/* ============================================
   Portfolio Pedro Avilés · Hoja de estilos
   ============================================ */

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

/* === Variables === */
:root {
    /* Colores */
    --bg-primary: #FAFAFA;
    --bg-secondary: #FFFFFF;
    --bg-subtle: #F5F5F5;
    --text-primary: #0A0A0A;
    --text-secondary: #6B7280;
    --text-tertiary: #9CA3AF;
    --border: #E5E7EB;
    --border-hover: #D1D5DB;
    --accent: #2563EB;
    --accent-hover: #1D4ED8;
    --accent-soft: #EFF6FF;

    /* Verde PistaGO (solo dentro de su tarjeta) */
    --pistago-green-dark: #1B5E20;
    --pistago-green: #2E7D32;
    --pistago-lime: #C6FF00;

    /* Tipografía */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

    /* Espaciado */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Anchura máxima del contenido */
    --max-width: 1100px;
}

/* === Base === */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--accent-hover);
}

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--bg-subtle);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* === Layout === */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

/* === Navegación === */
.nav {
    border-bottom: 1px solid var(--border);
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.85);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    gap: 28px;
    font-size: 14px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 400;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

/* === Hero === */
.hero {
    padding: 96px 0 64px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.hero-badge::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #10B981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.hero h1 {
    font-size: clamp(36px, 6vw, 56px);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 22px);
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.hero-meta {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* === Botones === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 22px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    color: white;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-secondary:hover {
    border-color: var(--border-hover);
    background: var(--bg-secondary);
    transform: translateY(-1px);
}

/* === Section labels === */
.section-label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 24px;
}

.section-label .label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

.section-label .link {
    font-size: 13px;
    color: var(--accent);
}

/* === Project card (destacado en home) === */
.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 96px;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.project-card:hover {
    border-color: var(--border-hover);
}

.project-header {
    background: linear-gradient(135deg, var(--pistago-green-dark) 0%, var(--pistago-green) 100%);
    padding: 56px 36px;
    position: relative;
    overflow: hidden;
}

.project-header-arc {
    position: absolute;
    right: -80px;
    top: -80px;
    width: 280px;
    height: 280px;
    border: 6px solid var(--pistago-lime);
    border-radius: 50%;
    opacity: 0.4;
    pointer-events: none;
}

.project-header-content {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  position: relative;
  z-index: 1;
}

.project-icon {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 16px;          /* respeta el redondeado del PNG */
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);  /* despega el icono del banner */
}

.project-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-title {
    color: white;
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0;
}

.project-tagline {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    margin-top: 4px;
}

.project-body {
    padding: 28px 36px;
}

.tech-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.chip {
    background: var(--bg-subtle);
    color: #475569;
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 12.5px;
    font-weight: 500;
}

.project-description {
    color: var(--text-primary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 24px;
}

.project-actions {
    display: flex;
    gap: 20px;
    font-size: 14px;
    flex-wrap: wrap;
}

.project-actions a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* === Footer === */
.footer {
    border-top: 1px solid var(--border);
    padding: 28px 0;
    margin-top: 96px;
    font-size: 13px;
    color: var(--text-secondary);
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer a {
    color: var(--text-secondary);
}

.btn:focus-visible,
a:focus-visible {
       outline: 2px solid var(--accent);
       outline-offset: 3px;
   }

/* === Page content (interior) === */
.page-header {
    padding: 72px 0 32px;
}

.page-header h1 {
    font-size: clamp(32px, 5vw, 44px);
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 640px;
}

.page-section {
    padding: 32px 0;
}

.page-section h2 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.page-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 12px;
}

.page-section p {
    color: var(--text-primary);
    line-height: 1.75;
    margin-bottom: 14px;
}

.page-section ul {
    margin-left: 22px;
    margin-bottom: 16px;
}

.page-section li {
    margin-bottom: 6px;
    line-height: 1.7;
}

/* === Project list (grid de proyectos) === */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 32px;
}
.project-mini-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
}

.project-mini-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.project-mini-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-mini {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: border-color 0.2s, transform 0.2s;
    display: block;
    color: inherit;
}

.project-mini:hover {
    border-color: var(--border-hover);
    color: inherit;
    transform: translateY(-2px);
}

.project-mini-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.project-mini-tagline {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
}

.project-mini-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* === Caso de estudio (proyecto detallado) === */
.case-hero {
    background: linear-gradient(135deg, var(--pistago-green-dark) 0%, var(--pistago-green) 100%);
    color: white;
    padding: 96px 0 64px;
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
}

.case-hero-arc {
    position: absolute;
    right: -120px;
    top: 50%;
    transform: translateY(-50%);
    width: 380px;
    height: 380px;
    border: 8px solid var(--pistago-lime);
    border-radius: 50%;
    opacity: 0.35;
    pointer-events: none;
}

.case-hero .container {
    position: relative;
    z-index: 1;
}

.case-hero h1 {
    font-size: clamp(40px, 6vw, 56px);
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    color: white;
}

.case-hero .tagline {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 28px;
}

.case-meta {
    display: flex;
    gap: 36px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.case-meta strong {
    display: block;
    color: white;
    font-weight: 500;
    margin-bottom: 2px;
}

.case-cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.case-cta .btn-primary {
    background: var(--pistago-lime);
    color: var(--pistago-green-dark);
}

.case-cta .btn-primary:hover {
    background: white;
    color: var(--pistago-green-dark);
}

.case-cta .btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.case-cta .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    color: white;
}

/* === Stats highlights (caso de estudio) === */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin: 32px 0;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
}

.stat-value {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* === Features grid === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
}

.feature-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* === Captura de pantalla === */
.screenshot {
    margin: 24px 0;
    text-align: center;
}

.screenshot img {
    max-width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.screenshot-caption {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 8px;
    font-style: italic;
}

/* === Contacto === */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 32px;
}

.contact-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: border-color 0.2s, transform 0.2s;
}

.contact-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.contact-card .label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    margin-bottom: 8px;
}

.contact-card .value {
    font-size: 15px;
    color: var(--text-primary);
    word-break: break-all;
}

.contact-card a {
    color: var(--text-primary);
}

.contact-card a:hover {
    color: var(--accent);
}

/* === Responsive === */
@media (max-width: 640px) {
    .container {
        padding: 0 20px;
    }

    .nav-links {
        gap: 18px;
        font-size: 13px;
    }

    .hero {
        padding: 64px 0 48px;
    }

    .project-header {
        padding: 36px 24px;
    }

    .project-body {
        padding: 24px;
    }

    .case-meta {
        gap: 20px;
    }
}