color: var(--text-primary);
  font-weight: 600;
}

.lang-sep {
  opacity: 0.35;
  font-size: 0.75rem;
}

/* Mobile Toggle Hamburger */
.mobile-toggle-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--border-radius-sm);
  background-color: var(--surface);
  border: 1px solid var(--border-color);
  gap: 5px;
  padding: 8px;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

@media (min-width: 820px) {
  .mobile-toggle-btn {
    display: none;
  }
}

.burger-bar {
  width: 18px;
  height: 1.5px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.25s var(--ease-out-expo), opacity 0.25s ease;
}

.mobile-toggle-btn.is-active .bar-1 {
  transform: translateY(3.25px) rotate(45deg);
}

.mobile-toggle-btn.is-active .bar-2 {
  transform: translateY(-3.25px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   06. MOBILE DRAWER MENU
   -------------------------------------------------------------------------- */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100dvh - var(--header-height));
  background-color: rgba(7, 7, 8, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.3s var(--ease-out-expo),
              visibility 0.3s var(--ease-out-expo),
              transform 0.3s var(--ease-out-expo);
  border-bottom: 1px solid var(--border-color);
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu-inner {
  height: 100%;
  padding: 2.5rem var(--container-padding) 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-nav-link {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-block;
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
  color: var(--text-primary);
  transform: translateX(6px);
}

html[dir="rtl"] .mobile-nav-link:hover,
html[dir="rtl"] .mobile-nav-link:active {
  transform: translateX(-6px);
}

.mobile-menu-footer {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.mobile-status {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.mobile-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.mobile-social-link {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   07. HERO SECTION (Recreating Reference Composition & Atmosphere)
   -------------------------------------------------------------------------- */
.hero-section {
  min-height: 94vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + clamp(2.5rem, 5vw, 4.5rem));
  padding-bottom: clamp(4rem, 8vw, 6.5rem);
  position: relative;
  overflow: hidden;
  background-color: var(--bg-deep); /* #070708 */
}

/* Technical Grid (Point 3 from reference notes: "Grid خیلی ظریف") */
.tech-grid-bg {
  position: absolute;
  inset: 0;
  background-size: 52px 52px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.032) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.032) 1px, transparent 1px);
  mask-image: radial-gradient(ellipse 80% 70% at 65% 35%, black 25%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 65% 35%, black 25%, transparent 80%);
  pointer-events: none;
  z-index: 1;
}

/* Ambient Environmental Nebulas (Point 3: "نورهای محیطی نرم") */
.hero-ambient-glow-1 {
  position: absolute;
  top: 22%;
  right: 18%;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.09) 0%, rgba(6, 78, 59, 0.03) 45%, transparent 75%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
  animation: float-glow-1 28s ease-in-out infinite alternate;
  will-change: transform;
}

.hero-ambient-glow-2 {
  position: absolute;
  top: 45%;
  right: 28%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.06) 0%, rgba(14, 116, 144, 0.02) 50%, transparent 75%);
  filter: blur(95px);
  pointer-events: none;
  z-index: 1;
  animation: float-glow-2 34s ease-in-out infinite alternate;
  will-change: transform;
}

@keyframes float-glow-1 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-30px, 20px, 0) scale(1.05); }
  100% { transform: translate3d(20px, -25px, 0) scale(0.97); }
}

@keyframes float-glow-2 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(25px, -30px, 0) scale(1.04); }
  100% { transform: translate3d(-20px, 20px, 0) scale(0.96); }
}

/* Stardust / Fine Particles Canvas (Point 3: "ذرات بسیار ریز متحرک") */
.ambient-particles-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  opacity: 0.75;
}

.hero-container {
  position: relative;
  z-index: 3;
}

.hero-content {
  max-width: 880px;
}

/* Hero Elements Initial State */
.hero-elem {
  opacity: 0;
  transform: translateY(20px);
}

body.no-js .hero-elem {
  opacity: 1;
  transform: none;
}

/* 1. Giant Bold EMAD Heading (Matching Reference) */
.hero-brand-wrap {
  margin-bottom: 0.25rem;
}

.hero-brand-name {
  font-size: clamp(3.25rem, 8.5vw, 6.25rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1;
  display: block;
}

/* 2. Subhead: Software Engineer */
.hero-role-wrap {
  margin-bottom: 1.25rem;
}

.hero-role {
  display: inline-block;
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: -0.02em;
}

/* 3. Headline: I build software. */
.hero-headline {
  font-size: clamp(1.85rem, 3.8vw, 2.85rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

html[dir="rtl"] .hero-headline {
  line-height: 1.25;
}

.hero-positioning {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.55;
  max-width: 660px;
  margin-bottom: 1.75rem;
  font-weight: 400;
}

/* 4. Tech / Domain Line with Bullets */
.hero-domains {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem 0.85rem;
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  color: var(--text-secondary);
  margin-bottom: 2.75rem;
  letter-spacing: -0.01em;
}

.domain-pill {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.domain-pill:hover {
  color: var(--text-primary);
}

.domain-dot {
  color: var(--text-muted);
  user-select: none;
  font-size: 0.75rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem 2.25rem;
}

/* Availability Badge */
.availability-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.status-pulse,
.status-indicator {
  position: relative;
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--status-available);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--status-available-glow);
}

.status-pulse::after {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--status-available);
  opacity: 0.6;
  animation: pulse-ring 2.5s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.6); opacity: 0.8; }
  60%, 100% { transform: scale(1.8); opacity: 0; }
}

.status-text {
  font-weight: 400;
  line-height: 1.4;
}

/* Hero Bottom Scroll Indicator (From Reference) */
.hero-scroll-indicator {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  color: var(--text-muted);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.scroll-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.hero-scroll-indicator:hover .scroll-circle {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--text-primary);
  transform: translateY(2px);
}

/* --------------------------------------------------------------------------
   08. ABOUT SECTION (Matching Reference Card Tone & Ambience)
   -------------------------------------------------------------------------- */
.about-section {
  background-color: var(--bg-section-alt); /* #0D0D0E */
  position: relative;
  overflow: hidden;
}

.about-ambient-glow {
  position: absolute;
  top: 50%;
  right: 5%;
  transform: translateY(-50%);
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  position: relative;
  z-index: 2;
}

@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }
}

.about-lead .lead-text {
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  font-weight: 450;
  color: var(--text-primary);
  line-height: 1.5;
  letter-spacing: -0.015em;
  margin-bottom: 1.5rem;
}

.about-lead .body-text {
  font-size: 1.025rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.about-read-more-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 450;
  color: var(--emerald-accent);
  transition: all var(--transition-fast);
}

.about-read-more-link .link-arrow {
  transition: transform var(--transition-fast);
}

.about-read-more-link:hover .link-arrow {
  transform: translateX(4px);
}

html[dir="rtl"] .about-read-more-link:hover .link-arrow {
  transform: translateX(-4px);
}

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pillar-card {
  background-color: var(--surface); /* #131314 */
  border: 1px solid var(--border-color); /* rgba(255, 255, 255, 0.08) */
  border-radius: var(--border-radius-md);
  padding: 1.5rem 1.75rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition-normal),
              border-color var(--transition-fast),
              background-color var(--transition-fast),
              box-shadow var(--transition-normal);
}

.pillar-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  background-color: var(--surface-hover); /* #171718 */
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.pillar-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.pillar-title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
}

.pillar-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   09. EXPERTISE SECTION (4-Column Grid with Minimalist Vector Icons)
   -------------------------------------------------------------------------- */
.expertise-section {
  background-color: var(--bg-section-elevated); /* #0F0F10 */
  position: relative;
  overflow: hidden;
}

.expertise-ambient-glow {
  position: absolute;
  top: 10%;
  right: 15%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.035) 0%, transparent 70%);
  filter: blur(90px);
  pointer-events: none;
  z-index: 1;
}

.expertise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  position: relative;
  z-index: 2;
}

@media (min-width: 600px) {
  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1020px) {
  .expertise-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.expertise-card {
  background-color: var(--surface); /* #131314 */
  border: 1px solid var(--border-color); /* rgba(255, 255, 255, 0.08) */
  border-radius: var(--border-radius-md);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition-normal),
              border-color var(--transition-fast),
              background-color var(--transition-fast),
              box-shadow var(--transition-normal);
  position: relative;
}

.expertise-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  background-color: var(--surface-hover); /* #171718 */
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.4);
}

.capability-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius-sm);
  background-color: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.expertise-card:hover .capability-icon-wrap {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.capability-title {
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
}

.capability-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.capability-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
  background-color: rgba(255, 255, 255, 0.03);
  padding: 0.2rem 0.55rem;
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

html[dir="rtl"] .tech-tag {
  font-family: var(--font-persian);
}

.expertise-card:hover .tech-tag {
  color: var(--text-secondary);
  border-color: var(--border-color);
}

/* --------------------------------------------------------------------------
   10. PROCESS SECTION (Connected Vertical Timeline Matching Reference)
   -------------------------------------------------------------------------- */
.work-process-section {
  background-color: var(--bg-section-alt); /* #0D0D0E */
  position: relative;
  overflow: hidden;
}

.process-ambient-glow {
  position: absolute;
  top: 50%;
  left: 10%;
  transform: translateY(-50%);
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
  filter: blur(85px);
  pointer-events: none;
  z-index: 1;
}

.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  position: relative;
  max-width: 820px;
  z-index: 2;
}

.process-track-line {
  position: absolute;
  top: 40px;
  bottom: 40px;
  left: 28px;
  width: 1px;
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.4) 0%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 255, 255, 0.03) 100%);
  z-index: 1;
}

html[dir="rtl"] .process-track-line {
  left: auto;
  right: 28px;
}

.process-timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 1.75rem;
  background-color: var(--surface); /* #131314 */
  border: 1px solid var(--border-color); /* rgba(255, 255, 255, 0.08) */
  border-radius: var(--border-radius-md);
  padding: 2rem 2.25rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition-normal),
              border-color var(--transition-fast),
              background-color var(--transition-fast);
  position: relative;
  z-index: 2;
}

.process-timeline-item:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  background-color: var(--surface-hover); /* #171718 */
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.timeline-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  min-width: 36px;
}

.node-number {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.node-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--emerald-accent);
  box-shadow: 0 0 8px var(--emerald-glow);
}

.timeline-content {
  flex-grow: 1;
}

.timeline-title {
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.timeline-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   11. PHILOSOPHY SECTION (With Crescent Eclipse Arc Light Matching Reference)
   -------------------------------------------------------------------------- */
.philosophy-section {
  padding-block: clamp(6.5rem, 15vw, 12rem);
  text-align: left;
  background-color: var(--bg-deep); /* #070708 */
  position: relative;
  overflow: hidden;
}

html[dir="rtl"] .philosophy-section {
  text-align: right;
}

/* The Crescent Arc Light visible in reference */
.philosophy-arc-glow {
  position: absolute;
  top: 50%;
  right: 18%;
  transform: translateY(-50%);
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border-right: 2px solid rgba(255, 255, 255, 0.22);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 20px 0 70px rgba(255, 255, 255, 0.08), inset -10px 0 50px rgba(255, 255, 255, 0.03);
  filter: blur(1px);
  pointer-events: none;
  z-index: 1;
  animation: arc-float 22s ease-in-out infinite alternate;
}

html[dir="rtl"] .philosophy-arc-glow {
  right: auto;
  left: 18%;
  border-right: none;
  border-left: 2px solid rgba(255, 255, 255, 0.22);
  box-shadow: -20px 0 70px rgba(255, 255, 255, 0.08), inset 10px 0 50px rgba(255, 255, 255, 0.03);
}

@keyframes arc-float {
  0% { transform: translateY(-50%) scale(0.98); opacity: 0.8; }
  100% { transform: translateY(-50%) scale(1.04); opacity: 1; }
}

.philosophy-container {
  display: flex;
  justify-content: flex-start;
  position: relative;
  z-index: 2;
}

.philosophy-inner {
  max-width: 700px;
}

.philosophy-statement {
  font-size: clamp(2.75rem, 7vw, 5rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--text-primary);
  margin-block: 1.25rem 1.75rem;
}

html[dir="rtl"] .philosophy-statement {
  letter-spacing: 0;
  line-height: 1.35;
}

.phil-line {
  display: block;
}

.phil-line-2 {
  opacity: 0.85;
}

.phil-line-3 {
  opacity: 0.65;
}

.philosophy-sub {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 580px;
}

/* --------------------------------------------------------------------------
   12. AVAILABILITY SECTION (Matching Reference Card)
   -------------------------------------------------------------------------- */
.availability-section {
  background-color: var(--bg-section-alt); /* #0D0D0E */
  position: relative;
  overflow: hidden;
}

.availability-ambient-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.04) 0%, transparent 70%);
  filter: blur(85px);
  pointer-events: none;
  z-index: 1;
}

.availability-card {
  background-color: var(--surface); /* #131314 */
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.025) 0%, rgba(255, 255, 255, 0) 100%);
  border: 1px solid var(--border-color); /* rgba(255, 255, 255, 0.08) */
  border-radius: var(--border-radius-lg);
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 3.5rem);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.35);
  z-index: 2;
}

.availability-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.3), transparent);
}

.availability-body {
  max-width: 650px;
  margin-inline: auto;
}

.avail-title {
  font-size: clamp(1.85rem, 3.8vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--text-primary);
  margin-block: 0.85rem 1.35rem;
}

.avail-status-line {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 2.25rem;
}

.avail-badge-text {
  font-weight: 400;
}

.avail-action {
  display: flex;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   13. CONTACT SECTION (Matching Reference Direct Channels + Form)
   -------------------------------------------------------------------------- */
.contact-section {
  background-color: var(--bg-deep); /* #070708 */
  position: relative;
  overflow: hidden;
}

.contact-ambient-glow {
  position: absolute;
  bottom: 10%;
  right: 10%;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
  filter: blur(90px);
  pointer-events: none;
  z-index: 1;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
  position: relative;
  z-index: 2;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr 1.25fr;
  }
}

.channels-title {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.channel-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  background-color: var(--surface); /* #131314 */
  border: 1px solid var(--border-color); /* rgba(255, 255, 255, 0.08) */
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
  transition: all var(--transition-fast);
}

.channel-card:hover {
  background-color: var(--surface-hover); /* #171718 */
  border-color: var(--border-hover);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.channel-icon-wrap {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.channel-card:hover .channel-icon-wrap {
  color: var(--text-primary);
}

.channel-details {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.channel-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.channel-value {
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 450;
}

.channel-action-arrow {
  color: var(--text-muted);
  font-size: 1rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.channel-card:hover .channel-action-arrow {
  color: var(--text-primary);
  transform: translate(2px, -2px);
}

html[dir="rtl"] .channel-card:hover .channel-action-arrow {
  transform: translate(-2px, -2px);
}

/* Contact Form Container (Elevated Surface) */
.contact-form-container {
  background-color: var(--surface); /* #131314 */
  border: 1px solid var(--border-color); /* rgba(255, 255, 255, 0.08) */
  border-radius: var(--border-radius-lg);
  padding: clamp(1.75rem, 4vw, 2.5rem);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  position: relative;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background-color: #0F0F10;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: 0.9375rem;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.25);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-input:focus,
.form-textarea:focus {
  border-color: rgba(255, 255, 255, 0.24);
  background-color: #141415;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  font-size: 0.75rem;
  color: var(--status-error);
  min-height: 1rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.form-group.has-error .form-input,
.form-group.has-error .form-textarea {
  border-color: var(--status-error);
}

.form-group.has-error .form-error {
  opacity: 1;
}

/* Form Feedback Notification */
.form-feedback {
  padding: 0.85rem 1rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  line-height: 1.5;
  display: none;
}

.form-feedback.is-info,
.form-feedback.is-success {
  display: block;
  background-color: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ADE80;
}

.form-feedback.is-error {
  display: block;
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #F87171;
}

/* Contact Action Buttons */
.form-actions-wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.submit-btn {
  align-self: flex-start;
  margin-top: 0;
}

.contact-tg-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.8rem 1.35rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-standard);
}

/* --------------------------------------------------------------------------
   14. FOOTER (Deepest Tone: #080809)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--bg-footer); /* #080809 */
  padding-block: clamp(4rem, 8vw, 6rem) 2.5rem;
  border-top: 1px solid var(--border-subtle);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 2fr 1fr 1.5fr;
  }
}

.footer-brand-link {
  display: inline-block;
  margin-bottom: 0.65rem;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.footer-brand-link:hover {
  opacity: 0.85;
}

.footer-logo {
  height: 26px;
  width: auto;
  max-height: 26px;
  aspect-ratio: 362 / 224;
  display: block;
  object-fit: contain;
  background: none !important;
  border: none !important;
  box-shadow: none !important;
}

.footer-brand .brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.35rem;
}

.footer-role {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 0.75rem;
}

.footer-summary {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.6;
}

.footer-group-title {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-nav a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.copyright {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.back-to-top-btn:hover {
  color: var(--text-primary);
}

.back-arrow {
  transition: transform var(--transition-fast);
}

.back-to-top-btn:hover .back-arrow {
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   15. REDUCED MOTION PREFERENCE
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero-elem {
    opacity: 1 !important;
    transform: none !important;
  }

  .status-pulse::after,
  .hero-ambient-glow-1,
  .hero-ambient-glow-2,
  .philosophy-arc-glow {
    animation: none !important;
  }

  .ambient-particles-canvas {
    display: none !important;
  }
}