/* Variables CSS */
:root {
  --color-bg: #fafaf9;
  --color-bg-card: #ffffff;
  --color-text: #1a1a1a;
  --color-text-light: #525252;
  --color-text-muted: #737373;
  --color-border: #e7e5e4;
  --color-border-soft: #f5f5f4;
  --color-accent: #171717;
  --color-accent-soft: #404040;
  --font-typewriter: 'Courier Prime', 'Courier New', monospace;
  --font-serif: 'Crimson Text', Georgia, 'Times New Roman', serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 5rem;
  --max-width: 880px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-soft: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
}

/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Fondo sutil tipo papel */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0 var(--spacing-sm);
  background-color: var(--color-bg);
  text-align: center;
}

.header .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.logo-img {
  width: 50px;
  height: auto;
  display: block;
  margin-bottom: 0.4rem;
}

.logo-title {
  font-family: var(--font-typewriter);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin: 0 0 0.2rem;
}

.logo-subtitle {
  font-family: var(--font-typewriter);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  margin: 0;
}

.logo-subsubtitle {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--color-text-light);
  max-width: 480px;
  margin: 0.5rem auto 0;
  line-height: 1.5;
}

/* Main */
.main {
  padding: var(--spacing-sm) 0 var(--spacing-2xl);
  min-height: calc(100vh - 280px);
}

/* Section label */
.section-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-label-text {
  font-family: var(--font-typewriter);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.section-label-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--color-border), transparent);
}

/* Contact Section */
.contact-section {
  margin-top: var(--spacing-sm);
}

.contact-wrapper {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-md);
  max-width: 520px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
}

.contact-title {
  font-family: var(--font-typewriter);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  text-align: center;
  color: var(--color-accent);
  letter-spacing: 0.1em;
}

/* Form Styles */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--color-text);
}

.form-input,
.form-textarea {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  width: 100%;
}

.form-input:hover,
.form-textarea:hover {
  border-color: var(--color-text-muted);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(23, 23, 23, 0.06);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #a3a3a3;
  font-style: italic;
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
  font-family: var(--font-serif);
}

.form-message {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.9rem;
  display: none;
  margin-top: var(--spacing-xs);
}

.form-message.success {
  display: block;
  background-color: #f0fdf4;
  color: #166534;
  border: 1px solid #86efac;
}

.form-message.error {
  display: block;
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.form-submit {
  font-family: var(--font-typewriter);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.75rem var(--spacing-md);
  background-color: var(--color-accent);
  color: var(--color-bg);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s ease;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: var(--spacing-xs);
}

.form-submit:hover {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent-soft);
  color: var(--color-bg);
}

.form-submit:active {
  transform: scale(0.98);
}

.form-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-2xl);
  background-color: var(--color-bg);
}

.footer-text {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  text-align: center;
  color: var(--color-text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
  }

  .logo-img {
    width: 64px;
  }

  .logo-title {
    font-size: 2.25rem;
    letter-spacing: 0.1em;
  }

  .logo-subtitle {
    font-size: 0.85rem;
    letter-spacing: 0.14em;
  }

  .logo-subsubtitle {
    font-size: 1rem;
    margin-top: var(--spacing-xs);
  }

  .contact-wrapper {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
  }

  .container {
    padding: 0 var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .logo-img {
    width: 56px;
  }

  .logo-title {
    font-size: 1.9rem;
    letter-spacing: 0.08em;
  }

  .logo-subtitle {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
  }

  .logo-subsubtitle {
    font-size: 0.95rem;
    margin-top: var(--spacing-xs);
  }

  .contact-title {
    font-size: 1.2rem;
  }

  .form-input,
  .form-textarea {
    font-size: 0.95rem;
    padding: 0.75rem 0.9rem;
  }

  .form-submit {
    letter-spacing: 0.1em;
  }
}