/* Paint Calculator & Estimator -- marketing site stylesheet.
   Plain CSS, no framework, no build step. Colors match the Android app's
   own theme (teal-blue primary, amber/orange accent). */

:root {
  --color-primary: #1b5e63;
  --color-primary-dark: #123f43;
  --color-primary-light: #e4f1f1;
  --color-accent: #e8871e;
  --color-accent-dark: #9a4b00;
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #5b6666;
  --color-border: #e3e7e7;
  --radius: 12px;
  --max-width: 1120px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1,
h2,
h3 {
  line-height: 1.2;
  font-weight: 700;
  margin: 0 0 16px;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  margin: 0 0 16px;
  color: var(--color-text);
}

.text-muted {
  color: var(--color-text-muted);
}

section {
  padding: 64px 0;
}

/* Offsets anchor-scroll targets so content doesn't land underneath the
   sticky header (72px tall) when a nav link or footer link jumps here. */
section[id] {
  scroll-margin-top: 88px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  object-fit: cover;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav a.active {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle svg {
  width: 26px;
  height: 26px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #1a1200;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
}

.btn-play {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #000;
  color: #fff;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 500;
}

.btn-play:hover {
  background: #222;
  color: #fff;
  text-decoration: none;
}

.btn-play .play-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.btn-play .play-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.btn-play .play-text small {
  font-size: 0.7rem;
  opacity: 0.85;
}

.btn-play .play-text strong {
  font-size: 1.05rem;
}

.placeholder-note {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

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

.hero {
  padding: 72px 0 56px;
  background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.hero-tagline {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 46ch;
}

.hero-actions {
  margin-top: 28px;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual .icon-card {
  width: 220px;
  height: 220px;
  border-radius: 44px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual .icon-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Feature grid ---------- */

.section-heading {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.feature-card .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.feature-card h3 {
  margin-bottom: 8px;
}

.feature-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- How it works ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step {
  text-align: center;
  padding: 8px;
}

.step .step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #1a1200;
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step p {
  color: var(--color-text-muted);
}

/* ---------- Why-use list ---------- */

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 32px;
}

.why-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.why-item .check {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

/* ---------- Disclaimer / trust box ---------- */

.trust-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 24px 28px;
}

.trust-box p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
}

.cta-band h2 {
  color: #fff;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 50ch;
  margin: 0 auto 28px;
}

/* ---------- Content pages (privacy/support/about) ---------- */

.page-header {
  padding: 56px 0 24px;
  background: var(--color-primary-light);
}

.page-header p.updated {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

.content {
  padding: 48px 0 72px;
}

.content .container {
  max-width: 760px;
}

.content h2 {
  margin-top: 40px;
}

.content h2:first-child {
  margin-top: 0;
}

.content ul {
  color: var(--color-text);
  padding-left: 22px;
}

.content li {
  margin-bottom: 8px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}

.faq-item:first-child {
  padding-top: 0;
}

.faq-item h3 {
  margin-bottom: 8px;
}

.faq-item p {
  margin: 0;
  color: var(--color-text-muted);
}

.contact-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 32px;
}

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

.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 40px 0;
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
}

.site-footer a:hover {
  color: #fff;
}

.footer-copy {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-visual {
    order: -1;
  }

  .hero-visual .icon-card {
    width: 160px;
    height: 160px;
    border-radius: 32px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .why-grid {
    grid-template-columns: 1fr;
  }

  .site-footer .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 620px) {
  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    gap: 16px;
    display: none;
  }

  .main-nav.open {
    display: flex;
  }

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

  .feature-grid {
    grid-template-columns: 1fr;
  }

  section {
    padding: 48px 0;
  }
}