Initial commit: Go + HTMX CV Site

- Minimal, professional CV design with paper-on-gray layout
- Bilingual support (Spanish/English) with HTMX language switching
- JSON-based content management (cv-en.json, cv-es.json)
- Print-optimized CSS for PDF export
- Responsive design for all devices
- Go backend with stdlib net/http
- Clean, maintainable codebase

Features:
- 18+ years professional experience
- SAP CDC expertise
- Complete project history
- Education, certifications, awards
- Multi-language support

Tech stack: Go, HTMX, vanilla CSS

internal/config/config.go

@@ -0,0 +1,89 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+// Config holds all application configuration
+type Config struct {
+	Server   ServerConfig
+	Template TemplateConfig
+	Data     DataConfig
+}
+
+// ServerConfig contains server-specific settings
+type ServerConfig struct {
+	Port         string
+	Host         string
+	ReadTimeout  int
+	WriteTimeout int
+}
+
+// TemplateConfig contains template-specific settings
+type TemplateConfig struct {
+	Dir        string
+	PartialsDir string
+	HotReload  bool
+}
+
+// DataConfig contains data directory settings
+type DataConfig struct {
+	Dir string
+}
+
+// Load creates a new Config with values from environment or defaults
+func Load() *Config {
+	return &Config{
+		Server: ServerConfig{
+			Port:         getEnv("PORT", "8080"),
+			Host:         getEnv("HOST", "localhost"),
+			ReadTimeout:  getEnvAsInt("READ_TIMEOUT", 15),
+			WriteTimeout: getEnvAsInt("WRITE_TIMEOUT", 15),
+		},
+		Template: TemplateConfig{
+			Dir:        getEnv("TEMPLATE_DIR", "templates"),
+			PartialsDir: getEnv("PARTIALS_DIR", "templates/partials"),
+			HotReload:  getEnvAsBool("TEMPLATE_HOT_RELOAD", isDevelopment()),
+		},
+		Data: DataConfig{
+			Dir: getEnv("DATA_DIR", "data"),
+		},
+	}
+}
+
+// Address returns the server address in host:port format
+func (c *Config) Address() string {
+	return fmt.Sprintf("%s:%s", c.Server.Host, c.Server.Port)
+}
+
+// Helper functions
+
+func getEnv(key, defaultValue string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return defaultValue
+}
+
+func getEnvAsInt(key string, defaultValue int) int {
+	valueStr := os.Getenv(key)
+	if value, err := strconv.Atoi(valueStr); err == nil {
+		return value
+	}
+	return defaultValue
+}
+
+func getEnvAsBool(key string, defaultValue bool) bool {
+	valueStr := os.Getenv(key)
+	if value, err := strconv.ParseBool(valueStr); err == nil {
+		return value
+	}
+	return defaultValue
+}
+
+func isDevelopment() bool {
+	env := getEnv("GO_ENV", "development")
+	return env == "development" || env == "dev"
+}