/* MobileVibe Marketing Site - styles.css */

/* ========================================
   CSS Custom Properties (Design System)
   ======================================== */
:root {
  /* Backgrounds */
  --bg-darkest: #1a1a2e;
  --bg-dark: #1e1e1e;
  --bg-card: #252526;
  --bg-elevated: #2d2d30;
  --bg-input: #3c3c3c;

  /* Borders */
  --border-subtle: #3e3e42;

  /* Text */
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #969696;

  /* Accent */
  --accent-teal: #4ec9b0;
  --accent-teal-hover: rgba(78, 201, 176, 0.15);
  --accent-teal-bg: rgba(78, 201, 176, 0.2);

  /* Status */
  --status-online-bg: #dcfce7;
  --status-online-text: #166534;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'Consolas', 'Monaco', monospace;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-secondary);
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  color: var(--text-primary);
}

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

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.3;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 1.75rem;
  margin-bottom: var(--space-lg);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--space-md);
}

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

.text-accent {
  color: var(--accent-teal);
}

/* ========================================
   Layout
   ======================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header p {
  color: var(--text-muted);
  max-width: 600px;
  margin: var(--space-md) auto 0;
}

/* ========================================
   Header / Navigation
   ======================================== */
.header {
  background: var(--bg-darkest);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-mobile {
  color: var(--accent-teal);
}

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

.nav {
  display: none;
  gap: var(--space-lg);
}

.nav a {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav a:hover {
  color: var(--text-primary);
}

.nav-cta {
  display: none;
}

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-secondary);
  transition: var(--transition-fast);
}

/* Mobile menu */
.mobile-nav {
  display: none;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-md) var(--space-lg);
}

.mobile-nav.active {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.mobile-nav a:hover {
  color: var(--accent-teal);
}

/* Desktop nav */
@media (min-width: 768px) {
  .nav {
    display: flex;
  }

  .nav-cta {
    display: block;
  }

  .mobile-menu-btn {
    display: none;
  }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  text-align: center;
}

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

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

.btn-primary:hover {
  background: #5fd4bc;
  color: var(--bg-darkest);
}

.btn-secondary {
  background: transparent;
  color: var(--accent-teal);
  border: 1px solid var(--accent-teal);
}

.btn-secondary:hover {
  background: var(--accent-teal-hover);
  color: var(--accent-teal);
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* ========================================
   Pills / Tags
   ======================================== */
.pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.pill-accent {
  background: var(--accent-teal-bg);
  color: var(--accent-teal);
  border-color: transparent;
}

.pill-online {
  background: var(--status-online-bg);
  color: var(--status-online-text);
  border-color: transparent;
}

/* ========================================
   Cards
   ======================================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--accent-teal);
  transform: translateY(-2px);
}

.card-muted {
  opacity: 0.7;
}

.card-muted:hover {
  opacity: 1;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.card-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.card-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.card-icon-svg {
  width: 1.5rem;
  height: 1.5rem;
  filter: brightness(0) invert(1);
}

/* Card grid */
.card-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

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

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* ========================================
   Hero Section
   ======================================== */
.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-darkest) 0%, var(--bg-dark) 100%);
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: var(--space-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subhead {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

.hero-icon {
  margin-bottom: var(--space-lg);
}

.hero-icon img {
  max-width: 140px;
  height: auto;
  filter: drop-shadow(0 15px 30px rgba(78, 201, 176, 0.3));
}

@media (min-width: 640px) {
  .hero h1 {
    font-size: 3rem;
  }

  .hero-ctas {
    flex-direction: row;
    justify-content: center;
  }

  .hero-icon img {
    max-width: 180px;
  }
}

@media (min-width: 1024px) {
  .hero h1 {
    font-size: 3.5rem;
  }

  .hero-icon img {
    max-width: 200px;
  }
}

/* ========================================
   What It Is Section
   ======================================== */
.what-it-is {
  background: var(--bg-dark);
}

.what-it-is-content {
  max-width: 800px;
  margin: 0 auto;
}

.what-it-is p {
  font-size: 1.125rem;
  line-height: 1.8;
}

.what-it-is ul {
  list-style: none;
  margin-top: var(--space-xl);
}

.what-it-is li {
  position: relative;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.what-it-is li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  background: var(--accent-teal);
  border-radius: 50%;
}

/* ========================================
   Screenshots / See It In Action Section
   ======================================== */
.screenshots {
  background: var(--bg-darkest);
}

.phone-gallery {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xl);
}

@media (min-width: 768px) {
  .phone-gallery {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-3xl);
  }
}

.phone-mockup {
  text-align: center;
}

.phone-mockup picture {
  display: block;
  background: #0a0a0a;
  border-radius: 32px;
  padding: 8px;
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.phone-mockup img {
  display: block;
  border-radius: 24px;
  max-width: 260px;
  height: auto;
}

@media (min-width: 640px) {
  .phone-mockup img {
    max-width: 300px;
  }
}

.phone-caption {
  margin-top: var(--space-lg);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ========================================
   How It Works Section
   ======================================== */
.how-it-works {
  background: var(--bg-darkest);
}

.steps {
  display: grid;
  gap: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--accent-teal);
  color: var(--bg-darkest);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
}

.step-content h3 {
  margin-bottom: var(--space-sm);
}

.step-content p {
  color: var(--text-muted);
  margin: 0;
}

.security-note {
  margin-top: var(--space-2xl);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.security-note h4 {
  color: var(--accent-teal);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.security-note ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.security-note li {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.security-note li::before {
  content: "\2713";
  color: var(--accent-teal);
  margin-right: var(--space-sm);
}

/* ========================================
   Origin Story Section
   ======================================== */
.origin {
  background: var(--bg-dark);
}

.origin-content {
  max-width: 800px;
  margin: 0 auto;
}

.origin blockquote {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--text-secondary);
  border-left: 3px solid var(--accent-teal);
  padding-left: var(--space-lg);
  margin: var(--space-xl) 0;
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
  background: var(--bg-darkest);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-item:first-child {
  border-top: 1px solid var(--border-subtle);
}

.faq-item summary {
  padding: var(--space-lg) 0;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--accent-teal);
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-answer {
  padding-bottom: var(--space-lg);
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========================================
   Waitlist Section
   ======================================== */
.waitlist {
  background: var(--bg-dark);
}

.waitlist-card {
  max-width: 500px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: var(--space-2xl);
  text-align: center;
}

.waitlist-card h2 {
  margin-bottom: var(--space-sm);
}

.waitlist-card > p {
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.waitlist-form-placeholder {
  padding: var(--space-lg);
  background: var(--bg-elevated);
  border-radius: 8px;
  border: 1px dashed var(--border-subtle);
}

.waitlist-form-placeholder p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--bg-darkest);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-xl) 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: var(--accent-teal);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.75rem;
  opacity: 0.7;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ========================================
   Utilities
   ======================================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.mt-lg {
  margin-top: var(--space-lg);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

/* ========================================
   Contact Form
   ======================================== */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-teal);
}

.contact-form textarea {
  resize: vertical;
  min-height: 80px;
}

.contact-form button {
  margin-top: var(--space-sm);
}

/* Waitlist CTA button */
.waitlist-btn {
  display: inline-block;
  margin-top: var(--space-md);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
  background: var(--bg-darkest);
}

.contact-card {
  max-width: 500px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: var(--space-2xl);
  text-align: center;
}

.contact-card h2 {
  margin-bottom: var(--space-sm);
}

.contact-card > p {
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

/* ========================================
   Cookie Consent Banner
   ======================================== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  z-index: 1000;
}

.cookie-banner p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-align: center;
}

.cookie-banner a {
  color: var(--accent-teal);
}

.cookie-buttons {
  display: flex;
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .cookie-banner {
    flex-direction: row;
    padding: var(--space-md) var(--space-xl);
  }
}

/* ========================================
   Legal Pages (Privacy, Terms)
   ======================================== */
.legal-page {
  padding-top: calc(var(--header-height) + var(--space-xl));
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  color: var(--text-muted);
  line-height: 1.8;
}

.legal-content h1 {
  color: var(--text-primary);
  font-size: clamp(2rem, 5vw, 2.5rem);
  margin-bottom: var(--space-sm);
}

.legal-effective {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-xl);
}

.legal-content h2 {
  color: var(--text-primary);
  font-size: 1.5rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.legal-content h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.legal-content p {
  margin-bottom: var(--space-md);
}

.legal-content ul {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.legal-content li {
  margin-bottom: var(--space-xs);
}

.legal-content hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: var(--space-xl) 0;
}

.legal-content a {
  color: var(--accent-teal);
}

.legal-content a:hover {
  text-decoration: underline;
}

.legal-disclaimer {
  font-weight: 600;
  color: var(--text-secondary);
}

.legal-content ul ul {
  margin-top: var(--space-xs);
  margin-bottom: var(--space-sm);
}

/* ========================================
   FAQ Page (Dedicated)
   ======================================== */
.faq-page {
  background: var(--bg-darkest);
  padding-top: calc(var(--space-3xl) + var(--space-xl));
}

.faq-page-content {
  max-width: 800px;
  margin: 0 auto;
}

.faq-page-content h1 {
  color: var(--text-primary);
  font-size: clamp(2rem, 5vw, 2.5rem);
  margin-bottom: var(--space-sm);
}

.faq-page-intro {
  color: var(--text-muted);
  font-size: 1.125rem;
  margin-bottom: var(--space-2xl);
}

/* FAQ Section Titles (non-collapsible headings) */
.faq-section-title {
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-subtle);
}

.faq-section-title:first-of-type {
  margin-top: 0;
}

/* FAQ Items (question-level accordions) in FAQ page */
.faq-page-content .faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  margin-bottom: var(--space-sm);
}

.faq-page-content .faq-item summary {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.95rem;
}

.faq-page-content .faq-item[open] {
  border-color: var(--accent-teal);
}

.faq-page-content .faq-item[open] summary {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-page-content .faq-answer {
  padding: var(--space-lg);
}

.faq-page-content .faq-answer p {
  margin-bottom: var(--space-md);
}

.faq-page-content .faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-page-content .faq-answer em {
  color: var(--text-secondary);
}

.faq-page-content .faq-answer ul,
.faq-page-content .faq-answer ol {
  color: var(--text-muted);
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.faq-page-content .faq-answer li {
  margin-bottom: var(--space-xs);
}

.faq-page-content .faq-answer code {
  background: var(--bg-elevated);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.875em;
}

/* Empty section placeholder */
.faq-empty {
  color: var(--text-muted);
  font-style: italic;
  padding: var(--space-md) 0;
}

/* Expand all button */
.faq-expand-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: var(--space-sm) var(--space-md);
  border-radius: 4px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: var(--space-lg);
}

.faq-expand-btn:hover {
  border-color: var(--accent-teal);
  color: var(--accent-teal);
}