/* ==========================================================================
   index.css — Inside TuP
   Styles for index.html.
   Imports shared styles from global.css (fonts, variables, reset, header/nav, footer).
   ========================================================================== */

@import url('./global.css');

/* ==========================================================================
   1. HERO SECTION + DOT WAVE CANVAS
   ========================================================================== */

.section.hero {
  position: relative;
  overflow: hidden;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-block: var(--space-16);
}

.section.hero canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.section.hero > div {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section.hero > div > div {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-5);
}

/* Label — "UTN.BA · e-Learning · TuP" */
.section.hero > div > div > p:first-child {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section.hero h1 {
  font-size: clamp(2rem, 5vw, 3.3rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.section.hero h1 strong {
  font-weight: 500;
}

/* Description */
.section.hero > div > div > p:last-of-type {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 52ch;
  line-height: 1.75;
}

/* CTA — "Ver materias" */
.section.hero a {
  display: inline-flex;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  background-color: var(--color-accent);
  color: #141417;
  border: 1px solid var(--color-accent);
  transition:
    background-color var(--t-fast),
    border-color var(--t-fast),
    color var(--t-fast);
}

.section.hero a:hover {
  background-color: #141417;
  border-color: #9ae0c5;
  color: #9ae0c5;
  cursor: pointer;
}

/* ==========================================================================
   2. CENTERED SECTIONS — info + faq
   Max-width content column, border-top separator between sections.
   ========================================================================== */

.section.info,
.section.faq {
  border-bottom: 0.5px solid var(--color-border);
  padding-block: var(--space-12);
}

.section.info > div,
.section.faq > div {
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* Section header: label + h2 */
.section.info > div > div:first-child,
.section.faq > div > div:first-child {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.section.info > div > div:first-child > p,
.section.faq > div > div:first-child > p {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section.info h2,
.section.faq h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.section.info h2 strong,
.section.faq h2 strong {
  font-weight: 500;
}

/* ==========================================================================
   3. INFO SECTION — paragraphs + plan link
   ========================================================================== */

.section.info > div > div:last-child {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.section.info p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.section.info strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* "Ver plan de estudios" — ghost button style */
.section.info > div > div:last-child > a {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  border: 0.5px solid var(--color-border);
  color: var(--color-text-secondary);
  transition:
    border-color var(--t-fast),
    color var(--t-fast);
}

.section.info > div > div:last-child > a:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

/* ==========================================================================
   4. FAQ SECTION
   ========================================================================== */

#faq-items {
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-top: 0.5px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: 0.5px solid var(--color-border);
}

.faq-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) 0;
  gap: var(--space-4);
  text-align: left;
}

.faq-question {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--color-text-primary);
  line-height: 1.5;
}

/* Chevron — drawn with CSS, no SVG needed */
.faq-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--t-base);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 1px;
  background-color: var(--color-text-muted);
  transition: background-color var(--t-fast);
}

.faq-icon::before {
  transform: translateX(-3px) rotate(45deg);
}
.faq-icon::after {
  transform: translateX(3px) rotate(-45deg);
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
}

/* Answer body — hidden, revealed with max-height */
.faq-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
}

.faq-item.is-open .faq-body {
  max-height: 400px;
}

.faq-answer {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  padding-bottom: var(--space-5);
}

.faq-contact {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding-top: var(--space-6);
}

.faq-contact a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Footer styles are in global.css */