@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.07);
  --glass: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.1);
  --accent: #6c5ce7;
  --accent-light: #a29bfe;
  --accent-glow: rgba(108,92,231,0.3);
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #555568;
  --success: #00cec9;
  --error: #ff6b6b;
  --warning: #fdcb6e;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ===== ANIMATED BACKGROUND ===== */
.bg-effects {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
}
.bg-effects .orb {
  position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.15;
  animation: orbFloat 20s ease-in-out infinite;
}
.bg-effects .orb:nth-child(1) {
  width: 600px; height: 600px; background: var(--accent);
  top: -200px; left: -100px; animation-delay: 0s;
}
.bg-effects .orb:nth-child(2) {
  width: 500px; height: 500px; background: #e84393;
  bottom: -200px; right: -100px; animation-delay: -7s;
}
.bg-effects .orb:nth-child(3) {
  width: 400px; height: 400px; background: #00cec9;
  top: 50%; left: 50%; transform: translate(-50%, -50%); animation-delay: -14s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(50px, -30px) scale(1.1); }
  50% { transform: translate(-20px, 50px) scale(0.95); }
  75% { transform: translate(30px, 20px) scale(1.05); }
}

/* ===== CONTAINER ===== */
.container {
  max-width: 1100px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1;
}

/* ===== HEADER ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0;
  background: rgba(10,10,15,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition);
}
.header .container {
  display: flex; align-items: center; justify-content: space-between;
}
.logo {
  font-size: 1.4rem; font-weight: 700; color: var(--text-primary);
  text-decoration: none; display: flex; align-items: center; gap: 10px;
}
.logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #e84393);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.header-cta {
  padding: 10px 24px; border-radius: 50px; border: none;
  background: linear-gradient(135deg, var(--accent), #e84393);
  color: #fff; font-weight: 600; font-size: 0.9rem;
  cursor: pointer; transition: var(--transition);
  text-decoration: none;
}
.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

/* ===== HERO ===== */
.hero {
  padding: 160px 0 100px; text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; border-radius: 50px;
  background: var(--glass); border: 1px solid var(--glass-border);
  font-size: 0.85rem; color: var(--accent-light);
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease;
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--success);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800; line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--accent-light), #e84393, var(--success));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.15rem; color: var(--text-secondary);
  max-width: 600px; margin: 0 auto 40px;
  animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-actions {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}
.btn-primary {
  padding: 16px 36px; border-radius: 14px; border: none;
  background: linear-gradient(135deg, var(--accent), #e84393);
  color: #fff; font-weight: 600; font-size: 1rem;
  cursor: pointer; transition: var(--transition);
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px var(--accent-glow);
}
.btn-secondary {
  padding: 16px 36px; border-radius: 14px;
  border: 1px solid var(--glass-border);
  background: var(--glass); color: var(--text-primary);
  font-weight: 600; font-size: 1rem;
  cursor: pointer; transition: var(--transition);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 10px;
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}

/* ===== HOW IT WORKS ===== */
.section {
  padding: 80px 0;
}
.section-header {
  text-align: center; margin-bottom: 60px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700; margin-bottom: 16px;
}
.section-header p {
  color: var(--text-secondary); font-size: 1.05rem; max-width: 500px; margin: 0 auto;
}

.steps-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.step-card {
  padding: 32px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--glass-border);
  transition: var(--transition); position: relative; overflow: hidden;
}
.step-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), #e84393);
  opacity: 0; transition: var(--transition);
}
.step-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  border-color: rgba(108,92,231,0.3);
}
.step-card:hover::before { opacity: 1; }
.step-number {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #e84393);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.2rem; margin-bottom: 20px;
}
.step-card h3 {
  font-size: 1.2rem; font-weight: 600; margin-bottom: 10px;
}
.step-card p {
  color: var(--text-secondary); font-size: 0.95rem;
}

/* ===== FORM SECTION ===== */
.form-section {
  padding: 80px 0 120px;
}
.form-wrapper {
  max-width: 640px; margin: 0 auto;
  padding: 40px; border-radius: 24px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}
.form-title {
  font-size: 1.6rem; font-weight: 700; margin-bottom: 8px; text-align: center;
}
.form-subtitle {
  color: var(--text-secondary); text-align: center; margin-bottom: 32px; font-size: 0.95rem;
}

.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block; font-weight: 500; font-size: 0.9rem;
  margin-bottom: 8px; color: var(--text-secondary);
}
.form-group label .required {
  color: var(--error);
}
.form-input {
  width: 100%; padding: 14px 18px; border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.03);
  color: var(--text-primary); font-size: 1rem;
  font-family: inherit; transition: var(--transition);
  outline: none;
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: rgba(255,255,255,0.05);
}
.form-input::placeholder {
  color: var(--text-muted);
}
textarea.form-input {
  resize: vertical; min-height: 100px;
}

/* File upload */
.file-upload-area {
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 32px; text-align: center;
  cursor: pointer; transition: var(--transition);
  position: relative;
}
.file-upload-area:hover,
.file-upload-area.drag-over {
  border-color: var(--accent);
  background: rgba(108,92,231,0.05);
}
.file-upload-area input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer;
}
.file-upload-icon {
  font-size: 2rem; margin-bottom: 8px;
}
.file-upload-text {
  color: var(--text-secondary); font-size: 0.9rem;
}
.file-upload-text span {
  color: var(--accent-light); font-weight: 500;
}
.file-preview {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px;
}
.file-preview-item {
  width: 80px; height: 80px; border-radius: 8px;
  overflow: hidden; position: relative;
  border: 1px solid var(--glass-border);
}
.file-preview-item img {
  width: 100%; height: 100%; object-fit: cover;
}
.file-preview-item .remove-file {
  position: absolute; top: 4px; right: 4px;
  width: 20px; height: 20px; border-radius: 50%;
  background: rgba(0,0,0,0.7); color: #fff;
  border: none; cursor: pointer; font-size: 0.7rem;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.file-preview-item .remove-file:hover {
  background: var(--error);
}

/* Checkbox */
.checkbox-group {
  display: flex; align-items: flex-start; gap: 12px; margin: 24px 0;
}
.checkbox-group input[type="checkbox"] {
  display: none;
}
.checkmark {
  width: 22px; height: 22px; min-width: 22px;
  border-radius: 6px; border: 2px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); cursor: pointer; margin-top: 2px;
}
.checkbox-group input:checked + .checkmark {
  background: var(--accent); border-color: var(--accent);
}
.checkbox-group input:checked + .checkmark::after {
  content: '✓'; color: #fff; font-size: 0.8rem; font-weight: 700;
}
.checkbox-label {
  font-size: 0.85rem; color: var(--text-secondary); cursor: pointer; line-height: 1.5;
}
.checkbox-label a {
  color: var(--accent-light); text-decoration: none;
}
.checkbox-label a:hover {
  text-decoration: underline;
}

.btn-submit {
  width: 100%; padding: 16px; border-radius: var(--radius-sm);
  border: none; background: linear-gradient(135deg, var(--accent), #e84393);
  color: #fff; font-weight: 600; font-size: 1.05rem;
  cursor: pointer; transition: var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 10px;
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px var(--accent-glow);
}
.btn-submit:disabled {
  opacity: 0.5; cursor: not-allowed; transform: none;
  box-shadow: none;
}
.btn-submit .spinner {
  width: 20px; height: 20px; border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff; border-radius: 50%;
  animation: spin 0.8s linear infinite; display: none;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success message */
.form-success {
  display: none; text-align: center; padding: 40px 20px;
}
.form-success .success-icon {
  width: 80px; height: 80px; border-radius: 50%;
  background: linear-gradient(135deg, var(--success), #55efc4);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; margin: 0 auto 20px;
}
.form-success h3 {
  font-size: 1.4rem; margin-bottom: 10px;
}
.form-success p {
  color: var(--text-secondary); margin-bottom: 24px;
}

/* ===== ABOUT ===== */
.about-content {
  max-width: 700px; margin: 0 auto;
  padding: 32px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--glass-border);
}
.about-text p {
  color: var(--text-secondary); font-size: 1.05rem; margin-bottom: 16px;
}
.about-text p:last-child { margin-bottom: 0; }
.about-text strong { color: var(--text-primary); }

/* ===== SCORING ===== */
.scoring-grid {
  display: flex; gap: 24px; justify-content: center; flex-wrap: wrap;
}
.score-card {
  display: flex; align-items: center; gap: 20px;
  padding: 28px 36px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--glass-border);
  transition: var(--transition); min-width: 260px;
}
.score-card:hover {
  transform: translateY(-4px); background: var(--bg-card-hover);
}
.score-card.featured {
  border-color: rgba(253,203,110,0.3);
  background: rgba(253,203,110,0.05);
}
.score-emoji { font-size: 3rem; }
.score-label { font-weight: 600; font-size: 1.1rem; }
.score-value {
  font-size: 1.5rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent-light), #e84393);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.score-desc { color: var(--text-muted); font-size: 0.85rem; }

/* ===== PRIZES ===== */
.prizes-grid {
  display: flex; gap: 24px; justify-content: center; flex-wrap: wrap;
}
.prize-card {
  padding: 36px 32px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--glass-border);
  text-align: center; min-width: 240px; flex: 1; max-width: 320px;
  transition: var(--transition);
}
.prize-card:hover { transform: translateY(-4px); }
.prize-card.gold { border-color: rgba(255,215,0,0.3); background: rgba(255,215,0,0.04); }
.prize-card.silver { border-color: rgba(192,192,192,0.3); background: rgba(192,192,192,0.04); }
.prize-place { font-size: 3rem; margin-bottom: 12px; }
.prize-position { font-size: 0.85rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 2px; font-weight: 600; }
.prize-name { font-size: 1.2rem; font-weight: 700; margin: 8px 0; }
.prize-desc { color: var(--text-secondary); font-size: 0.9rem; }

/* ===== RULES ===== */
.rules-list {
  max-width: 700px; margin: 0 auto;
  display: flex; flex-direction: column; gap: 16px;
}
.rule-item {
  display: flex; align-items: flex-start; gap: 20px;
  padding: 24px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--glass-border);
  transition: var(--transition);
}
.rule-item:hover { background: var(--bg-card-hover); }
.rule-icon { font-size: 1.8rem; min-width: 40px; text-align: center; }
.rule-item h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 4px; }
.rule-item p { color: var(--text-secondary); font-size: 0.9rem; }

/* ===== FIELD HINT ===== */
.field-hint {
  margin-top: 6px; font-size: 0.8rem; color: var(--text-muted); line-height: 1.4;
}

/* ===== FOOTER ===== */
.footer {
  padding: 40px 0; border-top: 1px solid var(--glass-border);
  text-align: center;
}
.footer p {
  color: var(--text-muted); font-size: 0.85rem;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-on-scroll {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.visible {
  opacity: 1; transform: translateY(0);
}

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 30px; right: 30px; z-index: 200;
  padding: 16px 24px; border-radius: 12px;
  background: var(--bg-secondary); border: 1px solid var(--glass-border);
  color: var(--text-primary); font-size: 0.9rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  transform: translateY(100px); opacity: 0;
  transition: var(--transition);
}
.toast.show {
  transform: translateY(0); opacity: 1;
}
.toast.error { border-color: var(--error); }
.toast.success { border-color: var(--success); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding: 130px 0 60px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .form-wrapper { padding: 24px; margin: 0 8px; }
  .steps-grid { grid-template-columns: 1fr; }
  .header-cta { padding: 8px 18px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  .form-wrapper { padding: 20px 16px; }
}