/* ===== CSS Variables ===== */
:root {
  /* Colors - matching humanscaledigitalsolutions.com */
  --color-primary: #3E797C;
  --color-primary-dark: #2d5a5c;
  --color-primary-light: #e8f2f2;
  --color-text: #1a1a1a;
  --color-text-secondary: #525252;
  --color-text-muted: #737373;
  --color-bg: #ffffff;
  --color-bg-alt: #fafafa;
  --color-bg-dark: #0f172a;
  --color-accent: #5fb8bb;
  --color-border: #e5e5e5;
  
  /* Typography - matching humanscaledigitalsolutions.com */
  --font-sans: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing Scale (8px base) */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.5rem;    /* 24px */
  --space-6: 2rem;      /* 32px */
  --space-8: 3rem;      /* 48px */
  --space-10: 4rem;     /* 64px */
  --space-12: 5rem;     /* 80px */
  --space-16: 7rem;     /* 112px */
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Layout */
  --max-width: 1200px;
  --max-width-content: 720px;
  --max-width-narrow: 560px;
}

/* ===== Utility ===== */
.mobile-break { display: inline; }
@media (min-width: 768px) { .mobile-break { display: none; } }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography Scale ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.2;
}

h3 {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  line-height: 1.3;
}

p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

.lead {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

strong {
  color: var(--color-text);
  font-weight: 600;
}

ul {
  list-style: none;
}

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

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

section {
  padding: var(--space-12) 0;
}

@media (min-width: 768px) {
  section {
    padding: var(--space-16) 0;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 1px 2px rgba(62, 121, 124, 0.2);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(62, 121, 124, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.btn-large {
  padding: var(--space-4) var(--space-6);
  font-size: 1rem;
}

.btn-nav {
  padding: var(--space-2) var(--space-4);
  font-size: 0.875rem;
}

.nav-links .btn-primary {
  color: white;
}

.nav-links .btn-primary:hover {
  color: white;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
  z-index: 1000;
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-4) var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media (min-width: 768px) {
  .nav-container {
    padding: var(--space-4) var(--space-8);
  }
}

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 40px;
  width: auto;
}

@media (min-width: 768px) {
  .logo-img {
    height: 50px;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links a {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--color-text);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.2s ease;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--space-5);
    gap: var(--space-4);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-links .btn {
    width: 100%;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
}

/* ===== Hero Section ===== */
.hero {
  padding-top: 80px; /* nav height */
  margin: 0;
  padding-bottom: 0;
  background: #e8f2f2;
}

.hero-layout {
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  .hero-layout {
    flex-direction: row;
    min-height: calc(100vh - 80px);
  }
}

.hero-text {
  background: linear-gradient(180deg, var(--color-primary-light) 0%, #f0f7f7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-5);
  text-align: center;
}

@media (min-width: 768px) {
  .hero-text {
    flex: 1 1 50%;
    padding: var(--space-12) var(--space-8);
    text-align: left;
  }
}

.hero-text-inner {
  max-width: 520px;
}

.hero h1 {
  margin-bottom: var(--space-5);
  font-size: clamp(2rem, 5vw, 3rem);
  text-wrap: balance;
}

.hero-sub {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-8);
  text-wrap: balance;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

@media (min-width: 768px) {
  .hero-cta {
    justify-content: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta .btn {
    width: 100%;
    max-width: 280px;
  }
}

.hero-image img {
  width: 100%;
  display: block;
}

@media (min-width: 768px) {
  .hero-image {
    flex: 1 1 50%;
  }

  .hero-image img {
    height: 100%;
    object-fit: cover;
  }
}

/* ===== Stakes Section ===== */
.stakes {
  background: #e8f2f2;
  padding-top: var(--space-8);
}

@media (min-width: 768px) {
  .stakes {
    padding-top: var(--space-10);
  }
}

.stakes h2 {
  text-align: center;
  margin-bottom: var(--space-8);
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .stakes h2 {
    margin-bottom: var(--space-10);
  }
}

.stakes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .stakes-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

.stake-card {
  padding: var(--space-6);
  background: var(--color-bg-alt);
  border-radius: var(--radius-xl);
  text-align: center;
}

.stake-icon {
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.stake-icon svg {
  width: 40px;
  height: 40px;
}

.stake-card h3 {
  margin-bottom: var(--space-3);
}

.stake-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ===== Guide Section ===== */
.guide {
  background: var(--color-bg-alt);
}

.guide-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

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

.guide-photo img {
  width: 100%;
  max-width: 280px;
  border-radius: 50%;
  object-fit: cover;
  aspect-ratio: 1;
}

.guide-text {
  max-width: 600px;
}

.guide-text h2 {
  margin-bottom: var(--space-6);
}

.guide-text p {
  font-size: 1.0625rem;
  line-height: 1.75;
  margin-bottom: var(--space-5);
}

.guide-text p:last-of-type {
  margin-bottom: 0;
}

.guide-text h3 {
  font-family: var(--font-sans);
  color: var(--color-primary);
  margin-top: var(--space-8);
  margin-bottom: var(--space-5);
  font-size: 1.5rem;
}

/* ===== Plan Section ===== */
.plan {
  background: var(--color-bg);
}

.plan h2 {
  text-align: center;
  margin-bottom: var(--space-8);
  text-wrap: balance;
}

@media (min-width: 768px) {
  .plan h2 {
    margin-bottom: var(--space-10);
    white-space: nowrap;
    text-wrap: nowrap;
  }
}

.plan-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
  .plan-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

@media (min-width: 768px) {
  .plan-grid {
    margin-bottom: var(--space-10);
  }
}

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

.step-number {
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0 auto var(--space-5);
  font-family: var(--font-sans);
}

.plan-step h3 {
  margin-bottom: var(--space-3);
}

.plan-step p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 280px;
  margin: 0 auto;
}

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

/* ===== Services Section ===== */
.services {
  background: var(--color-bg-alt);
}

.services h2 {
  text-align: center;
  margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
  .services h2 {
    margin-bottom: var(--space-10);
  }
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

.service-card {
  background: white;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .service-card {
    padding: var(--space-8);
  }
}

.service-icon {
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.service-icon svg {
  width: 36px;
  height: 36px;
}

.service-card h3 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  margin-bottom: var(--space-3);
}

.service-card > p {
  font-size: 0.9375rem;
  margin-bottom: var(--space-5);
}

.service-card ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-card li {
  padding-left: var(--space-5);
  position: relative;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.service-card li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 500;
}



/* ===== Success Section ===== */
.success {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

.success h2 {
  text-align: center;
  margin-bottom: var(--space-8);
  color: white;
}

@media (min-width: 768px) {
  .success h2 {
    margin-bottom: var(--space-10);
  }
}

.success-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  max-width: 800px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .success-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.success-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
}

.checkmark {
  font-size: 1.25rem;
  color: var(--color-accent);
  flex-shrink: 0;
}

.success-item p {
  font-size: 1rem;
  color: white;
  margin: 0;
}

/* ===== CTA Section ===== */
.cta {
  background: var(--color-bg);
  padding: var(--space-16) 0;
}

@media (min-width: 768px) {
  .cta {
    padding: 8rem 0;
  }
}

.cta-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .cta-layout {
    grid-template-columns: auto 1fr;
    gap: var(--space-10);
    align-items: start;
  }
}

.cta-image {
  text-align: center;
  display: flex;
  justify-content: center;
}

.cta-image img {
  width: auto;
  max-width: 260px;
  max-height: 380px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin: 0 auto;
}

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

@media (min-width: 768px) {
  .cta-content {
    text-align: left;
  }
}

.cta-content h2 {
  margin-bottom: var(--space-5);
}

.cta-content > p {
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.cta-content .btn-large {
  margin-bottom: var(--space-5);
}

.cta-note {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Form Confirmation */
.form-confirmation {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 280px;
}

.confirmation-icon {
  color: var(--color-primary);
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-5);
}

.form-confirmation h3 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 1.75rem);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.form-confirmation p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: white;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(62, 121, 124, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form .btn {
  align-self: flex-start;
}

@media (max-width: 768px) {
  .contact-form .btn {
    width: 100%;
  }
}

/* ===== Footer ===== */
.footer {
  padding: var(--space-10) 0 var(--space-6);
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
  .footer-content {
    grid-template-columns: 2fr 1fr;
  }
}

.footer-brand h4,
.footer-links h4 {
  color: white;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9375rem;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.4);
  margin: 0;
}

/* ===== Animations ===== */
@media (prefers-reduced-motion: no-preference) {
  .stake-card,
  .plan-step,
  .service-card,
  .success-item,
  .portfolio-card {
    opacity: 0;
    transform: translateY(16px);
    animation: fadeInUp 0.5s ease forwards;
  }
  
  .stake-card:nth-child(1),
  .plan-step:nth-child(1) { animation-delay: 0.1s; }
  .stake-card:nth-child(2),
  .plan-step:nth-child(2) { animation-delay: 0.2s; }
  .stake-card:nth-child(3),
  .plan-step:nth-child(3) { animation-delay: 0.3s; }
  
  .service-card:nth-child(1),
  .portfolio-card:nth-child(1) { animation-delay: 0.1s; }
  .service-card:nth-child(2),
  .portfolio-card:nth-child(2) { animation-delay: 0.2s; }
  .portfolio-card:nth-child(3) { animation-delay: 0.3s; }
  .portfolio-card:nth-child(4) { animation-delay: 0.4s; }
  
  @keyframes fadeInUp {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* ===== Focus States (Accessibility) ===== */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== Portfolio Page ===== */

.portfolio-hero {
  background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
  padding: calc(80px + var(--space-8)) var(--space-5) var(--space-8);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 768px) {
  .portfolio-hero {
    padding: calc(80px + var(--space-10)) var(--space-8) var(--space-10);
  }
}

.portfolio-hero h1 {
  margin-bottom: var(--space-4);
  font-size: clamp(2rem, 5vw, 2.75rem);
}

.portfolio-hero .hero-sub {
  max-width: 520px;
  margin: 0 auto;
  text-wrap: balance;
}

section.portfolio {
  padding-top: var(--space-6);
}

@media (min-width: 768px) {
  section.portfolio {
    padding-top: var(--space-8);
  }
}

.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.portfolio-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.portfolio-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.3s ease;
}

.portfolio-card:hover .portfolio-image img {
  transform: scale(1.03);
}


.portfolio-content {
  padding: var(--space-5) var(--space-6) var(--space-6);
}

.portfolio-content h3 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.portfolio-type {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-3) !important;
}

.portfolio-content > p:not(.portfolio-type) {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.portfolio-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
}

.portfolio-link:hover {
  color: var(--color-primary-dark);
}

.portfolio-link svg {
  transition: transform 0.15s ease;
}

.portfolio-link:hover svg {
  transform: translate(2px, -2px);
}

.portfolio-cta-centered {
  text-align: center;
  max-width: 520px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .portfolio-cta-centered {
    max-width: 700px;
  }
}

.portfolio-cta-centered h2 {
  margin-bottom: var(--space-4);
}

.portfolio-cta-centered > p {
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

/* ===== Selection ===== */
::selection {
  background: var(--color-primary);
  color: white;
}