frontend/src/styles.css

@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=Source+Serif+4:opsz,wght@8..60,500;8..60,700&display=swap");

:root {
  --bg-1: #f7f8f2;
  --bg-2: #f1efe1;
  --panel: #fffdf7;
  --ink: #1b1b19;
  --ink-soft: #57574f;
  --brand: #1c6e5a;
  --brand-2: #d97c2b;
  --line: #d8d3c0;
  --error-bg: #ffe3df;
  --error-ink: #7d2517;
  --radius: 18px;
  --shadow: 0 16px 36px rgba(25, 30, 22, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Space Grotesk", "Helvetica Neue", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(217, 124, 43, 0.18), transparent 30%),
    radial-gradient(circle at 90% 0%, rgba(28, 110, 90, 0.16), transparent 32%),
    linear-gradient(160deg, var(--bg-1), var(--bg-2));
  min-height: 100vh;
}

.loading-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
}

.page-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

.hero-card {
  background: linear-gradient(125deg, rgba(28, 110, 90, 0.12), rgba(217, 124, 43, 0.14));
  border: 1px solid rgba(28, 110, 90, 0.24);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 28px 30px;
  animation: reveal 360ms ease-out;
}

.example-button {
  border: 1px solid rgba(28, 110, 90, 0.55);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--brand);
  cursor: pointer;
  font-weight: 700;
  padding: 10px 14px;
}

.example-button:hover {
  background: #fff;
}

.form-actions {
  display: grid;
  gap: 7px;
  margin-bottom: 8px;
}

.form-actions button {
  width: 100%;
  text-align: left;
}

.clear-button {
  border: 1px solid #c9beb4;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  color: #654d42;
  cursor: pointer;
  font-weight: 700;
  padding: 10px 14px;
}

.clear-button:hover {
  background: #fff8f3;
}

.kicker {
  margin: 0;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--brand);
  font-size: 0.76rem;
  font-weight: 700;
}

h1 {
  margin: 6px 0 0;
  font-family: "Source Serif 4", serif;
  font-size: clamp(1.8rem, 3vw, 2.45rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.subtitle {
  margin: 0;
  max-width: 65ch;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(28, 110, 90, 0.4);
  background: rgba(255, 255, 255, 0.6);
  color: var(--brand);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  padding: 10px 16px;
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease;
}

.ghost-button:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.9);
}

.tabs-strip {
  display: flex;
  flex-direction: column;
  gap: 7px;
  position: sticky;
  top: 20px;
  align-self: start;
}

.tab-btn {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.75);
  color: var(--ink-soft);
  border-radius: 10px;
  padding: 11px 13px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: all 180ms ease;
}

.tab-btn:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.tab-btn.active {
  border-color: var(--brand);
  color: #fff;
  background: linear-gradient(120deg, var(--brand), #26866f);
  box-shadow: 0 8px 18px rgba(28, 110, 90, 0.2);
}

.error-box {
  margin-top: 14px;
  background: var(--error-bg);
  color: var(--error-ink);
  border: 1px solid rgba(125, 37, 23, 0.25);
  border-radius: 12px;
  padding: 10px 12px;
}

.warning-box {
  border: 1px solid #d99b2b;
  border-radius: 10px;
  background: #fff8e8;
  color: #704600;
  font-weight: 600;
  line-height: 1.45;
  padding: 12px 14px;
}

.tab-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  animation: reveal 280ms ease-out;
}

.workspace-layout {
  display: grid;
  grid-template-columns: minmax(190px, 220px) minmax(0, 1fr);
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}

.form-section {
  display: grid;
  gap: 14px;
}

h2,
h3 {
  margin: 0;
  font-family: "Source Serif 4", serif;
}

h2 {
  font-size: 1.4rem;
}

h3 {
  margin-top: 6px;
  font-size: 1.1rem;
}

label {
  display: grid;
  gap: 7px;
  font-weight: 600;
  color: var(--ink-soft);
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  border: 1px solid #c9c4b4;
  border-radius: 10px;
  background: #ffffff;
  color: var(--ink);
  padding: 10px 12px;
}

textarea {
  resize: vertical;
  min-height: 80px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--brand);
  outline: 2px solid rgba(28, 110, 90, 0.15);
}

button {
  border: 1px solid #ccc5b3;
  background: #fff;
  border-radius: 10px;
  padding: 9px 12px;
  cursor: pointer;
  font-weight: 600;
  transition: all 160ms ease;
}

button:hover {
  border-color: var(--brand);
  color: var(--brand);
}

button:disabled {
  opacity: 0.62;
  cursor: not-allowed;
}

.primary-btn {
  border-color: var(--brand);
  color: #fff;
  background: linear-gradient(120deg, var(--brand), #24816c);
  padding: 12px 18px;
}

.primary-btn:hover {
  color: #fff;
  transform: translateY(-1px);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.inline-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.motivo-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  align-items: center;
  background: #fbf9f0;
  border: 1px solid #ece7d7;
  border-radius: 12px;
  padding: 10px;
}

.checkbox-line {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  font-weight: 600;
}

.checkbox-line input {
  margin: 0;
}

.upload-line {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.file-input-label {
  display: grid;
  gap: 8px;
}

.compact-row {
  align-items: end;
}

.columns-section {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid #e4decc;
  border-radius: 12px;
  background: #fbf9f0;
}

.columns-heading {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: flex-start;
}

.columns-heading h3 {
  margin: 0 0 4px;
}

.columns-counter {
  white-space: nowrap;
  color: var(--brand);
  font-size: 0.88rem;
  font-weight: 700;
}

.columns-list {
  display: grid;
  gap: 6px;
  max-height: 320px;
  overflow-y: auto;
  padding-right: 2px;
}

.column-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 8px;
  border: 1px solid #e4decc;
  border-radius: 9px;
  background: #fff;
}

.column-order-actions {
  display: flex;
  gap: 5px;
}

.column-order-actions button {
  min-width: 36px;
  padding: 5px 8px;
}

.result-card {
  margin-top: 12px;
  border: 1px solid rgba(28, 110, 90, 0.26);
  background: rgba(28, 110, 90, 0.07);
  border-radius: 12px;
  padding: 12px;
}

.result-card p {
  margin: 0 0 6px;
}

.download-link {
  color: var(--brand);
  font-weight: 700;
}

.muted-message {
  margin: 0;
  color: #666355;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 920px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .workspace-layout {
    grid-template-columns: 1fr;
  }

  .tabs-strip {
    flex-direction: row;
    overflow-x: auto;
    position: static;
    padding-bottom: 4px;
  }

  .form-actions {
    display: flex;
    margin: 0;
  }

  .form-actions button {
    width: max-content;
    white-space: nowrap;
  }

  .tab-btn {
    min-width: max-content;
  }

  .motivo-row {
    grid-template-columns: 1fr;
  }

  .columns-heading {
    flex-direction: column;
  }
}