/* ============================================
   QORV Campaign Landing Page — Styles
   ============================================ */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Brand palette — orange sampled from the QORV logo (#FF4C00) */
  --qorv-orange: #FF4C00;
  --qorv-orange-hover: #E54400;
  --bg-primary: #0A0A0A;
  --bg-surface: #111111;
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.72);
  --text-muted: rgba(255, 255, 255, 0.5);

  /* Typography */
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 1.125rem;    /* 18px */
  --line-height-body: 1.75;
  --line-height-heading: 1.2;

  /* Layout */
  --content-max-width: 720px;
  --page-padding-x: 1.5rem;
  --section-spacing: 4rem;
}

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

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-body);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: var(--qorv-orange);
  color: var(--text-primary);
}

/* --- Layout Container --- */
.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--page-padding-x);
}

/* --- Header --- */
.site-header {
  padding: 2.5rem 0 1rem;
  text-align: center;
}

.site-header .container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo {
  display: block;
  height: 48px;
  width: auto;
}

/* --- Hero Section --- */
.hero {
  padding: var(--section-spacing) 0 2rem;
  text-align: center;
}

.hero__headline {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: var(--line-height-heading);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero__question {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  line-height: var(--line-height-body);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Content Sections --- */
.content-section {
  padding: 2rem 0;
}

.content-section p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: var(--line-height-body);
}

.content-section p:last-child {
  margin-bottom: 0;
}

/* --- Section Heading --- */
.section-heading {
  font-size: clamp(1.35rem, 3.5vw, 1.75rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  padding: var(--section-spacing) 0 2rem;
  text-align: center;
}

/* --- Brand Name Accent --- */
.brand-accent {
  color: var(--qorv-orange);
  font-weight: 700;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: var(--section-spacing) 0;
}

.cta-section__lead {
  font-size: clamp(1.1rem, 2.5vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.cta-section__emphasis {
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 2.5rem;
}

.cta-button {
  display: inline-block;
  background-color: var(--qorv-orange);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 20px rgba(255, 76, 0, 0.25);
}

.cta-button:hover {
  background-color: var(--qorv-orange-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(255, 76, 0, 0.35);
}

.cta-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(255, 76, 0, 0.2);
}

/* --- Divider --- */
.divider {
  width: 48px;
  height: 3px;
  background-color: var(--qorv-orange);
  border: none;
  margin: 0 auto;
  opacity: 0.6;
}

/* --- Footer --- */
.site-footer {
  padding: 3rem 0 2rem;
  text-align: center;
}

.site-footer p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================
   Responsive
   ============================================ */

/* Tablet */
@media (max-width: 768px) {
  :root {
    --section-spacing: 3rem;
    --page-padding-x: 1.25rem;
  }

  .logo {
    height: 40px;
  }
}

/* Mobile */
@media (max-width: 480px) {
  :root {
    --section-spacing: 2.5rem;
    --page-padding-x: 1.125rem;
    --font-size-base: 1rem;
  }

  .site-header {
    padding: 1.75rem 0 0.75rem;
  }

  .logo {
    height: 36px;
  }

  .cta-button {
    display: block;
    width: 100%;
    padding: 1.1rem 1.5rem;
    font-size: 0.95rem;
  }
}