:root {
  --bg-dark: #020b0d;
  --accent: #14e2a4;
  --text-light: #ffffff;

  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 32px;
  --space-xl: 64px;

  --font-sm: 14px;
  --font-md: 16px;
  --font-lg: 20px;
  --font-xl: 28px;
  --font-xxl: 48px;

  --max-width: 1440px;
  --container-padding: var(--space-md);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.page {
  opacity: 0;
  transform: translateY(20px);
  animation: pageFadeIn 0.8s ease-out forwards;
}

@keyframes pageFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-light);
}
body.no-scroll {
  overflow: hidden;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  text-align: center;
}

a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
.navbar {
  padding-block: 1rem;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 4rem;
}

.logo {
  width: 36px;
  height: 36px;
}

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

.nav-links a {
  font-size: 1rem;
  color: #aaa;
  position: relative;
  text-decoration: none;
  font-family: "Space Grotesk", sans-serif;
}

.nav-links a:hover {
  color: #fff;
}

.hero {
  min-height: 100vh;
  text-align: center;
  background: var(--bg-dark) url("../Images/hero_background.png") no-repeat
    center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 40px;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.hero-title {
  font-family: "Orbitron", sans-serif;
  font-size: var(--font-xxl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-light);
  letter-spacing: 0.1rem;
}

.hero-title .accent {
  color: var(--accent);
}

.hero-subtitle {
  font-size: var(--font-lg);
  font-weight: 400;
  line-height: 1.4;
  margin-bottom: var(--space-xl);
}

.hero-subtitle .accent {
  color: var(--accent);
  font-weight: 500;
}
.overview {
  padding: var(--space-xl) var(--space-md);
  background: #fbfcfc;
  color: #111;
  text-align: center;
}

.overview-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  background: rgba(20, 226, 164, 0.15);
  color: var(--accent);
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.overview-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.overview-title .accent {
  color: var(--accent);
}

.overview-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  text-align: left;
}

.overview-item {
  flex: 1;
}

.overview-subtitle {
  font-size: var(--font-md);
  font-weight: 600;
  color: #111;
  position: relative;
  padding-left: 14px;

  margin-bottom: var(--space-sm);
}

.overview-subtitle::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 60%;
  background: var(--accent);
  border-radius: 2px;
}

.overview-text {
  font-size: var(--font-md);
  line-height: 1.8;
  margin-bottom: var(--space-md);
  color: #333;
}

.overview-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.overview-card {
  background: #fff;
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
}

.overview-card img {
  width: 40px;
  margin-bottom: var(--space-md);
}

.overview-card h4 {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: #111;
}

.overview-card p {
  font-size: var(--font-md);
  color: #333;
}

.icon {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(20, 226, 164, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md) auto;
}

.icon svg {
  width: 48px;
  height: 48px;
  stroke: var(--accent);
  stroke-width: 2;
}

.problem {
  padding: var(--space-xl) var(--space-md);
  background: linear-gradient(180deg, #0a7f6b 0%, #0f9e82 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.problem::before,
.problem::after {
  content: "";
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.problem::before {
  width: 120px;
  height: 120px;
  top: 10%;
  left: -80px;
}

.problem::after {
  width: 140px;
  height: 140px;
  bottom: 1%;
  right: -100px;
}

.problem-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.problem-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.problem-subtitle {
  font-size: var(--font-md);
  font-weight: 400;
  margin-bottom: var(--space-lg);
  opacity: 0.9;
}

.problem-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: var(--space-lg);
  text-align: left;
  max-width: 1440px;
  margin: 0 auto;
}

.problem-box p {
  margin-bottom: var(--space-md);
  line-height: 1.8;
  font-size: var(--font-md);
  color: #f8f8f8;
  position: relative;
  padding-bottom: var(--space-md);
  text-align: center;
}
.problem-box p:last-child {
  margin-bottom: 0;
}
.problem-box p:nth-child(1)::after,
.problem-box p:nth-child(2)::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 2px;
}

.process {
  padding: var(--space-xl) var(--space-md);
  background: #fff;
  text-align: center;
}

.process-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  background: rgba(20, 226, 164, 0.1);
  color: var(--accent);
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.process-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: #111;
}

.process-subtitle {
  font-size: var(--font-md);
  color: #333;
  margin-bottom: var(--space-lg);
}

.process-cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
}

.process-card {
  border-radius: 16px;
  padding: var(--space-lg) var(--space-md);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  color: #fff;
}

.process-card .icon {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin: 0 auto var(--space-md) auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.2);
}

.process-card .icon svg {
  width: 48px;
  height: 48px;
  stroke: #fff;
  stroke-width: 2.2;
}

.process-card h4 {
  font-size: var(--font-lg);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.process-card span {
  display: inline-block;
  font-size: var(--font-md);
  background: rgba(255, 255, 255, 0.2);
  padding: 4px 10px;
  border-radius: 12px;
  color: #fff;
}

.process-card:nth-child(1) {
  background: linear-gradient(135deg, #ff6a88, #ff99ac);
}

.process-card:nth-child(2) {
  background: linear-gradient(135deg, #667eea, #764ba2);
}

.process-card:nth-child(3) {
  background: linear-gradient(135deg, #f7971e, #ffd200);
}

.process-card:nth-child(4) {
  background: linear-gradient(135deg, #11998e, #38ef7d);
}

.process-card:nth-child(5) {
  background: linear-gradient(135deg, #36d1dc, #5b86e5);
}

.research {
  padding: var(--space-xl) var(--space-md);
  background: linear-gradient(180deg, #0a7f6b 0%, #0f9e82 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.research::before,
.research::after {
  content: "";
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.research::before {
  width: 120px;
  height: 120px;
  top: 10%;
  left: -80px;
}

.research::after {
  width: 140px;
  height: 140px;
  bottom: 11%;
  right: -100px;
}

.research-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.research-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.research-subtitle {
  font-size: var(--font-md);
  opacity: 0.9;
  margin-bottom: var(--space-lg);
}

.research-summary {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: var(--space-lg);
  max-width: 1440px;
  margin: 0 auto var(--space-xl) auto;
}

.research-summary p {
  font-size: var(--font-md);
  line-height: 2;
  text-align: center;
}

.research-heading {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.research-desc {
  font-size: var(--font-md);
  max-width: 800px;
  margin: 0 auto var(--space-lg) auto;
  font-weight: 400;
  opacity: 0.9;
}

.research-questions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  max-width: 1200px;
  margin: 0 auto;
}

.question-card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: var(--space-md);
  text-align: left;
  font-size: var(--font-md);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.question-card span {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  font-weight: 600;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.personas {
  padding: var(--space-xl) var(--space-md);
  background: #fff;
  text-align: center;
}

.personas-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  background: rgba(20, 226, 164, 0.1);
  color: var(--accent);
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.personas-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: #111;
}

.personas-subtitle {
  font-size: var(--font-md);
  color: #444;
  margin-bottom: var(--space-lg);
}
.persona-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.persona-left h4 {
  color: #111;
}
.persona-info p {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 10px;
  font-size: var(--font-sm);
  color: #111;
  text-align: center;
  margin: 0;
  white-space: wrap;
}

.persona-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-lg);
  background: #fff;
  border: 1px solid #eee;
  border-radius: 16px;
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  text-align: left;
}

.persona-left {
  background: #eef7f6;
  border-radius: 12px;
  padding: var(--space-md);
   display: flex;
  flex-direction: column;
  text-align: center;
  align-items: center;
  justify-content: start;
}

.persona-img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--space-sm);
}

.persona-left h4 {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.persona-role {
  font-size: var(--font-sm);
  color: #555;
  margin-bottom: var(--space-md);
}

.persona-info p {
  font-size: var(--font-sm);
  margin-bottom: var(--space-sm);
}

.persona-right .persona-bio {
  margin-bottom: var(--space-md);
  font-size: var(--font-md);
  color: #333;
  line-height: 1.6;
}

.persona-section {
  margin-bottom: var(--space-md);
  border-radius: 12px;
  padding: var(--space-md);
}

.persona-section h5 {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.persona-section ul {
  list-style: disc inside;
  font-size: var(--font-sm);
  line-height: 1.8;
}

.persona-section.goals {
  background: #e6f7ec;
  color: #0a6b32;
}

.persona-section.frustrations {
  background: #fdeaea;
  color: #9b1c1c;
}

.persona-section.needs {
  background: #e8f1fb;
  color: #123c7a;
}

.persona-insights {
  background: #e8fdf6;
  border-radius: 12px;
  padding: var(--space-lg);
  text-align: center;
  margin: 0 auto;
}

.persona-insights h4 {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: #111;
}

.persona-insights p {
  font-size: var(--font-md);
  color: #333;
  line-height: 1.8;
}

.architecture {
  padding: var(--space-xl) var(--space-md);
  background: linear-gradient(180deg, #0a7f6b 0%, #0f9e82 100%);
  text-align: center;
  color: #fff;
}

.architecture-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.architecture-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.architecture-subtitle {
  font-size: var(--font-md);
  opacity: 0.9;
  margin-bottom: var(--space-lg);
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.step-card {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 16px;
  padding: var(--space-md);
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.step-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md) auto;
  color: #fff;
}

.step-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
  stroke-width: 2.2;
}

.step1 {
  background: linear-gradient(135deg, #0052d4, #5c78f1);
}
.step2 {
  background: linear-gradient(135deg, #11998e, #38ef7d);
}
.step3 {
  background: linear-gradient(135deg, #f7971e, #ffd200);
}
.step4 {
  background: linear-gradient(135deg, #6a11cb, #2575fc);
}
.step5 {
  background: linear-gradient(135deg, #ff416c, #ff4b2b);
}

.step-card h4 {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: #111;
}

.step-card p {
  font-size: var(--font-sm);
  margin-bottom: var(--space-md);
  color: #444;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.tags span {
  font-size: var(--font-sm);
  padding: 6px 12px;
  border-radius: 14px;
  font-weight: 500;
}

.step-card:nth-child(1) .tags span {
  background: #e8f1fd;
  color: #174ea6;
  border: 1px solid #c5daf9;
}

.step-card:nth-child(2) .tags span {
  background: #e6f7f1;
  color: #0a7f6b;
  border: 1px solid #c3ebdd;
}

.step-card:nth-child(3) .tags span {
  background: #fff4e6;
  color: #9b4a00;
  border: 1px solid #fddbb0;
}

.step-card:nth-child(4) .tags span {
  background: #f3e8fd;
  color: #5b2c98;
  border: 1px solid #dcc4f7;
}

.step-card:nth-child(5) .tags span {
  background: #ffe6eb;
  color: #a61b34;
  border: 1px solid #f9c2cd;
}

.wireframes {
  padding: var(--space-xl) var(--space-md);
  background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
  text-align: center;
  color: #fff;
}

.wireframes-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  background: rgba(138, 180, 248, 0.15);
  color: #8ab4f8;
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.wireframes-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.wireframes-subtitle {
  font-size: var(--font-md);
  opacity: 0.85;
  margin-bottom: var(--space-lg);
}

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

.wireframe-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: var(--space-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.wireframe-card img {
  width: 100%;
  max-width: 100%;
  height: 240px;
  border-radius: 8px;
  margin-bottom: var(--space-sm);
  object-fit: cover;
  display: block;
  object-position: top;
  box-shadow: 0 0 15px rgba(100, 149, 237, 0.4); /* blue glow */
  transition: box-shadow 0.3s ease;
}

.wireframe-card h4 {
  font-size: var(--font-sm);
  font-weight: 500;
  color: #fff;
  opacity: 0.9;
}

.wireframe-impact {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: center;
  max-width: 1440px;
  margin: 0 auto;
}

.impact-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto var(--space-md) auto;
  background: linear-gradient(135deg, #6366f1, #3b82f6);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px rgba(99, 102, 241, 0.6);
}

.impact-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
}

.wireframe-impact h3 {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.wireframe-impact p {
  font-size: var(--font-md);
  line-height: 2;
  opacity: 0.85;
}

.mid-wireframes {
  padding: var(--space-xl) var(--space-md);
  background: #fff;
  text-align: center;
  color: #111;
}

.mid-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  background: rgba(20, 226, 164, 0.1);
  color: var(--accent);
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.mid-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.mid-subtitle {
  font-size: var(--font-md);
  color: #444;
  margin-bottom: var(--space-lg);
}

.mid-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.mid-card {
  background: #f9fafb;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: var(--space-md);
}

.mid-card img {
  width: 100%;
  max-width: 100%;
  height: 240px;
  border-radius: 8px;
  margin-bottom: var(--space-sm);
  object-fit: cover;
  display: block;
  object-position: top;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.4); /* soft green glow */
}

.mid-card h4 {
  font-size: var(--font-sm);
  font-weight: 500;
  color: #111;
}

.mid-impact {
  background: #f9fdfb;
  border: 1px solid #d6f5ea;
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: center;
  max-width: 1440px;
  margin: 0 auto;
}

.mid-impact .impact-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto var(--space-md) auto;
  background: linear-gradient(135deg, #10b981, #059669);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px rgba(16, 185, 129, 0.6);
}

.mid-impact .impact-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
}

.mid-impact h3 {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: #111;
}

.mid-impact p {
  font-size: var(--font-md);
  color: #333;
  line-height: 2;
}

.high-wireframes {
  padding: var(--space-xl) var(--space-md);
  background: linear-gradient(180deg, #2e1065 0%, #6d28d9 100%);
  text-align: center;
  color: #fff;
}

.high-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  background: rgba(236, 72, 153, 0.15);
  color: #f472b6;
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.high-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.high-subtitle {
  font-size: var(--font-md);
  opacity: 0.9;
  margin-bottom: var(--space-lg);
}

.high-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.high-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: var(--space-md);
}

.high-card img {
  width: 100%;
  max-width: 100%;
  height: 440px;
  display: block;
  object-position: top;
  border-radius: 8px;
  margin-bottom: var(--space-sm);
  object-fit: cover;
  box-shadow: 0 0 15px rgba(236, 72, 153, 0.4);
}

.high-card h4 {
  font-size: var(--font-sm);
  font-weight: 500;
  color: #fff;
  opacity: 0.9;
}

.high-impact {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: center;
  max-width: 1440px;
  margin: 0 auto;
}

.high-impact .impact-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto var(--space-md) auto;
  background: linear-gradient(135deg, #ec4899, #db2777);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px rgba(236, 72, 153, 0.6);
}

.high-impact .impact-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
}

.high-impact h3 {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.high-impact p {
  font-size: var(--font-md);
  line-height: 2;
  opacity: 0.9;
}

.feedback {
  position: relative;
  padding: var(--space-xl) var(--space-md);
  background: linear-gradient(180deg, #065f46 0%, #047857 100%);
  text-align: center;
  color: #fff;
}

.feedback::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 2px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(109, 40, 217, 0.6),
    rgba(16, 185, 129, 0.6),
    transparent
  );
}

.feedback-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.feedback-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feedback-subtitle {
  font-size: var(--font-md);
  opacity: 0.9;
  margin-bottom: var(--space-lg);
}

.feedback-intro {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: var(--space-md);
  max-width: 1440px;
  margin: 0 auto var(--space-lg) auto;
  text-align: left;
}

.feedback-intro p {
  margin-bottom: var(--space-sm);
  line-height: 1.8;
  font-size: var(--font-md);
}

.feedback-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.feedback-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: var(--space-md);
  text-align: left;
}

.feedback-card p {
  font-size: var(--font-sm);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
  font-style: italic;
}

.feedback-card h4 {
  font-size: var(--font-sm);
  font-weight: 600;
  color: #fff;
}

.feedback-card h4 span {
  font-weight: 400;
  opacity: 0.85;
}

.feedback-impact {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: center;
  max-width: 1440px;
  margin: 0 auto;
}

.feedback-impact .impact-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto var(--space-md) auto;
  background: linear-gradient(135deg, #10b981, #059669);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px rgba(16, 185, 129, 0.6);
}

.feedback-impact .impact-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
}

.feedback-impact h3 {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feedback-impact p {
  font-size: var(--font-md);
  line-height: 1.8;
  opacity: 0.9;
}

.final-thoughts {
  padding: var(--space-xl) var(--space-md);
  background: #f9fafb;
  text-align: center;
  color: #111;
}

.final-label {
  display: inline-block;
  padding: 6px 16px;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.1rem;
  background: #111;
  color: #fff;
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.final-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.final-subtitle {
  font-size: var(--font-md);
  color: #444;
  margin-bottom: var(--space-lg);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.summary-card {
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: left;
  background: #fff;
  border: 1px solid #eee;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.summary-card i {
  width: 28px;
  height: 28px;
  margin-bottom: var(--space-sm);
}

.summary-card.red i {
  color: #dc2626;
}
.summary-card.green i {
  color: #059669;
}
.summary-card.blue i {
  color: #2563eb;
}
.summary-card.purple i {
  color: #7c3aed;
}

.summary-card h3 {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 12px;
}

.summary-card ul {
  padding-left: 18px;
}

.summary-card li {
  margin-bottom: 8px;
  font-size: var(--font-sm);
  color: #444;
}

.prototype-cta {
  background: linear-gradient(135deg, #10b981, #047857);
  border-radius: 16px;
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  color: #fff;
  max-width: 1440px;
}

.prototype-cta h3 {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.prototype-cta p {
  font-size: var(--font-md);
  margin-bottom: var(--space-md);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: #fff;
  color: #047857;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease;
}

.cta-button:hover {
  background: #065f46;
  color: #fff;
}

.closing-box {
  background: linear-gradient(135deg, #1e293b, #0f172a);
  color: #fff;
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: center;
  max-width: 1440px;
}

.closing-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto var(--space-md) auto;
  background: linear-gradient(135deg, #9333ea, #db2777);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(147, 51, 234, 0.6);
}

.closing-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
}

.closing-box blockquote {
  font-size: var(--font-md);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.closing-box .signature {
  font-size: var(--font-sm);
  opacity: 0.9;
}

.closing-box .signature span {
  color: #10b981;
  font-weight: 600;
}

.case-footer {
  padding: 2rem 2.5rem 4rem !important;
  background: #f9fafb;
}

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

.case-socials {
  display: flex;
  gap: 1rem;
}

.case-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  color: #111;
}

.case-socials i {
  width: 20px;
  height: 20px;
  color: #fff;
}

.next-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  background: #d35400;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.3s ease, transform 0.3s ease;
}

.next-btn:hover {
  background: #e67e22;
  transform: translateX(5px);
}

.case-next i {
  width: 16px;
  height: 16px;
  color: #fff;
}

@media (max-width: 768px) {
  .case-footer .container {
    flex-direction: column;
    gap: 2rem;
  }

  .case-next {
    order: -1;
    text-align: center;
  }

  .case-socials {
    order: 2;
    justify-content: center;
  }
}

#backToTop {
  position: fixed;
  bottom: 4.7rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: #f9fafb;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
  z-index: 1000;
}

#backToTop i {
  width: 20px;
  height: 20px;
  color: #fff;
}

#backToTop:hover {
  background: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

#backToTop.show {
  opacity: 1;
  visibility: visible;
}

.nav-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: none;
  border-radius: 6px;
  padding: 0.5rem;
  cursor: pointer;
}
.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.09);
}
.nav-toggle svg {
  width: 24px;
  height: 24px;
  stroke: #fff;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  position: absolute;
  top: 100%;
  right: 2rem;
  z-index: 9999;
  min-width: 150px;
  background: transparent;
  padding: 0;
}

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

.nav-mobile a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-radius: 6px;
  background: #333;
  color: #fff;
  text-decoration: none;
  font-size: var(--font-sm);
  transition: background 0.3s ease;
  min-width: 120px;
}

.nav-mobile a:hover {
  background: rgba(255, 255, 255, 0.09);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  backdrop-filter: blur(6px);
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 900;
}

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

.navbar {
  position: relative;
  z-index: 1000;
}

.nav-mobile {
  z-index: 1001;
}