:root {
  --bg: #f8fafc;
  --text: #0f172a;
  --muted: #334155;
  --card: #ffffff;
  --primary: #6366f1;
  --primary-2: #22d3ee;
  --accent: #f472b6;
  --ring: rgba(99, 102, 241, .25);
  --shadow: 0 10px 25px rgba(0, 0, 0, .08);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, .15);
  --glass: rgba(255, 255, 255, .75);
  --border: #e2e8f0;
}

:root[data-theme="dark"] .theme-toggle__icon {
  display: inline-block;
  padding: 10px 8px;
  border-radius: 50%;
  border: 2px solid #ffffff;
  line-height: 1;
  box-shadow: 0 6px 18px rgba(255,255,255,0.06);
  transform: translateZ(0);
}

:root[data-theme="dark"] .hamburger span {
  background: #ffffff;
}

:root[data-theme="dark"] .hamburger {
  color: #ffffff;
}

:root[data-theme="dark"] .hamburger:focus-visible span,
:root[data-theme="dark"] .hamburger:hover span {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(255,255,255,0.06);
}

:root[data-theme="dark"] {
  --bg: #0b1020;
  --text: #e6e8f2;
  --muted: #a5b4fc;
  --card: #12172a;
  --primary: #8b8eff;
  --primary-2: #23c6e0;
  --accent: #ff7ac3;
  --ring: rgba(139, 142, 255, .25);
  --shadow: 0 10px 25px rgba(0, 0, 0, .4);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, .55);
  --glass: rgba(18, 23, 42, .7);
  --border: #1f2940;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body { height: 100%; }

body {
  font-family: "Vazirmatn FD", "Vazirmatn", system-ui, -apple-system, Segoe UI, sans-serif;
  background: var(--bg);
  color: var(--text);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  text-decoration: none;
  color: inherit;
  transition: .25s;
}

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none!important; transition: none!important; }
}

.btn {
  cursor: pointer;
  padding: .85rem 1.4rem;
  border: none;
  border-radius: 999px;
  font-weight: 800;
  transition: .25s;
  letter-spacing: .2px;
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--primary-2));
  background-size: 200% 200%;
  animation: btnShift 6s ease infinite;
  color: #fff;
  box-shadow: 0 6px 18px rgba(99, 102, 241, .35);
}

#contact .btn-primary{
  width: 110px;
  margin: auto;
}

@keyframes btnShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.04);
  filter: saturate(1.1);
}

.btn-outline-close {
  color: white;
  background: transparent;
  border: 2px solid white;
}

.btn-outline-close:hover {
  background: var(--primary);
  border:solid 2px var(--primary);
  color: #fff;
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.btn-outline:hover {
  border: solid 2px var(--primary);
  background: var(--primary);
  color: #fff;
}

.nav {
  position: sticky;
  top: 0;
  background: var(--glass);
  backdrop-filter: blur(12px);
  z-index: 100;
  border-bottom: 1px solid var(--border);
}
.home-i{
  margin-right: -0.7rem;
}
.nav__inner {
  max-width: 1100px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  flex-direction: row;
  align-items: center;
  gap: 1rem;
  padding: .9rem 1rem;
}

.logo {
  font-weight: 900;
  font-size: 1.25rem;
  margin: 0 auto;
  text-align: center;
  color: var(--primary);
}

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

.menu a {
  position: relative;
  font-weight: 700;
  opacity: .9;
}

.menu a::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--primary);
  transition: .25s;
}

.menu a:hover::after { width: 100%; }

.nav__actions {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: .4s;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: .25s;
  box-shadow: var(--shadow);
}

.theme-toggle:hover { transform: translateY(-2px); }

.hero {
  position: relative;
  padding: 6rem 1rem;
  text-align: center;
  color: #fff;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(1200px 500px at 70% -10%, rgba(99, 102, 241, .25), transparent 60%),
              radial-gradient(900px 400px at 20% 0%, rgba(34, 211, 238, .25), transparent 60%),
              linear-gradient(135deg, var(--primary), var(--primary-2), var(--accent));
  background-size: 300% 300%;
  animation: heroGradient 12s ease infinite;
  overflow: hidden;
}

@keyframes heroGradient {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero h1 {
  font-size: 2.1rem;
  animation: fadeInDown 800ms ease both;
}

.hero p {
  margin: .8rem 0 1.2rem;
  font-size: 1.1rem;
  animation: fadeInUp 900ms ease both;
}

.hero__actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  animation: fadeInUp 1.1s ease both;
}

.hero__ornament {
  position: absolute;
  inset: auto auto -60px 50%;
  width: 500px;
  height: 500px;
  transform: translateX(-50%);
  filter: blur(80px) opacity(.4);
  background: radial-gradient(closest-side, #fff, transparent 60%);
  pointer-events: none;
}

section { padding: 4rem 1rem; }

.container {
  max-width: 1100px;
  margin: auto;
}

h2 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 1.6rem;
  color: var(--text);
}

.about-p {
  text-align: center;
  color: var(--muted);
}

.features__grid,
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.feature,
.card {
  background: var(--card);
  padding: 2rem;
  border-radius: 18px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(18px);
  transition: transform .25s ease, box-shadow .25s ease, opacity .6s ease;
}

.feature:hover,
.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.feature__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

details {
  margin-bottom: 1rem;
  padding: 1rem;
  background: var(--card);
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  cursor: pointer;
}

details[open] {
  background: color-mix(in oklab, var(--card), var(--primary) 6%);
}

details summary {
  font-weight: 800;
  list-style: none;
  position: relative;
  padding-right: 22px;
}
.nav__inner {
  max-width: 1100px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: .9rem 1rem;
  position: relative;
}

.logo-theme-wrapper {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.7rem;
}




details summary::marker { display: none; }

details summary::after {
  content: "+";
  position: absolute;
  right: 0;
  font-size: 1.1rem;
  transition: transform .25s ease;
}

details[open] summary::after { content: "-"; }

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input,
textarea,
select {
  padding: .85rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  color: var(--text);
  transition: .25s;
  box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
}

input::placeholder,
textarea::placeholder {
  color: #8b94a7;
  opacity: .9;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--ring);
  outline: none;
}

input:invalid[aria-invalid="true"],
select:invalid[aria-invalid="true"],
textarea:invalid[aria-invalid="true"] {
  border-color: #ef4444;
  box-shadow: 0 0 0 4px rgba(239, 68, 68, .2);
}

.error {
  color: #ef4444;
  font-size: .85rem;
  min-height: 1rem;
}

.modal {
  border: none;
  border-radius: 18px;
  padding: 0;
  max-width: 480px;
  width: min(95%, 520px);
  transform: translateY(10px) scale(.98);
  opacity: 0;
  transition: all .25s ease;
}

.modal--active {
  transform: translateY(0) scale(1);
  opacity: 1;
}

body.modal-open { overflow: hidden; }

.modal__content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--card);
}

.modal__actions {
  display: flex;
  gap: .6rem;
  justify-content: flex-start;
}

::backdrop { background: rgba(0, 0, 0, .5); }

#toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: .9rem 1.2rem;
  border-radius: 14px;
  opacity: 0;
  pointer-events: none;
  color: #fff;
  font-weight: 800;
  font-size: .95rem;
  letter-spacing: .3px;
  box-shadow: var(--shadow-lg);
  transition: all .35s ease;
}

#toast.success { background: #22c55e; }
#toast.error   { background: #ef4444; }

#toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.in-view {
  opacity: 1!important;
  transform: translateY(0)!important;
  transition: all .6s ease;
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 840px) {
  .nav__inner { gap: .5rem; }
  .menu {
    display: none;
    flex-direction: column;
    gap: 1rem;
    position: absolute;
    top: 100%;
    right: 0;
    width: 92%;
    padding: 1rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
  }
  .menu--open { display: flex!important; }
  .hamburger  { display: flex; }
  .hero h1 { font-size: 1.7rem; }
  .hero p  { font-size: 1rem; }
  .hero__actions {
    flex-direction: column;
    gap: .7rem;
  }
  form input,
  form textarea,
  form select {
    font-size: .98rem;
    padding: .78rem;
  }
  .btn {
    font-size: .98rem;
    padding: .75rem 1.15rem;
  }
  .modal {
    width: 95%;
    padding: 1rem;
  }
  .modal__content { gap: .85rem; }
}

.card-p { margin-bottom: .5rem; }

.contact p {
  text-align: center;
  transition: .25s;
}

.contact p:hover { color: var(--primary); }

.theme-toggle .icon {
  width: 22px;
  height: 22px;
  stroke: currentColor;
}

.hidden { display: none; }

:root[data-theme="dark"] .hamburger span {
  background: #fff;
}
:root[data-theme="dark"] .hamburger {
  color: #fff;
}

:root[data-theme="dark"] #iconSun {
  stroke: #fff;
  border: 2px solid #fff;
  border-radius: 50%;
  padding: 4px;
  box-sizing: content-box;
}

.logo-theme-wrapper {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

@media (max-width: 840px) {
  .nav__inner {
    justify-content:space-between ;
    flex-direction: row;
  }
  .hamburger {
    order: 1;
  }
  .logo-theme-wrapper {
    order: 2;
  }
}

.hidden { display: none; }
@media (max-width: 840px) {
  .hero__actions {
    flex-direction: row;
    justify-content: center;
    gap: 0.7rem;
  }
  .hero__actions .btn {
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
    min-width: 120px;
    text-align: center;
  }
  .btn-primary {
    background: linear-gradient(90deg, #f472b6, #6366f1, #22d3ee);
    color: #fff;
  }
  .btn-outline:hover {
    background: #6366f1;
    border-color: #6366f1;
    color: #fff;
  }
    .logo-theme-wrapper {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
}
.nav__inner {
  max-width: 1100px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 1rem;
  position: relative;
}


.logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--primary);
}


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

.menu a {
  font-weight: 700;
  position: relative;
}

.menu a::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: .25s;
}
.menu a:hover::after { width: 100%; }


.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: .4s;
}


@media (max-width: 840px) {
  .menu {
    display: none;
    flex-direction: column;
    gap: 1rem;
    position: absolute;
    top: 100%;
    right: 0;
    width: 90%;
    padding: 1rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
  }

  .menu.menu--open {
    display: flex !important;
  }

  .hamburger {
    display: flex;
    order: 1;
  }

  .logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    order: 2;
  }
}