/* Стили для Telegram-формы и микроинтеракций */

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--progress, 0%);
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--cyan));
  z-index: 100;
  transition: width 0.1s ease-out;
  pointer-events: none;
}

/* ============================================================
   MODAL OVERLAY & BOOKING FORM
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(7, 23, 32, 0.92);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.2s ease;
}

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

.modal-card {
  position: relative;
  width: min(540px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  padding: 32px;
  border-radius: 20px;
  background: var(--bg2);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { transform: translateY(40px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: inherit;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: rotate(90deg);
}

.modal-card h3 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.modal-subtitle {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 15px;
}

/* ============================================================
   FORM STYLES
   ============================================================ */
.form-group {
  margin-bottom: 20px;
}

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

.required {
  color: var(--red);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.2);
  color: inherit;
  font: inherit;
  font-size: 15px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--cyan);
  background: rgba(0, 0, 0, 0.3);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.form-group input.invalid {
  border-color: var(--red);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

.error {
  display: block;
  margin-top: 6px;
  color: var(--red);
  font-size: 13px;
  min-height: 18px;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
}

.form-actions .btn {
  flex: 1;
}

.btn-spinner {
  display: inline-block;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-note {
  margin: 16px 0 0;
  padding: 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

/* ============================================================
   SUCCESS MESSAGE
   ============================================================ */
.form-success {
  text-align: center;
  padding: 32px 0;
}

.success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 40px;
  animation: successPop 0.5s ease;
}

@keyframes successPop {
  0% { transform: scale(0); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.form-success h4 {
  margin: 0 0 12px;
  font-size: 24px;
}

.form-success p {
  margin: 0;
  color: var(--muted);
}

.form-success a {
  color: var(--cyan);
  text-decoration: underline;
}

/* ============================================================
   PROJECT HOVER PREVIEWS
   ============================================================ */
.card {
  position: relative;
  overflow: hidden;
}

.project-preview {
  position: absolute;
  inset: 0;
  z-index: 10;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.project-preview.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.project-preview iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: inherit;
}

.preview-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(to top, rgba(7, 23, 32, 0.95), transparent);
  color: #fff;
  font-weight: 700;
  text-align: center;
}

/* ============================================================
   FADE-IN ANIMATIONS
   ============================================================ */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger delay для последовательных элементов */
.card:nth-child(1) { transition-delay: 0.05s; }
.card:nth-child(2) { transition-delay: 0.1s; }
.card:nth-child(3) { transition-delay: 0.15s; }
.card:nth-child(4) { transition-delay: 0.2s; }
.card:nth-child(5) { transition-delay: 0.25s; }
.card:nth-child(6) { transition-delay: 0.3s; }

/* ============================================================
   CURSOR TRAIL
   ============================================================ */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  pointer-events: none;
  z-index: 9999;
  opacity: calc(1 - var(--index) * 0.05);
  mix-blend-mode: screen;
}

.trail-toggle {
  font-size: 12px;
  padding: 6px 10px;
}

/* ============================================================
   GITHUB COUNTER EXPAND
   ============================================================ */
.live-commits {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.live-commits.expanded {
  margin-top: 16px;
}

.live-num {
  transition: color 0.2s ease;
}

.live-num:hover {
  color: var(--cyan);
}

/* ============================================================
   ACTIVE NAV INDICATOR
   ============================================================ */
.nav a[aria-current="page"] {
  color: #fff;
  background: rgba(57, 198, 202, 0.16);
  border-color: rgba(57, 198, 202, 0.45);
}

/* ============================================================
   EASTER EGG TOAST
   ============================================================ */
.easter-egg-toast {
  position: fixed;
  bottom: -120px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  max-width: 480px;
  padding: 20px 24px;
  border-radius: 16px;
  background: var(--bg2);
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
  transition: bottom 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.easter-egg-toast.visible {
  bottom: 24px;
}

.toast-content {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.toast-icon {
  font-size: 32px;
  flex-shrink: 0;
}

.toast-content b {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
}

.toast-content p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* ============================================================
   KONAMI MODE (секретная анимация)
   ============================================================ */
body.konami-mode {
  animation: rainbow 3s linear infinite;
}

@keyframes rainbow {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .modal-card {
    padding: 24px;
  }

  .modal-card h3 {
    font-size: 24px;
  }

  .form-actions {
    flex-direction: column;
  }

  .project-preview {
    display: none; /* на мобильных отключаем hover-preview */
  }

  .cursor-dot {
    display: none; /* курсора нет на touch-устройствах */
  }
}

/* ============================================================
   PREFERS-REDUCED-MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .cursor-dot,
  .project-preview,
  .fade-in-up {
    animation: none;
    transition: none;
  }
}

/* ============================================================
   LIGHT THEME OVERRIDES
   ============================================================ */
body.light .modal-overlay {
  background: rgba(255, 255, 255, 0.92);
}

body.light .modal-card {
  background: var(--paper);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.15);
}

body.light .form-group input,
body.light .form-group select,
body.light .form-group textarea {
  background: rgba(0, 0, 0, 0.04);
  border-color: var(--line2);
}

body.light .form-group input:focus,
body.light .form-group select:focus,
body.light .form-group textarea:focus {
  background: rgba(0, 0, 0, 0.06);
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .scroll-progress,
  .modal-overlay,
  .project-preview,
  .cursor-dot,
  .easter-egg-toast,
  .trail-toggle {
    display: none !important;
  }
}