/* ============================================
   SlideLink - Main Stylesheet
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Brand Colors - Primary */
  --primary-dark: #25225e;
  --primary-medium: #403973;
  --primary-blue: #3973b6;
  --text-primary: #25225e;
  --text-dark: #1F2933;
  --text-medium: #52606D;
  --text-light: #7B8794;

  /* Brand Colors - Accents */
  --accent-cyan: #7ef8f9;
  --accent-magenta: #d555d3;
  --accent-peach: #e3a080;

  /* Brand Colors - Secondary */
  --secondary-green: #63d29a;
  --secondary-teal: #0089a0;
  --secondary-lavender: #c8afef;

  /* Neutrals */
  --white: #FFFFFF;
  --gray-50: #FAFBFC;
  --gray-100: #F5F7FA;
  --gray-200: #E4E7EB;
  --gray-300: #CBD2D9;

  /* Typography */
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--white);
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
  margin-bottom: 1rem;
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent-cyan), var(--primary-blue), var(--accent-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

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

.section-alt {
  background-color: var(--gray-50);
}

.section-dark {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
  color: var(--white);
}

.section-dark h2,
.section-dark h3,
.section-dark p {
  color: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-header p {
  color: var(--text-medium);
  font-size: 1.125rem;
  margin-top: var(--space-xs);
}

.section-divider {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-magenta));
  margin: var(--space-sm) auto 0;
  border-radius: 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-medium);
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-magenta));
  color: var(--white);
  box-shadow: 0 4px 15px rgba(57, 115, 182, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(57, 115, 182, 0.4);
}

.btn-secondary {
  background: var(--white);
  color: var(--text-primary);
  border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  transition: all var(--transition-medium);
}

.nav.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  transition: height var(--transition-medium);
}

.nav.scrolled .nav-inner {
  height: 64px;
}

.nav-logo {
  height: 40px;
  width: auto;
  transition: transform var(--transition-fast);
}

.nav-logo:hover {
  transform: scale(1.02);
}

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

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-medium);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-magenta));
  transition: width var(--transition-medium);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

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

.nav-cta {
  margin-left: var(--space-sm);
}

/* Mobile Navigation */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--transition-medium);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(80px + var(--space-md)) var(--space-sm) var(--space-lg);
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 50%, var(--gray-100) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 100%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -20%;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle, rgba(255, 97, 220, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-animation {
  margin-bottom: -40px;
  margin-top: -30px;
}

.hero-animation lottie-player {
  margin: 0 auto;
  max-width: 90vw;
}

.hero h1 {
  margin-bottom: var(--space-sm);
}

.hero-tagline {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--text-medium);
  margin-bottom: var(--space-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.scroll-indicator {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-indicator svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-light);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* ---------- Problem Section ---------- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}

.problem-card {
  background: var(--white);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
  border: 1px solid var(--gray-200);
}

.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.problem-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.1), rgba(255, 97, 220, 0.1));
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
}

.problem-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary-blue);
}

.problem-card h3 {
  margin-bottom: var(--space-xs);
}

.problem-card p {
  color: var(--text-medium);
  margin-bottom: 0;
  font-size: 0.9375rem;
}

/* ---------- Solutions Section ---------- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.solution-card {
  background: var(--white);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--primary-blue), var(--accent-magenta));
  opacity: 0;
  transition: opacity var(--transition-medium);
}

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

.solution-card:hover::before {
  opacity: 1;
}

.solution-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-magenta));
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
}

.solution-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--white);
}

.solution-card h3 {
  margin-bottom: var(--space-xs);
}

.solution-card p {
  color: var(--text-medium);
  margin-bottom: 0;
}

/* ---------- Case Studies Section ---------- */
.case-studies {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.case-study-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-medium);
}

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

.case-study-metric {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
  padding: var(--space-md);
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  margin-bottom: var(--space-xs);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-study-content {
  padding: var(--space-md);
}

.case-study-content h3 {
  margin-bottom: var(--space-xs);
}

.case-study-content p {
  color: var(--text-medium);
  font-size: 0.9375rem;
}

/* ---------- Process Section ---------- */
.section-process {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
  padding: var(--space-xl) 0;
}

.section-process .section-header h2,
.section-process .section-header p {
  color: var(--white);
}

.section-process .section-divider {
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-magenta));
}

/* Process Grid Layout */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.process-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.process-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto var(--space-sm);
}

.process-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.process-card h3 {
  color: var(--primary-dark);
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.process-card p {
  color: var(--text-medium);
  font-size: 0.875rem;
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.process-duration {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--white);
  background: var(--primary-blue);
  padding: 0.375rem 1rem;
  border-radius: 100px;
  margin-top: auto;
}

/* Tablet Layout */
@media (max-width: 1023px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile Layout */
@media (max-width: 600px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- About Section ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: center;
  margin-bottom: var(--space-lg);
}

.about-photo-wrapper {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto;
  box-shadow: var(--shadow-xl);
  border: 4px solid var(--white);
}

.about-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%;
  transform: scale(1.2);
}

.about-text h3 {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.about-text p {
  color: var(--text-medium);
}

.about-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-blue);
  font-weight: 500;
  margin-top: var(--space-sm);
  transition: gap var(--transition-fast);
}

.about-link:hover {
  gap: 0.75rem;
}

/* Credentials */
.credentials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  max-width: 800px;
  margin: 0 auto;
}

.credential {
  text-align: center;
  display: grid;
  grid-template-rows: 70px auto;
  justify-items: center;
  align-items: start;
}

.credential .logo-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.credential img {
  height: 45px;
  max-width: 180px;
  width: auto;
  object-fit: contain;
  /* Turn white logos to dark gray text color */
  filter: invert(15%) sepia(5%) saturate(300%) hue-rotate(180deg) brightness(55%) contrast(95%);
  transition: all var(--transition-medium);
}

.credential .logo-wrapper + p {
  margin-top: var(--space-sm);
}

/* UMich and UVU logos need to be larger */
.credential:first-child img,
.credential:last-child img {
  height: 65px;
  max-width: 230px;
}

.credential p {
  font-size: 0.875rem;
  color: var(--text-medium);
  margin-bottom: 0;
}

/* ---------- Contact Section ---------- */
#contact {
  padding: var(--space-lg) 0;
}

#contact .section-header {
  padding-top: 0.75rem;
}

.contact-content {
  text-align: center;
  max-width: 550px;
  margin: 0 auto;
}

.contact-intro {
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

.contact-methods {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-sm) var(--space-lg);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-medium);
  min-width: 180px;
}

.contact-card:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.4);
}

.contact-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-cyan), var(--primary-blue));
  border-radius: 50%;
  margin-bottom: var(--space-sm);
}

.contact-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--white);
}

.contact-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
  margin-bottom: 0.2rem;
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 500;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-md) 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer p {
  margin: 0;
  font-size: 0.875rem;
}

.footer a {
  color: var(--white);
  transition: opacity var(--transition-fast);
}

.footer a:hover {
  opacity: 0.8;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-sm);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta {
    margin-left: 0;
    width: 100%;
  }

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

  .hero {
    padding-top: calc(80px + var(--space-md));
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

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

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

  .about-photo {
    width: 200px;
    height: 200px;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (min-width: 769px) {
  .about-intro {
    grid-template-columns: auto 1fr;
  }

  .about-text {
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-md);
  }
}

/* ---------- Print Styles ---------- */
@media print {
  .nav,
  .hero-cta,
  .scroll-indicator {
    display: none;
  }

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

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