/* 
  Barbearia Premium - Design System Tokens
  Following .agents/skills/system-design.md
*/

:root {
  /* 1.1 Primitive Tokens (Base Values) */
  --primitive-color-black: #0a0a0a;
  --primitive-color-gray-900: #121212;
  --primitive-color-gray-800: #1e1e1e;
  --primitive-color-gray-700: #2a2a2a;
  --primitive-color-gray-400: #a1a1aa;
  --primitive-color-gold-500: #c5a059;
  --primitive-color-gold-600: #b38e44;
  --primitive-color-white: #ffffff;

  --primitive-spacing-1: 0.25rem; /* 4px */
  --primitive-spacing-2: 0.5rem;  /* 8px */
  --primitive-spacing-4: 1rem;    /* 16px */
  --primitive-spacing-6: 1.5rem;  /* 24px */
  --primitive-spacing-8: 2rem;    /* 32px */
  --primitive-spacing-12: 3rem;   /* 48px */
  --primitive-spacing-16: 4rem;   /* 64px */
  --primitive-spacing-24: 6rem;   /* 96px */

  --primitive-radius-sm: 4px;
  --primitive-radius-md: 8px;
  --primitive-radius-lg: 16px;
  --primitive-radius-full: 9999px;

  /* 1.2 Semantic Tokens (Intent) */
  --color-bg-main: var(--primitive-color-black);
  --color-bg-surface: var(--primitive-color-gray-900);
  --color-bg-card: var(--primitive-color-gray-800);
  
  --color-text-main: var(--primitive-color-white);
  --color-text-muted: var(--primitive-color-gray-400);
  --color-text-accent: var(--primitive-color-gold-500);

  --color-interactive-primary: var(--primitive-color-gold-500);
  --color-interactive-primary-hover: var(--primitive-color-gold-600);
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* Typography */
  --font-family-title: 'Playfair Display', serif;
  --font-family-body: 'Inter', sans-serif;
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg-main);
  color: var(--color-text-main);
  font-family: var(--font-family-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-family-title);
  color: var(--color-text-main);
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

ul {
  list-style: none;
}

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

/* Atomic Components (Atoms) */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--primitive-spacing-6);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--primitive-spacing-4) var(--primitive-spacing-8);
  border-radius: var(--primitive-radius-md);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.875rem;
}

.btn-primary {
  background-color: var(--color-interactive-primary);
  color: var(--primitive-color-black);
}

.btn-primary:hover {
  background-color: var(--color-interactive-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -10px var(--color-interactive-primary);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--color-interactive-primary);
  color: var(--color-interactive-primary);
}

.btn-outline:hover {
  background-color: var(--color-interactive-primary);
  color: var(--primitive-color-black);
}

/* Sections */

.section-padding {
  padding: var(--primitive-spacing-24) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--primitive-spacing-16);
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: var(--primitive-spacing-2);
}

.section-title .divider {
  width: 60px;
  height: 3px;
  background-color: var(--color-interactive-primary);
  margin: 0 auto;
}

/* Molecules & Organisms */

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--primitive-spacing-4) 0;
  transition: all 0.3s ease;
}

.header.scrolled {
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--primitive-spacing-2) 0;
  border-bottom: 1px solid var(--primitive-color-gray-700);
}

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

.logo {
  font-family: var(--font-family-title);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 2px;
}

.logo span {
  color: var(--color-text-accent);
}

.nav ul {
  display: flex;
  gap: var(--primitive-spacing-8);
  align-items: center;
}

.nav a {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav a:not(.btn):hover {
  color: var(--color-text-accent);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.1);
  transition: transform 10s ease-out;
}

.hero-bg .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(10, 10, 10, 0.9) 0%,
    rgba(10, 10, 10, 0.4) 100%
  );
}

.hero-content.container {
  max-width: 700px;
  margin-left: var(--primitive-spacing-6);
  margin-right: auto;
  text-align: left;
}
@media (min-width: 1200px) {
  .hero-content.container {
    margin-left: calc((100% - 1200px) / 2 + var(--primitive-spacing-6));
  }
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 4.5rem);
  margin-bottom: var(--primitive-spacing-6);
}

.hero h1 span {
  color: var(--color-text-accent);
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: var(--primitive-spacing-12);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: var(--primitive-spacing-4);
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--primitive-spacing-8);
}

.service-card {
  background-color: var(--color-bg-card);
  padding: var(--primitive-spacing-12) var(--primitive-spacing-8);
  border-radius: var(--primitive-radius-lg);
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: var(--color-interactive-primary);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--primitive-spacing-6);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--primitive-spacing-4);
}

.service-card p {
  color: var(--color-text-muted);
  margin-bottom: var(--primitive-spacing-6);
}

.price {
  display: block;
  font-weight: 700;
  color: var(--color-text-accent);
  font-size: 1.125rem;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--primitive-spacing-16);
  align-items: center;
}

.about-content h2 {
  font-size: 2.5rem;
  margin-bottom: var(--primitive-spacing-8);
}

.about-content p {
  margin-bottom: var(--primitive-spacing-6);
  color: var(--color-text-muted);
}

.img-rounded {
  border-radius: var(--primitive-radius-lg);
}

.shadow {
  box-shadow: var(--shadow-lg);
}

/* Footer / CTA */
.footer {
  background-color: var(--color-bg-surface);
  padding: var(--primitive-spacing-24) 0 var(--primitive-spacing-8);
  text-align: center;
}

.footer-cta {
  margin-bottom: var(--primitive-spacing-24);
}

.footer-cta h2 {
  font-size: 3rem;
  margin-bottom: var(--primitive-spacing-4);
}

.footer-cta p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: var(--primitive-spacing-12);
}

.btn-large {
  padding: var(--primitive-spacing-6) var(--primitive-spacing-12);
  font-size: 1.125rem;
}

.footer-bottom {
  border-top: 1px solid var(--primitive-color-gray-700);
  padding-top: var(--primitive-spacing-12);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.social-links a {
  margin-left: var(--primitive-spacing-6);
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Mobile Adjustments */
@media (max-width: 768px) {
  .nav {
    display: none; /* Mobile menu logic omitted for brevity, but could be added */
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--primitive-spacing-8);
  }
}