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

:root {
  --bg-1: #0a0a1a;
  --bg-2: #12122a;
  --accent-1: #00d2ff;
  --accent-2: #a855f7;
  --accent-3: #ff4ecd;
  --text: #eaeaea;
  --text-dim: #9a9ab0;
  --card-bg: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
  background: var(--bg-1);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  cursor: default;
}

/* ===== Анимированный фон ===== */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: floatOrb 20s ease-in-out infinite;
}

.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--accent-1), transparent 70%);
  top: -150px; left: -100px;
  animation-duration: 18s;
}

.orb-2 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--accent-2), transparent 70%);
  bottom: -200px; right: -150px;
  animation-duration: 22s;
  animation-delay: -5s;
}

.orb-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--accent-3), transparent 70%);
  top: 40%; left: 45%;
  animation-duration: 25s;
  animation-delay: -10s;
  opacity: 0.3;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(80px, -60px) scale(1.1); }
  66%      { transform: translate(-60px, 80px) scale(0.9); }
}

/* Тонкая сетка поверх фона */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
}

/* Курсорная подсветка */
.cursor-glow {
  position: fixed;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.15), transparent 60%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  mix-blend-mode: screen;
}

/* ===== Шапка ===== */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 26, 0.7);
  padding: 18px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  animation: slideDown 0.6s ease;
}

@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* ===== Логотип ===== */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  transition: transform 0.3s;
}

.logo:hover {
  transform: scale(1.03);
}

/* Графическая иконка */
.logo-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: block;
  transition: filter 0.3s;
}

.logo:hover .logo-icon {
  filter: drop-shadow(0 0 10px rgba(0, 210, 255, 0.7));
}

/* Лёгкая пульсация искры */
.logo-icon circle:nth-of-type(2) {
  transform-origin: 31px 13px;
  animation: sparkPulse 2s ease-in-out infinite;
}

@keyframes sparkPulse {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50%      { opacity: 0.5;  transform: scale(1.4); }
}

/* Надпись после иконки */
.logo-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  white-space: nowrap;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3), var(--accent-1));
  background-size: 300% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: logoFlow 6s linear infinite;
}

@keyframes logoFlow {
  0%   { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 15px;
  padding: 9px 16px;
  border-radius: 10px;
  transition: color 0.3s, background 0.3s;
  position: relative;
}

nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

nav a.active {
  color: #fff;
}

nav a.active::after {
  content: '';
  position: absolute;
  left: 16px; right: 16px; bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
}

nav a.login-link {
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  color: #fff;
  font-weight: 600;
  margin-left: 10px;
  box-shadow: 0 4px 14px rgba(168, 85, 247, 0.3);
}

nav a.login-link:hover {
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.55);
  transform: translateY(-1px);
}

/* ===== Основной контент ===== */
main {
  flex: 1;
  padding: 60px 40px;
  max-width: 1150px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
  animation: fadeUp 0.8s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: 80px 20px 60px;
  position: relative;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3), var(--accent-1));
  background-size: 300% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: logoFlow 8s linear infinite;
}

.hero .typed {
  display: inline-block;
  border-right: 3px solid var(--accent-2);
  padding-right: 4px;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { border-color: transparent; }
}

.hero p {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-dim);
  max-width: 680px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero .btn-primary {
  font-size: 17px;
  padding: 16px 38px;
  position: relative;
  overflow: hidden;
}

.hero .btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), transparent);
  transition: left 0.6s;
}

.hero .btn-primary:hover::before {
  left: 100%;
}

/* ===== Кнопки ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.25s,
              filter 0.25s;
  position: relative;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 210, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 32px rgba(168, 85, 247, 0.5);
  filter: brightness(1.1);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.99);
}

/* ===== Карточки ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 40px;
  perspective: 1000px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 32px 28px;
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
              border-color 0.4s,
              background 0.4s,
              box-shadow 0.4s;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 18px;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

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

.card:hover {
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card .icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: inline-block;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.card:hover .icon {
  transform: scale(1.2) rotate(-8deg);
}

.card h3 {
  color: #fff;
  font-size: 19px;
  margin-bottom: 12px;
  font-weight: 700;
}

.card p {
  color: var(--text-dim);
  line-height: 1.65;
  font-size: 15px;
}

/* Свечение под курсором внутри карточки */
.card .glow-spot {
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.18), transparent 60%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.3s;
}

.card:hover .glow-spot {
  opacity: 1;
}

/* ===== Заголовки внутренних страниц ===== */
.page-title {
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  color: var(--text-dim);
  font-size: 17px;
  margin-bottom: 40px;
}

/* ===== Модальное окно ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 15, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
  animation: overlayIn 0.3s ease;
}

@keyframes overlayIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal {
  background: linear-gradient(160deg, #1a1a30, #14142a);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 44px 40px 40px;
  width: 100%;
  max-width: 420px;
  position: relative;
  animation: modalIn 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.modal::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3));
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(-40px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal.shake {
  animation: shake 0.5s ease;
}

@keyframes shake {
  0%, 100%     { transform: translateX(0); }
  20%, 60%     { transform: translateX(-8px); }
  40%, 80%     { transform: translateX(8px); }
}

.modal h2 {
  text-align: center;
  margin-bottom: 28px;
  color: #fff;
  font-size: 24px;
}

.modal label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.modal input {
  width: 100%;
  padding: 13px 16px;
  margin-bottom: 20px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  font-size: 15px;
  outline: none;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
  font-family: inherit;
}

.modal input:focus {
  border-color: var(--accent-1);
  background: rgba(0, 210, 255, 0.05);
  box-shadow: 0 0 0 4px rgba(0, 210, 255, 0.1);
}

.modal input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.modal .btn {
  width: 100%;
  justify-content: center;
  margin-top: 6px;
}

.close-btn {
  position: absolute;
  top: 16px;
  right: 18px;
  background: none;
  border: none;
  color: #777;
  font-size: 26px;
  cursor: pointer;
  width: 34px; height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s, background 0.3s, transform 0.3s;
  line-height: 1;
  padding: 0;
}

.close-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  transform: rotate(90deg);
}

.error-msg {
  background: rgba(255, 60, 60, 0.12);
  border: 1px solid rgba(255, 60, 60, 0.4);
  color: #ff9a9a;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  margin-bottom: 20px;
  display: none;
  line-height: 1.5;
}

.error-msg.show {
  display: block;
  animation: fadeUp 0.3s ease;
}

.locked .btn {
  opacity: 0.5;
  pointer-events: none;
}

.lock-icon {
  font-size: 40px;
  text-align: center;
  margin-bottom: 10px;
}

/* ===== Прогресс при блокировке ===== */
.lock-timer {
  margin-top: 16px;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
}

.lock-timer-bar {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #ff4e4e, #ff8a4e);
  transition: width 1s linear;
  border-radius: 3px;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 28px;
  color: #666;
  font-size: 14px;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
  margin-top: 40px;
}

footer a {
  color: var(--accent-1);
  text-decoration: none;
}

/* ===== Уведомление об успешном входе ===== */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  color: #fff;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(168, 85, 247, 0.5);
  z-index: 200;
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.4s;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ===== Адаптив ===== */
@media (max-width: 700px) {
  header {
    padding: 14px 20px;
    flex-wrap: wrap;
    gap: 12px;
  }
  nav a {
    padding: 8px 12px;
    font-size: 14px;
  }
  main {
    padding: 30px 20px;
  }
  .hero {
    padding: 40px 10px;
  }
  .modal {
    padding: 36px 26px 30px;
  }
  .logo-icon { width: 32px; height: 32px; }
  .logo-text { font-size: 17px; }
  .logo { gap: 9px; }
}