/* ==========================================================================
   PREMIUM REDESIGN - GAZPTO (Inspired by Vercel/Linear/Stripe)
   ========================================================================== */

/* ==========================================================================
   #FOUNDATION: CSS Variables, Reset, and Base Styles
   ========================================================================== */

:root {
  /* Color Palette: Slate & Green */
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  
  --green-400: #4ade80;
  --green-500: #22c55e;
  --green-600: #16a34a;

  --white: #ffffff;
  --black: #000000;
  
  /* Gradients */
  --hero-gradient: radial-gradient(circle at 1px 1px, rgba(15, 23, 42, 0.08) 1px, transparent 0);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Spacing (8px Grid) */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */

  /* Shadows */
  --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);
  --shadow-inset: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
  --shadow-soft-border: 0 0 0 1px rgba(15, 23, 42, 0.08); /* Soft border effect */
  
  /* Transitions */
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modern Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-family: var(--font-sans); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { background-color: var(--slate-50); color: var(--slate-600); }
h1, h2, h3, h4, h5, h6 { color: var(--slate-900); font-weight: 700; line-height: 1.2; }
h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
p { line-height: 1.6; }
a { color: var(--green-500); text-decoration: none; }
a:hover { color: var(--green-600); }

/* ==========================================================================
   #LAYOUT: Container, Section, Bento Grid
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.section {
  padding: var(--space-16) 0;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: minmax(100px, auto);
  gap: var(--space-6);
}

.bento-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: var(--white);
  border-radius: 1.5rem; /* 24px */
  padding: var(--space-6); /* Adjusted padding */
  box-shadow: var(--shadow-soft-border);
  transition: var(--transition-slow);
  overflow: hidden;
}

.card-body {
    flex-grow: 1;
}

.card-footer {
    margin-top: var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
}


.bento-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft-border), var(--shadow-lg);
}

/* Grid Spanning */
.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-6 { grid-column: span 6 / span 6; }
.row-span-1 { grid-row: span 1 / span 1; }
.row-span-2 { grid-row: span 2 / span 2; }


/* ==========================================================================
   #COMPONENTS: Buttons, Cards, Tags
   ========================================================================== */

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: 600;
  white-space: nowrap;
  border-radius: 0.5rem; /* 8px */
  border: 1px solid transparent;
  padding: var(--space-3) var(--space-6);
  transition: var(--transition-fast);
  cursor: pointer;
  user-select: none;
}
.btn:focus-visible {
  outline: 2px solid var(--green-400);
  outline-offset: 2px;
}
.btn .icon {
  width: 1.25em;
  height: 1.25em;
  transition: var(--transition-fast);
}

/* Primary Button */
.btn-primary {
  background: var(--slate-900);
  color: var(--white);
  border-color: var(--slate-900);
}
.btn-primary:hover {
  background: var(--slate-800);
  transform: translateY(-2px);
}

/* Secondary Button */
.btn-secondary {
  background-color: var(--white);
  color: var(--slate-800);
  border-color: var(--slate-300);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  border-color: var(--slate-400);
  transform: translateY(-2px);
}
.btn-secondary:hover .icon {
  transform: translateX(2px);
}

/* Pill Tags */
.pill-tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 9999px;
  background-color: var(--green-400);
  color: var(--slate-900);
}

/* ==========================================================================
   #HEADER & NAVIGATION
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  padding: var(--space-4) 0;
  background: rgba(248, 250, 252, 0.8); /* slate-50 with transparency */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--slate-200);
  z-index: 50;
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  color: var(--slate-900);
}
.main-nav {
  display: none; /* Mobile first */
}
.main-nav ul {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}
.main-nav a {
  color: var(--slate-600);
  font-weight: 500;
  transition: color 0.2s ease;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--slate-900);
}
@media (min-width: 768px) {
  .main-nav { display: block; }
}

/* ==========================================================================
   #SECTIONS: Hero, Features, Stats
   ========================================================================== */

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--space-16) 0;
}
.hero h1 {
  font-size: 3.75rem; /* 60px */
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1.1;
  max-width: 800px;
  margin: 0 auto var(--space-6);
}
.hero p {
  font-size: 1.25rem; /* 20px */
  color: var(--slate-500);
  max-width: 700px;
  margin: 0 auto var(--space-8);
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
.stat-item .stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--green-500);
}
.stat-item .stat-label {
  font-size: 1rem;
  color: var(--slate-500);
}
@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Features */
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}
.feature-icon-wrapper {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background-color: var(--slate-100);
  box-shadow: var(--shadow-inset);
}
.feature-icon-wrapper svg {
  width: 24px;
  height: 24px;
  color: var(--green-500);
}

/* ==========================================================================
   #FOOTER
   ========================================================================== */

.site-footer {
  padding: var(--space-12) 0;
  background-color: var(--slate-100);
  border-top: 1px solid var(--slate-200);
}
.site-footer .container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
.footer-column h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.footer-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-column a {
  color: var(--slate-500);
}
.footer-column a:hover {
  color: var(--slate-900);
}
.footer-bottom {
  grid-column: 1 / -1;
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--slate-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--slate-500);
}

@media (min-width: 768px) {
  .site-footer .container {
    grid-template-columns: repeat(5, 1fr);
  }
  .footer-branding {
    grid-column: span 2 / span 2;
  }
}

/* ==========================================================================
   #COMPONENT: Premium Forms
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-700);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: 1rem;
  color: var(--slate-800);
  background-color: var(--white);
  border: 1px solid var(--slate-300);
  border-radius: 0.5rem; /* 8px */
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--slate-400);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}
#agreement {
    width: 1rem;
    height: 1rem;
    accent-color: var(--green-500);
}

/* ==========================================================================
   #COMPONENT: Accordion (for FAQ)
   ========================================================================== */

.faq-section {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--slate-200);
}
.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--space-6) 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
}

.faq-question h3 {
  font-size: 1.125rem; /* 18px */
  font-weight: 600;
  color: var(--slate-800);
  transition: color 0.2s ease;
}

.faq-question:hover h3 {
  color: var(--green-500);
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--slate-400);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--green-500);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-item.active .faq-answer {
  grid-template-rows: 1fr;
}
.faq-answer > div {
  overflow: hidden;
}
.faq-answer p {
  padding-bottom: var(--space-6);
  color: var(--slate-500);
}
.faq-answer p strong {
  color: var(--slate-700);
}

/* ==========================================================================
   #COMPONENT: Clean Table (for Delivery)
   ========================================================================== */
.clean-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.clean-table th,
.clean-table td {
  padding: var(--space-4) 0;
}
.clean-table thead th {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate-500);
  text-transform: uppercase;
  border-bottom: 1px solid var(--slate-300);
}
.clean-table tbody tr {
  border-bottom: 1px solid var(--slate-200);
}
.clean-table tbody tr:last-child {
  border-bottom: none;
}
.clean-table .price-cell {
  font-weight: 600;
  color: var(--slate-800);
  text-align: right;
}

/* ==========================================================================
   #CONTENT: Article & Typography Styles (Corrected)
   ========================================================================== */

.breadcrumbs {
  padding: var(--space-4) 0;
  background-color: var(--slate-100);
  border-bottom: 1px solid var(--slate-200);
  font-size: 0.875rem;
}

.breadcrumbs a {
  color: var(--slate-500);
}

.breadcrumbs a:hover {
  color: var(--slate-900);
}

.breadcrumbs .separator {
  margin: 0 var(--space-2);
  color: var(--slate-400);
}

.breadcrumbs .current {
  color: var(--slate-700);
  font-weight: 500;
}

.article-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px;
}

.article-content h1 {
  font-size: 2.5rem;
  margin-bottom: 1em;
}

.article-content h2 {
  font-size: 1.8rem;
  margin-top: 2em;
  margin-bottom: 1em;
}

.article-content h3 {
  font-size: 1.5rem; /* Slightly smaller for h3 */
  margin-top: 2em;
  margin-bottom: 1em;
}

.article-content p,
.article-content ul,
.article-content ol {
  font-size: 1.1rem;
  line-height: 1.7;
  color: #334155;
  margin-bottom: 1.5em;
}

.article-content ul,
.article-content ol {
  padding-left: 1.5em;
}

.article-content ul li {
  padding-left: 0.5em;
  margin-bottom: 0.5em;
}

/* Custom bullet points */
.article-content ul > li::before {
  content: "•";
  color: var(--green-500);
  font-weight: bold;
  display: inline-block; 
  width: 1em;
  margin-left: -1em;
}

.article-content ol li {
  margin-bottom: 0.5em;
}

.article-content blockquote {
  margin: 2em 0;
  padding: 1.5em;
  border-left: 4px solid var(--slate-200);
  background-color: var(--slate-100);
  border-radius: 0 8px 8px 0;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--slate-600);
}

.article-content blockquote p {
  margin-bottom: 0;
}

.article-content strong {
  color: var(--slate-900);
  font-weight: 600;
}

.article-content img {
    max-width: 100%;
    border-radius: 8px;
    margin: 2em 0;
}