/* RoundForge Website - Extracted from app theme */
:root {
  --color-primary: #CF1717;
  --color-primary-dark: #A51212;
  --color-primary-light: #E83333;
  --color-accent: #FFE673;
  --color-accent-dark: #E5CC5A;
  --color-success: #09CE00;
  --color-info: #34C759;
  --color-bg: #1E1E1E;
  --color-bg-lighter: #252525;
  --color-surface: #2B2B2B;
  --color-surface-medium: #494949;
  --color-text: #FFFFFF;
  --color-text-secondary: rgba(255, 255, 255, 0.7);
  --color-text-muted: rgba(255, 255, 255, 0.5);
  --color-border: rgba(255, 255, 255, 0.2);
  --color-border-medium: rgba(255, 255, 255, 0.3);
  --color-overlay: rgba(0, 0, 0, 0.5);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --font: 'Open Sans', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(30, 30, 30, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s ease;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all 0.3s ease;
  display: block;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-hamburger {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(30, 30, 30, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-links a {
    font-size: 16px;
  }
}

/* Hero Section */
.hero {
  padding: 120px 24px 80px;
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(207, 23, 23, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 230, 115, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero-content {
  text-align: left;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(207, 23, 23, 0.15);
  border: 1px solid rgba(207, 23, 23, 0.3);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary-light);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-title span {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

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

/* Device Mockup */
.device-frame {
  position: relative;
  width: 280px;
  max-width: 100%;
}

.device-frame-border {
  position: relative;
  padding: 12px;
  background: linear-gradient(145deg, #3a3a3a, #1a1a1a);
  border-radius: 36px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.device-frame-border::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: #333;
  border-radius: 2px;
}

.device-frame img {
  width: 100%;
  display: block;
  border-radius: 24px;
}

.device-frame-glow {
  position: absolute;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  background: radial-gradient(ellipse at center, rgba(207, 23, 23, 0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-content {
    text-align: center;
  }
  .hero-desc {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero {
    min-height: auto;
    padding: 100px 24px 60px;
  }
  .hero-title {
    font-size: 36px;
  }
  .device-frame {
    width: 220px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .device-frame {
    width: 200px;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(207, 23, 23, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border-medium);
}

.btn-secondary:hover {
  border-color: var(--color-text);
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--color-accent);
  color: #1E1E1E;
}

.btn-accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 230, 115, 0.2);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

/* Sections */
.section {
  padding: 80px 24px;
  position: relative;
}

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

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(207, 23, 23, 0.1);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .section {
    padding: 60px 20px;
  }
  .section-title {
    font-size: 28px;
  }
  .section-header {
    margin-bottom: 40px;
  }
}

/* Screenshots Carousel */
.screenshots-section {
  padding: 80px 24px;
  overflow: hidden;
}

.carousel-container {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.carousel-track {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height: 380px;
}

.carousel-slide {
  position: absolute;
  transition: all 0.4s ease;
  opacity: 0;
  transform: scale(0.85);
}

.carousel-slide.active {
  opacity: 1;
  transform: scale(1);
  z-index: 2;
}

.carousel-slide .device-frame {
  width: 220px;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 24px;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.2s ease;
}

.carousel-btn:hover {
  background: var(--color-surface-medium);
  border-color: var(--color-border-medium);
}

.carousel-dots {
  display: flex;
  gap: 8px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-surface-medium);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

.carousel-dot.active {
  background: var(--color-primary);
  width: 24px;
  border-radius: 4px;
}

@media (max-width: 768px) {
  .carousel-track {
    height: 320px;
  }
  .carousel-slide .device-frame {
    width: 180px;
  }
  .screenshots-section {
    padding: 60px 16px;
  }
}

@media (max-width: 480px) {
  .carousel-track {
    height: 280px;
  }
  .carousel-slide .device-frame {
    width: 160px;
  }
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

/* Feature Blocks */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 40px 0;
}

.feature-block:nth-child(even) {
  direction: rtl;
}

.feature-block:nth-child(even) > * {
  direction: ltr;
}

.feature-block-content {
  text-align: left;
}

.feature-block-icon {
  width: 48px;
  height: 48px;
  background: rgba(207, 23, 23, 0.12);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.feature-block h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-block p {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.feature-block ul {
  list-style: none;
  padding: 0;
}

.feature-block ul li {
  color: var(--color-text-secondary);
  font-size: 14px;
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.feature-block ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

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

.feature-block-visual .device-frame {
  width: 200px;
}

@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px 0;
  }
  .feature-block:nth-child(even) {
    direction: ltr;
  }
  .feature-block-visual .device-frame {
    width: 180px;
  }
  .feature-block h3 {
    font-size: 20px;
  }
}

/* Training Modes Grid */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.mode-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: left;
  transition: all 0.2s ease;
}

.mode-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.mode-card-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.mode-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.mode-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .modes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .modes-grid {
    grid-template-columns: 1fr;
  }
}

/* Achievements Grid */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 768px) {
  .achievements-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* CTA Section */
.cta-section {
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(207, 23, 23, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-inner p {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

/* Footer */
.footer {
  padding: 60px 24px 30px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--color-text);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* Page Header (for inner pages) */
.page-header {
  padding: 120px 24px 50px;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 300px;
  background: radial-gradient(ellipse at top center, rgba(207, 23, 23, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.page-header h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
}

.page-header p {
  font-size: 16px;
  color: var(--color-text-secondary);
  position: relative;
}

/* Content Container (for privacy, terms) */
.content-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.content-container h2 {
  font-size: 24px;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--color-text);
}

.content-container h3 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 28px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.content-container p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
  text-align: left;
}

.content-container ul,
.content-container ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.content-container li {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
  text-align: left;
}

.content-container a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.content-container strong {
  color: var(--color-text);
}

.last-updated {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  font-style: italic;
}

/* Contact Form */
.contact-section {
  padding: 0 24px 80px;
}

.contact-card {
  max-width: 640px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font);
  font-size: 15px;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(207, 23, 23, 0.15);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group input[type="file"] {
  padding: 10px;
  cursor: pointer;
}

.form-group input[type="file"]::file-selector-button {
  background: var(--color-surface-medium);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-family: var(--font);
  font-size: 13px;
  cursor: pointer;
  margin-right: 12px;
  transition: background 0.2s ease;
}

.form-group input[type="file"]::file-selector-button:hover {
  background: var(--color-primary);
}

.form-hint {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.form-submit-btn {
  width: 100%;
  padding: 14px 28px;
  font-size: 16px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}

.form-success.show {
  display: block;
}

.form-success-icon {
  width: 64px;
  height: 64px;
  background: rgba(9, 206, 0, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 20px;
}

.form-success h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-success p {
  font-size: 15px;
  color: var(--color-text-secondary);
}

@media (max-width: 640px) {
  .contact-card {
    padding: 24px;
  }
  .page-header h1 {
    font-size: 28px;
  }
}

/* Privacy Accept Button (shared include) */
.privacy-accept-btn {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  padding: 24px 24px 28px;
  background: linear-gradient(to top, var(--color-bg) 60%, transparent);
  display: flex;
  justify-content: center;
  align-items: center;
}

.privacy-accept-btn.hidden {
  display: none;
}

.accept-btn {
  width: 100%;
  max-width: 400px;
  padding: 16px 32px;
  font-size: 17px;
  font-weight: 700;
  background: var(--color-primary);
  color: var(--color-text);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font);
}

.accept-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(207, 23, 23, 0.3);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.5s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.5s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Utility */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.text-primary { color: var(--color-primary-light); }
.mt-0 { margin-top: 0; }