/* Global Styles and Shared Components for GoDo SaaS Website */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ── 1. Resets & Core Styles ────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  width: 100%;
  overflow-x: hidden;
  line-height: 1.6;
  min-width: 0;
}

img,
picture,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ── 2. Typography ────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-title);
  font-weight: var(--font-weight-bold);
  line-height: 1.25;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3.5rem;
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.04em;
  line-height: 1.1;
}

h2 {
  font-size: 2.25rem;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

p {
  font-size: 1.05rem;
  line-height: 1.625;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-body);
}

p.lead {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

a {
  color: var(--color-action);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* ── 3. Layout Utilities ────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width-desktop);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-xl);
  padding-right: var(--spacing-xl);
}

.section {
  padding: var(--spacing-4xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.section-subtle {
  background-color: var(--color-subtle-section);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-2xl);
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.text-center {
  text-align: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-personal { background-color: var(--badge-personal-bg); color: var(--badge-personal-text); }
.badge-finance { background-color: var(--badge-finance-bg); color: var(--badge-finance-text); }
.badge-fitness { background-color: var(--badge-fitness-bg); color: var(--badge-fitness-text); }
.badge-work { background-color: var(--badge-work-bg); color: var(--badge-work-text); }

/* ── 4. Interactive Components ────────────────────────────── */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  font-size: 0.95rem;
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  gap: var(--spacing-xs);
}

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

.btn-primary:hover {
  background-color: var(--color-action-hover);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 129, 167, 0.2);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-secondary:hover {
  background-color: var(--color-subtle-section);
  border-color: var(--color-text-light);
  transform: translateY(-1px);
}

.btn-badge {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

/* Header/Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar-scrolled {
  box-shadow: var(--shadow-sm);
  background-color: rgba(255, 255, 255, 0.95);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: var(--font-weight-extrabold);
  font-size: 1.45rem;
  color: var(--color-text-title);
  letter-spacing: -0.02em;
}

.brand-logo {
  height: 52px;
  width: 52px;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav-link {
  color: var(--color-text-title);
  font-weight: var(--font-weight-medium);
  font-size: 0.95rem;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-action);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-action);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.active {
  color: var(--color-action);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-title);
  margin: 5px 0;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Mobile Nav Drawer */
.mobile-nav {
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  height: calc(100vh - 72px);
  height: calc(100dvh - 72px);
  background-color: var(--color-bg);
  z-index: 999;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  box-shadow: -8px 0 32px rgba(27, 73, 101, 0.08);
  border-left: 1px solid var(--color-border);
  visibility: hidden;
}

.mobile-nav.open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-nav-overlay {
  position: fixed;
  inset: 72px 0 0 0;
  background-color: rgba(27, 73, 101, 0.35);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  border: none;
  padding: 0;
  cursor: pointer;
}

.mobile-nav-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav .nav-menu {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.mobile-nav .nav-actions {
  display: flex;
}

.mobile-nav .nav-link {
  font-size: 1.2rem;
  width: 100%;
}

.mobile-nav .nav-actions {
  flex-direction: column;
  width: 100%;
  gap: var(--spacing-md);
}

.mobile-nav .btn {
  width: 100%;
}

/* Footer Section */
.footer {
  background-color: var(--color-bg);
  padding: var(--spacing-4xl) 0 var(--spacing-2xl);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 320px;
}

.footer-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.footer-socials {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-subtle-section);
  color: var(--color-text-title);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.social-link svg {
  width: 18px;
  height: 18px;
  display: block;
}

.social-link:hover {
  background-color: var(--color-action-light);
  color: var(--color-action);
  border-color: var(--color-action);
  transform: translateY(-2px);
}

.footer-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-title);
  margin-bottom: var(--spacing-lg);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-link {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-action);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  font-size: 0.88rem;
  color: var(--color-text-light);
}

/* ── 5. Scroll Animations & Effects ────────────────────────── */
.fade-in-section {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── 6. Responsive Breaks ──────────────────────────────────── */
@media (max-width: 992px) {
  h1 { font-size: 2.75rem; }
  h2 { font-size: 1.85rem; }
  .grid-3 { grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); }
  .grid-4 { grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); }
}

@media (max-width: 768px) {
  .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }

  .section {
    padding: var(--spacing-3xl) 0;
  }

  h1 { font-size: 2.15rem; letter-spacing: -0.03em; }
  h2 { font-size: 1.6rem; }
  h3 { font-size: 1.25rem; }
  p { font-size: 1rem; }
  p.lead { font-size: 1.08rem; }

  .grid-2 { grid-template-columns: 1fr; gap: var(--spacing-xl); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; gap: var(--spacing-lg); }

  .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.92rem;
  }

  .navbar .container > nav,
  .navbar .container > .nav-actions { display: none; }
  .menu-toggle { display: block; }

  .brand { font-size: 1.3rem; }
  .brand-logo { height: 44px; width: 44px; }

  .footer {
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
  }

  .footer-brand {
    max-width: none;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    gap: var(--spacing-sm);
  }

  .navbar-toggle-active .menu-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .navbar-toggle-active .menu-toggle span:nth-child(2) {
    opacity: 0;
  }
  .navbar-toggle-active .menu-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

  h1 { font-size: 1.85rem; }
  h2 { font-size: 1.4rem; }
  p.lead { font-size: 1rem; }

  .mobile-nav {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .mobile-nav .nav-link {
    font-size: 1.05rem;
  }
}