/**
 * TeleDNS — page sections
 */

/* ——— Hero ——— */
.hero {
  position: relative;
  min-height: calc(100dvh - var(--nav-height) - 24px);
  display: flex;
  align-items: flex-end;
  padding: clamp(40px, 8vw, 80px) 0 clamp(48px, 8vw, 88px);
  overflow: hidden;
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
  animation: soft-glow 10s var(--ease) infinite;
}

.hero-orb--a {
  width: min(70vw, 520px);
  height: min(70vw, 520px);
  background: rgba(0, 145, 255, 0.22);
  top: -8%;
  inset-inline-start: -8%;
}

.hero-orb--b {
  width: min(55vw, 420px);
  height: min(55vw, 420px);
  background: rgba(109, 124, 255, 0.12);
  bottom: 10%;
  inset-inline-end: -5%;
  animation-delay: -4s;
}

.hero-mesh {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 35%, rgba(0, 0, 0, 0.72) 78%, #000 100%),
    radial-gradient(ellipse 90% 60% at 70% 35%, rgba(0, 145, 255, 0.08), transparent 60%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 55% at 50% 40%, #000 20%, transparent 75%);
  opacity: 0.45;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.hero-brand-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.hero-brand-icon {
  width: clamp(48px, 7vw, 64px);
  height: clamp(48px, 7vw, 64px);
  border-radius: 16px;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--brand) 75%, #fff), var(--brand-strong));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 8px 28px rgba(0, 145, 255, 0.35);
  display: grid;
  place-items: center;
}

.hero-brand-icon svg {
  width: 55%;
  height: 55%;
}

.hero .brand-mark {
  background: linear-gradient(180deg, #fff 30%, rgba(235, 235, 245, 0.72));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .headline {
  margin-top: var(--space-4);
  max-width: 16ch;
}

.hero .subhead {
  margin-top: var(--space-4);
}

.hero-signal {
  position: absolute;
  z-index: 1;
  inset-inline-end: max(var(--gutter), calc((100% - var(--container)) / 2));
  bottom: clamp(72px, 14vw, 140px);
  width: min(42vw, 360px);
  aspect-ratio: 1;
  pointer-events: none;
  opacity: 0.9;
}

.hero-signal-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow:
    inset 0 0 40px rgba(0, 145, 255, 0.08),
    0 0 60px rgba(0, 145, 255, 0.06);
}

.hero-signal-ring::before,
.hero-signal-ring::after {
  content: "";
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  border: 1px solid rgba(0, 145, 255, 0.18);
}

.hero-signal-ring::after {
  inset: 36%;
  border-color: rgba(0, 145, 255, 0.35);
  background: radial-gradient(circle, rgba(0, 145, 255, 0.2), transparent 70%);
}

@media (max-width: 720px) {
  .hero-signal {
    width: min(58vw, 220px);
    bottom: auto;
    top: 12%;
    opacity: 0.55;
  }

  .hero {
    align-items: flex-end;
    min-height: calc(100dvh - 80px);
  }
}

/* ——— Feature strip (home) ——— */
.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.feature-item {
  padding: var(--space-5);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--brand) 16%, transparent);
  color: var(--brand-soft);
  margin-bottom: var(--space-4);
}

.feature-icon svg {
  width: 20px;
  height: 20px;
}

.feature-item h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}

.feature-item p {
  color: var(--label-secondary);
  font-size: 0.9375rem;
  line-height: 1.55;
}

@media (max-width: 800px) {
  .feature-strip {
    grid-template-columns: 1fr;
  }
}

/* ——— Plans (interactive cards) ——— */
.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  align-items: stretch;
}

.plan {
  padding: var(--space-6) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  text-align: start;
  height: 100%;
}

.plan--featured {
  border-color: color-mix(in srgb, var(--brand) 45%, var(--glass-border));
  box-shadow:
    var(--shadow-inset-top),
    0 12px 40px rgba(0, 145, 255, 0.12),
    0 8px 28px rgba(0, 0, 0, 0.35);
}

.plan-tag {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--brand) 18%, transparent);
  color: var(--brand-soft);
}

.plan h3 {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.plan-price {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.plan-price span {
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--label-secondary);
  letter-spacing: 0;
}

.plan ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.plan li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--label-secondary);
  font-size: 0.9375rem;
}

.plan li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 20%, transparent);
}

.plan .btn {
  width: 100%;
  margin-top: var(--space-2);
}

@media (max-width: 900px) {
  .plans {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-inline: auto;
  }
}

/* ——— Split / about ——— */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.split-visual {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xxl);
  position: relative;
  overflow: hidden;
  min-height: 280px;
}

.split-visual-inner {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(0, 145, 255, 0.25), transparent 50%),
    radial-gradient(circle at 75% 70%, rgba(109, 124, 255, 0.15), transparent 45%),
    linear-gradient(160deg, #121214, #000);
}

.split-visual-lines {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.split-visual-node {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 20px rgba(0, 145, 255, 0.55);
}

.split-visual-node:nth-child(2) { top: 28%; inset-inline-start: 22%; }
.split-visual-node:nth-child(3) { top: 48%; inset-inline-end: 26%; }
.split-visual-node:nth-child(4) { bottom: 24%; inset-inline-start: 48%; }

@media (max-width: 860px) {
  .split {
    grid-template-columns: 1fr;
  }

  .split-visual {
    order: -1;
  }
}

/* ——— Specs list ——— */
.specs {
  display: grid;
  gap: 1px;
  background: var(--separator-transparent);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.spec-row {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-4);
  padding: var(--space-5);
  background: color-mix(in srgb, var(--bg-secondary) 92%, transparent);
}

.spec-row dt {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.spec-row dd {
  color: var(--label-secondary);
}

@media (max-width: 640px) {
  .spec-row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

/* ——— Contact ——— */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-5);
  align-items: start;
}

.contact-card {
  padding: var(--space-6);
}

.contact-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-6);
}

.contact-meta h3 {
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}

.contact-meta p,
.contact-meta a {
  color: var(--label-secondary);
  font-size: 0.975rem;
}

.contact-meta a:hover {
  color: var(--brand-soft);
}

.form-grid {
  display: grid;
  gap: var(--space-4);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-note {
  margin-top: var(--space-3);
  font-size: 0.8125rem;
  color: var(--label-tertiary);
}

.form-success {
  display: none;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--ios-green) 14%, transparent);
  color: var(--ios-green);
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.form-success.is-shown {
  display: block;
}

@media (max-width: 800px) {
  .contact-grid,
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ——— Page hero (inner) ——— */
.page-hero {
  padding: clamp(48px, 9vw, 88px) 0 clamp(32px, 5vw, 48px);
}

.page-hero .headline {
  max-width: 18ch;
}

.page-hero .subhead {
  margin-top: var(--space-4);
}

/* ——— How it works ——— */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  counter-reset: step;
}

.step {
  padding: var(--space-5);
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: -0.02em;
  color: var(--brand-soft);
  display: block;
  margin-bottom: var(--space-4);
}

.step h3 {
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}

.step p {
  color: var(--label-secondary);
  font-size: 0.9375rem;
}

@media (max-width: 800px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

/* ——— Final CTA band ——— */
.cta-band {
  padding: var(--space-8) var(--space-6);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta-band .section-title {
  max-width: 18ch;
}

.cta-band .section-lead {
  text-align: center;
}

/* ——— Auth (ثبت‌نام / ورود) ——— */
.auth-page {
  padding: clamp(40px, 8vw, 72px) 0 clamp(56px, 10vw, 96px);
}

.auth-shell {
  width: min(100% - (var(--gutter) * 2), 440px);
  margin-inline: auto;
}

.auth-card {
  padding: var(--space-6);
}

.auth-card h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-2);
}

.auth-card > p {
  color: var(--label-secondary);
  font-size: 0.975rem;
  margin-bottom: var(--space-6);
}

.auth-switch {
  margin-top: var(--space-5);
  text-align: center;
  font-size: 0.9375rem;
  color: var(--label-secondary);
}

.auth-switch a {
  color: var(--brand-soft);
  font-weight: 600;
}

.auth-switch a:hover {
  text-decoration: underline;
}

.auth-hint {
  margin-top: var(--space-3);
  font-size: 0.8125rem;
  color: var(--label-tertiary);
}

.field-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--label-secondary);
  line-height: 1.45;
}

.field-check input {
  margin-top: 3px;
  accent-color: var(--brand);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.field-check a {
  color: var(--brand-soft);
}

.nav-link-quiet {
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 550;
  color: var(--label-secondary);
  transition: color var(--duration-fast) var(--ease);
}

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

@media (max-width: 860px) {
  .nav-actions .nav-link-quiet {
    display: none;
  }
}