/* ===== ПРЕМИУМ ФОРМЫ ===== */

/* ===== БАЗОВЫЕ СТИЛИ ФОРМ ===== */
.premium-form {
  background: rgba(30, 41, 59, 0.9);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-2xl);
  position: relative;
  overflow: hidden;
}

.premium-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.premium-form:focus-within::before {
  opacity: 1;
}

.form-title {
  color: var(--color-text);
  font-size: var(--text-2xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  position: relative;
}

.form-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

/* ===== ГРУППЫ ПОЛЕЙ ===== */
.form-group {
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.form-label {
  display: block;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  transition: color var(--transition-base);
}

.form-group:focus-within .form-label {
  color: var(--color-accent);
}

/* ===== БАЗОВЫЕ ПОЛЯ ВВОДА ===== */
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: rgba(15, 23, 42, 0.8);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: all var(--transition-base);
  position: relative;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 
    0 0 0 4px rgba(255, 212, 59, 0.1),
    var(--shadow-lg);
  background: rgba(15, 23, 42, 0.9);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.form-input:focus::placeholder,
.form-textarea:focus::placeholder {
  color: rgba(148, 163, 184, 0.5);
}

/* ===== СПЕЦИАЛЬНЫЕ ПОЛЯ ===== */
.form-textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-primary);
  line-height: 1.6;
}

.form-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23FFD43B' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 12px center;
  background-repeat: no-repeat;
  background-size: 20px;
  padding-right: var(--spacing-3xl);
  cursor: pointer;
}

.form-select:focus {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2300B4D8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
}

/* ===== ВАЛИДАЦИЯ И ОШИБКИ ===== */
.form-group.has-error .form-input,
.form-group.has-error .form-textarea,
.form-group.has-error .form-select {
  border-color: var(--color-error);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.form-group.has-error .form-label {
  color: var(--color-error);
}

.form-group.has-success .form-input,
.form-group.has-success .form-textarea,
.form-group.has-success .form-select {
  border-color: var(--color-success);
  box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.1);
}

.form-group.has-success .form-label {
  color: var(--color-success);
}

.form-error {
  color: var(--color-error);
  font-size: var(--text-sm);
  margin-top: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.form-error.show {
  opacity: 1;
  transform: translateY(0);
}

.form-error::before {
  content: '⚠️';
  font-size: var(--text-sm);
}

.form-success {
  color: var(--color-success);
  font-size: var(--text-sm);
  margin-top: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.form-success.show {
  opacity: 1;
  transform: translateY(0);
}

.form-success::before {
  content: '✅';
  font-size: var(--text-sm);
}

/* ===== СЧЕТЧИК СИМВОЛОВ ===== */
.form-counter {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: right;
  margin-top: var(--spacing-sm);
  font-family: var(--font-mono);
  transition: color var(--transition-base);
}

.form-counter.warning {
  color: var(--color-warning);
}

.form-counter.error {
  color: var(--color-error);
}

/* ===== ЗАГРУЗКА ФАЙЛОВ ===== */
.file-upload-group {
  margin-bottom: var(--spacing-xl);
}

.file-upload-area {
  border: 2px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  background: rgba(15, 23, 42, 0.4);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.file-upload-area:hover {
  border-color: rgba(255, 212, 59, 0.4);
  background: rgba(15, 23, 42, 0.6);
}

.file-upload-area.dragover {
  border-color: var(--color-accent);
  background: rgba(255, 212, 59, 0.1);
  transform: scale(1.02);
}

.file-upload-area::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 212, 59, 0.1), transparent);
  transition: left 0.5s ease;
  pointer-events: none;
}

.file-upload-area:hover::before {
  left: 100%;
}

.upload-content {
  position: relative;
  z-index: 2;
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  display: block;
  opacity: 0.7;
  transition: all var(--transition-base);
}

.file-upload-area:hover .upload-icon {
  opacity: 1;
  transform: scale(1.1);
}

.upload-text {
  margin-bottom: var(--spacing-md);
}

.upload-main {
  display: block;
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.upload-sub {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.upload-formats {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
}

/* ===== ЗАГРУЖЕННЫЕ ФАЙЛЫ ===== */
.uploaded-files {
  margin-top: var(--spacing-lg);
}

.uploaded-file {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  animation: fileSlideIn 0.3s ease-out;
}

.file-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
}

.file-icon {
  font-size: var(--text-xl);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 212, 59, 0.1);
  border-radius: var(--radius-base);
}

.file-details {
  flex: 1;
}

.file-name {
  color: var(--color-text);
  font-size: var(--text-base);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  word-break: break-all;
}

.file-size {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-family: var(--font-mono);
}

.file-remove {
  background: none;
  border: none;
  color: var(--color-error);
  font-size: var(--text-lg);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-base);
  transition: all var(--transition-base);
}

.file-remove:hover {
  background: rgba(239, 68, 68, 0.1);
  transform: scale(1.1);
}

/* ===== КНОПКА ОТПРАВКИ ===== */
.form-submit {
  width: 100%;
  background: var(--gradient-accent);
  color: var(--color-primary);
  border: none;
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-family: var(--font-primary);
  font-size: var(--text-lg);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

.form-submit:hover {
  transform: translateY(-3px);
  box-shadow: 
    var(--shadow-2xl),
    0 0 30px rgba(255, 212, 59, 0.4);
}

.form-submit:active {
  transform: translateY(-1px);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-submit .btn-loader {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(10, 25, 41, 0.3);
  border-top: 2px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.form-submit.loading .btn-text {
  opacity: 0;
}

.form-submit.loading .btn-icon {
  opacity: 0;
}

.form-submit.loading .btn-loader {
  display: block;
}

/* ===== ЗАМЕТКИ И ИНФОРМАЦИЯ ===== */
.form-note {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-base);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ===== СТАТУСЫ ОТПРАВКИ ===== */
.form-status {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.3) rotateX(45deg);
  background: rgba(10, 25, 41, 0.98);
  backdrop-filter: blur(25px);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  z-index: var(--z-modal);
  max-width: 450px;
  width: 90%;
  opacity: 0;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.8),
    0 0 0 1px rgba(255, 255, 255, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
  perspective: 1000px;
}

.form-status.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1) rotateX(0deg);
  animation: statusAppear 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.form-status.success {
  border-color: rgba(255, 212, 59, 0.6);
  background: linear-gradient(135deg, rgba(10, 25, 41, 0.98), rgba(255, 212, 59, 0.1));
  animation: successGlow 2s ease-in-out infinite alternate;
}

.form-status.error {
  border-color: rgba(239, 68, 68, 0.6);
  background: linear-gradient(135deg, rgba(10, 25, 41, 0.98), rgba(239, 68, 68, 0.1));
}

.status-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-lg);
  display: block;
  animation: iconBounce 1.2s ease-out 0.2s both;
  filter: drop-shadow(0 0 20px rgba(255, 212, 59, 0.6));
}

.status-title {
  color: var(--color-text);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  animation: titleSlideIn 0.8s ease-out 0.4s both;
}

.status-message {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  animation: messageSlideIn 0.8s ease-out 0.6s both;
}

.status-close {
  background: var(--gradient-accent);
  color: var(--color-primary);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-xl);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  animation: buttonSlideIn 0.8s ease-out 0.8s both;
  box-shadow: 0 4px 15px rgba(255, 212, 59, 0.3);
}

.status-close:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(255, 212, 59, 0.5);
}

/* ===== АНИМАЦИИ ФОРМ ===== */
@keyframes fileSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-20px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes formShake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.form-shake {
  animation: formShake 0.5s ease-in-out;
}

/* ===== АДАПТИВНОСТЬ ===== */
@media (max-width: 768px) {
  .premium-form {
    padding: var(--spacing-xl);
    margin: 0 var(--spacing-md);
  }
  
  .form-input,
  .form-textarea,
  .form-select {
    padding: var(--spacing-md);
    font-size: var(--text-base);
  }
  
  .file-upload-area {
    padding: var(--spacing-xl);
    text-align: center;
  }
  
  .upload-icon {
    font-size: 2rem;
  }
  
  .upload-main {
    font-size: var(--text-base);
  }
  
  .upload-text {
    text-align: center;
  }
  
  .form-submit {
    padding: var(--spacing-md) var(--spacing-lg);
    margin: var(--spacing-2xl) auto 0;
    display: block;
  }
  
  .uploaded-file {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }
  
  .file-info {
    width: 100%;
  }
  
  .form-status {
    width: 95%;
    padding: var(--spacing-xl);
  }
}

@media (max-width: 480px) {
  .premium-form {
    padding: var(--spacing-lg);
  }
  
  .form-title {
    font-size: var(--text-xl);
  }
  
  .upload-text {
    margin-bottom: var(--spacing-sm);
  }
  
  .upload-main {
    font-size: var(--text-sm);
  }
  
  .upload-sub {
    font-size: var(--text-xs);
  }
}

/* ===== АНИМАЦИИ МОДАЛЬНОГО ОКНА SUCCESS ===== */
@keyframes statusAppear {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.3) rotateX(45deg) rotateY(15deg);
    filter: blur(10px);
  }
  50% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1.1) rotateX(-5deg) rotateY(-5deg);
    filter: blur(2px);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1) rotateX(0deg) rotateY(0deg);
    filter: blur(0px);
  }
}

@keyframes successGlow {
  0% {
    box-shadow: 
      0 20px 60px rgba(0, 0, 0, 0.8),
      0 0 0 1px rgba(255, 212, 59, 0.3),
      inset 0 1px 0 rgba(255, 212, 59, 0.2);
  }
  100% {
    box-shadow: 
      0 30px 80px rgba(0, 0, 0, 0.9),
      0 0 0 2px rgba(255, 212, 59, 0.6),
      inset 0 1px 0 rgba(255, 212, 59, 0.4),
      0 0 40px rgba(255, 212, 59, 0.4);
  }
}

@keyframes iconBounce {
  0% {
    opacity: 0;
    transform: scale(0.3) rotateZ(-180deg);
    filter: drop-shadow(0 0 0 rgba(255, 212, 59, 0));
  }
  50% {
    opacity: 0.8;
    transform: scale(1.3) rotateZ(-10deg);
    filter: drop-shadow(0 0 30px rgba(255, 212, 59, 0.8));
  }
  70% {
    transform: scale(0.9) rotateZ(5deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotateZ(0deg);
    filter: drop-shadow(0 0 20px rgba(255, 212, 59, 0.6));
  }
}

@keyframes titleSlideIn {
  0% {
    opacity: 0;
    transform: translateY(-30px) translateX(-20px) scale(0.8);
  }
  100% {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
  }
}

@keyframes messageSlideIn {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes buttonSlideIn {
  0% {
    opacity: 0;
    transform: translateY(30px) scale(0.8);
    box-shadow: 0 0 0 rgba(255, 212, 59, 0);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    box-shadow: 0 4px 15px rgba(255, 212, 59, 0.3);
  }
}