/* Zinu Plan Design System */
:root {
  --bg-cream: #F9F8F3;
  --bg-white: #FFFFFF;
  --bg-dark: #141416;
  --bg-dark-card: #1E1E22;
  --text-dark: #121212;
  --text-light: #F4F4F5;
  --text-muted-dark: #71717A;
  --text-muted-light: #A1A1AA;
  --color-lime: #CEFF1A;
  --color-blue: #2563EB;
  --color-grid: rgba(0, 0, 0, 0.08);
  --color-grid-dark: rgba(255, 255, 255, 0.08);
  --border-light: rgba(0, 0, 0, 0.12);
  --border-dark: rgba(255, 255, 255, 0.15);
  --font-display: 'Syne', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base Styling */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-cream);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography Utilities */
h1, h2, h3, .brand-logo, .hero-header-label {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

/* Container */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Highlighter Text Effect */
.highlight-text {
  background-color: var(--color-lime);
  color: var(--text-dark);
  display: inline;
  padding: 0.05em 0.25em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--text-dark);
  color: var(--bg-cream);
}
.btn-primary:hover {
  background-color: #27272A;
  transform: translateY(-2px);
}

.btn-lime {
  background-color: var(--color-lime);
  color: var(--text-dark);
}
.btn-lime:hover {
  filter: brightness(1.05);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(206, 255, 26, 0.4);
}

.btn-outline {
  border-color: var(--text-dark);
  color: var(--text-dark);
  background: transparent;
}
.btn-outline:hover {
  background-color: var(--text-dark);
  color: var(--bg-cream);
}

.btn-full {
  width: 100%;
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(249, 248, 243, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: background-color var(--transition-fast);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 0.9;
  text-decoration: none;
  color: var(--text-dark);
  font-size: 1.35rem;
}
.brand-logo .logo-top {
  font-size: 1.1rem;
}
.brand-logo .logo-bottom {
  font-size: 1.35rem;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-lime);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}
.mobile-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-dark);
  transition: transform var(--transition-fast);
}

/* Grid Background Pattern Utility */
.grid-bg-pattern {
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, var(--color-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-grid) 1px, transparent 1px);
}

/* Hero Section */
.hero-section {
  padding-top: 140px;
  padding-bottom: 80px;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.hero-header-label {
  font-size: 1.25rem;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.hero-title {
  font-size: clamp(3rem, 7.5vw, 6.5rem);
  line-height: 0.95;
  margin-bottom: 3rem;
}

.hero-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: flex-end;
}

.grid-pattern-box {
  width: 100%;
  height: 250px;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, var(--color-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-grid) 1px, transparent 1px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  overflow: hidden;
}

.hero-minimal-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform var(--transition-normal);
}

.grid-pattern-box:hover .hero-minimal-img {
  transform: scale(1.04);
}

.hero-description-card {
  position: relative;
  padding-left: 2rem;
}

.blue-asterisk-wrapper {
  margin-bottom: 1rem;
}
.blue-asterisk {
  color: var(--color-blue);
  animation: rotateSlow 20s linear infinite;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-description-card p {
  font-size: 1.1rem;
  color: #27272A;
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
}

/* Mission Section */
.mission-section {
  padding: 100px 0;
  border-top: 1px solid var(--border-light);
}

.mission-container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
  align-items: center;
}

.mission-grid-left {
  height: 380px;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, var(--color-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-grid) 1px, transparent 1px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.mission-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform var(--transition-normal);
}

.mission-grid-left:hover .mission-img {
  transform: scale(1.04);
}

.mission-content-right {
  display: flex;
  flex-direction: column;
}

.mission-title-wrapper {
  margin-bottom: 2rem;
}

.target-icon-wrapper {
  margin-bottom: 1rem;
}

.title-our-mission {
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 0.95;
}

.mission-copy {
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.5;
  margin-bottom: 2.5rem;
  max-width: 580px;
}

.right-align {
  align-self: flex-end;
}

/* Values Section */
.values-section {
  padding: 100px 0;
  background-color: var(--bg-cream);
  border-top: 1px solid var(--border-light);
}

.values-header {
  margin-bottom: 4rem;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1;
}

.blue-asterisk-inline {
  color: var(--color-blue);
  font-family: sans-serif;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.value-card {
  display: flex;
  gap: 1.5rem;
  padding: 2rem;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
}

.full-width-card {
  grid-column: 1 / -1;
}

.value-icon-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-blue);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.value-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.value-content p {
  color: #4B5563;
  font-size: 1rem;
}

/* Service Offering Section (Dual Light Header + Obsidian Dark Body) */
.services-section {
  border-top: 1px solid var(--border-light);
}

.services-top-header {
  padding: 80px 0 40px 0;
  background-color: var(--bg-cream);
}

.services-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.services-main-title {
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 0.95;
}

.services-doodle-wrapper {
  max-width: 420px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.services-doodle-img {
  width: 100%;
  max-width: 380px;
  height: auto;
  object-fit: contain;
  background-color: #FFFFFF;
  border-radius: 8px;
  mix-blend-mode: multiply;
}

.services-dark-body {
  background-color: var(--bg-dark);
  color: var(--text-light);
  padding: 80px 0 100px 0;
}

/* Service Tabs */
.service-tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

.tab-btn {
  background: transparent;
  border: 1px solid var(--border-dark);
  color: var(--text-muted-light);
  padding: 0.65rem 1.5rem;
  border-radius: 40px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover, .tab-btn.active {
  background-color: var(--color-lime);
  color: var(--text-dark);
  border-color: var(--color-lime);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.service-card {
  background-color: var(--bg-dark-card);
  padding: 2.5rem 2rem;
  border-radius: 8px;
  border: 1px solid var(--border-dark);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.service-card:hover {
  border-color: var(--color-lime);
  transform: translateY(-4px);
}

.service-divider {
  width: 40px;
  height: 3px;
  background-color: var(--text-light);
  margin-bottom: 1.5rem;
}

.service-title {
  font-size: 1.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-light);
}

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.service-list li {
  position: relative;
  padding-left: 1.5rem;
  color: #D4D4D8;
  font-size: 0.95rem;
}

.service-list li::before {
  content: 'o';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--text-muted-light);
  font-family: monospace;
}

/* Calculator Section */
.calculator-section {
  padding: 100px 0;
  background-color: var(--bg-cream);
  border-top: 1px solid var(--border-light);
}

.calc-header {
  margin-bottom: 3rem;
}

.calc-subtitle {
  font-size: 1.15rem;
  color: #4B5563;
  margin-top: 0.5rem;
}

.calc-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  background: var(--bg-white);
  padding: 3rem;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.04);
}

.calc-group {
  margin-bottom: 2rem;
}

.calc-label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.85rem;
  font-size: 1rem;
}

.calc-checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.calc-checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-size: 0.95rem;
}

.calc-checkbox-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--text-dark);
}

.calc-slider {
  width: 100%;
  accent-color: var(--text-dark);
}

.calc-select {
  width: 100%;
  padding: 0.85rem;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.calc-result-box {
  background-color: var(--bg-dark);
  color: var(--text-light);
  padding: 2.5rem;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.result-label {
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--text-muted-light);
  margin-bottom: 0.5rem;
}

.result-amount {
  font-family: var(--font-display);
  font-size: 2.25rem;
  color: var(--color-lime);
  margin-bottom: 1rem;
}

.result-note {
  font-size: 0.8rem;
  color: var(--text-muted-light);
  margin-bottom: 2rem;
}

/* Contact Section */
.contact-section {
  padding: 100px 0;
  background-color: var(--bg-cream);
  border-top: 1px solid var(--border-light);
}

.contact-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.contact-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1;
  margin-bottom: 1.5rem;
}

.contact-info p {
  font-size: 1.1rem;
  color: #4B5563;
  margin-bottom: 2.5rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 600;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
}

.form-group input, .form-group textarea {
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 1rem;
  background-color: var(--bg-white);
  transition: border-color var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--text-dark);
}

.form-feedback {
  margin-top: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
}

/* Modal Styling */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-cream);
  padding: 3rem;
  border-radius: 8px;
  max-width: 480px;
  width: 90%;
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-fast);
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
}

.modal-card h3 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.modal-card p {
  color: #4B5563;
  margin-bottom: 1.5rem;
}

/* Footer */
.site-footer {
  padding: 50px 0;
  background-color: var(--bg-dark);
  color: var(--text-light);
}

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

.footer-brand p {
  color: var(--text-muted-light);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-muted-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-lime);
}

.back-to-top {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-dark-card);
  color: var(--text-light);
  border: 1px solid var(--border-dark);
  cursor: pointer;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.back-to-top:hover {
  background-color: var(--color-lime);
  color: var(--text-dark);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-content-grid, .mission-container, .contact-box, .calc-card {
    grid-template-columns: 1fr;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .mission-grid-left {
    height: 240px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background-color: var(--bg-cream);
    padding: 2rem;
    border-bottom: 1px solid var(--border-light);
    display: none;
  }
  .main-nav.active {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 1.5rem;
  }
  .mobile-toggle {
    display: flex;
  }
  .values-grid, .services-grid, .calc-checkbox-grid {
    grid-template-columns: 1fr;
  }
  .footer-container {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }
}