/* ==========================================================================
   Masood Ghorbani Sadegh — Portfolio Stylesheet
   Technical drawing theme | Bilingual EN/FA | Mobile-first responsive
   ========================================================================== */

/* ----- CSS Custom Properties ----- */
:root {
  /* Color palette — charcoal & silver, matched to masoodghorbani_wide */
  --color-bg:           #080808;
  --color-bg-elevated:  #121212;
  --color-bg-card:      rgba(255, 255, 255, 0.04);
  --color-surface:      rgba(255, 255, 255, 0.06);
  --color-border:       rgba(255, 255, 255, 0.14);
  --color-text:         #d8d8d8;
  --color-text-muted:   #909090;
  --color-heading:      #f0f0f0;

  /* Accent — steel & blueprint line tones */
  --color-accent:       #a8a8a8;
  --color-accent-light: #e0e0e0;
  --color-accent-glow:  rgba(192, 192, 192, 0.28);
  --color-secondary:    #787878;
  --color-secondary-glow: rgba(120, 120, 120, 0.25);
  --color-tertiary:     #c0c0c0;

  /* Technical drawing background */
  --drawing-image:      url('assets/images/masoodghorbani_wide.png');
  --drawing-veil:       rgba(6, 6, 6, 0.42);
  --drawing-veil-heavy: rgba(4, 4, 4, 0.55);
  --drawing-grid:       rgba(160, 160, 160, 0.06);
  --drawing-grid-major: rgba(200, 200, 200, 0.09);
  --color-accent-border: rgba(255, 255, 255, 0.28);
  --color-accent-subtle: rgba(255, 255, 255, 0.05);
  --color-accent-muted:  rgba(255, 255, 255, 0.09);

  /* Liquid glass — stable translucent panels (no backdrop-filter flicker on scroll) */
  --glass-bg:           rgba(255, 255, 255, 0.213);
  --glass-bg-hover:     rgba(255, 255, 255, 0.231);
  --glass-border:       rgba(255, 255, 255, 0.12);
  --glass-border-bright: rgba(255, 255, 255, 0.22);
  --glass-border-dim:   rgba(255, 255, 255, 0.04);
  --glass-highlight:    rgba(255, 255, 255, 0.1);
  --glass-shadow:
    0 4px 20px rgba(0, 0, 0, 0.12),
    0 1px 2px rgba(0, 0, 0, 0.08);
  --glass-shadow-hover:
    0 8px 28px rgba(0, 0, 0, 0.18),
    0 2px 6px rgba(0, 0, 0, 0.1);
  --glass-inset:
    inset 0 1px 0 var(--glass-highlight),
    inset 0 -1px 0 rgba(0, 0, 0, 0.05);

  /* Typography — switched via [lang] attribute on <html> */
  --font-primary:       'Roboto', sans-serif;
  --font-size-base:     1rem;
  --font-size-sm:       0.875rem;
  --font-size-lg:       1.125rem;
  --font-size-xl:       1.25rem;
  --font-size-2xl:      1.5rem;
  --font-size-3xl:      2rem;
  --font-size-4xl:      clamp(2rem, 5vw, 3.25rem);
  --font-size-hero:     clamp(2.5rem, 6vw, 4rem);
  --line-height:        1.6;
  --line-height-tight:  1.2;

  /* Spacing scale */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  5rem;

  /* Layout */
  --container-max:  1140px;
  --header-height:  72px;
  --radius-sm:      10px;
  --radius-md:      16px;
  --radius-lg:      22px;
  --radius-xl:      28px;
  --radius-full:    9999px;

  /* Transitions */
  --transition-fast:   0.2s ease;
  --transition-base:   0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-sm:    0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md:    0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow:  0 0 40px var(--color-accent-glow);

  /* Scroll reveal initial state */
  --reveal-distance: 40px;
}

/* Persian typography override */
html[lang="fa"] {
  --font-primary: 'YekanBakh', 'Roboto', sans-serif;
}

/* ----- Reset & Base ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  overflow-x: hidden;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ----- Full-screen technical drawing background ----- */
.drawing-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.drawing-bg__image {
  position: absolute;
  inset: 0;
  background-image: var(--drawing-image);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  filter: grayscale(1) contrast(1.1) brightness(0.96);
  opacity: 0.58;
  transform: scale(1.02);
}

.drawing-bg__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--drawing-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--drawing-grid) 1px, transparent 1px),
    linear-gradient(var(--drawing-grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--drawing-grid-major) 1px, transparent 1px);
  background-size:
    24px 24px,
    24px 24px,
    120px 120px,
    120px 120px;
  opacity: 0.65;
}

.drawing-bg__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 70% at 50% 45%, transparent 0%, var(--drawing-veil) 78%),
    linear-gradient(180deg, rgba(8, 8, 8, 0.28) 0%, var(--drawing-veil-heavy) 100%);
}

main {
  position: relative;
  z-index: 1;
}

/* Prevent horizontal scroll globally */
body, html, section, .container {
  max-width: 100%;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ----- Utility: Container ----- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

/* ----- Section spacing ----- */
.section {
  padding-block: var(--space-3xl);
  position: relative;
  background: transparent;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section__tag {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-light);
  margin-bottom: var(--space-sm);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top-color: var(--glass-border-bright);
  box-shadow: var(--glass-inset);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-heading);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
}

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
  background: rgba(8, 8, 8, 0.42);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-md);
}

.nav__logo {
  font-size: var(--font-size-xl);
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  flex-shrink: 0;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  inset-inline-start: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-heading);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  z-index: 1001;
}

.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-heading);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ----- Language Switcher (Flags) ----- */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
  padding: 4px;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top-color: var(--glass-border-bright);
  box-shadow: var(--glass-inset);
}

.lang-switcher__btn {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
  opacity: 0.55;
  transition: opacity var(--transition-fast),
              transform var(--transition-base),
              border-color var(--transition-fast),
              box-shadow var(--transition-base),
              background var(--transition-fast);
}

.lang-switcher__btn:hover {
  opacity: 0.9;
  transform: scale(1.08);
  border-color: var(--color-border);
}

.lang-switcher__btn--active {
  opacity: 1;
  border-color: var(--glass-border-bright);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: var(--glass-inset), 0 4px 16px rgba(0, 0, 0, 0.2);
  transform: scale(1.05);
}

.lang-switcher__btn--active:hover {
  opacity: 1;
}

.lang-switcher__flag {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
  background: transparent;
}

.hero__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-2xl);
  position: relative;
  z-index: 1;
}

/* Hero entrance animation */
.hero__content {
  animation: heroEntrance 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes heroEntrance {
  from {
    opacity: 0;
    transform: translateY(60px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__greeting {
  font-size: var(--font-size-lg);
  color: var(--color-accent-light);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.hero__name {
  font-size: var(--font-size-hero);
  font-weight: 900;
  color: var(--color-heading);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, #ffffff 20%, var(--color-accent-light) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__title {
  font-size: var(--font-size-xl);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  min-height: 2em;
}

.hero__typing {
  color: var(--color-secondary);
  font-weight: 500;
}

.hero__cursor {
  color: var(--color-accent-light);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero__location {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.hero__location::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-light);
  box-shadow: 0 0 8px var(--color-accent-glow);
  flex-shrink: 0;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast), box-shadow var(--transition-base), background var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before { opacity: 1; }

.btn--primary {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.92) 0%,
    rgba(210, 210, 210, 0.82) 100%
  );
  color: #111;
  border: 1px solid rgba(255, 255, 255, 0.45);
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--color-accent-glow);
}

.btn--outline {
  border: 1px solid var(--glass-border);
  border-top-color: var(--glass-border-bright);
  color: var(--color-heading);
  background: var(--glass-bg);
  box-shadow: var(--glass-inset);
}

.btn--outline:hover {
  border-color: var(--glass-border-bright);
  background: var(--glass-bg-hover);
  transform: translateY(-2px);
  box-shadow: var(--glass-shadow-hover), var(--glass-inset);
}

/* ----- Hero Avatar Placeholder ----- */
.hero__visual {
  display: flex;
  justify-content: center;
  animation: heroVisualEntrance 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

@keyframes heroVisualEntrance {
  from {
    opacity: 0;
    transform: scale(0.8) rotate(-5deg);
  }
  to {
    opacity: 1;
    transform: scale(1) rotate(0);
  }
}

.hero__avatar {
  position: relative;
  width: clamp(220px, 30vw, 320px);
  height: clamp(220px, 30vw, 320px);
}

.hero__avatar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
}

.hero__avatar-ring--outer {
  border-color: var(--glass-border-bright);
  opacity: 0.45;
  animation: ringRotate 8s linear infinite;
}

.hero__avatar-ring--inner {
  inset: 12px;
  border-color: var(--glass-border);
  opacity: 0.65;
  animation: ringRotate 6s linear infinite reverse;
}

@keyframes ringRotate {
  to { transform: rotate(360deg); }
}

.hero__avatar-inner {
  position: absolute;
  inset: 24px;
  border-radius: 50%;
  background: var(--glass-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glass-shadow), var(--glass-inset);
  overflow: hidden;
  border: 1px solid var(--glass-border-bright);
}

.hero__avatar-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 55%,
    rgba(8, 8, 8, 0.55) 100%
  );
  opacity: 0.85;
  z-index: 2;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.hero__avatar-inner:hover::before {
  opacity: 0.5;
}

.hero__avatar-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
  position: relative;
  z-index: 1;
  transition: transform var(--transition-slow), filter var(--transition-base);
  filter: contrast(1.05) brightness(0.95);
}

.hero__avatar-inner:hover .hero__avatar-photo {
  transform: scale(1.04);
  filter: contrast(1.1) brightness(1);
}

.hero__avatar-particles span {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-light);
}

.hero__avatar-particles span:nth-child(1) { top: 5%; inset-inline-start: 50%; animation: particleOrbit 4s linear infinite; }
.hero__avatar-particles span:nth-child(2) { top: 50%; inset-inline-end: 0; animation: particleOrbit 5s linear infinite 1s; }
.hero__avatar-particles span:nth-child(3) { bottom: 5%; inset-inline-start: 20%; animation: particleOrbit 6s linear infinite 2s; }
.hero__avatar-particles span:nth-child(4) { top: 30%; inset-inline-start: 0; animation: particleOrbit 4.5s linear infinite 0.5s; }

@keyframes particleOrbit {
  0%   { transform: rotate(0deg) translateX(140px) rotate(0deg); opacity: 1; }
  50%  { opacity: 0.4; }
  100% { transform: rotate(360deg) translateX(140px) rotate(-360deg); opacity: 1; }
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--space-xl);
  inset-inline-start: 50%;
  transform: translateX(-50%);
  animation: scrollBounce 2s ease-in-out infinite;
}

html[dir="rtl"] .hero__scroll {
  transform: translateX(50%);
}

.hero__scroll-icon {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid var(--color-text-muted);
  border-radius: 12px;
  position: relative;
}

.hero__scroll-icon::after {
  content: '';
  position: absolute;
  top: 6px;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-accent-light);
  border-radius: 2px;
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

html[dir="rtl"] .hero__scroll {
  animation-name: scrollBounceRtl;
}

@keyframes scrollBounceRtl {
  0%, 100% { transform: translateX(50%) translateY(0); }
  50%       { transform: translateX(50%) translateY(8px); }
}

@keyframes scrollDot {
  0%   { opacity: 1; top: 6px; }
  100% { opacity: 0; top: 18px; }
}

/* ==========================================================================
   LIQUID GLASS SURFACES (iOS-inspired)
   ========================================================================== */
.glass-surface,
.about__highlight,
.about__card,
.experience__card,
.skill-card {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top-color: var(--glass-border-bright);
  border-bottom-color: var(--glass-border-dim);
  box-shadow: var(--glass-shadow), var(--glass-inset);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base),
    border-color var(--transition-base);
}

.glass-surface::before,
.about__highlight::before,
.about__card::before,
.experience__card::before,
.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.066) 0%,
    rgba(255, 255, 255, 0.017) 30%,
    transparent 55%
  );
  pointer-events: none;
  z-index: 0;
}

.glass-surface:hover,
.about__highlight:hover,
.about__card:hover,
.experience__card:hover,
.skill-card:hover {
  background: var(--glass-bg-hover);
  border-top-color: var(--glass-border-bright);
  box-shadow: var(--glass-shadow-hover), var(--glass-inset);
}

.glass-surface > *,
.about__highlight > *,
.about__card > *,
.experience__card > *,
.skill-card > * {
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about__highlights {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.about__highlight {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-lg);
  align-items: start;
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.about__highlight:hover {
  transform: translateY(-3px);
}

.about__highlight-icon {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 2px;
  flex-shrink: 0;
}

.about__highlight-icon .line-icon {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-accent-light);
}

.about__highlight-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-heading);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-sm);
}

.about__highlight-text {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  line-height: var(--line-height);
}

.about__details-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-heading);
  text-align: center;
  margin-bottom: var(--space-xl);
}

.about__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}

.about__card {
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.about__card:hover {
  transform: translateY(-3px);
}

.about__card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.about__card-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.about__card-icon .line-icon {
  width: 1.125rem;
  height: 1.125rem;
  color: var(--color-accent-light);
}

.about__card-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0;
}

.about__card-value {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-heading);
  word-break: break-word;
}

.about__card-value a {
  color: var(--color-accent-light);
  transition: color var(--transition-fast);
}

.about__card-value a:hover {
  color: var(--color-secondary);
}

.about__card--phones {
  grid-column: 1 / -1;
}

.about__card--phones .about__card-meta {
  margin-bottom: var(--space-md);
}

.about__card--phones .about__card-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0;
}

/* ----- Phone number list ----- */
.phone-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
  margin: 0;
  padding: 0;
}

.phone-list--default {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
}

.phone-list--default .phone-list__item {
  min-width: 0;
}

.phone-list--default .phone-list__link {
  height: 100%;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md);
}

.phone-list--default .phone-list__number {
  font-size: var(--font-size-sm);
  text-align: center;
  flex: 1;
  min-width: 0;
}

.phone-list--default .phone-list__action {
  display: none;
}

.phone-list__link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top-color: var(--glass-border-bright);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-inset);
  transition: transform var(--transition-base),
              border-color var(--transition-base),
              background var(--transition-base),
              box-shadow var(--transition-base);
}

.phone-list__link:hover {
  border-top-color: var(--glass-border-bright);
  background: var(--glass-bg-hover);
  box-shadow: var(--glass-shadow), var(--glass-inset);
  transform: translateY(-1px);
}

.phone-list__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent-light);
}

.phone-list__svg,
.phone-list__icon .line-icon {
  width: 1.125rem;
  height: 1.125rem;
}

.phone-list__number {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-heading);
  letter-spacing: 0.02em;
  direction: ltr;
  unicode-bidi: embed;
}

.phone-list__action {
  margin-inline-start: auto;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-light);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--transition-fast),
              transform var(--transition-base),
              background var(--transition-fast),
              color var(--transition-fast);
}

html[dir="rtl"] .phone-list__action {
  transform: translateX(6px);
}

.phone-list__action-svg {
  width: 16px;
  height: 16px;
}

html[dir="rtl"] .phone-list__action-svg {
  transform: scaleX(-1);
}

.phone-list__link:hover .phone-list__action {
  opacity: 1;
  transform: translateX(0);
  background: rgba(255, 255, 255, 0.18);
  color: var(--color-heading);
  border-color: rgba(255, 255, 255, 0.28);
}

/* Compact variant — footer */
.phone-list--compact .phone-list__link {
  padding: var(--space-sm) var(--space-md);
}

.phone-list--compact .phone-list__icon .line-icon,
.phone-list--compact .phone-list__svg {
  width: 1rem;
  height: 1rem;
}

.phone-list--compact .phone-list__number {
  font-size: var(--font-size-sm);
}

.footer__contact-item--phones {
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-sm);
}

.footer__phones-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent-light);
}

.social-list__link svg {
  width: 20px;
  height: 20px;
}

.social-list__link--phone:hover {
  background: var(--glass-bg-hover);
}

/* ==========================================================================
   EXPERIENCE TIMELINE
   ========================================================================== */
.experience__timeline {
  display: grid;
  gap: var(--space-lg);
  max-width: 800px;
  margin-inline: auto;
  position: relative;
}

/* Vertical line */
.experience__timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  inset-inline-start: 24px;
  width: 1px;
  background: linear-gradient(
    to bottom,
    var(--glass-border-bright),
    var(--glass-border),
    transparent
  );
  opacity: 0.7;
}

.experience__item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.experience__dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-accent-light);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  box-shadow: var(--glass-inset), var(--glass-shadow);
  transition: box-shadow var(--transition-base), transform var(--transition-base), background var(--transition-base);
}

.experience__item:hover .experience__dot {
  background: var(--glass-bg-hover);
  box-shadow: var(--glass-shadow-hover), var(--glass-inset);
  transform: scale(1.06);
}

.experience__card {
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.experience__card:hover {
  transform: translateX(6px);
}

html[dir="rtl"] .experience__card:hover {
  transform: translateX(-8px);
}

.experience__card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-heading);
  line-height: var(--line-height-tight);
}

/* ==========================================================================
   SKILLS / TECH STACK
   ========================================================================== */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-md);
}

.skill-card {
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  cursor: default;
}

.skill-card:hover {
  transform: translateY(-4px) scale(1.02);
}

.skill-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
  color: var(--color-accent-light);
}

.skill-card__icon .line-icon {
  width: 1.625rem;
  height: 1.625rem;
}

.skill-card:hover .skill-card__icon .line-icon {
  color: var(--color-heading);
}

.skill-card__name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-heading);
}

.skill-card__category {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: rgba(8, 8, 8, 0.415);
  border-top: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  padding-block: var(--space-2xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1.5fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__name {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-sm);
}

.footer__role {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height);
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-light);
  margin-bottom: var(--space-md);
}

.footer__contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer__contact-item:hover {
  color: var(--color-heading);
}

.footer__contact-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent-light);
}

.footer__contact-icon .line-icon {
  width: 1.125rem;
  height: 1.125rem;
}

.social-list__svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* ----- Shared line icons ----- */
.line-icon {
  display: block;
  flex-shrink: 0;
  color: currentColor;
}

.footer__contact-item a {
  color: inherit;
  word-break: break-all;
}

.footer__contact-item a:hover {
  color: var(--color-accent-light);
}

.social-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.social-list__link {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top-color: var(--glass-border-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--glass-inset);
  transition: transform var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
}

.social-list__link:hover {
  transform: translateY(-3px);
  background: var(--glass-bg-hover);
  box-shadow: var(--glass-shadow-hover), var(--glass-inset);
}

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer__copy {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS (Intersection Observer)
   Content is visible by default; hidden only when JS is active.
   ========================================================================== */
.reveal {
  opacity: 1;
  transform: none;
}

html.js .reveal:not(.reveal--visible) {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

html.js .reveal--delay:not(.reveal--visible) {
  transition-delay: 0.15s;
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children in grids */
html.js .about__grid .reveal:nth-child(2):not(.reveal--visible) { transition-delay: 0.1s; }
html.js .about__grid .reveal:nth-child(3):not(.reveal--visible) { transition-delay: 0.2s; }
html.js .about__grid .reveal:nth-child(4):not(.reveal--visible) { transition-delay: 0.3s; }
html.js .about__grid .reveal:nth-child(5):not(.reveal--visible) { transition-delay: 0.4s; }

html.js .experience__item.reveal:nth-child(2):not(.reveal--visible) { transition-delay: 0.1s; }
html.js .experience__item.reveal:nth-child(3):not(.reveal--visible) { transition-delay: 0.15s; }
html.js .experience__item.reveal:nth-child(4):not(.reveal--visible) { transition-delay: 0.2s; }
html.js .experience__item.reveal:nth-child(5):not(.reveal--visible) { transition-delay: 0.25s; }
html.js .experience__item.reveal:nth-child(6):not(.reveal--visible) { transition-delay: 0.3s; }
html.js .experience__item.reveal:nth-child(7):not(.reveal--visible) { transition-delay: 0.35s; }

html.js .skills__grid .reveal:nth-child(odd):not(.reveal--visible)  { transition-delay: 0.05s; }
html.js .skills__grid .reveal:nth-child(even):not(.reveal--visible) { transition-delay: 0.1s; }

/* ==========================================================================
   RESPONSIVE — Mobile First Breakpoints
   ========================================================================== */

/* Tablet */
@media (max-width: 992px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__visual {
    order: -1;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__location {
    justify-content: center;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* Desktop — portrait visible in full-screen drawing */
@media (min-width: 993px) {
  .hero__container {
    grid-template-columns: 1fr;
    max-width: 640px;
    text-align: start;
  }

  .hero__visual {
    display: none;
  }

  html[dir="rtl"] .hero__container {
    text-align: start;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
    --space-3xl: 3.5rem;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    inset-inline-end: -100%;
    width: min(280px, 85vw);
    height: 100vh;
    height: 100dvh;
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    background: rgba(8, 8, 8, 0.45);
    border-inline-start: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow), var(--glass-inset);
    gap: var(--space-lg);
    transition: inset-inline-end var(--transition-base);
    z-index: 999;
  }

  .nav__menu--open {
    inset-inline-end: 0;
  }

  /* Overlay when menu open */
  .nav__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
  }

  .nav__overlay--visible {
    opacity: 1;
    visibility: visible;
  }

  .section__title {
    font-size: var(--font-size-2xl);
  }

  .experience__timeline::before {
    inset-inline-start: 20px;
  }

  .experience__item {
    grid-template-columns: 40px 1fr;
    gap: var(--space-md);
  }

  .experience__dot {
    width: 40px;
    height: 40px;
    font-size: 0.75rem;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .skills__grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .hero__avatar {
    width: 200px;
    height: 200px;
  }
}

/* Small mobile — stack phone numbers */
@media (max-width: 640px) {
  .phone-list--default {
    grid-template-columns: 1fr;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .container {
    padding-inline: var(--space-md);
  }

  .btn {
    width: 100%;
  }

  .hero__actions {
    flex-direction: column;
  }
}

/* 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;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}
