/* ============================================
   ED TECH CONSULTANCY - CLEAN MINIMAL EDITORIAL
   Inspired by refined, sophisticated aesthetic
   ============================================ */

/* ============================================
   CSS VARIABLES & COLOR PALETTE
   ============================================ */
:root {
  /* Colors - refined palette */
  --color-bg-primary: #f5f3f0;        /* Light beige/pink */
  --color-bg-secondary: #ffffff;      /* Pure white */
  --color-text-primary: #2c2c2c;      /* Dark grey */
  --color-text-secondary: #9a9a9a;   /* Light grey */
  --color-accent-red: #c73e3e;        /* Red for accents */
  --color-accent-red-dark: #a02e2e;   
  --color-border: #e0ddd8;            
  --color-status-green: #4a9b4a;      /* Status indicator */
  
  /* Typography - refined */
  --font-serif: 'Playfair Display', 'Georgia', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing - generous */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-xxl: 10rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.4s ease;
  --transition-slow: 0.8s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
  font-weight: 300;
  letter-spacing: 0.01em;
}

/* ============================================
   TYPOGRAPHY - REFINED
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.1;
  color: var(--color-accent-red);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(3rem, 8vw, 7rem);
  margin-bottom: var(--spacing-md);
  line-height: 1;
  font-weight: 400;
}

h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
  font-weight: 400;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: var(--spacing-sm);
  font-weight: 400;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 300;
}

a {
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-weight: 300;
}

a:hover {
  color: var(--color-accent-red);
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xxl) 0;
  position: relative;
}

.section-alt {
  background-color: var(--color-bg-secondary);
}

/* ============================================
   NAVIGATION - MINIMAL
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: transparent;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background-color: rgba(245, 243, 240, 0.95);
  backdrop-filter: blur(10px);
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-accent-red);
  letter-spacing: 0.02em;
}

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

.navbar-menu a {
  font-size: 0.7rem;
  font-weight: 300;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: var(--spacing-xs) 0;
  position: relative;
}

.navbar-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent-red);
  transition: width var(--transition-fast);
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
  width: 100%;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-primary);
}

/* Status Indicator */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-status-green);
  display: inline-block;
  margin-right: var(--spacing-xs);
}

/* Vertical Text */
.vertical-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-weight: 300;
  white-space: nowrap;
  position: absolute;
}

.vertical-text-left {
  left: 2rem;
  top: 50%;
  transform: translateY(-50%);
}

.vertical-text-right {
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
}

/* ============================================
   HERO SECTION - CENTRAL IMAGE WITH OVERLAY
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--spacing-xl) var(--spacing-md);
  overflow: hidden;
}

.hero-content {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  position: relative;
}

.hero-image-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  overflow: visible;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-container img {
  width: 100%;
  max-width: 800px;
  height: auto;
  display: block;
  transform: translateZ(0);
  will-change: transform;
  object-fit: cover;
}

.hero-overlay-text {
  position: absolute;
  top: 10%;
  right: 5%;
  font-family: var(--font-serif);
  font-size: clamp(5rem, 15vw, 12rem);
  font-weight: 400;
  color: var(--color-accent-red);
  line-height: 0.85;
  letter-spacing: -0.03em;
  z-index: 2;
  pointer-events: none;
  opacity: 0.9;
}

.hero-text {
  position: absolute;
  bottom: 10%;
  left: 5%;
  z-index: 3;
  max-width: 500px;
  background-color: rgba(245, 243, 240, 0.8);
  padding: var(--spacing-lg);
  backdrop-filter: blur(10px);
}

.hero-text h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
  font-weight: 300;
}

.hero-text p {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--color-text-primary);
  font-weight: 300;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
}

/* ============================================
   BUTTONS - MINIMAL
   ============================================ */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border: 1px solid var(--color-text-primary);
  background-color: transparent;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
  border-radius: 0;
  text-align: center;
}

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

.btn-outline {
  border-color: var(--color-accent-red);
  color: var(--color-accent-red);
}

.btn-outline:hover {
  background-color: var(--color-accent-red);
  color: white;
}

/* ============================================
   CARDS - MINIMAL
   ============================================ */
.card {
  background-color: transparent;
  padding: var(--spacing-lg);
  border-radius: 0;
  box-shadow: none;
  transition: all var(--transition-normal);
  border: none;
  border-left: 1px solid transparent;
  height: 100%;
}

.card:hover {
  transform: translateY(-4px);
  border-left-color: var(--color-accent-red);
}

.card-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  color: var(--color-accent-red);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
  font-weight: 400;
}

.card-content {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 300;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

/* ============================================
   PARALLAX SECTIONS
   ============================================ */
.parallax-section {
  position: relative;
  overflow: hidden;
  padding: var(--spacing-xxl) 0;
}

.parallax-bg {
  position: absolute;
  top: -50%;
  left: 0;
  width: 100%;
  height: 200%;
  background: linear-gradient(135deg, rgba(199, 62, 62, 0.01) 0%, rgba(245, 243, 240, 1) 100%);
  will-change: transform;
}

.parallax-content {
  position: relative;
  z-index: 1;
}

.parallax-image {
  will-change: transform;
  transform: translateZ(0);
}

/* ============================================
   TOOL CARDS
   ============================================ */
.tool-card {
  background-color: transparent;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
  transition: all var(--transition-normal);
  border: none;
  border-left: 1px solid transparent;
}

.tool-card:hover {
  transform: translateY(-4px);
  border-left-color: var(--color-accent-red);
}

.tool-card-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  background-color: var(--color-bg-primary);
}

.tool-card-content {
  padding: var(--spacing-lg) 0;
}

.tool-card-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--color-accent-red);
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
  font-weight: 400;
}

.tool-card-features {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.tool-card-features li {
  padding: var(--spacing-xs) 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 300;
}

.tool-card-features li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent-red);
  font-weight: 300;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonial {
  background-color: transparent;
  padding: var(--spacing-lg);
  border-radius: 0;
  border-left: 1px solid var(--color-accent-red);
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.testimonial-quote {
  font-size: clamp(1.1rem, 1.5vw, 1.3rem);
  font-style: italic;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
  font-weight: 300;
}

.testimonial-author {
  font-weight: 300;
  color: var(--color-accent-red);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 300;
  color: var(--color-text-primary);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
  font-weight: 300;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent-red);
  box-shadow: none;
}

.form-textarea {
  min-height: 200px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.checkbox-item input[type="checkbox"] {
  width: auto;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-color: var(--color-text-primary);
  color: white;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-xxl);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.footer-section h3 {
  color: white;
  margin-bottom: var(--spacing-md);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 400;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-xs);
  font-weight: 300;
}

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

.footer-signature {
  max-width: 150px;
  margin-top: var(--spacing-md);
  filter: brightness(0) invert(1);
  opacity: 0.7;
}

.footer-bottom {
  max-width: 1400px;
  margin: var(--spacing-lg) auto 0;
  padding: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  display: block;
  width: 100%;
  clear: both;
}

.footer-bottom p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-bottom a:hover {
  color: rgba(255, 255, 255, 1);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease-out forwards;
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
  text-align: center;
}

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .vertical-text {
    display: none;
  }
}

@media (max-width: 768px) {
  .navbar-menu {
    position: fixed;
    top: 60px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 60px);
    background-color: var(--color-bg-primary);
    flex-direction: column;
    padding: var(--spacing-lg);
    transition: left var(--transition-normal);
    border-top: 1px solid var(--color-border);
  }

  .navbar-menu.active {
    left: 0;
  }

  .navbar-toggle {
    display: block;
  }

  .hero {
    min-height: auto;
    padding: var(--spacing-md);
  }

  .hero-content {
    text-align: left;
  }

  .hero-image-container {
    min-height: auto;
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-overlay-text {
    display: none;
  }

  .hero-text {
    position: relative;
    bottom: auto;
    left: auto;
    max-width: 100%;
    padding: var(--spacing-md) 0;
    background-color: transparent;
  }

  .hero-text h1 {
    font-size: clamp(1.8rem, 6vw, 3rem);
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

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

  h1 {
    font-size: clamp(2rem, 7vw, 4rem);
  }

  h2 {
    font-size: clamp(1.8rem, 6vw, 3rem);
  }

  h3 {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }

  .tool-card > div[style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  .tool-card > div[style*="order: 2"] {
    order: 1 !important;
  }

  .tool-card > div[style*="order: 1"] {
    order: 2 !important;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    text-align: center;
  }

  .btn {
    width: 100%;
    padding: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 4rem;
  }

  .btn {
    padding: 0.9rem 1.5rem;
    font-size: 0.65rem;
  }

  .hero {
    min-height: 70vh;
    padding: var(--spacing-sm);
  }

  .hero-image-container {
    min-height: 300px;
  }

  .hero-overlay-text {
    font-size: clamp(2.5rem, 12vw, 5rem);
  }

  .hero-text {
    padding: var(--spacing-sm);
  }

  .hero-text h1 {
    font-size: clamp(1.5rem, 7vw, 2.5rem);
    margin-bottom: var(--spacing-sm);
  }

  .hero-text p {
    font-size: 0.95rem;
  }

  .navbar-brand {
    font-size: 1rem;
  }

  .navbar-menu {
    gap: var(--spacing-md);
  }

  .navbar-menu a {
    font-size: 0.65rem;
  }

  .card {
    padding: var(--spacing-md);
  }

  .tool-card-content {
    padding: var(--spacing-md) 0;
  }

  .testimonial {
    padding: var(--spacing-md);
  }

  .form-input,
  .form-textarea,
  .form-select {
    padding: 0.8rem;
    font-size: 0.95rem;
  }
}