/* =========================================================
   رویاپرداز ماد — Design tokens & base reset
   ========================================================= */

:root {
  /* Color — red & white brand, warm ink instead of pure black */
  --paper: #FFFFFF;
  --paper-dim: #FBF6F6;      /* faint rose-white for section banding */
  --ink: #1C1614;
  --ink-soft: #6B5C5A;
  --red: #C8102E;            /* primary */
  --red-deep: #7A0C1D;       /* pressed / gradient depth */
  --red-bright: #E4173A;     /* hover highlight */
  --hairline: #EBD9DB;       /* soft rose divider */
  --hairline-strong: #E3B7BD;

  /* Type scale */
  --font-body: "Vazirmatn", "Tahoma", sans-serif;
  --fs-display: clamp(2.2rem, 1.4rem + 3.6vw, 4rem);
  --fs-h2: clamp(1.6rem, 1.2rem + 1.8vw, 2.4rem);
  --fs-h3: clamp(1.15rem, 1rem + 0.6vw, 1.4rem);
  --fs-lead: clamp(1.05rem, 1rem + 0.3vw, 1.2rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.8rem;

  /* Layout */
  --maxw: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 6px;
  --header-h: 76px;

  /* Motion */
  --ease: cubic-bezier(.4, 0, .2, 1);
  --dur-fast: 180ms;
  --dur-med: 420ms;
}

@media (prefers-reduced-motion: reduce) {
  :root { --dur-fast: 0ms; --dur-med: 0ms; }
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@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;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--ink);
  background: var(--paper);
  direction: rtl;
  text-align: right;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

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

ul { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, p { margin: 0; }

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

input, textarea { direction: rtl; }

button { cursor: pointer; background: none; border: none; }

:focus-visible {
  outline: 2.5px solid var(--red);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(3.5rem, 4vw + 2rem, 6.5rem);
}

.section--dim { background: var(--paper-dim); }

.section-head {
  max-width: 640px;
  margin-bottom: clamp(2rem, 3vw, 3.25rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--red);
  margin-bottom: 0.9rem;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--red);
  display: inline-block;
}

.section-head h2 {
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.section-head p {
  margin-top: 0.9rem;
  color: var(--ink-soft);
  font-size: var(--fs-lead);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Reveal-on-scroll utility, toggled via JS + IntersectionObserver */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--red);
  color: var(--paper);
}
.btn--primary:hover { background: var(--red-deep); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--hairline-strong);
}
.btn--ghost:hover {
  border-color: var(--red);
  color: var(--red);
}

.btn--block { width: 100%; justify-content: center; }