/* === TOWER STYLES === */
:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a2e;
  --text: #e8e8f0;
  --text-muted: #8888a0;
  --primary: #c9a227;
  --primary-dim: #8b6914;
  --accent: #ff6b35;
  --accent-glow: rgba(255, 107, 53, 0.3);
  --border: #2a2a3e;
  --success: #4ade80;
  --danger: #f87171;
  --gradient-start: #c9a227;
  --gradient-end: #ff6b35;
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* === NAV === */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.2rem;
}

.nav-logo {
  color: var(--primary);
  font-size: 1.5rem;
}

.nav-title {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.15em;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

/* === HERO === */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  min-height: 80vh;
  padding: 2rem;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
}

.gradient-text {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-muted);
  font-weight: 300;
  letter-spacing: 0.1em;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 500px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

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

.tower-glyph {
  font-size: 15rem;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.15;
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.1; transform: scale(1); }
  50% { opacity: 0.2; transform: scale(1.05); }
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.8rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--bg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* === SECTIONS === */
section {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--text);
}

/* === APPS GRID === */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  text-decoration: none;
  color: var(--text);
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  overflow: hidden;
}

.app-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  opacity: 0;
  transition: opacity 0.3s;
}

.app-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-dim);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.app-card:hover::before {
  opacity: 1;
}

.app-card h3 {
  font-size: 1.3rem;
  color: var(--text);
}

.app-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

.app-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.app-badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: var(--bg-elevated);
  color: var(--text-muted);
  align-self: flex-start;
}

.app-badge-donate {
  background: linear-gradient(135deg, var(--accent), #ff4757);
  color: white;
}

.app-badge-soon {
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
}

.app-card-highlight {
  border-color: rgba(255, 107, 53, 0.3);
}

.app-card.preview {
  opacity: 0.7;
  cursor: default;
}

.app-card.preview:hover {
  transform: none;
  border-color: var(--border);
}

/* === ABOUT TEASER === */
.about-teaser {
  background: var(--bg-elevated);
  border-radius: 1rem;
  text-align: center;
  padding: 4rem 2rem;
}

.teaser-content {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.teaser-content h2 {
  font-size: 2.5rem;
}

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

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  margin-top: 4rem;
  text-align: center;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.2rem;
}

.footer-logo {
  color: var(--primary);
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

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

/* === FORMS === */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.form-group label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="url"],
textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.8rem 1rem;
  color: var(--text);
  font-size: 1rem;
  width: 100%;
  transition: border-color 0.2s;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* === DROP ZONE === */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 1rem;
  padding: 3rem 2rem;
  text-align: center;
  transition: all 0.3s;
  cursor: pointer;
  background: var(--bg-elevated);
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--primary);
  background: rgba(201, 162, 39, 0.05);
}

.drop-zone-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

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

.drop-zone-text strong {
  color: var(--primary);
}

/* === PROGRESS === */
.progress-container {
  margin: 2rem 0;
}

.progress-bar {
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  border-radius: 4px;
  transition: width 0.3s;
  width: 0%;
}

.progress-text {
  text-align: center;
  margin-top: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* === RESULTS === */
.result-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  margin-top: 2rem;
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat {
  text-align: center;
  padding: 1rem;
  background: var(--bg-card);
  border-radius: 0.5rem;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* === ALERTS === */
.alert {
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.alert-success {
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

.alert-error {
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
}

/* === PRICING === */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.pricing-card.featured {
  border-color: var(--primary);
  position: relative;
}

.pricing-card.featured::before {
  content: 'POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--bg);
  padding: 0.3rem 1rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
}

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

.pricing-name {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
}

.pricing-price span {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
}

.pricing-features li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
}

/* === UTILITY === */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.hidden { display: none !important; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-title { font-size: 2.5rem; }
  .tower-glyph { font-size: 8rem; }
  .nav-links { display: none; }
  .grid { grid-template-columns: 1fr; }
}