/* ==========================================================================
   ScamDetector - Neubrutalism Styles
   ========================================================================== */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #FFFDF7;
  --color-black: #1a1a1a;
  --color-white: #ffffff;
  --color-yellow: #FFD600;
  --color-pink: #FF6B9D;
  --color-blue: #4ECDC4;
  --color-purple: #A78BFA;
  --color-red: #FF4444;
  --color-orange: #FF9F43;
  --color-green: #2ECC71;
  --color-gray-light: #F0F0F0;
  --color-gray: #888888;

  --border: 3px solid var(--color-black);
  --shadow: 5px 5px 0px var(--color-black);
  --shadow-sm: 3px 3px 0px var(--color-black);
  --shadow-hover: 7px 7px 0px var(--color-black);
  --radius: 8px;

  --font-main: 'Space Grotesk', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-black);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* --- Header --- */
.header {
  background-color: var(--color-yellow);
  border-bottom: var(--border);
  padding: 1.5rem 0;
}

.header__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header__icon {
  font-size: 2rem;
  line-height: 1;
}

.header__title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.header__tagline {
  margin-top: 0.5rem;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-black);
  opacity: 0.8;
}

/* --- Main --- */
.main {
  flex: 1;
  padding: 2rem 0;
}

/* --- Form Card --- */
.form-card {
  background: var(--color-white);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.5rem;
}

.form-group {
  margin-bottom: 1.75rem;
}

.form-label {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.form-label__hint {
  display: block;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-gray);
  margin-top: 0.15rem;
}

/* --- Character Counter --- */
.form-counter {
  text-align: right;
  font-size: 0.8rem;
  color: var(--color-gray);
  margin-top: 0.4rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.form-counter--limit {
  color: var(--color-red);
  font-weight: 700;
}

/* --- Textarea --- */
.form-textarea {
  width: 100%;
  padding: 1rem;
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.5;
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  background: var(--color-bg);
  resize: vertical;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.form-textarea:focus {
  outline: none;
  box-shadow: var(--shadow-hover);
  transform: translate(-1px, -1px);
}

.form-textarea::placeholder {
  color: var(--color-gray);
}

/* --- File Upload --- */
.file-upload {
  position: relative;
  border: 3px dashed var(--color-black);
  border-radius: var(--radius);
  background: var(--color-bg);
  padding: 2rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease;
}

.file-upload:hover {
  background-color: var(--color-gray-light);
  transform: translate(-1px, -1px);
}

.file-upload.drag-over {
  background-color: #E8F8F5;
  border-color: var(--color-blue);
}

.file-upload__input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-upload__icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.file-upload__text {
  font-size: 1rem;
  font-weight: 600;
}

.file-upload__link {
  color: var(--color-pink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.file-upload__formats {
  font-size: 0.8rem;
  color: var(--color-gray);
  margin-top: 0.35rem;
}

/* --- Image Preview --- */
.image-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.image-preview:empty {
  display: none;
}

.preview-item {
  position: relative;
  width: 100px;
  height: 100px;
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-item__remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  background: var(--color-red);
  color: var(--color-white);
  border: 2px solid var(--color-black);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-family: var(--font-main);
  font-size: 1.1rem;
  font-weight: 700;
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  width: 100%;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hover);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px var(--color-black);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow);
}

.btn--primary {
  background-color: var(--color-yellow);
  color: var(--color-black);
}

.btn--secondary {
  background-color: var(--color-white);
  color: var(--color-black);
  margin-top: 1.5rem;
}

.btn__icon {
  font-size: 1.3rem;
  transition: transform 0.2s ease;
}

.btn:hover .btn__icon {
  transform: translateX(3px);
}

/* --- Loading --- */
.loading-section {
  margin-top: 2rem;
}

.loading-card {
  background: var(--color-white);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 3rem 2rem;
  text-align: center;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-gray-light);
  border-top-color: var(--color-pink);
  border-right-color: var(--color-yellow);
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  animation: spin 0.8s linear infinite;
}

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

.loading-text {
  font-size: 1.15rem;
  font-weight: 700;
}

.loading-subtext {
  font-size: 0.9rem;
  color: var(--color-gray);
  margin-top: 0.35rem;
}

/* --- Results --- */
.result-section {
  margin-top: 2rem;
}

.result-card {
  background: var(--color-white);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.5rem;
  animation: slideUp 0.35s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.risk-badge {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border: var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.risk-badge--high {
  background-color: var(--color-red);
}

.risk-badge--medium {
  background-color: var(--color-orange);
}

.risk-badge--low {
  background-color: var(--color-green);
}

.result-title {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
}

.result-explanation {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  padding: 1rem;
  background: var(--color-bg);
  border: var(--border);
  border-radius: var(--radius);
}

/* --- Alerts List --- */
.alerts-list {
  margin-bottom: 1.25rem;
}

.alerts-list__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.alert-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.6rem 0.75rem;
  margin-bottom: 0.5rem;
  background: #FFF5F5;
  border: 2px solid var(--color-red);
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
}

.alert-item__icon {
  flex-shrink: 0;
  font-size: 1.1rem;
  line-height: 1.4;
}

/* --- Recommendation --- */
.result-recommendation {
  padding: 1rem;
  background: #E8F8F5;
  border: var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  line-height: 1.5;
}

.result-recommendation__title {
  font-weight: 700;
  margin-bottom: 0.3rem;
}

/* --- Form Errors (inline) --- */
.form-errors {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  background: #FFF5F5;
  border: 2px solid var(--color-red);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-red);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  animation: shakeX 0.4s ease;
}

.form-errors::before {
  content: '\26A0\FE0F';
  flex-shrink: 0;
  font-size: 1.1rem;
}

@keyframes shakeX {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* --- Field Error State --- */
.form-textarea--error {
  border-color: var(--color-red);
  box-shadow: 3px 3px 0px var(--color-red);
}

.form-textarea--error:focus {
  box-shadow: 5px 5px 0px var(--color-red);
}

/* --- Toast Notification --- */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  max-width: 90%;
  width: 420px;
  padding: 0.85rem 1.25rem;
  background: var(--color-black);
  color: var(--color-white);
  border: 3px solid var(--color-black);
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}

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

.toast--warn {
  background: var(--color-orange);
  color: var(--color-black);
}

.toast--error {
  background: var(--color-red);
  color: var(--color-white);
}

/* --- Hidden Utility --- */
.hidden {
  display: none !important;
}

/* --- Footer --- */
.footer {
  border-top: var(--border);
  background: var(--color-gray-light);
  padding: 1.25rem 0;
  margin-top: auto;
}

.footer__text {
  font-size: 0.85rem;
  color: var(--color-gray);
  text-align: center;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* --- Mobile (small) --- */
@media (max-width: 480px) {
  .header__title {
    font-size: 1.5rem;
  }

  .header__icon {
    font-size: 1.5rem;
  }

  .header__tagline {
    font-size: 0.9rem;
  }

  .form-card {
    padding: 1.25rem 1rem;
  }

  .form-textarea {
    font-size: 0.95rem;
  }

  .btn {
    padding: 0.85rem 1.25rem;
    font-size: 1rem;
  }

  .result-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .risk-badge {
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
  }

  .result-title {
    font-size: 1.15rem;
  }

  .preview-item {
    width: 80px;
    height: 80px;
  }
}

/* --- Tablet --- */
@media (min-width: 481px) and (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .form-card {
    padding: 1.75rem 1.5rem;
  }
}

/* --- Desktop --- */
@media (min-width: 769px) {
  .header {
    padding: 2rem 0;
  }

  .header__title {
    font-size: 2.5rem;
  }

  .header__tagline {
    font-size: 1.15rem;
  }

  .main {
    padding: 2.5rem 0;
  }

  .form-card {
    padding: 2.5rem 2rem;
  }

  .container {
    padding: 0 2rem;
  }
}