/* ===== CSS Variables ===== */
:root,
html[data-theme="dark"] {
  --bg-primary: #0b0f19;
  --bg-secondary: #0f1524;
  --surface: #111827;
  --surface-hover: #1a2236;
  --text-primary: #f5f7fa;
  --text-secondary: #94a3b8;
  --accent-primary: #3b82f6;
  --accent-secondary: #06b6d4;
  --accent-glow: rgba(59, 130, 246, 0.35);
  --border-color: #1f2937;
  --shadow-color: rgba(0, 0, 0, 0.45);
  --container-width: 1200px;
  --section-spacing: clamp(2.5rem, 5vw, 4rem);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --header-height: 72px;
  --transition: 0.25s ease;
  --hero-banner: url("../Pic/Banner/Banner-DarkMode.png");
  --hero-scrim: linear-gradient(
    105deg,
    rgba(11, 15, 25, 0.88) 0%,
    rgba(11, 15, 25, 0.72) 42%,
    rgba(11, 15, 25, 0.35) 68%,
    rgba(11, 15, 25, 0.18) 100%
  );
  --hero-card-bg: rgba(17, 24, 39, 0.82);
}

html[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #eef2f7;
  --surface: #ffffff;
  --surface-hover: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --accent-primary: #2563eb;
  --accent-secondary: #0891b2;
  --accent-glow: rgba(37, 99, 235, 0.2);
  --border-color: #e2e8f0;
  --shadow-color: rgba(15, 23, 42, 0.08);
  --hero-banner: url("../Pic/Banner/Banner-LightMode.png");
  --hero-scrim: linear-gradient(
    105deg,
    rgba(248, 250, 252, 0.92) 0%,
    rgba(248, 250, 252, 0.78) 42%,
    rgba(248, 250, 252, 0.42) 68%,
    rgba(248, 250, 252, 0.2) 100%
  );
  --hero-card-bg: rgba(255, 255, 255, 0.86);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: "Vazirmatn", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(100% - 32px, var(--container-width));
  margin-inline: auto;
}

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 600px 400px at 15% 20%, rgba(59, 130, 246, 0.12), transparent 70%),
    radial-gradient(ellipse 500px 350px at 85% 60%, rgba(6, 182, 212, 0.08), transparent 70%);
}

body > *:not(.bg-glow) {
  position: relative;
  z-index: 1;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(11, 15, 25, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

html[data-theme="light"] .site-header {
  background: rgba(248, 250, 252, 0.88);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}

.logo {
  font-weight: 800;
  font-size: clamp(1rem, 2vw, 1.25rem);
  white-space: nowrap;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 22px);
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: color var(--transition);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a.active {
  color: var(--text-primary);
  font-weight: 700;
}

.main-nav a.active {
  color: var(--accent-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--surface);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.icon-btn:hover,
.icon-btn:focus-visible {
  background: var(--surface-hover);
  border-color: var(--accent-primary);
  outline: none;
}

.icon-btn img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.lang-toggle {
  width: auto;
  min-width: 38px;
  padding-inline: 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
}

.btn-primary:hover {
  background: #2563eb;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.btn-outline:hover {
  background: rgba(59, 130, 246, 0.1);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.8125rem;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: clamp(480px, 58vw, 620px);
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
  display: flex;
  align-items: center;
}

.hero-banner {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: var(--hero-banner);
  background-size: cover;
  background-position: center right;
  background-repeat: no-repeat;
  transition: opacity var(--transition);
}

html[dir="ltr"] .hero-banner {
  background-position: center left;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: var(--hero-scrim);
}

html[dir="ltr"] .hero-scrim {
  transform: scaleX(-1);
}

.hero .container {
  position: relative;
  z-index: 2;
  width: min(100% - 32px, var(--container-width));
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(200px, 240px) 1fr minmax(240px, 320px);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

html[dir="rtl"] .hero-visual { order: 3; }
html[dir="rtl"] .hero-content { order: 2; }
html[dir="rtl"] .hero-info-stack { order: 1; }

html[dir="ltr"] .hero-visual { order: 1; }
html[dir="ltr"] .hero-content { order: 2; }
html[dir="ltr"] .hero-info-stack { order: 3; }

.hero-visual {
  position: relative;
}

.hero-photo-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  max-height: min(440px, 58vw);
  margin-inline: auto;
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 60px var(--shadow-color);
  backdrop-filter: blur(6px);
}

.hero-photo-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, color-mix(in srgb, var(--bg-primary) 75%, transparent) 0%, transparent 55%),
    radial-gradient(circle at 30% 70%, var(--accent-glow), transparent 60%);
  z-index: 1;
  pointer-events: none;
}

.hero-photo-wrap img.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-photo-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20%;
  z-index: 0;
}

.hero-photo-placeholder img {
  width: 60%;
  opacity: 0.45;
  object-fit: contain;
}

.hero-glow {
  position: absolute;
  bottom: -20px;
  inset-inline: 10%;
  height: 40px;
  background: radial-gradient(ellipse, var(--accent-glow), transparent 70%);
  filter: blur(12px);
  z-index: 2;
}

.hero-content .pre {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin: 0 0 8px;
}

.hero-content h1 {
  font-size: clamp(2rem, 5vw, 2.875rem);
  font-weight: 800;
  margin: 0 0 12px;
  line-height: 1.2;
  color: var(--text-primary);
  text-shadow: 0 0 40px var(--accent-glow);
}

html[data-theme="light"] .hero-content h1 {
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7),
    0 0 28px rgba(255, 255, 255, 0.55);
}

.hero-content h2 {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  color: var(--accent-primary);
  margin: 0 0 16px;
  font-weight: 600;
}

.hero-content p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.9;
  margin: 0;
  max-width: 52ch;
}

html[data-theme="light"] .hero-content p,
html[data-theme="light"] .hero-content .pre {
  color: #334155;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-info-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero .info-card {
  background: var(--hero-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero .info-card .label {
  color: var(--text-secondary);
}

.hero .info-card .value {
  color: var(--text-primary);
}

.info-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), background var(--transition);
}

.info-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
  background: var(--surface-hover);
}

.info-card .ic {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 8px;
}

.info-card .ic img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.info-card .label {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.info-card .value {
  font-weight: 700;
  font-size: 0.875rem;
}

/* ===== Skills ===== */
.skills-section {
  padding-block: var(--section-spacing);
}

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  margin: 0 0 24px;
  font-weight: 700;
}

.section-title img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.skills-panel {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 3vw, 24px);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: clamp(10px, 1.4vw, 14px);
}

.skill-card {
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
}

.skill-icon {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    background var(--transition);
}

.skill-card:hover .skill-icon,
.skill-card:focus-within .skill-icon {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.55);
  box-shadow: 0 10px 28px var(--shadow-color), 0 0 20px var(--accent-glow);
  background: var(--surface-hover);
}

.skill-icon img {
  width: 128%;
  height: 128%;
  object-fit: cover;
  object-position: center;
  display: block;
  mix-blend-mode: normal;
  filter: contrast(1.05) saturate(1.1);
  transition: transform var(--transition);
}

.skill-card:hover .skill-icon img {
  transform: scale(1.04);
}

html[data-theme="light"] .skill-icon {
  background: #0b0f19;
}

html[data-theme="light"] .skill-icon img {
  mix-blend-mode: normal;
  filter: contrast(1.08) saturate(1.12);
}

html[data-theme="light"] .skill-card:hover .skill-icon {
  background: #111827;
}

@media (max-width: 1100px) {
  .skills-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .skills-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 400px) {
  .skills-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ===== Main Content Grid ===== */
.content-section {
  padding-block: var(--section-spacing);
}

.main-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

html[dir="rtl"] .about-block { order: 3; }
html[dir="rtl"] .work-block { order: 2; }
html[dir="rtl"] .side-stack { order: 1; }

html[dir="ltr"] .about-block { order: 1; }
html[dir="ltr"] .work-block { order: 2; }
html[dir="ltr"] .side-stack { order: 3; }

.card-block {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 28px);
  height: 100%;
}

.card-block h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  margin: 0 0 20px;
  font-weight: 700;
}

.card-block h3 img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.card-block p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.9;
  margin: 0 0 16px;
}

.side-stack {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Timeline */
.timeline-item {
  position: relative;
  padding-inline-start: 20px;
  margin-bottom: 20px;
  border-inline-start: 2px solid var(--accent-primary);
}

.timeline-item:last-of-type {
  margin-bottom: 16px;
}

.timeline-item h4 {
  margin: 0 0 4px;
  font-size: 0.9375rem;
  font-weight: 700;
}

.timeline-item .period {
  color: var(--accent-primary);
  font-size: 0.8125rem;
  margin-bottom: 6px;
}

.timeline-item p {
  margin: 0;
  font-size: 0.8125rem;
}

/* Lists */
.contact-list,
.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.contact-list li:last-child {
  border-bottom: none;
}

.contact-list li img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  flex-shrink: 0;
}

.cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  margin-bottom: 16px;
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.cert-item img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  flex-shrink: 0;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
}

.check-list li:last-child {
  border-bottom: none;
}

.check-list .check-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent-primary);
}

.contact-list a {
  color: var(--text-secondary);
  transition: color var(--transition);
}

.contact-list a:hover,
.contact-list a:focus-visible {
  color: var(--accent-primary);
}

.ltr-contact {
  direction: ltr;
  unicode-bidi: isolate;
  display: inline-block;
  text-align: left;
}

.projects-block .check-list {
  max-height: 320px;
  overflow-y: auto;
  padding-inline-end: 4px;
}

/* ===== Contact ===== */
.contact-section {
  padding-block: var(--section-spacing);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 24px;
}

.contact-info-panel {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 28px);
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 28px);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition);
}

.form-group input:focus-visible,
.form-group textarea:focus-visible {
  outline: none;
  border-color: var(--accent-primary);
}

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

.form-note {
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.form-note.is-success {
  color: #22c55e;
}

.form-note.is-error {
  color: #ef4444;
}

#contact-submit:disabled {
  opacity: 0.7;
  cursor: wait;
}

.social-links {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.social-links a {
  padding: 8px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  transition: border-color var(--transition), color var(--transition);
}

.social-links a:hover,
.social-links a:focus-visible {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  margin-top: var(--section-spacing);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--accent-primary);
}

.back-to-top {
  position: fixed;
  bottom: 24px;
  inset-inline-end: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--surface);
  color: var(--accent-primary);
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition);
  z-index: 90;
  box-shadow: 0 4px 16px var(--shadow-color);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background: var(--accent-primary);
  color: #fff;
  outline: none;
}

/* ===== Mobile Nav Overlay ===== */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 98;
}

.nav-overlay.open {
  display: block;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-info-stack {
    grid-column: 1 / -1;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .info-card {
    flex: 1 1 calc(50% - 6px);
    min-width: 180px;
  }

  html[dir="rtl"] .hero-info-stack,
  html[dir="ltr"] .hero-info-stack {
    order: 3;
  }

  html[dir="rtl"] .hero-visual,
  html[dir="ltr"] .hero-visual {
    order: 1;
  }

  html[dir="rtl"] .hero-content,
  html[dir="ltr"] .hero-content {
    order: 2;
  }

  .main-grid {
    grid-template-columns: 1fr 1fr;
  }

  html[dir="rtl"] .about-block,
  html[dir="ltr"] .about-block {
    order: 1;
    grid-column: 1 / -1;
  }

  html[dir="rtl"] .work-block,
  html[dir="ltr"] .work-block {
    order: 2;
  }

  html[dir="rtl"] .side-stack,
  html[dir="ltr"] .side-stack {
    order: 3;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding-block: 2rem;
  }

  .hero-banner {
    background-position: 70% center;
  }

  .hero-scrim {
    background: linear-gradient(
      to bottom,
      color-mix(in srgb, var(--bg-primary) 88%, transparent) 0%,
      color-mix(in srgb, var(--bg-primary) 70%, transparent) 55%,
      color-mix(in srgb, var(--bg-primary) 45%, transparent) 100%
    );
    transform: none;
  }

  .hero-photo-wrap {
    max-height: 360px;
    aspect-ratio: 3 / 4;
  }
  .menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    inset-inline: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
    z-index: 99;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav a {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
  }

  .main-nav a:hover,
  .main-nav a.active {
    background: var(--bg-primary);
  }

  .header-actions .btn-primary {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-info-stack {
    flex-direction: column;
  }

  .info-card {
    flex: 1 1 100%;
  }

  html[dir="rtl"] .hero-visual,
  html[dir="ltr"] .hero-visual,
  html[dir="rtl"] .hero-content,
  html[dir="ltr"] .hero-content,
  html[dir="rtl"] .hero-info-stack,
  html[dir="ltr"] .hero-info-stack {
    order: unset;
  }

  .main-grid {
    grid-template-columns: 1fr;
  }

  html[dir="rtl"] .about-block,
  html[dir="ltr"] .about-block,
  html[dir="rtl"] .work-block,
  html[dir="ltr"] .work-block,
  html[dir="rtl"] .side-stack,
  html[dir="ltr"] .side-stack {
    order: unset;
  }

  .cert-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

html[dir="ltr"] .contact-list span,
html[dir="ltr"] .info-card .value {
  direction: ltr;
  unicode-bidi: embed;
  text-align: start;
}

@media (max-width: 375px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }
}