/* ================================================
   Alpha Consultoria — Design System
   ================================================ */

:root {
  /* CORES — Amarelo Alpha */
  --color-bg:          #1a1a1a;
  --color-surface:     #2a2a2a;
  --color-primary:     #F5A623;
  --color-primary-light: #FFD07A;
  --color-primary-dark:  #C7850E;
  --color-text:        #FFFFFF;
  --color-text-muted:  #9CA3AF;
  --color-border:      #3a3a3a;

  /* Scorecard only */
  --color-positive:    #4ADE80;
  --color-negative:    #F87171;
  --color-warning:     #FBBF24;

  /* TIPOGRAFIA */
  --font-primary: 'Poppins', sans-serif;

  /* SPACING */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* RADIUS */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background: radial-gradient(ellipse at center, #2d2010 0%, #1a1a1a 60%, #111111 100%);
  background-attachment: fixed;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== UTILITIES ===== */
.text-primary { color: var(--color-primary); }
.text-muted   { color: var(--color-text-muted); }

/* ===== HEADER ===== */
.header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg) var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  background: rgba(26, 26, 26, 0.8);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header__icon {
  color: var(--color-primary);
  font-size: 1.5rem;
}

.header__brand {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.header__brand--accent {
  color: var(--color-primary);
}

/* ===== HERO ===== */
.hero {
  text-align: center;
  padding: var(--space-3xl) var(--space-2xl) var(--space-xl);
  max-width: 720px;
  margin: 0 auto;
}

.hero__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto;
}

/* ===== MAIN ===== */
.main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-xl) var(--space-3xl);
}

/* ===== SECTION ===== */
.section {
  margin-bottom: var(--space-3xl);
}

.section__header {
  margin-bottom: var(--space-xl);
}

.section__step {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-bg);
  background: var(--color-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.section__desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ===== UPLOAD CARD ===== */
.upload-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.upload-card__dropzone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.upload-card__dropzone:hover,
.upload-card__dropzone.dragover {
  border-color: var(--color-primary);
  background: rgba(245, 166, 35, 0.05);
}

.upload-card__icon {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.upload-card__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.upload-card__browse {
  color: var(--color-primary);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.upload-card__hint {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  margin-top: var(--space-xs);
  opacity: 0.6;
}

.upload-card__file-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(245, 166, 35, 0.08);
  border: 1px solid rgba(245, 166, 35, 0.2);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
}

.upload-card__filename {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
}

.upload-card__remove {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0 var(--space-xs);
  transition: color 0.2s;
}

.upload-card__remove:hover {
  color: var(--color-negative);
}

/* ===== RESULT SELECT ===== */
.result-select {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.result-select__label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.result-select__options {
  display: flex;
  gap: var(--space-md);
}

.result-option {
  cursor: pointer;
}

.result-option input {
  display: none;
}

.result-option__pill {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  transition: all 0.2s;
}

.result-option__pill:hover {
  border-color: var(--color-text-muted);
}

.result-option input:checked + .result-option__pill--ganho {
  border-color: var(--color-positive);
  color: var(--color-positive);
  background: rgba(74, 222, 128, 0.1);
}

.result-option input:checked + .result-option__pill--perda {
  border-color: var(--color-negative);
  color: var(--color-negative);
  background: rgba(248, 113, 113, 0.1);
}

/* ===== BUTTON ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1rem;
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
}

.btn:active:not(:disabled) {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.btn--primary {
  background: var(--color-primary);
  color: #111;
  box-shadow: 0 0 20px rgba(245, 166, 35, 0.15);
}

.btn--primary:hover:not(:disabled) {
  background: var(--color-primary-light);
  box-shadow: 0 0 30px rgba(245, 166, 35, 0.3);
}

.btn--download {
  width: 100%;
}

.btn__loader {
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(0, 0, 0, 0.2);
  border-top-color: #111;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ===== RESULT ===== */
.result {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.result__badge-row {
  display: flex;
  justify-content: center;
}

.result__badge {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
}

.result__badge--ganho {
  background: rgba(74, 222, 128, 0.15);
  color: var(--color-positive);
  border: 1px solid rgba(74, 222, 128, 0.3);
}

.result__badge--perda {
  background: rgba(248, 113, 113, 0.15);
  color: var(--color-negative);
  border: 1px solid rgba(248, 113, 113, 0.3);
}

.result__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.result__card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.result__card-body {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.result__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .result__grid {
    grid-template-columns: 1fr;
  }
}

.result__card--positive {
  border-left: 3px solid var(--color-primary);
}

.result__card--improve {
  border-left: 3px solid var(--color-negative);
}

.result__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.result__list li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding-left: var(--space-lg);
  position: relative;
  line-height: 1.5;
}

.result__card--positive .result__list li::before {
  content: "+";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.result__card--improve .result__list li::before {
  content: "!";
  position: absolute;
  left: 0;
  color: var(--color-negative);
  font-weight: 700;
}

/* Ganho/Perda detail */
.detail-item {
  margin-bottom: var(--space-md);
}

.detail-item:last-child {
  margin-bottom: 0;
}

.detail-item__label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.detail-item__value {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===== SCORECARD ===== */
.scorecard {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.scorecard__item {
  background: rgba(26, 26, 26, 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s;
}

.scorecard__item:hover {
  border-color: #555;
}

.scorecard__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  user-select: none;
}

.scorecard__left {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}

.scorecard__metric {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.scorecard__justificativa {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 500px;
}

.scorecard__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.scorecard__bar {
  width: 80px;
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.scorecard__bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.6s ease;
}

.scorecard__nota-value {
  font-size: 1.3rem;
  font-weight: 800;
  min-width: 2rem;
  text-align: center;
}

.scorecard__chevron {
  color: var(--color-text-muted);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.scorecard__item--open .scorecard__chevron {
  transform: rotate(180deg);
}

/* Expandable details */
.scorecard__details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.scorecard__item--open .scorecard__details {
  max-height: 800px;
}

.scorecard__details-inner {
  padding: 0 var(--space-lg) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
}

.scorecard__justificativa-full {
  font-size: 0.85rem;
  color: var(--color-text);
  line-height: 1.6;
}

.scorecard__section-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.scorecard__bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.scorecard__bullets li {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding-left: var(--space-md);
  position: relative;
  line-height: 1.4;
}

.scorecard__bullets li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

.scorecard__bullets--positive li::before {
  content: "+";
  color: var(--color-primary);
  font-weight: 700;
}

.scorecard__bullets--improve li::before {
  content: "!";
  color: var(--color-negative);
  font-weight: 700;
}

.scorecard__bullets--trechos li {
  font-style: italic;
  color: var(--color-text-muted);
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-primary-dark);
  margin-left: 0;
}

.scorecard__bullets--trechos li::before {
  display: none;
}

/* ===== BRIEFING CTA ===== */
.briefing-cta {
  text-align: center;
}

/* ===== FOOTER ===== */
.footer {
  text-align: center;
  padding: var(--space-xl);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--color-border);
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-negative);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--color-text);
  font-size: 0.9rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  animation: slideIn 0.3s ease;
  z-index: 200;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ===== SKELETON LOADING ===== */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface) 25%, #333 50%, var(--color-surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .scorecard__justificativa {
    display: none;
  }
  .scorecard__bar {
    display: none;
  }
}