/* ============================================================
   HUMBLE — Marketing Site Styles
   Mobile-first, plain CSS, no build step required.
   ============================================================ */

/* ===== DESIGN TOKENS ===== */
:root {
  --bg:           #FAF7F2;
  --bg-alt:       #F2EBE0;
  --surface:      #FFFFFF;
  --text:         #231A0F;
  --text-muted:   #7A5F43;
  --accent:       #A8732A;
  --accent-dark:  #8A5E1F;
  --accent-light: #C49040;
  --border:       #E3D4BE;
  --shadow-color: 44, 26, 10;

  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-xl:  36px;

  --shadow-sm:  0 1px 4px rgba(var(--shadow-color), 0.07);
  --shadow-md:  0 4px 16px rgba(var(--shadow-color), 0.09);
  --shadow-lg:  0 12px 40px rgba(var(--shadow-color), 0.12);

  --nav-h: 64px;
}

/* ===== RESET ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 8px);
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--accent-dark);
}

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 24px;
}

.container-narrow {
  max-width: 680px;
}

.section {
  padding-block: 80px;
}

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

/* ===== TYPOGRAPHY ===== */
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 28px;
}

.section-title-center {
  text-align: center;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-top: -12px;
  margin-bottom: 48px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  padding: 11px 22px;
  border-radius: 100px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--accent);
  color: #FFFFFF;
  border-color: var(--accent);
}

.btn-primary:hover {
  background-color: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(var(--shadow-color), 0.2);
}

.btn-outline {
  background-color: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-outline:hover {
  background-color: var(--accent);
  color: #FFFFFF;
}

.btn-nav {
  background-color: var(--accent);
  color: #FFFFFF;
  border-color: var(--accent);
  padding: 9px 20px;
  font-size: 0.875rem;
}

.btn-nav:hover {
  background-color: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #FFFFFF;
}

.btn-lg {
  font-size: 1.0625rem;
  padding: 15px 32px;
}

.btn-icon {
  flex-shrink: 0;
}

/* ===== NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background-color: rgba(250, 247, 242, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  text-decoration: none;
}

.nav-logo:hover {
  color: var(--accent);
}

/* ===== HERO ===== */
.hero {
  padding-block: 80px 96px;
  text-align: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* App icon placeholder — swap for <img src="icon.png"> when ready */
.app-icon-placeholder {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  background: linear-gradient(145deg, #D4A043 0%, #9A6018 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  box-shadow: 0 8px 24px rgba(var(--shadow-color), 0.2);
}

.app-icon-placeholder span {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1;
  letter-spacing: -0.02em;
}

/* Real app icon — uncomment in HTML and style here */
.app-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 8px 24px rgba(var(--shadow-color), 0.2);
  margin-bottom: 28px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 24px;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 3vw, 1.625rem);
  font-weight: 400;
  line-height: 1.35;
  color: var(--text);
  margin-bottom: 16px;
  max-width: 560px;
}

.hero-sub {
  font-size: 1.0625rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 440px;
}

.hero-note {
  margin-top: 16px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

/* ===== VALUE SECTION ===== */
.value-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.value-body p {
  font-size: 1.0625rem;
  color: var(--text);
  line-height: 1.7;
}

/* ===== HOW IT WORKS ===== */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: 16px;
}

@media (min-width: 600px) {
  .steps {
    grid-template-columns: 1fr 1fr;
    gap: 40px 48px;
  }
}

@media (min-width: 960px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 40px 32px;
  }
}

.step {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.step-num {
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: -4px;
}

.step-icon {
  color: var(--accent);
  margin-bottom: 4px;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.1875rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--text);
}

.step-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== FEATURES ===== */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 16px;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-icon {
  color: var(--accent);
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.feature-title {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--text);
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== SCREENSHOTS ===== */
.screenshots-row {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 16px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin-top: 8px;
}

.screenshots-row::-webkit-scrollbar {
  display: none;
}

@media (min-width: 800px) {
  .screenshots-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    overflow-x: visible;
    padding-bottom: 0;
  }
}

.screenshot-frame {
  flex: 0 0 220px;
  width: 220px;
  border: 0;
  margin: 0;
}

@media (min-width: 800px) {
  .screenshot-frame {
    flex: 1;
    width: auto;
  }
}

.screenshot-placeholder {
  /* Tall phone aspect ratio: roughly 9:19 */
  aspect-ratio: 9 / 19;
  background-color: var(--bg-alt);
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  padding: 24px;
  transition: background-color 0.15s ease;
}

.screenshot-placeholder svg {
  opacity: 0.5;
  flex-shrink: 0;
}

.screenshot-placeholder span {
  font-size: 0.8125rem;
  font-weight: 500;
  text-align: center;
  line-height: 1.3;
}

.screenshot-img {
  width: 100%;
  border-radius: var(--radius-lg);
  display: block;
  box-shadow: var(--shadow-lg);
}

.screenshot-label {
  margin-top: 12px;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== CTA / DOWNLOAD ===== */
.section-cta {
  text-align: center;
}

.cta-sub {
  font-size: 1.0625rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.6;
  max-width: 480px;
  margin-inline: auto;
}

.cta-note {
  margin-top: 14px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.email-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-block: 40px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.email-divider::before,
.email-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--border);
}

.email-capture-label {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.email-form {
  display: flex;
  gap: 10px;
  max-width: 440px;
  margin-inline: auto;
  flex-wrap: wrap;
  justify-content: center;
}

.email-input {
  flex: 1;
  min-width: 200px;
  height: 48px;
  padding: 0 18px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  background-color: var(--surface);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.email-input::placeholder {
  color: #B5A08C;
}

.email-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(168, 115, 42, 0.15);
}

.email-success {
  margin-top: 16px;
  font-size: 0.9375rem;
  color: var(--accent-dark);
  font-weight: 500;
}

.email-error {
  margin-top: 16px;
  font-size: 0.9375rem;
  color: #B94040;
  font-weight: 500;
}

/* ===== FOOTER ===== */
.site-footer {
  background-color: var(--text);
  color: rgba(255, 255, 255, 0.65);
  padding-block: 40px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: -0.01em;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: rgba(255, 255, 255, 0.9);
}

.footer-copy {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
}

/* ===== POLICY / PROSE PAGES ===== */
.policy-header {
  padding-block: 60px 40px;
  border-bottom: 1px solid var(--border);
}

.policy-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 12px;
}

.policy-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.policy-body {
  padding-block: 48px 80px;
}

.policy-body h2 {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 400;
  color: var(--text);
  margin-top: 48px;
  margin-bottom: 16px;
  line-height: 1.3;
}

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

.policy-body h3 {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 28px;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.policy-body p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 16px;
}

.policy-body ul,
.policy-body ol {
  padding-left: 1.5rem;
  margin-bottom: 16px;
}

.policy-body li {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 6px;
}

.policy-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.policy-body a:hover {
  color: var(--accent-dark);
}

.policy-table-wrap {
  overflow-x: auto;
  margin-bottom: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.policy-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.policy-table th {
  background-color: var(--bg-alt);
  font-weight: 600;
  color: var(--text);
  text-align: left;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.policy-table td {
  padding: 10px 16px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.policy-table tr:last-child td {
  border-bottom: none;
}

.policy-table td:not(:first-child) {
  color: var(--text-muted);
  white-space: nowrap;
}

.policy-callout {
  background-color: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.policy-callout p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* ===== RESPONSIVE TWEAKS ===== */
@media (max-width: 480px) {
  .section {
    padding-block: 60px;
  }

  .hero {
    padding-block: 60px 72px;
  }

  .hero-title {
    font-size: 3.25rem;
  }

  .btn-lg {
    padding: 14px 26px;
    font-size: 1rem;
  }

  .container {
    padding-inline: 20px;
  }
}

@media (min-width: 960px) {
  .section {
    padding-block: 100px;
  }

  .hero {
    padding-block: 100px 120px;
  }
}