/* ==========================================================================
   آموزشگاه رانندگی ابوذر — stylesheet
   Tailwind CSS (CDN, utility classes in HTML) handles layout, spacing,
   color tokens and typography scale. This file holds everything Tailwind's
   default build can't express: brand keyframes, component states, and the
   motion system.
   ========================================================================== */

/* ---------------------------------------------------------------------------
   1. ROOT VARIABLES
--------------------------------------------------------------------------- */
:root {
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------------------------------------------------------------------------
   2. TYPOGRAPHY & BASE
--------------------------------------------------------------------------- */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Vazirmatn', sans-serif;
}

::selection {
  background: #E7B347;
  color: #0F172A;
}

:focus-visible {
  outline: 2px solid #E7B347;
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------------------------------------------------------------------------
   3. NAVBAR
   Glassmorphism is scoped ONLY to the navbar, floating cards, badges,
   and the mobile nav chrome — never on full sections.
--------------------------------------------------------------------------- */
.glass-dark {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.navbar-solid {
  background: rgba(15, 23, 42, .86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

/* Scroll-spy active link: gold text, underline, glowing dot */
.nav-link {
  position: relative;
  padding-bottom: 6px;
  transition: color .35s ease;
}

.nav-dot {
  position: absolute;
  top: -11px;
  right: 50%;
  translate: 50% 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #E7B347;
  opacity: 0;
  box-shadow: 0 0 8px 2px rgba(231, 179, 71, .8);
  transition: opacity .35s ease;
}

.nav-underline {
  position: absolute;
  right: 0;
  left: 0;
  bottom: 0;
  height: 2px;
  background: #E7B347;
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform .35s var(--ease);
  box-shadow: 0 0 6px rgba(231, 179, 71, .6);
}

.nav-link.active { color: #E7B347; font-weight: 600; }
.nav-link.active .nav-underline { transform: scaleX(1); }
.nav-link.active .nav-dot { opacity: 1; }

/* Premium fullscreen mobile nav — blur, dark overlay, slide from the right */
#mobileNav {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(15, 23, 42, .97);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  transform: translateX(100%);
  transition: transform .55s var(--ease);
  display: flex;
  flex-direction: column;
  visibility: hidden;
}

#mobileNav.open { transform: translateX(0); visibility: visible; }

.mnav-item {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}

#mobileNav.open .mnav-item { opacity: 1; transform: translateY(0); }
#mobileNav.open .mnav-item:nth-child(1) { transition-delay: .10s; }
#mobileNav.open .mnav-item:nth-child(2) { transition-delay: .16s; }
#mobileNav.open .mnav-item:nth-child(3) { transition-delay: .22s; }
#mobileNav.open .mnav-item:nth-child(4) { transition-delay: .28s; }
#mobileNav.open .mnav-item:nth-child(5) { transition-delay: .34s; }
#mobileNav.open .mnav-item:nth-child(6) { transition-delay: .40s; }

#mobileMenuBtn { transition: transform .3s var(--ease); }

/* ---------------------------------------------------------------------------
   4. HERO
--------------------------------------------------------------------------- */
.gold-text {
  background: linear-gradient(90deg, #f3cf82, #E7B347 55%, #c8933a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.kenburns {
  transform-origin: 50% 100%;
  animation: kenBurns 26s ease-in-out infinite alternate;
}

.cloud-drift {
  animation: cloudDrift 46s ease-in-out infinite alternate;
}

.sun-pulse {
  animation: sunPulse 5.5s ease-in-out infinite;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 230, 180, .9), rgba(255, 230, 180, 0) 70%);
  animation: particleFloat 9s ease-in-out infinite;
}

/* ---------------------------------------------------------------------------
   5. BUTTONS
--------------------------------------------------------------------------- */
.btn-primary {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(135deg, #f6d999, #E7B347 55%, #cf9c3c);
  background-size: 180% 180%;
  color: #0F172A;
  box-shadow: 0 10px 28px -8px rgba(231, 179, 71, .55);
  transition: transform .55s var(--ease), box-shadow .55s var(--ease);
  animation: gradientMove 6s ease infinite, glowPulse 3.4s ease-in-out infinite;
}

.btn-primary:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 20px 44px -10px rgba(231, 179, 71, .65);
}

.btn-primary:active { transform: translateY(-1px) scale(.99); }

.btn-ghost {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1.5px solid rgba(255, 255, 255, .3);
  color: #fff;
  transition: background .5s var(--ease), border-color .5s var(--ease),
              transform .55s var(--ease), box-shadow .55s var(--ease);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .09);
  border-color: rgba(231, 179, 71, .6);
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 14px 30px -12px rgba(231, 179, 71, .35);
}

.btn-ghost:active { transform: translateY(-1px) scale(.99); }

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, .55);
  transform: scale(0);
  pointer-events: none;
  animation: rippleAnim .7s var(--ease) forwards;
}

.btn-ghost .ripple { background: rgba(231, 179, 71, .45); }

/* ---------------------------------------------------------------------------
   6. CARDS
--------------------------------------------------------------------------- */

/* Feature cards — strict design system: solid white, dark text, gold-only
   accents. Never change text color on hover; only lift / shadow / border /
   icon respond. */
.feature-card {
  background: #FFFFFF;
  border: 1px solid rgba(15, 23, 42, .06);
  box-shadow: 0 20px 60px rgba(15, 23, 42, .08);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s var(--ease);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 28px 70px rgba(15, 23, 42, .14);
  border-color: #E7B347;
}

.feature-card .feature-icon {
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}

.feature-card:hover .feature-icon {
  transform: rotate(3deg);
  box-shadow: 0 0 0 8px rgba(231, 179, 71, .16), 0 0 22px rgba(231, 179, 71, .35);
}

/* "Why us" icon rows — lighter hover treatment */
.why-row { transition: transform .45s var(--ease); }
.why-row:hover { transform: translateX(-4px); }
.why-row:hover .why-icon { transform: translateY(-3px) scale(1.08); }
.why-icon { transition: transform .45s var(--ease); }

/* ---------------------------------------------------------------------------
   7. TIMELINE (registration process)
--------------------------------------------------------------------------- */
.timeline-line {
  transform-origin: right center;
  transform: scaleX(0);
  transition: transform 1.2s var(--ease);
}

.timeline-line.in { transform: scaleX(1); }

.node-pop {
  transition: transform .55s var(--ease), opacity .55s var(--ease);
  transform: scale(.6);
  opacity: 0;
  transition-delay: calc(var(--d, 0) * 140ms);
}

.node-pop.in { transform: scale(1); opacity: 1; }

/* ---------------------------------------------------------------------------
   8. FAQ
--------------------------------------------------------------------------- */
.faq-item { border-bottom: 1px solid rgba(17, 24, 39, .08); }

.faq-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .5s var(--ease);
}

.faq-panel > div { overflow: hidden; }
.faq-item.open .faq-panel { grid-template-rows: 1fr; }
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-chevron { transition: transform .4s var(--ease); }

/* ---------------------------------------------------------------------------
   9. FOOTER
   No custom rules — footer relies entirely on Tailwind utility classes.
--------------------------------------------------------------------------- */

/* ---------------------------------------------------------------------------
   10. MOTION SYSTEM (reveal / mask scroll animations + idle icon loops)
--------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(34px) scale(.98);
  filter: blur(9px);
  transition: opacity .85s var(--ease), transform .85s var(--ease), filter .85s var(--ease);
  transition-delay: calc(var(--d, 0) * 100ms);
}

.reveal.in { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }

.mask { overflow: hidden; display: block; }

.mask-inner {
  display: block;
  transform: translateY(112%);
  transition: transform .9s var(--ease);
  transition-delay: calc(var(--d, 0) * 110ms);
}

.mask.in .mask-inner { transform: translateY(0); }

.anim-float  { animation: floatY 4.5s ease-in-out infinite; }
.anim-rotate { animation: tinyRotate 5s ease-in-out infinite; }
.anim-shimmer{ animation: shimmer 2.6s ease-in-out infinite; }
.anim-bob    { animation: gentleBob 5.5s ease-in-out infinite; }
.anim-steer  { animation: slowSteer 6.5s ease-in-out infinite; }

@keyframes gradientMove  { 0%, 100% { background-position: 0% 50%; }   50% { background-position: 100% 50%; } }
@keyframes glowPulse     { 0%, 100% { box-shadow: 0 10px 28px -8px rgba(231,179,71,.4); } 50% { box-shadow: 0 14px 38px -8px rgba(231,179,71,.68); } }
@keyframes rippleAnim    { to { transform: scale(2.6); opacity: 0; } }
@keyframes kenBurns      { from { transform: scale(1); } to { transform: scale(1.055); } }
@keyframes cloudDrift    { from { transform: translateX(-4%); } to { transform: translateX(4%); } }
@keyframes sunPulse      { 0%, 100% { opacity: .55; transform: scale(1); } 50% { opacity: .9; transform: scale(1.12); } }
@keyframes particleFloat { 0% { transform: translateY(0) scale(1); opacity: 0; } 15% { opacity: .8; } 50% { transform: translateY(-38px) scale(1.15); opacity: .55; } 100% { transform: translateY(-78px) scale(.9); opacity: 0; } }
@keyframes floatY        { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes tinyRotate    { 0%, 100% { transform: rotate(-3deg); } 50% { transform: rotate(3deg); } }
@keyframes shimmer       { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .6; transform: scale(1.18); } }
@keyframes gentleBob     { 0%, 100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-4px) rotate(4deg); } }
@keyframes slowSteer     { 0%, 100% { transform: rotate(-6deg); } 50% { transform: rotate(6deg); } }

/* ---------------------------------------------------------------------------
   11. RESPONSIVE
--------------------------------------------------------------------------- */
@media (max-width: 1023px) {
  .timeline-line { transform-origin: top center; }
}

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

  .reveal, .mask-inner, .feature-card, .feature-icon, .why-row, .why-icon,
  .btn-primary, .btn-ghost, .timeline-line, .node-pop, .faq-panel,
  .mnav-item, #mobileNav {
    transition: none !important;
  }

  .reveal { opacity: 1 !important; transform: none !important; filter: none !important; }
  .mask-inner { transform: none !important; }
  .timeline-line, .node-pop { transform: none !important; opacity: 1 !important; }

  .anim-float, .anim-rotate, .anim-shimmer, .anim-bob, .anim-steer,
  .btn-primary, .kenburns, .cloud-drift, .sun-pulse, .particle {
    animation: none !important;
  }
}