/* PM3 Panoramas — Design System PM3 (pm3-brand-pm3).
   Static site without a build step: when this file changes, rename it
   (styles-YYYY-MM.css) and update the reference in index.html. */

@font-face {
  font-family: "Inter Tight";
  src: url("fonts/inter-tight-latin.woff2") format("woff2");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Rubik";
  src: url("fonts/rubik-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --color-deep-purple: #452e78;
  --color-royal-purple: #6645b1;
  --color-black: #000;
  --color-white: #fff;
  --color-gray-fog: #b9b5c1;
  --color-yellow-glow: #ffb12a;
  --color-surface-muted: #f5f4f8;

  --gradient-brand: linear-gradient(135deg, #452e78, #6645b1);

  --font-heading: "Inter Tight", "Arial Narrow", Arial, sans-serif;
  --font-body: "Rubik", Arial, sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --space-1: 4px;
  --space-2: 8px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;

  --container: 1200px;
}

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

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-black);
  background: var(--color-white);
}

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

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-heading);
  color: var(--color-deep-purple);
}

p {
  margin: 0;
}

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

a {
  color: var(--color-royal-purple);
}

:focus-visible {
  outline: 2px solid var(--color-royal-purple);
  outline-offset: 2px;
}

.on-dark :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--color-yellow-glow);
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--color-yellow-glow);
  color: var(--color-black);
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: var(--space-2);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-12);
  }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: var(--space-4) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;
}

.btn-primary {
  background: var(--color-royal-purple);
  color: var(--color-white);
}

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

.btn-accent {
  background: var(--color-yellow-glow);
  color: var(--color-black);
}

.btn-accent:hover {
  background: #e99d1e;
}

/* ---------- Header ---------- */

.site-header {
  border-top: 8px solid var(--color-royal-purple);
  background: var(--color-white);
  box-shadow: 0 8px 24px rgba(69, 46, 120, 0.1);
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 80px;
}

.logo {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

/* Logo on light background: Deep One Purple. */
.logo img {
  filter: brightness(0) saturate(100%) invert(18%) sepia(50%) saturate(800%)
    hue-rotate(230deg) brightness(80%);
}

.nav-toggle {
  display: none;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--color-royal-purple);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-royal-purple);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
}

.js .nav-toggle {
  display: inline-flex;
}

.site-nav {
  flex-basis: 100%;
  padding-bottom: var(--space-4);
}

.js .site-nav {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  z-index: 50;
  padding: var(--space-4) var(--space-6) var(--space-6);
  background: var(--color-white);
  box-shadow: 0 16px 24px rgba(69, 46, 120, 0.12);
}

.js .site-nav.is-open {
  display: block;
}

.site-nav ul {
  display: flex;
  flex-direction: column;
}

.site-nav a {
  display: flex;
  align-items: center;
  min-height: 48px;
  color: var(--color-deep-purple);
  font-family: var(--font-heading);
  font-weight: 600;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-royal-purple);
  text-decoration: underline;
}

.site-header {
  position: relative;
}

@media (min-width: 960px) {
  .js .nav-toggle {
    display: none;
  }

  .site-nav,
  .js .site-nav {
    position: static;
    display: block;
    flex-basis: auto;
    padding: 0;
    background: transparent;
    box-shadow: none;
  }

  .site-nav ul {
    flex-direction: row;
    gap: var(--space-8);
  }
}

/* ---------- Hero ---------- */

.hero {
  background: var(--gradient-brand);
  color: var(--color-white);
  padding-block: var(--space-16);
}

.hero-grid {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

.hero h1 {
  margin-top: var(--space-6);
  color: var(--color-white);
  font-size: clamp(2.5rem, 7vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.hero h1 span {
  display: block;
  color: var(--color-yellow-glow);
}

.hero-lead {
  margin-top: var(--space-6);
  max-width: 32em;
  font-size: 1.125rem;
  color: var(--color-gray-fog);
}

.hero .btn {
  margin-top: var(--space-8);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
}

.pill::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-yellow-glow);
}

.hero-media {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-white);
}

@media (min-width: 960px) {
  .hero {
    padding-block: var(--space-24);
  }

  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

/* ---------- Section heading ---------- */

.section {
  padding-block: var(--space-16);
}

.section-head {
  max-width: 40em;
  margin-bottom: var(--space-12);
}

.section-head h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.1;
}

.section-head p {
  margin-top: var(--space-4);
  font-size: 1.125rem;
  color: var(--color-deep-purple);
}

@media (min-width: 960px) {
  .section {
    padding-block: var(--space-24);
  }
}

/* ---------- Study cards ---------- */

.studies {
  background: var(--color-surface-muted);
}

.study-list {
  display: grid;
  gap: var(--space-8);
}

.study {
  display: grid;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: 0 4px 16px rgba(69, 46, 120, 0.08);
}

.study-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-8) var(--space-6);
}

.study h3 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.study-desc {
  margin-top: var(--space-4);
}

.study-stats {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.study-stats li {
  position: relative;
  padding-left: var(--space-6);
}

.study-stats li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-royal-purple);
}

.study-stats strong {
  color: var(--color-deep-purple);
  font-weight: 600;
}

.study-partner {
  margin-top: var(--space-6);
}

.study .btn {
  margin-top: var(--space-8);
}

.study-media {
  margin: 0;
  background: var(--color-black);
}

.study-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 960px) {
  .study {
    grid-template-columns: 1fr 1fr;
  }

  .study-body {
    justify-content: center;
    padding: var(--space-12);
  }

  .study h3 {
    font-size: 2rem;
  }
}

/* ---------- Methodology ---------- */

.method-grid {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-6);
  counter-reset: step;
}

.step {
  position: relative;
  padding: var(--space-6) var(--space-6) var(--space-6) 88px;
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
  counter-increment: step;
}

.step::before {
  content: counter(step);
  position: absolute;
  left: var(--space-6);
  top: var(--space-6);
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-royal-purple);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
}

.step h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.step p {
  margin-top: var(--space-2);
}

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

.method-art img {
  width: 100%;
  border-radius: var(--radius-lg);
}

@media (min-width: 960px) {
  .method-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-16);
  }
}

/* ---------- FAQ ---------- */

.faq {
  background: var(--color-surface-muted);
}

.faq-list {
  display: grid;
  gap: var(--space-4);
  max-width: 800px;
}

.faq details {
  border-radius: var(--radius-md);
  background: var(--color-white);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 64px;
  padding: var(--space-4) var(--space-6);
  color: var(--color-deep-purple);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  flex: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-royal-purple);
}

.faq details[open] summary::after {
  content: "\2212";
}

.faq details p {
  padding: 0 var(--space-6) var(--space-6);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-deep-purple);
  color: var(--color-white);
  padding-block: var(--space-16);
}

.site-footer a {
  color: var(--color-white);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-top {
  display: grid;
  gap: var(--space-6);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(185, 181, 193, 0.3);
}

.footer-logo img {
  filter: brightness(0) invert(1);
}

.social {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.social a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
}

.footer-cols {
  display: grid;
  gap: var(--space-8);
  padding-block: var(--space-12);
}

.footer-cols h2 {
  margin-bottom: var(--space-2);
  color: var(--color-yellow-glow);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-cols li a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  font-size: 0.875rem;
  color: var(--color-gray-fog);
}

.footer-cols li a:hover {
  color: var(--color-white);
}

.footer-cols .col-block + .col-block {
  margin-top: var(--space-8);
}

@media (min-width: 640px) {
  .footer-cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .footer-top {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .footer-cols {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

/* ---------- Study access form (HubSpot) ---------- */

.form-dialog {
  width: min(480px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  padding: 0;
  border: 0;
  border-radius: var(--radius-lg);
  background: var(--color-white);
  color: var(--color-black);
  overflow: auto;
}

.form-dialog::backdrop {
  background: rgba(0, 0, 0, 0.65);
}

.form-dialog-inner {
  position: relative;
  padding: var(--space-8) var(--space-6) var(--space-6);
}

.form-dialog h2 {
  padding-right: var(--space-8);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.form-dialog-close {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-deep-purple);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

.form-dialog-close:hover {
  background: var(--color-surface-muted);
}

.form-dialog-status {
  margin-top: var(--space-6);
  color: var(--color-deep-purple);
}

.form-dialog-status[hidden] {
  display: none;
}

#hubspot-form {
  margin-top: var(--space-4);
}

/* ---------- Thank-you page ---------- */

.thanks {
  background: var(--color-surface-muted);
  padding-block: var(--space-16);
}

.thanks-card {
  max-width: 800px;
  margin-inline: auto;
  padding: var(--space-12) var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: 0 4px 16px rgba(69, 46, 120, 0.08);
  text-align: center;
}

.thanks-check {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-6);
  border-radius: 50%;
  background: var(--gradient-brand);
}

.thanks-check::after {
  content: "";
  width: 14px;
  height: 28px;
  margin-top: -4px;
  border: solid var(--color-white);
  border-width: 0 4px 4px 0;
  transform: rotate(45deg);
}

.thanks h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
}

.thanks-card p {
  margin-top: var(--space-4);
  font-size: 1.125rem;
}

.thanks-card .btn {
  margin-top: var(--space-8);
}

.thanks-card .thanks-hint {
  margin-top: var(--space-8);
  font-size: 1rem;
  color: var(--color-royal-purple);
}

.doc-list {
  display: grid;
  gap: var(--space-4);
  max-width: 800px;
}

.doc-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 64px;
  padding: var(--space-4) var(--space-6);
  border: 1px solid var(--color-gray-fog);
  border-radius: var(--radius-md);
  color: var(--color-deep-purple);
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.doc-link:hover {
  border-color: var(--color-royal-purple);
  box-shadow: 0 4px 16px rgba(69, 46, 120, 0.12);
}

.doc-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
}

.doc-meta {
  flex: none;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background: rgba(102, 69, 177, 0.1);
  color: var(--color-royal-purple);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
}

.about {
  padding-block: var(--space-16);
  background: var(--color-black);
  background-image: linear-gradient(180deg, #000 55%, var(--color-deep-purple));
  color: var(--color-white);
}

.about-inner {
  max-width: 880px;
}

.about h2 {
  color: var(--color-white);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
}

.about p {
  margin-top: var(--space-4);
  font-size: 1.125rem;
  color: var(--color-gray-fog);
}

.about p:first-of-type {
  margin-top: var(--space-6);
}