/* === CSS Variables & Reset === */
:root {
  --bg-primary: #1a1a2e;
  --bg-card: #16213e;
  --bg-input: #0f1a2e;
  --accent-fire: #e94560;
  --accent-fire-hover: #ff6b81;
  --accent-blue: #0f3460;
  --accent-success: #4ecdc4;
  --accent-warning: #f39c12;
  --text-primary: #e8e8e8;
  --text-secondary: #a0a0b0;
  --text-muted: #6b6b80;
  --border-color: #2a2a4a;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --transition: 0.3s ease;
}

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

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

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

/* === Header === */
.header {
  text-align: center;
  padding: 2rem 1rem 1rem;
}

.header__title {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-fire), #ff8a5c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header__tagline {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

/* === Main === */
.main {
  flex: 1;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 1rem;
}

/* === Input Section === */
.input-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.label--optional {
  margin-top: 1.5rem;
}

.label__optional {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.85rem;
}

/* === Textarea === */
.textarea {
  width: 100%;
  min-height: 200px;
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
  resize: vertical;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.textarea:focus {
  outline: none;
  border-color: var(--accent-fire);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.15);
}

.textarea::placeholder {
  color: var(--text-muted);
}

/* === Word Count === */
.word-count {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.word-count__hint {
  color: var(--text-muted);
}

.word-count--valid {
  color: var(--accent-success);
}

/* === Divider === */
.divider {
  display: flex;
  align-items: center;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.divider span {
  padding: 0 1rem;
}

/* === Dropzone === */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}

.dropzone:hover,
.dropzone--dragover {
  border-color: var(--accent-fire);
  background: rgba(233, 69, 96, 0.05);
}

.dropzone__icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.dropzone__text {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.dropzone__link {
  color: var(--accent-fire);
  text-decoration: underline;
  cursor: pointer;
}

.dropzone__formats {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.5rem;
}

.dropzone__file {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem;
}

.dropzone__file-icon {
  font-size: 1.2rem;
}

.dropzone__filename {
  color: var(--accent-success);
  font-weight: 500;
}

.dropzone__clear {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0 0.25rem;
  line-height: 1;
  transition: color var(--transition);
}

.dropzone__clear:hover {
  color: var(--accent-fire);
}

/* === Input Field === */
.input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input:focus {
  outline: none;
  border-color: var(--accent-fire);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.15);
}

.input::placeholder {
  color: var(--text-muted);
}

/* === Intensity Toggle === */
.intensity-toggle {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.intensity-btn {
  flex: 1;
  min-width: 100px;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.intensity-btn:hover {
  border-color: var(--accent-fire);
  color: var(--text-primary);
}

.intensity-btn--active {
  border-color: var(--accent-fire);
  background: rgba(233, 69, 96, 0.15);
  color: var(--accent-fire);
  font-weight: 700;
}

/* === CTA Button === */
.roast-btn {
  display: block;
  width: 100%;
  padding: 1rem 2rem;
  margin-top: 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-fire), #ff6b81);
  color: #fff;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(233, 69, 96, 0.3);
}

.roast-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(233, 69, 96, 0.4);
}

.roast-btn:active:not(:disabled) {
  transform: translateY(0);
}

.roast-btn:disabled {
  background: #3a3a5a;
  color: var(--text-muted);
  cursor: not-allowed;
  box-shadow: none;
}

/* === Loading Section === */
.loading-section {
  text-align: center;
}

.loading-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 4rem 2rem;
  box-shadow: var(--shadow);
}

.loading__spinner {
  font-size: 4rem;
  animation: pulse 1.5s ease-in-out infinite;
}

.loading__message {
  margin-top: 1.5rem;
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-style: italic;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.7; }
}

/* === Results Section === */
.results-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

/* Score Display */
.score-display {
  text-align: center;
  margin-bottom: 1.5rem;
}

.score-display__number {
  font-size: 4rem;
  font-weight: 800;
  color: var(--accent-fire);
  line-height: 1;
}

.score-display__max {
  font-size: 1.5rem;
  color: var(--text-muted);
  font-weight: 400;
}

.score-display__label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

/* Headline */
.result-headline {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: rgba(233, 69, 96, 0.08);
  border-left: 4px solid var(--accent-fire);
  animation: fadeIn 0.5s ease-out;
}

/* Top Fixes */
.top-fixes {
  background: rgba(15, 52, 96, 0.3);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--accent-blue);
}

.top-fixes__title {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.top-fixes__list {
  padding-left: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.top-fixes__list li {
  color: var(--text-secondary);
  line-height: 1.5;
}

/* === Collapsible Sections === */
.section-panel {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  overflow: hidden;
  animation: fadeIn 0.5s ease-out both;
}

.section-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: rgba(15, 52, 96, 0.2);
  cursor: pointer;
  transition: background var(--transition);
  border: none;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
}

.section-panel__header:hover {
  background: rgba(15, 52, 96, 0.4);
}

.section-panel__chevron {
  transition: transform var(--transition);
  font-size: 0.8rem;
}

.section-panel--open .section-panel__chevron {
  transform: rotate(180deg);
}

.section-panel__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.section-panel--open .section-panel__body {
  max-height: 5000px;
}

.section-panel__content {
  padding: 1rem 1.25rem;
}

/* === Issue Card === */
.issue-card {
  background: rgba(0, 0, 0, 0.15);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.issue-card__quote {
  font-family: 'Courier New', monospace;
  color: var(--accent-fire);
  text-decoration: line-through;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--accent-fire);
  background: rgba(233, 69, 96, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.issue-card__roast {
  position: relative;
  background: rgba(233, 69, 96, 0.1);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-weight: 500;
}

.issue-card__roast::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 20px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid rgba(233, 69, 96, 0.1);
}

.issue-card__why {
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  padding-left: 1rem;
}

.issue-card__fix {
  position: relative;
  border-left: 3px solid var(--accent-success);
  background: rgba(78, 205, 196, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.75rem 1rem;
  padding-right: 3rem;
  color: var(--accent-success);
  font-size: 0.9rem;
  line-height: 1.5;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  transition: all var(--transition);
}

.copy-btn:hover {
  color: var(--accent-success);
  border-color: var(--accent-success);
}

/* === Strengths Panel === */
.strengths-panel {
  background: rgba(78, 205, 196, 0.05);
  border: 1px solid rgba(78, 205, 196, 0.3);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.strengths-panel__title {
  font-size: 1.1rem;
  color: var(--accent-success);
  margin-bottom: 1rem;
}

.strengths-panel__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.strengths-panel__list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-secondary);
}

.strengths-panel__list li::before {
  content: '\2714';
  position: absolute;
  left: 0;
  color: var(--accent-success);
}

/* === ATS Panel === */
.ats-panel {
  background: rgba(243, 156, 18, 0.05);
  border: 1px solid rgba(243, 156, 18, 0.3);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.ats-panel__title {
  font-size: 1.1rem;
  color: var(--accent-warning);
  margin-bottom: 1rem;
}

.ats-panel__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ats-panel__list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-secondary);
}

.ats-panel__list li::before {
  content: '\26A0';
  position: absolute;
  left: 0;
  color: var(--accent-warning);
}

/* === Result Actions === */
.result-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.action-btn {
  flex: 1;
  min-width: 140px;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.action-btn:hover {
  border-color: var(--accent-fire);
  color: var(--text-primary);
}

.action-btn--export:hover {
  border-color: var(--accent-success);
  color: var(--accent-success);
}

.action-btn--share:hover {
  border-color: var(--accent-blue);
  color: var(--accent-fire-hover);
}

.action-btn--new {
  border-color: var(--accent-fire);
  color: var(--accent-fire);
}

.action-btn--new:hover {
  background: rgba(233, 69, 96, 0.1);
}

/* === Error Section === */
.error-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  box-shadow: var(--shadow);
  text-align: center;
}

.error-card__icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
}

.error-card__message {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

/* === Toast === */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  background: var(--bg-card);
  color: var(--accent-success);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-success);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
  z-index: 1000;
}

.toast--visible {
  transform: translateX(-50%) translateY(0);
}

/* === Footer === */
.footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* === Animations === */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; max-height: 0; }
  to { opacity: 1; max-height: 1000px; }
}

.fade-in {
  animation: fadeIn 0.5s ease-out both;
}

/* === Responsive Design === */
@media (max-width: 600px) {
  .header__title {
    font-size: 1.8rem;
  }

  .header__tagline {
    font-size: 0.95rem;
  }

  .input-card {
    padding: 1.25rem;
  }

  .textarea {
    min-height: 150px;
  }

  .intensity-toggle {
    flex-direction: column;
  }

  .intensity-btn {
    min-width: unset;
  }

  .score-display__number {
    font-size: 3rem;
  }

  .result-headline {
    font-size: 1.1rem;
  }

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

  .action-btn {
    min-width: unset;
  }

  .results-card {
    padding: 1.25rem;
  }

  .issue-card__fix {
    padding-right: 1rem;
    padding-bottom: 2.5rem;
  }

  .copy-btn {
    top: auto;
    bottom: 0.5rem;
    right: 0.5rem;
  }
}

@media (min-width: 601px) and (max-width: 900px) {
  .main {
    max-width: 700px;
  }
}