/* ==========================================================================
   SECTIONS CSS — BUFFALO MANUFACTURA ARQUITECTÓNICA
   Hero, Manifesto, Services, Process, Editorial Grid, Single Project, Contact
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. HERO SECTION (HOME)
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--space-xl);
  padding-top: calc(var(--header-height) + 2rem);
  overflow: hidden;
}

.hero-background-wrapper {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.92) contrast(1.02);
  transform: scale(1.02);
  transition: transform 10s ease-out;
}

.hero-overlay-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg, 
    rgba(250, 244, 240, 0.72) 0%, 
    rgba(250, 244, 240, 0.45) 50%, 
    var(--color-bg-primary) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: flex-end;
}

.hero-tagline {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: var(--space-md);
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-purpura-arquitectonico);
}

.tagline-dot {
  opacity: 0.6;
  font-size: 0.65rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: var(--space-md);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  right: var(--site-gutter);
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transform: rotate(90deg);
  transform-origin: right bottom;
}

.hero-scroll-line {
  width: 40px;
  height: 1px;
  background-color: var(--color-purpura-arquitectonico);
}


/* --------------------------------------------------------------------------
   2. MANIFIESTO SECTION
   -------------------------------------------------------------------------- */
.manifesto-section {
  background-color: var(--color-bg-primary);
  position: relative;
}

.manifesto-quote {
  font-size: clamp(2rem, 5vw, 4.2rem);
  font-weight: var(--fw-bold);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-carbon-profundo);
  max-width: 24ch;
}

.manifesto-highlight {
  color: var(--color-purpura-arquitectonico);
  font-style: normal;
  display: inline;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 5rem;
  align-items: center;
  margin-top: var(--space-lg);
}


/* --------------------------------------------------------------------------
   3. SERVICIOS / CAPACIDADES
   -------------------------------------------------------------------------- */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-top: var(--space-lg);
}

.capability-card {
  padding: 3rem 2.5rem;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  position: relative;
}

.capability-card:hover {
  background-color: #FFFFFF;
  border-color: var(--color-purpura-arquitectonico);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(43, 18, 76, 0.08);
}

.capability-num {
  font-size: 0.85rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.25em;
  color: var(--color-purpura-arquitectonico);
  margin-bottom: 2rem;
  display: block;
}

.capability-title {
  font-size: 1.35rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  color: var(--color-carbon-profundo);
}

.capability-desc {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
}


/* --------------------------------------------------------------------------
   4. PROCESO SECTION
   -------------------------------------------------------------------------- */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  margin-top: var(--space-lg);
  position: relative;
}

.process-step {
  padding-top: 2rem;
  border-top: 2px solid var(--color-border);
  transition: border-color var(--transition-fast);
}

.process-step:hover {
  border-top-color: var(--color-purpura-arquitectonico);
}

.step-number {
  font-size: 0.8rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.2em;
  color: var(--color-purpura-arquitectonico);
  margin-bottom: 1rem;
  display: block;
}

.step-title {
  font-size: 1.15rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  color: var(--color-carbon-profundo);
}

.step-desc {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}


/* --------------------------------------------------------------------------
   5. ASYMMETRIC PORTFOLIO GRID
   -------------------------------------------------------------------------- */
.editorial-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2.5rem;
  margin-top: var(--space-lg);
}

.grid-col-12 { grid-column: span 12; }
.grid-col-8  { grid-column: span 8; }
.grid-col-7  { grid-column: span 7; }
.grid-col-6  { grid-column: span 6; }
.grid-col-5  { grid-column: span 5; }
.grid-col-4  { grid-column: span 4; }

/* Filter Tabs */
.filter-bar {
  display: flex;
  gap: 2rem;
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1rem;
  flex-wrap: wrap;
}

.filter-btn {
  font-size: 0.8rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--color-purpura-arquitectonico);
}

.filter-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-purpura-arquitectonico);
}


/* --------------------------------------------------------------------------
   6. SINGLE PROJECT PAGE
   -------------------------------------------------------------------------- */
.project-header-section {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: var(--space-lg);
}

.project-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin: var(--space-md) 0 var(--space-lg) 0;
}

.meta-item-label {
  font-size: 0.7rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-purpura-arquitectonico);
  margin-bottom: 0.4rem;
}

.meta-item-val {
  font-size: 1.05rem;
  font-weight: var(--fw-medium);
  color: var(--color-carbon-profundo);
}

.project-gallery-full {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin: var(--space-lg) 0;
}

.project-gallery-img {
  width: 100%;
  max-height: 85vh;
  object-fit: cover;
  border: 1px solid var(--color-border);
}


/* --------------------------------------------------------------------------
   7. CONTACT FORM
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 6rem;
  align-items: start;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-top: 3rem;
}

.contact-info-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.contact-label {
  font-size: 0.72rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-purpura-arquitectonico);
}

.contact-val {
  font-size: 1.1rem;
  color: var(--color-carbon-profundo);
}

.architectural-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
}

.form-label {
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 1.1rem 1.2rem;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  color: var(--color-carbon-profundo);
  font-size: 1rem;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-purpura-arquitectonico);
  background-color: #FFFFFF;
}

.form-select option {
  background-color: #FFFFFF;
  color: var(--color-carbon-profundo);
}

.form-feedback {
  padding: 1rem 1.5rem;
  background-color: rgba(43, 18, 76, 0.08);
  border-left: 3px solid var(--color-purpura-arquitectonico);
  color: var(--color-carbon-profundo);
  font-size: 0.9rem;
  display: none;
}