/* ============================================
   Screen Free Philly — Stylesheet
   Dark & Warm Edition
   ============================================ */

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

:root {
  --color-bg: #1a1a1f;
  --color-bg-alt: #222228;
  --color-surface: #2a2a31;
  --color-accent: #b5e550;
  --color-accent-light: #ccee80;
  --color-accent-dark: #96c438;
  --color-cream: #f0ebe3;
  --color-cream-dim: #c4bfb7;
  --color-text: #ece8e1;
  --color-text-muted: #9e9a93;
  --color-warm-gray: #4a4a50;
  --color-white: #ffffff;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 960px;
  --section-padding: 5rem 1.5rem;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  text-decoration: underline;
  color: var(--color-accent);
}

/* --- Typography --- */
h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-cream);
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1rem;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: var(--section-padding);
}

/* --- Navigation --- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(26, 26, 31, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-warm-gray);
  padding: 1rem 1.5rem;
}

.site-nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-nav .logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-cream);
}

.site-nav .nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.site-nav .nav-links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.site-nav .nav-links a:hover {
  color: var(--color-accent-light);
  text-decoration: none;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-cream);
  margin: 5px 0;
  transition: 0.3s;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 1.5rem 5rem;
  background-color: var(--color-bg);
}

.hero-content {
  max-width: 700px;
}

.hero h1 {
  margin-bottom: 1rem;
  color: var(--color-white);
}

.hero .tagline {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.hero .hero-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  text-decoration: none;
}

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

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

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

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

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

.btn-muted {
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  cursor: default;
}

/* --- About / Mission --- */
.about {
  background-color: var(--color-bg-alt);
}

.about-content {
  max-width: var(--max-width);
  margin: 0 auto;
}

.about-intro {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 680px;
}

.goals-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.goal-card {
  background: var(--color-surface);
  border-radius: 10px;
  padding: 1.75rem;
  border: 1px solid var(--color-warm-gray);
  transition: border-color 0.2s;
}

.goal-card:hover {
  border-color: var(--color-accent-dark);
}

.goal-card .goal-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  display: block;
  color: var(--color-accent);
}

.goal-card h3 {
  color: var(--color-accent-light);
  font-size: 1.1rem;
}

.goal-card p {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* --- Event Section --- */
.event {
  background-color: var(--color-bg);
}

.event-content {
  max-width: var(--max-width);
  margin: 0 auto;
}

.event-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: start;
}

.event-badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg);
  padding: 0.35rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.event h2 {
  font-size: 2.25rem;
}

.event-date {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.event-description {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 1.25rem;
}

.event-venue {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-cream);
  margin-bottom: 2rem;
}

.event-note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: 1.5rem;
}

.event-flyer {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.event-flyer img {
  width: 100%;
  height: auto;
  display: block;
}

/* --- Preview Section (Screen Free Weekend) --- */
.preview {
  background-color: var(--color-bg-alt);
  text-align: center;
}

.preview-content {
  max-width: 600px;
  margin: 0 auto;
}

.preview .preview-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 1rem;
}

.preview p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* --- Partners Section --- */
.partners {
  background-color: var(--color-surface);
  text-align: center;
}

.partners-content {
  max-width: 640px;
  margin: 0 auto;
}

.partners p {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

/* --- Signup Section --- */
.signup {
  background-color: var(--color-bg);
}

.signup-content {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}

.signup h2 {
  margin-bottom: 0.75rem;
}

.signup .signup-subtitle {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* Kit embed placeholder */
.form-placeholder {
  background: var(--color-surface);
  border: 2px dashed var(--color-warm-gray);
  border-radius: 10px;
  padding: 2.5rem 2rem;
  text-align: center;
}

.form-placeholder p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.form-placeholder .placeholder-label {
  display: block;
  font-weight: 600;
  color: var(--color-cream);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

/* Temporary working form (pre-Kit) */
.placeholder-form {
  margin-top: 1.5rem;
}

.placeholder-form .form-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.placeholder-form input {
  flex: 1;
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-warm-gray);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.placeholder-form input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.placeholder-form .btn {
  width: 100%;
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  padding: 3rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--color-warm-gray);
}

.site-footer p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.site-footer a {
  color: var(--color-accent-light);
}

.site-footer a:hover {
  color: var(--color-cream);
}

.footer-initiative {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- Divider --- */
.section-divider {
  width: 60px;
  height: 3px;
  background-color: var(--color-accent);
  border: none;
  margin: 0 0 2rem;
  border-radius: 2px;
}

.section-divider-center {
  margin-left: auto;
  margin-right: auto;
}

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

@media (max-width: 768px) {
  :root {
    --section-padding: 3.5rem 1.25rem;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.6rem;
  }

  .hero {
    min-height: auto;
    padding: 7rem 1.25rem 4rem;
  }

  .hero .tagline {
    font-size: 1.2rem;
  }

  .hero .hero-description {
    font-size: 1rem;
  }

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

  .event-layout {
    grid-template-columns: 1fr;
  }

  .event-flyer {
    max-width: 320px;
  }

  /* Mobile nav */
  .nav-toggle {
    display: block;
  }

  .site-nav .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(26, 26, 31, 0.98);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 0;
    border-bottom: 1px solid var(--color-warm-gray);
  }

  .site-nav .nav-links.open {
    display: flex;
  }

  .site-nav .nav-links li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-warm-gray);
  }

  .site-nav .nav-links li:last-child {
    border-bottom: none;
  }

  .placeholder-form .form-row {
    flex-direction: column;
  }

  .event h2 {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.85rem;
  }

  .hero .tagline {
    font-size: 1.05rem;
  }
}