/* ==========================================================================
   Negin Dental Clinic — global styles
   Palette extracted from the original site (negindentalclinic.ir)
   ========================================================================== */

:root {
  --brand: #3b559a;          /* primary blue (site accent) */
  --brand-dark: #2c4380;
  --cyan: #29abe2;           /* logo cyan (accents/borders) */
  --cyan-soft: #6ec9ef;
  --cyan-deep: #1c7ba6;      /* darker blue — used for the light-blue buttons */
  --en-accent: #22356b;      /* darker blue for Latin/English captions & titles */

  --text: #5c6873;           /* body copy */
  --muted: #818695;          /* secondary copy */
  --heading: #333232;        /* dark headings */

  --bg: #ffffff;
  --bg-tint: #eff6fa;        /* pale blue section background */
  --bg-tint-2: #f7fcff;
  --bg-grey: #f7f7f7;
  --border: #e6ebf1;

  --radius: 14px;
  --radius-lg: 28px;
  --shadow-sm: 0 6px 18px rgba(43, 67, 128, 0.08);
  --shadow-md: 0 18px 45px rgba(43, 67, 128, 0.12);

  --container: 1180px;
  --header-h: 92px;

  --font-fa: var(--font-vazirmatn), "Vazirmatn", Tahoma, sans-serif;
  --font-en: var(--font-cinzel), "Cinzel", "Times New Roman", serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-fa);
  font-size: 16px;
  line-height: 2;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--heading);
  line-height: 1.6;
  margin: 0 0 0.6em;
  font-weight: 700;
}

p {
  margin: 0 0 1.2em;
  text-align: justify;
  text-align-last: right;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--brand);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* form controls don't inherit the page font by default in most browsers */
button,
input,
textarea,
select {
  font-family: inherit;
}

/* Latin type — the site brand language for English captions/titles */
.en,
.en-title {
  font-family: var(--font-en);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 90px 0;
}

.section--tint {
  background: var(--bg-tint);
}

.section--grey {
  background: var(--bg-grey);
}

.grid {
  display: grid;
  gap: 30px;
}

@media (min-width: 720px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- section heading (bilingual, like the original) ---------- */
.sec-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 54px;
}

.sec-head__en {
  display: block;
  font-family: var(--font-en);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--en-accent);
  font-size: 15px;
  margin-bottom: 10px;
}

.sec-head__fa {
  font-size: 30px;
  color: var(--heading);
  margin: 0 0 14px;
}

.sec-head__lead {
  color: var(--muted);
  margin: 0;
  text-align: center;
  text-align-last: center;
}

.sec-head::after {
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  border-radius: 3px;
  background: var(--brand);
  margin: 20px auto 0;
}

/* ---------- buttons ---------- */
.btn {
  --_bg: var(--brand);
  --_fg: #fff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 999px;
  background: var(--_bg);
  color: var(--_fg);
  font-weight: 700;
  font-size: 15px;
  border: 2px solid var(--_bg);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn:hover {
  color: var(--_fg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn--cyan {
  --_bg: var(--cyan-deep);
}

.btn--ghost {
  --_bg: transparent;
  --_fg: var(--brand);
  border-color: var(--brand);
}

.btn--ghost:hover {
  --_fg: #fff;
  background: var(--brand);
}

/* ---------- cards ---------- */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 28px;
  text-align: center;
  height: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.card__icon {
  width: 96px;
  height: 96px;
  margin: 0 auto 14px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--bg-tint);
}

.card__icon img {
  width: 60px;
  height: 60px;
}

.card__en {
  display: block;
  font-family: var(--font-en);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--en-accent);
  font-size: 13px;
  line-height: 1.4;
}

.card__title {
  font-size: 20px;
  margin: 2px 0 12px;
}

.card__text {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
  text-align: justify;
  text-align-last: right;
}

/* ---------- utilities ---------- */
.text-center {
  text-align: center;
}

/* keep numeric strings (phone numbers, etc.) in left-to-right order inside RTL text */
.ltr,
[dir="ltr"] {
  unicode-bidi: isolate;
}

.mt-0 {
  margin-top: 0;
}

.lead {
  font-size: 18px;
  color: var(--muted);
}

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

@media (max-width: 720px) {
  .section {
    padding: 60px 0;
  }
  .sec-head__fa {
    font-size: 24px;
  }
}

/* ---------- scroll-in sequence animation (see components/Reveal.js) ---------- */
.reveal {
  opacity: 0;
  transition: opacity 0.7s cubic-bezier(0.16, 0.8, 0.24, 1) var(--reveal-delay, 0ms),
    transform 0.7s cubic-bezier(0.16, 0.8, 0.24, 1) var(--reveal-delay, 0ms);
}

.reveal--up {
  transform: translateY(30px);
}

.reveal--down {
  transform: translateY(-30px);
}

.reveal--left {
  transform: translateX(-36px);
}

.reveal--right {
  transform: translateX(36px);
}

.reveal--scale {
  transform: scale(0.92);
}

.reveal--in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}