/* ============================================================
   SOS 2026 — 20th Annual Conference of the Saudi Orthodontic Society
   Master Stylesheet
   Visual identity derived from the official conference flyer:
   deep navy, metallic gold, cyan highlights, orthodontic dot arcs,
   Riyadh skyline, elegant light trails.
   ============================================================ */

/* ---------- 1. Design tokens ---------- */
:root {
  /* Palette */
  --navy-950: #030918;
  --navy-900: #050e24;          /* page background */
  --navy-800: #081431;
  --navy-700: #0c1c42;          /* cards / panels */
  --navy-600: #122a5e;
  --navy-line: rgba(140, 170, 230, 0.14);

  --gold-100: #f7e7bd;
  --gold-300: #eccf92;
  --gold-400: #ddb873;
  --gold-500: #c9a15a;          /* metallic gold core */
  --gold-700: #8f6b2e;

  --cyan-300: #8adcf7;
  --cyan-400: #5bc8ee;          /* flyer cyan */
  --cyan-500: #35a9d6;

  --white: #f4f8ff;
  --muted: #9fb0ce;             /* secondary text */
  --muted-2: #7688a9;

  /* Gradients */
  --grad-gold: linear-gradient(105deg, #8f6b2e 0%, #c9a15a 22%, #f7e7bd 50%, #c9a15a 78%, #8f6b2e 100%);
  --grad-gold-soft: linear-gradient(105deg, #c9a15a, #f2d9a0 55%, #c9a15a);
  --grad-page: radial-gradient(1200px 700px at 80% -10%, rgba(18, 42, 94, .55), transparent 60%),
               radial-gradient(900px 600px at -10% 30%, rgba(53, 169, 214, .10), transparent 55%),
               var(--navy-900);

  /* Type */
  --font-display: "Outfit", "Segoe UI", system-ui, sans-serif;
  --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;

  /* Rhythm */
  --container: 1180px;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 24px 60px rgba(2, 6, 18, 0.55);
  --header-h: 78px;
  --ease: cubic-bezier(.22, .8, .3, 1);
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--grad-page);
  background-attachment: fixed;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--cyan-300); text-decoration: none; }
a:hover { color: var(--cyan-400); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.18;
  margin: 0 0 .5em;
  letter-spacing: .015em;
}

strong { color: var(--white); }

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.section { padding: 96px 0; position: relative; }
.section--tight { padding: 72px 0; }

::selection { background: rgba(201, 161, 90, .45); }

:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- 3. Reusable text treatments ---------- */

/* Eyebrow: small tracked label with orthodontic dot */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--gold-300);
  margin-bottom: 18px;
}
/*.eyebrow::before {
  content: "";
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--grad-gold-soft);
  box-shadow: 0 0 12px rgba(201, 161, 90, .8);
}*/

/* Gold gradient text (used for key numerals / theme lines) */
.text-gold {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.text-cyan { color: var(--cyan-400); }

/* Section heading block */
.sec-head { max-width: 760px; margin-bottom: 52px; }
.sec-head--center { margin-inline: auto; text-align: center; }
.sec-head--center .eyebrow { justify-content: center; }
.sec-head h2 {
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.sec-head p { color: var(--muted); margin: 0; }

/* Thin glowing gold rule */
.gold-rule {
  height: 1px; border: 0;
  margin: 26px 0;
  background: linear-gradient(90deg, transparent, var(--gold-500) 30%, var(--gold-100) 50%, var(--gold-500) 70%, transparent);
  opacity: .8;
  position: relative;
}
.sec-head--center .gold-rule { margin-inline: auto; width: 220px; }

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: .86rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: 16px 34px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease), color .35s;
  white-space: nowrap;
}
.btn-gold {
  background: var(--grad-gold);
  background-size: 200% 100%;
  color: #241a08;
  box-shadow: 0 10px 30px rgba(201, 161, 90, .28);
}
.btn-gold:hover {
  background-position: 100% 0;
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(201, 161, 90, .4);
  color: #241a08;
}
.btn-ghost {
  border-color: rgba(139, 220, 247, .4);
  color: var(--cyan-300);
  background: rgba(90, 200, 238, .05);
}
.btn-ghost:hover {
  border-color: var(--cyan-400);
  background: rgba(90, 200, 238, .12);
  transform: translateY(-2px);
  color: var(--cyan-300);
}
.btn-line {
  border-color: rgba(236, 207, 146, .45);
  color: var(--gold-300);
  background: transparent;
}
.btn-line:hover { background: rgba(201, 161, 90, .1); color: var(--gold-100); transform: translateY(-2px); }

/* ---------- 5. Header / navigation ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background .4s, box-shadow .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(4, 10, 28, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--navy-line);
  box-shadow: 0 14px 40px rgba(2, 6, 18, .45);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0px;
}
.brand { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.brand img { height: 46px; width: auto; }
.brand-text { line-height: 1.3; display: flex; flex-direction: column; white-space: nowrap; }
.brand-text .b1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: .92rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--white);
}
.brand-text .b2 {
  font-size: .66rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold-300);
}

.main-nav { display: flex; align-items: center; gap: 0; }
.main-nav a {
  font-family: var(--font-display);
  font-size: .76rem;
  font-weight: 500;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 10px 10px;
  border-radius: 8px;
  position: relative;
  transition: color .3s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 10px; right: 10px; bottom: 4px;
  height: 1px;
  background: var(--grad-gold-soft);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.main-nav a:hover { color: var(--white); }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--gold-300); }
.main-nav a.active::after { transform: scaleX(1); }

.nav-cta { margin-left: 8px; padding: 11px 20px; font-size: .74rem; white-space: nowrap; flex-shrink: 0; }

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--navy-line);
  border-radius: 10px;
  width: 46px; height: 44px;
  cursor: pointer;
  padding: 0;
  position: relative;
  z-index: 130;
}
.nav-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: var(--gold-300);
  margin: 4px auto;
  border-radius: 2px;
  transition: transform .35s var(--ease), opacity .3s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 1280px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    inset: 0;
    z-index: 120;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    background: rgba(4, 10, 28, .96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .4s, visibility .4s;
  }
  .main-nav.open { opacity: 1; visibility: visible; }
  .main-nav a { font-size: 1.05rem; padding: 12px 20px; }
  .nav-cta { margin: 18px 0 0; }
}

/* ---------- 6. Hero (home) ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 60px) 0 80px;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute; inset: 0; z-index: -2;
  background: url("../images/hero-20-years.jpg") center 30% / cover no-repeat;
  transform: scale(1.04);
  animation: heroDrift 24s ease-in-out infinite alternate;
}
@keyframes heroDrift {
  from { transform: scale(1.04) translateX(0); }
  to   { transform: scale(1.1) translateX(-1.5%); }
}
.hero-veil {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, rgba(4, 10, 28, .92) 0%, rgba(4, 10, 28, .72) 42%, rgba(4, 10, 28, .25) 75%, rgba(4, 10, 28, .55) 100%),
    linear-gradient(0deg, var(--navy-900) 2%, transparent 30%),
    linear-gradient(180deg, rgba(4, 10, 28, .65) 0%, transparent 26%);
}
.hero-inner { max-width: 720px; }
.hero-org {
  font-family: var(--font-display);
  letter-spacing: .3em;
  text-transform: uppercase;
  font-size: .8rem;
  color: var(--cyan-300);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.hero-org::before {
  content: "";
  width: 44px; height: 1px;
  background: linear-gradient(90deg, var(--gold-500), transparent);
}
.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.6rem);
  font-weight: 250;
  text-transform: uppercase;
  letter-spacing: .045em;
  margin-bottom: 10px;
}
.hero h1 .thin { font-weight: 200; color: var(--muted); font-size: .55em; display: block; letter-spacing: .22em; margin-bottom: 14px; }
.hero-theme {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan-300);
  margin: 18px 0 6px;
}
.hero-sub {
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .85rem;
  margin-bottom: 30px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin: 26px 0 38px;
  padding: 20px 26px;
  border: 1px solid var(--navy-line);
  border-radius: var(--radius);
  background: rgba(6, 14, 36, .55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  width: fit-content;
}
.hero-meta .m { display: flex; flex-direction: column; gap: 2px; }
.hero-meta .m .k {
  font-size: .68rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--gold-300);
  font-family: var(--font-display);
}
.hero-meta .m .v { font-family: var(--font-display); font-weight: 400; font-size: 1.05rem; letter-spacing: .04em; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 16px; }

/* Countdown */
.countdown { display: flex; gap: 14px; margin-top: 44px; flex-wrap: wrap; }
.countdown .cd {
  min-width: 86px;
  text-align: center;
  padding: 14px 10px 12px;
  border: 1px solid rgba(236, 207, 146, .22);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(12, 28, 66, .6), rgba(6, 14, 36, .6));
}
.countdown .cd b {
  display: block;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.9rem;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.countdown .cd span {
  font-size: .64rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 7. Inner page hero ---------- */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 90px) 0 74px;
  overflow: hidden;
  border-bottom: 1px solid var(--navy-line);
  background:
    radial-gradient(700px 340px at 85% 20%, rgba(53, 169, 214, .14), transparent 65%),
    radial-gradient(600px 300px at 10% 90%, rgba(201, 161, 90, .1), transparent 60%),
    var(--navy-950);
}
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  text-transform: uppercase;
  letter-spacing: .06em;
  max-width: 800px;
}
.page-hero .lede { color: var(--muted); max-width: 680px; margin: 0; }
.crumbs {
  font-family: var(--font-display);
  font-size: .74rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 26px;
}
.crumbs a { color: var(--gold-300); }
.crumbs span { margin: 0 10px; color: var(--muted-2); }

/* Decorative dot arc (orthodontic aligner motif from the flyer) */
.dot-arc {
  position: absolute;
  right: -140px;
  top: 50%;
  width: 460px; height: 460px;
  transform: translateY(-50%);
  opacity: .8;
  pointer-events: none;
  animation: arcSpin 60s linear infinite;
}
@keyframes arcSpin { to { transform: translateY(-50%) rotate(360deg); } }

/* ---------- 8. Cards ---------- */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1000px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  position: relative;
  padding: 34px 30px;
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(14, 30, 70, .75), rgba(6, 13, 32, .85));
  border: 1px solid var(--navy-line);
  transition: transform .45s var(--ease), border-color .45s, box-shadow .45s;
  overflow: hidden;
}
.card::before {
  /* gold hairline that lights up on hover */
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%; height: 1px;
  background: var(--grad-gold-soft);
  opacity: 0;
  transition: opacity .45s;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(236, 207, 146, .35);
  box-shadow: var(--shadow);
}
.card:hover::before { opacity: 1; }
.card h3 {
  font-size: 1.12rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.card p { color: var(--muted); font-size: .95rem; margin: 0; }

/* Icon chip inside cards */
.chip {
  width: 54px; height: 54px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  background: radial-gradient(circle at 30% 25%, rgba(138, 220, 247, .22), rgba(12, 28, 66, .8));
  border: 1px solid rgba(138, 220, 247, .25);
  color: var(--cyan-300);
}
.chip svg { width: 26px; height: 26px; }

/* ---------- 9. Speaker cards ---------- */
.speaker-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 1080px) { .speaker-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 780px)  { .speaker-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .speaker-grid { grid-template-columns: 1fr; } }

.speaker {
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(14, 30, 70, .7), rgba(6, 13, 32, .9));
  border: 1px solid var(--navy-line);
  transition: transform .45s var(--ease), border-color .45s, box-shadow .45s;
}
.speaker:hover {
  transform: translateY(-6px);
  border-color: rgba(236, 207, 146, .4);
  box-shadow: var(--shadow);
}
.speaker .ph {
  aspect-ratio: 1 / 1.02;
  position: relative;
  display: grid;
  place-items: center;
  background:
    radial-gradient(240px 200px at 50% 20%, rgba(53, 169, 214, .2), transparent 70%),
    linear-gradient(180deg, var(--navy-700), var(--navy-900));
  border-bottom: 1px solid var(--navy-line);
}
.speaker .ph svg { width: 84px; height: 84px; color: rgba(159, 176, 206, .5); }
.speaker .ph .ring {
  position: absolute;
  inset: 14px;
  border-radius: 14px;
  border: 1px dashed rgba(236, 207, 146, .2);
  pointer-events: none;
}
.speaker .info { padding: 20px 20px 24px; }
.speaker .info h3 { font-size: 1.02rem; font-weight: 500; letter-spacing: .04em; margin-bottom: 4px; }
.speaker .info .country {
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold-300);
  font-family: var(--font-display);
  display: block;
  margin-bottom: 8px;
}
.speaker .info p { color: var(--muted); font-size: .86rem; margin: 0 0 14px; }
.speaker .info .profile-link {
  font-family: var(--font-display);
  font-size: .74rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan-300);
}

/* ---------- 10. Agenda / program ---------- */
.tabs { display: flex; gap: 12px; margin-bottom: 40px; flex-wrap: wrap; }
.tab-btn {
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  padding: 14px 30px;
  border-radius: 999px;
  border: 1px solid var(--navy-line);
  background: rgba(8, 20, 49, .6);
  color: var(--muted);
  cursor: pointer;
  transition: all .35s var(--ease);
}
.tab-btn.active {
  background: var(--grad-gold);
  color: #241a08;
  border-color: transparent;
  box-shadow: 0 10px 26px rgba(201, 161, 90, .3);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp .5s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.agenda { border-left: 1px solid rgba(236, 207, 146, .25); margin-left: 8px; }
.agenda-item {
  position: relative;
  padding: 0 0 34px 34px;
}
.agenda-item::before {
  content: "";
  position: absolute;
  left: -6px; top: 8px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--grad-gold-soft);
  box-shadow: 0 0 14px rgba(201, 161, 90, .7);
}
.agenda-item .time {
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .24em;
  color: var(--cyan-300);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.agenda-item h3 { font-size: 1.08rem; font-weight: 500; letter-spacing: .04em; margin-bottom: 4px; }
.agenda-item p { color: var(--muted); font-size: .9rem; margin: 0; }
.agenda-item.break h3 { color: var(--gold-300); }
.agenda-item.break::before { background: var(--cyan-400); box-shadow: 0 0 12px rgba(91, 200, 238, .7); }

/* ---------- 11. Tables (registration fees) ---------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--navy-line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(12, 28, 66, .5), rgba(5, 12, 30, .7));
}
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { padding: 18px 22px; text-align: left; }
thead th {
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-300);
  background: rgba(4, 10, 26, .7);
  border-bottom: 1px solid rgba(236, 207, 146, .3);
  white-space: nowrap;
}
tbody td { border-bottom: 1px solid var(--navy-line); color: var(--muted); font-size: .95rem; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: rgba(53, 169, 214, .05); color: var(--white); }
tbody td:first-child { color: var(--white); font-weight: 600; }
.note {
  font-size: .85rem;
  color: var(--muted-2);
  margin-top: 16px;
}
.note b { color: var(--gold-300); font-weight: 600; }

/* ---------- 12. Sponsorship tiers ---------- */
.tier {
  text-align: center;
  padding: 44px 30px 40px;
}
.tier .tier-name {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.5rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.tier .tier-tag {
  font-size: .72rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 24px;
  font-family: var(--font-display);
}
.tier ul { list-style: none; padding: 0; margin: 0 0 28px; text-align: left; }
.tier ul li {
  padding: 11px 0 11px 30px;
  border-bottom: 1px solid var(--navy-line);
  color: var(--muted);
  font-size: .92rem;
  position: relative;
}
.tier ul li::before {
  content: "";
  position: absolute;
  left: 4px; top: 19px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 8px rgba(91, 200, 238, .7);
}
.tier ul li:last-child { border-bottom: 0; }
.tier--diamond { border-color: rgba(138, 220, 247, .45); }
.tier--diamond .tier-name { color: var(--cyan-300); }
.tier--platinum .tier-name { color: #dfe7f5; }
.tier--gold .tier-name,
.tier--gold-strong .tier-name {
  background: var(--grad-gold);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tier--silver .tier-name { color: var(--muted); }

/* Logo placeholder grid */
.logo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 900px) { .logo-grid { grid-template-columns: repeat(2, 1fr); } }
.logo-slot {
  height: 110px;
  border: 1px dashed rgba(159, 176, 206, .3);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--muted-2);
  font-family: var(--font-display);
  font-size: .72rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  background: rgba(8, 20, 49, .35);
  transition: border-color .35s;
}
.logo-slot:hover { border-color: rgba(236, 207, 146, .5); }

/* ---------- 13. Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 680px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold-300);
}
.field input, .field select, .field textarea {
  background: rgba(5, 12, 30, .8);
  border: 1px solid var(--navy-line);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-body);
  font-size: .96rem;
  padding: 15px 18px;
  transition: border-color .3s, box-shadow .3s;
}
.field textarea { resize: vertical; min-height: 150px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--cyan-400);
  box-shadow: 0 0 0 3px rgba(91, 200, 238, .15);
}
.form-msg { margin-top: 18px; color: var(--cyan-300); font-size: .92rem; min-height: 1.4em; }

/* ---------- 14. Split layouts / feature panels ---------- */
.split {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 940px) { .split { grid-template-columns: 1fr; gap: 40px; } }
.split .visual {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(236, 207, 146, .25);
  box-shadow: var(--shadow);
  position: relative;
}
.split .visual::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04);
  pointer-events: none;
}

/* Stat band */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 54px;
}
@media (max-width: 860px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  text-align: center;
  padding: 30px 16px;
  border: 1px solid var(--navy-line);
  border-radius: var(--radius);
  background: rgba(8, 20, 49, .45);
}
.stat b {
  display: block;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: 2.5rem;
  background: var(--grad-gold);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span {
  font-size: .7rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--muted);
  font-family: var(--font-display);
}

/* ---------- 15. CTA band ---------- */
.cta-band {
  position: relative;
  border-radius: calc(var(--radius) + 6px);
  padding: 72px 56px;
  overflow: hidden;
  text-align: center;
  background:
    radial-gradient(600px 280px at 50% -30%, rgba(201, 161, 90, .22), transparent 70%),
    radial-gradient(500px 300px at 90% 120%, rgba(53, 169, 214, .16), transparent 65%),
    linear-gradient(165deg, var(--navy-700), var(--navy-950));
  border: 1px solid rgba(236, 207, 146, .3);
}
.cta-band h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  text-transform: uppercase;
  letter-spacing: .08em;
  max-width: 720px;
  margin-inline: auto;
}
.cta-band p { color: var(--muted); max-width: 560px; margin: 0 auto 34px; }
.cta-band .hero-ctas { justify-content: center; }
@media (max-width: 640px) { .cta-band { padding: 52px 26px; } }

/* ---------- 16. Footer ---------- */
.site-footer {
  margin-top: 60px;
  border-top: 1px solid var(--navy-line);
  background: linear-gradient(180deg, rgba(4, 10, 26, .4), var(--navy-950));
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 54px;
}
@media (max-width: 980px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--gold-300);
  margin-bottom: 20px;
}
.site-footer p, .site-footer a { color: var(--muted); font-size: .92rem; }
.site-footer a:hover { color: var(--cyan-300); }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-brand img { height: 52px; margin-bottom: 18px; }
.socials { display: flex; flex-wrap: wrap; gap: 10px; }
.socials a {
  width: 42px; height: 42px;
  border: 1px solid var(--navy-line);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--muted);
  transition: all .35s var(--ease);
}
.socials a:hover {
  color: var(--gold-300);
  border-color: rgba(236, 207, 146, .5);
  transform: translateY(-3px);
}
.socials svg { width: 17px; height: 17px; }
.footer-bottom {
  border-top: 1px solid var(--navy-line);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: .82rem;
  color: var(--muted-2);
}
.footer-bottom a { color: var(--gold-300); }

/* ---------- 17. Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .12s; }
.reveal[data-delay="2"] { transition-delay: .24s; }
.reveal[data-delay="3"] { transition-delay: .36s; }

/* ---------- 18. Utility ---------- */
.center { text-align: center; }
.mt-40 { margin-top: 40px; }
.mt-60 { margin-top: 60px; }
.placeholder-tag {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--cyan-300);
  border: 1px dashed rgba(91, 200, 238, .4);
  border-radius: 8px;
  padding: 3px 10px;
  background: rgba(91, 200, 238, .06);
}
.back-to-top {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 90;
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(236, 207, 146, .4);
  background: rgba(6, 14, 36, .85);
  color: var(--gold-300);
  display: grid;
  place-items: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all .4s var(--ease);
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-4px); }

/* ---------- 12. Site-wide motion background (flyer elements) ---------- */
.bg-motion {
  position: fixed;
  inset: 0;
  z-index: -3;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(1100px 700px at 85% -10%, rgba(23, 48, 100, .55), transparent 60%),
    radial-gradient(900px 640px at -10% 100%, rgba(12, 32, 72, .5), transparent 60%),
    var(--navy-900, #050e24);
}

/* soft drifting glow orbs */
.bg-motion .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .5;
  animation: orbDrift 26s ease-in-out infinite alternate;
}
.bg-motion .orb.o1 {
  width: 46vw; height: 46vw; right: -12vw; top: -14vw;
  background: radial-gradient(circle, rgba(201, 161, 90, .16), transparent 65%);
}
.bg-motion .orb.o2 {
  width: 38vw; height: 38vw; left: -14vw; bottom: -12vw;
  background: radial-gradient(circle, rgba(91, 200, 238, .10), transparent 65%);
  animation-duration: 32s; animation-delay: -8s;
}
.bg-motion .orb.o3 {
  width: 24vw; height: 24vw; left: 32vw; top: 34vh;
  background: radial-gradient(circle, rgba(201, 161, 90, .08), transparent 65%);
  animation-duration: 38s; animation-delay: -16s;
}
@keyframes orbDrift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(-4vw, 3vh, 0) scale(1.08); }
  100% { transform: translate3d(3vw, -3vh, 0) scale(.96); }
}

/* the flyer's giant golden ring — slow rotation */
.bg-motion .ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid transparent;
  background:
    linear-gradient(var(--navy-900, #050e24), var(--navy-900, #050e24)) padding-box,
    conic-gradient(from 210deg, transparent 0deg, rgba(201, 161, 90, .0) 40deg,
      rgba(201, 161, 90, .55) 120deg, rgba(247, 231, 189, .9) 160deg,
      rgba(201, 161, 90, .5) 210deg, transparent 300deg) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
          mask-composite: exclude;
  opacity: .8;
  animation: ringSpin 90s linear infinite;
}
.bg-motion .ring.r1 { width: 72vmax; height: 72vmax; right: -26vmax; top: -20vmax; }
.bg-motion .ring.r2 {
  width: 46vmax; height: 46vmax; left: -18vmax; bottom: -22vmax;
  animation-duration: 120s; animation-direction: reverse; opacity: .5;
}
@keyframes ringSpin {
  to { transform: rotate(360deg); }
}

/* orthodontic aligner dot arcs — rotating dotted circles */
.bg-motion .dots {
  position: absolute;
  animation: ringSpin 140s linear infinite;
  opacity: .55;
}
.bg-motion .dots.d1 { width: 60vmax; height: 60vmax; right: -20vmax; top: -14vmax; }
.bg-motion .dots.d2 {
  width: 34vmax; height: 34vmax; left: -12vmax; bottom: -14vmax;
  animation-duration: 170s; animation-direction: reverse; opacity: .35;
}
.bg-motion .dots svg { width: 100%; height: 100%; display: block; }

/* floating gold / cyan particles */
.bg-motion .p {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(247, 231, 189, .95), rgba(201, 161, 90, .35) 60%, transparent 70%);
  animation: pFloat var(--pd, 18s) ease-in-out infinite alternate,
             pTwinkle calc(var(--pd, 18s) / 3) ease-in-out infinite;
  opacity: .5;
}
.bg-motion .p.c {
  background: radial-gradient(circle, rgba(191, 233, 250, .95), rgba(91, 200, 238, .35) 60%, transparent 70%);
}
@keyframes pFloat {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(var(--px, 3vw), var(--py, -6vh), 0); }
}
@keyframes pTwinkle {
  0%, 100% { opacity: .25; }
  50%      { opacity: .75; }
}

/* content sits above */
.site-header, main, footer { position: relative; z-index: 1; }

@media (prefers-reduced-motion: reduce) {
  .bg-motion .orb, .bg-motion .ring, .bg-motion .dots, .bg-motion .p { animation: none; }
}
@media (max-width: 720px) {
  .bg-motion .orb { filter: blur(40px); }
  .bg-motion .p { display: none; }
  .bg-motion .p:nth-child(-n+14) { display: block; }
}


.welcome-card{
    display:flex;
    gap:50px;
    align-items:center;
}


.message-content{
    flex:1;
}


.president-box{
    flex:1;
    max-width:300px;
    text-align:center;
    padding-left:35px;
    border-left:1px solid rgba(255,255,255,.15);
}


.doctor-img{

    width:260px;
    height:360px;

    margin:auto;
    margin-bottom:20px;

    display:flex;
    align-items:flex-end;
    justify-content:center;

    background:transparent;

}


.doctor-img img{

    width:100%;
    height:100%;

    object-fit:contain;

    display:block;

}


.president-box h3{

    color:white;
    font-size:18px;

    margin-bottom:12px;

}


.president-box span{

    color:var(--gold-300);

    font-size:.75rem;

    letter-spacing:.12em;

    text-transform:uppercase;

}


@media(max-width:900px){

.welcome-card{
    flex-direction:column;
}

.president-box{

    border-left:none;
    border-top:1px solid rgba(255,255,255,.15);

    width:100%;

}

}