/* ============================================
   SOSMADRID.ES — Estilos Globales
   Diseño: Naturaleza / Reforestación
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colores principales */
  --color-primary: #1a5632;
  --color-primary-dark: #0e3a1f;
  --color-primary-light: #2d8a4e;
  --color-secondary: #d4a843;
  --color-secondary-dark: #b08930;
  --color-secondary-light: #f0d070;
  --color-accent: #e85d26;
  --color-accent-dark: #c44a1a;
  --color-danger: #dc2626;

  /* Neutros */
  --color-bg: #faf8f4;
  --color-bg-alt: #f0ece4;
  --color-bg-dark: #1a1a1a;
  --color-text: #2c2c2c;
  --color-text-light: #6b6b6b;
  --color-text-inverse: #ffffff;
  --color-border: #e0dcd4;

  /* Superficie */
  --color-surface: #ffffff;
  --color-surface-hover: #f8f6f0;
  --color-overlay: rgba(0, 0, 0, 0.6);

  /* Tipografía */
  --font-heading: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Consolas', 'Monaco', monospace;

  /* Tamaños */
  --fs-hero: clamp(2.5rem, 5vw, 4.5rem);
  --fs-h1: clamp(2rem, 4vw, 3.5rem);
  --fs-h2: clamp(1.5rem, 3vw, 2.5rem);
  --fs-h3: clamp(1.2rem, 2vw, 1.75rem);
  --fs-h4: 1.25rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-xs: 0.75rem;

  /* Espaciado */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Radios */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 50px rgba(0,0,0,0.15);

  /* Transiciones */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Contenedor */
  --container-max: 1200px;
  --container-narrow: 900px;

  /* Navegación */
  --nav-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* --- Layout --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* --- Navegación --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.nav.scrolled {
  box-shadow: var(--shadow-md);
}

.nav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav__logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  font-size: 1rem;
  line-height: 1;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  padding: 0.5rem 1rem;
  color: var(--color-text);
  font-size: var(--fs-small);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  position: relative;
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
  background: rgba(26, 86, 50, 0.08);
}

.nav__link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

.nav__cta {
  padding: 0.6rem 1.5rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: white !important;
  font-weight: 600;
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
  margin-left: 0.5rem;
}

.nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(232, 93, 38, 0.4);
  color: white !important;
}

/* Hamburguesa móvil */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Menú móvil */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  padding: var(--space-lg);
  flex-direction: column;
  gap: var(--space-xs);
  z-index: 999;
  overflow-y: auto;
}

.nav__mobile.open {
  display: flex;
}

.nav__mobile-link {
  padding: 1rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav__mobile-link:hover,
.nav__mobile-link.active {
  color: var(--color-primary);
  background: rgba(26, 86, 50, 0.08);
}

.nav__mobile-cta {
  display: inline-block;
  margin-top: var(--space-md);
  padding: 0.8rem 2rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: white;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-align: center;
  text-decoration: none;
}

@media (max-width: 900px) {
  .nav__links {
    display: none;
  }
  .nav__toggle {
    display: flex;
  }
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, #2d7a4e 70%, #3d9960 100%);
  z-index: 0;
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(232, 93, 38, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(212, 168, 67, 0.1) 0%, transparent 50%);
}

.hero__trees {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  z-index: 1;
  opacity: 0.1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
  color: var(--color-text-inverse);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.2rem;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  font-weight: 500;
  margin-bottom: var(--space-md);
  backdrop-filter: blur(8px);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-secondary);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  letter-spacing: -0.03em;
}

.hero__title span {
  color: var(--color-secondary);
}

.hero__subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  line-height: 1.6;
  opacity: 0.9;
  max-width: 600px;
  margin-bottom: var(--space-lg);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero__stat {
  text-align: left;
}

.hero__stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-secondary);
  line-height: 1;
  display: block;
}

.hero__stat-label {
  font-size: var(--fs-small);
  opacity: 0.8;
  margin-top: 0.25rem;
  display: block;
}

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-weight: 600;
  font-size: var(--fs-body);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
  box-shadow: 0 4px 15px rgba(26, 86, 50, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 86, 50, 0.4);
  color: white;
}

.btn--accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: white;
  box-shadow: 0 4px 15px rgba(232, 93, 38, 0.3);
}

.btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 93, 38, 0.4);
  color: white;
}

.btn--secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn--secondary:hover {
  border-color: white;
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: white;
}

.btn--ghost {
  background: rgba(26, 86, 50, 0.08);
  color: var(--color-primary);
}

.btn--ghost:hover {
  background: rgba(26, 86, 50, 0.15);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--fs-small);
}

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

/* --- Secciones --- */
.section {
  padding: var(--space-2xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.section--green {
  background: linear-gradient(180deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-text-inverse);
}

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

.section__label {
  display: inline-block;
  padding: 0.3rem 1rem;
  background: rgba(26, 86, 50, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section--dark .section__label,
.section--green .section__label {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-secondary);
}

.section__title {
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.section__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.7;
}

.section--dark .section__subtitle,
.section--green .section__subtitle {
  color: rgba(255, 255, 255, 0.7);
}

/* --- Tarjetas --- */
.cards {
  display: grid;
  gap: var(--space-md);
}

.cards--2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.cards--3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.cards--4 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
}

.card__icon--green {
  background: rgba(26, 86, 50, 0.1);
  color: var(--color-primary);
}

.card__icon--orange {
  background: rgba(232, 93, 38, 0.1);
  color: var(--color-accent);
}

.card__icon--gold {
  background: rgba(212, 168, 67, 0.1);
  color: var(--color-secondary-dark);
}

.card__icon--red {
  background: rgba(220, 38, 38, 0.1);
  color: var(--color-danger);
}

.card__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.card__text {
  color: var(--color-text-light);
  line-height: 1.7;
}

.card__footer {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* Tarjeta oscura */
.section--dark .card,
.section--green .card {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse);
}

.section--dark .card:hover,
.section--green .card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.section--dark .card__text,
.section--green .card__text {
  color: rgba(255, 255, 255, 0.7);
}

.section--dark .card__footer,
.section--green .card__footer {
  border-color: rgba(255, 255, 255, 0.1);
}

/* --- Stat Blocks (Contadores) --- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  padding: var(--space-xl) 0;
}

.stat-block {
  text-align: center;
  padding: var(--space-lg);
}

.stat-block__number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-block__number--accent {
  color: var(--color-accent);
}

.stat-block__number--gold {
  color: var(--color-secondary-dark);
}

.stat-block__label {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* --- Progress Bar --- */
.progress {
  width: 100%;
  height: 10px;
  background: rgba(26, 86, 50, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress__bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-full);
  transition: width 1.5s ease;
  width: 0;
}

.progress__bar--accent {
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
}

/* --- Incendio Data Card --- */
.fire-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.fire-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.fire-card__header {
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.fire-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(232, 93, 38, 0.1);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.fire-card__location {
  font-size: var(--fs-h3);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.fire-card__year {
  font-size: var(--fs-small);
  color: var(--color-text-light);
}

.fire-card__body {
  padding: 0 var(--space-lg) var(--space-lg);
}

.fire-card__metric {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}

.fire-card__metric:last-child {
  border-bottom: none;
}

.fire-card__metric-label {
  color: var(--color-text-light);
  font-size: var(--fs-small);
}

.fire-card__metric-value {
  font-weight: 700;
  color: var(--color-accent-dark);
}

.fire-card__footer {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-alt);
  font-size: var(--fs-small);
  color: var(--color-text-light);
  text-align: center;
}

/* --- Árbol / Especie Card --- */
.tree-card {
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.tree-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.tree-card__emoji {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
}

.tree-card__name {
  font-weight: 700;
  font-size: var(--fs-h4);
  margin-bottom: 0.25rem;
}

.tree-card__latin {
  font-style: italic;
  color: var(--color-text-light);
  font-size: var(--fs-small);
  margin-bottom: var(--space-sm);
}

.tree-card__desc {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-light));
}

.timeline__item {
  position: relative;
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: var(--space-md);
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 3px solid var(--color-bg);
}

.timeline__step {
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.timeline__title {
  font-size: var(--fs-h4);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.timeline__text {
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- Formularios --- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: var(--fs-small);
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--fs-body);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background: var(--color-surface);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 86, 50, 0.1);
}

.form-input::placeholder {
  color: #aaa;
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

.form-input--error {
  border-color: var(--color-danger);
}

.form-error {
  color: var(--color-danger);
  font-size: var(--fs-xs);
  margin-top: 0.25rem;
}

/* Tabs de donación */
.tabs {
  display: flex;
  gap: 0;
  margin-bottom: var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.tab {
  flex: 1;
  padding: 0.75rem 1rem;
  font-weight: 600;
  font-size: var(--fs-small);
  text-align: center;
  transition: all var(--transition-fast);
  color: var(--color-text-light);
  background: var(--color-bg-alt);
  border: none;
}

.tab:hover {
  background: rgba(26, 86, 50, 0.05);
}

.tab.active {
  background: var(--color-primary);
  color: white;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* --- Donación Amount Buttons --- */
.amount-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.amount-btn {
  padding: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1.1rem;
  text-align: center;
  transition: all var(--transition-fast);
  background: var(--color-surface);
  color: var(--color-text);
}

.amount-btn:hover {
  border-color: var(--color-primary);
  background: rgba(26, 86, 50, 0.05);
}

.amount-btn.selected {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: white;
}

.amount-btn__trees {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 400;
  opacity: 0.8;
  margin-top: 0.25rem;
}

/* --- Bizum Highlight --- */
.bizum-box {
  background: linear-gradient(135deg, #e8336e, #c2185b);
  color: white;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  margin: var(--space-md) 0;
}

.bizum-box__number {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  margin: var(--space-sm) 0;
}

.bizum-box__concept {
  font-size: var(--fs-small);
  opacity: 0.9;
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand {
  font-size: 1.3rem;
  font-weight: 800;
  color: white;
  margin-bottom: var(--space-sm);
}

.footer__desc {
  font-size: var(--fs-small);
  line-height: 1.7;
}

.footer__heading {
  font-size: var(--fs-small);
  font-weight: 700;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.footer__link {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--fs-small);
  padding: 0.3rem 0;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer__link:hover {
  color: var(--color-secondary);
}

.footer__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--fs-xs);
}

/* --- Animaciones al scroll --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal--left {
  transform: translateX(-30px);
}

.reveal--left.revealed {
  transform: translateX(0);
}

.reveal--right {
  transform: translateX(30px);
}

.reveal--right.revealed {
  transform: translateX(0);
}

.reveal--scale {
  transform: scale(0.9);
}

.reveal--scale.revealed {
  transform: scale(1);
}

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

.stagger.revealed > *:nth-child(1) { transition-delay: 0s; }
.stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.revealed > *:nth-child(3) { transition-delay: 0.2s; }
.stagger.revealed > *:nth-child(4) { transition-delay: 0.3s; }
.stagger.revealed > *:nth-child(5) { transition-delay: 0.4s; }
.stagger.revealed > *:nth-child(6) { transition-delay: 0.5s; }

/* --- Page Header (internal pages) --- */
.page-header {
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-xl);
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-text-inverse);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--color-bg);
  clip-path: ellipse(55% 100% at 50% 100%);
}

.page-header__title {
  font-size: var(--fs-h1);
  font-weight: 900;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.page-header__subtitle {
  font-size: 1.1rem;
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-small);
  margin-bottom: var(--space-md);
  opacity: 0.7;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: white;
}

.breadcrumb__sep {
  opacity: 0.5;
}

/* --- Quote Block --- */
.quote-block {
  position: relative;
  padding: var(--space-lg);
  padding-left: var(--space-xl);
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text);
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-lg) 0;
}

.quote-block__author {
  margin-top: var(--space-sm);
  font-style: normal;
  font-weight: 600;
  font-size: var(--fs-small);
  color: var(--color-primary);
}

/* --- Info Box --- */
.info-box {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
}

.info-box--green {
  background: rgba(26, 86, 50, 0.08);
  border: 1px solid rgba(26, 86, 50, 0.2);
}

.info-box--orange {
  background: rgba(232, 93, 38, 0.08);
  border: 1px solid rgba(232, 93, 38, 0.2);
}

.info-box--gold {
  background: rgba(212, 168, 67, 0.08);
  border: 1px solid rgba(212, 168, 67, 0.2);
}

.info-box__title {
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

/* --- Grid 2 column --- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* --- Leaf decoration --- */
.leaf-pattern {
  position: absolute;
  opacity: 0.03;
  font-size: 200px;
  pointer-events: none;
  z-index: 0;
}

/* --- Counter animation class --- */
.counter {
  display: inline-block;
}

/* --- Map placeholder --- */
.map-placeholder {
  width: 100%;
  height: 350px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
  font-size: var(--fs-small);
}

/* --- Responsive --- */
@media (max-width: 600px) {
  .hero__stats {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .hero__stat-number {
    font-size: 2rem;
  }

  .amount-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-block__number {
    font-size: 2rem;
  }

  .section {
    padding: var(--space-xl) 0;
  }
}

/* --- Print --- */
@media print {
  .nav, .nav__mobile, .footer {
    display: none;
  }
  body {
    color: black;
    background: white;
  }
}

/* --- Loading Spinner --- */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --- Notification Toast --- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  font-weight: 500;
  max-width: 400px;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast--success {
  background: var(--color-primary);
}

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

/* --- Donation Tracker --- */
.tracker {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
}

.tracker__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-sm);
}

.tracker__amount {
  font-size: var(--fs-h3);
  font-weight: 800;
  color: var(--color-primary);
}

.tracker__goal {
  font-size: var(--fs-small);
  color: var(--color-text-light);
}

.tracker__count {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  margin-top: var(--space-xs);
}