/* ============================================================
   SOLSERE — CSS Principal
   Reset + Variables + Utilitarios base
   ============================================================ */

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-crema);
  color: var(--color-texto);
  line-height: 1.6;
  min-height: 100vh;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

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

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

ul, ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ---- CSS Custom Properties ---- */
:root {
  /* Paleta Botánica */
  --color-verde-oscuro: #2D5A27;
  --color-verde-medio: #4A7C40;
  --color-verde-claro: #8DB87A;
  --color-sage: #B8C9A8;
  --color-crema: #F9F5EE;
  --color-dorado: #C9A84C;
  --color-rosa-suave: #F2D4CC;
  --color-texto: #2C2C2C;
  --color-texto-suave: #5A5A5A;
  --color-blanco: #FFFFFF;

  /* Tipografía */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Lato', system-ui, sans-serif;

  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;

  /* Bordes y sombras */
  --border-radius-card: 1rem;
  --border-radius-btn: 0.5rem;
  --shadow-card: 0 4px 20px rgba(45, 90, 39, 0.08);
  --shadow-card-hover: 0 8px 30px rgba(45, 90, 39, 0.15);

  /* Transiciones */
  --transition-base: 0.3s ease;

  /* Layout */
  --container-max: 1200px;
  --container-padding: 1.25rem;
}

/* ---- Tipografía ---- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.25;
  color: var(--color-verde-oscuro);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }

em {
  font-style: italic;
  color: var(--color-verde-medio);
}

/* ---- Utilitarios ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section-padding {
  padding-block: var(--spacing-2xl);
}

.section-title {
  font-family: var(--font-heading);
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  text-align: center;
  color: var(--color-texto-suave);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
  max-width: 60ch;
  margin-inline: auto;
}

/* ---- Botones ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--border-radius-btn);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  transition: all var(--transition-base);
  cursor: pointer;
  min-height: 44px;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-verde-oscuro);
  color: var(--color-blanco);
  border: 2px solid var(--color-verde-oscuro);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-verde-medio);
  border-color: var(--color-verde-medio);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(45, 90, 39, 0.3);
}

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

.btn-outline:hover,
.btn-outline:focus-visible {
  background-color: var(--color-verde-oscuro);
  color: var(--color-blanco);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: #25D366;
  color: var(--color-blanco);
  border: 2px solid #25D366;
}

.btn-whatsapp:hover,
.btn-whatsapp:focus-visible {
  background-color: #1ebe57;
  border-color: #1ebe57;
  transform: translateY(-2px);
}

/* ---- Focus visible global ---- */
:focus-visible {
  outline: 3px solid var(--color-dorado);
  outline-offset: 3px;
}

/* ---- Scroll margin para anchors con header sticky ---- */
section[id] {
  scroll-margin-top: 80px;
}

/* ---- Responsive Improvements ---- */
@media (max-width: 1024px) {
  :root {
    --spacing-2xl: 4rem;
    --spacing-xl: 3rem;
    --spacing-lg: 2rem;
  }

  .container {
    padding-inline: 1rem;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-2xl: 3rem;
    --spacing-xl: 2.5rem;
    --spacing-lg: 1.75rem;
    --container-padding: 1rem;
  }

  h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
  h2 { font-size: clamp(1.4rem, 3.5vw, 2rem); }
  h3 { font-size: clamp(1rem, 2vw, 1.4rem); }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-2xl: 2rem;
    --spacing-xl: 1.75rem;
    --spacing-lg: 1.25rem;
    --spacing-md: 1rem;
  }

  h1 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
  h2 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
  h3 { font-size: clamp(0.95rem, 1.8vw, 1.25rem); }

  .section-padding {
    padding-block: var(--spacing-xl);
  }

  .btn {
    padding: 0.7rem 1.25rem;
    font-size: 0.9rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }
}