/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
  /* Colors */
  --color-bg-primary: #0a0a0b;
  --color-bg-secondary: #111113;
  --color-bg-tertiary: #1a1a1d;
  --color-bg-accent: #141416;

  --color-text-primary: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.7);
  --color-text-muted: rgba(255, 255, 255, 0.5);

  --color-accent: #4ade80;
  --color-accent-hover: #6ee7a0;
  --color-accent-glow: rgba(74, 222, 128, 0.3);

  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-hover: rgba(255, 255, 255, 0.2);

  /* Typography */
  --font-display: "Poppins", sans-serif;
  --font-body: "Inter", sans-serif;

  /* Spacing */
  --section-padding: clamp(80px, 12vw, 160px);
  --container-padding: clamp(20px, 5vw, 80px);
  --container-max-width: 1400px;

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

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
}

/* 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-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

input {
  font-family: inherit;
  border: none;
  background: none;
}

/* ========================================
   Container
   ======================================== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: var(--color-bg-primary);
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.hero-image.loaded {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 11, 0.4) 0%,
    rgba(10, 10, 11, 0.6) 50%,
    rgba(10, 10, 11, 0.95) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 var(--container-padding);
  max-width: 900px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 15vw, 10rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  padding-bottom: 0.1em;
  margin-bottom: 1rem;
  background: linear-gradient(
    135deg,
    var(--color-text-primary) 0%,
    var(--color-text-secondary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: var(--color-text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 36px;
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-xl);
  transition: all var(--transition-medium);
  box-shadow: 0 0 40px var(--color-accent-glow);
}

.cta-button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 60px var(--color-accent-glow);
}

.cta-button svg {
  transition: transform var(--transition-medium);
}

.cta-button:hover svg {
  transform: translateX(4px);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.mouse {
  width: 26px;
  height: 42px;
  border: 2px solid var(--color-text-muted);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.wheel {
  width: 4px;
  height: 8px;
  background: var(--color-text-muted);
  border-radius: 2px;
  animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
  0%,
  100% {
    transform: translateY(0);
    opacity: 1;
  }
  50% {
    transform: translateY(10px);
    opacity: 0.3;
  }
}

/* ========================================
   Feature Sections
   ======================================== */
.feature-section {
  padding: var(--section-padding) 0;
  background: var(--color-bg-primary);
  position: relative;
}

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

.feature-section--highlight {
  background: linear-gradient(
    180deg,
    var(--color-bg-secondary) 0%,
    var(--color-bg-accent) 100%
  );
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 8vw, 100px);
  align-items: center;
}

.feature-grid--reverse {
  direction: rtl;
}

.feature-grid--reverse > * {
  direction: ltr;
}

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  letter-spacing: 0.1em;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.section-text {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--color-text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

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

/* Feature Link */
.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 2rem;
  padding: 14px 28px;
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-xl);
  transition: all var(--transition-medium);
}

.feature-link:hover {
  background: var(--color-accent);
  color: var(--color-bg-primary);
}

.feature-link svg {
  transition: transform var(--transition-medium);
}

.feature-link:hover svg {
  transform: translate(3px, -3px);
}

/* Visual Placeholders */
.feature-visual {
  position: relative;
}

/* Blend Container for scroll-based image transition */
.blend-container {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-medium),
    transform var(--transition-medium);
}

.blend-container:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.blend-container--square {
  aspect-ratio: 1 / 1;
  max-width: 500px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .blend-container--square {
    max-width: 100%;
    aspect-ratio: 1 / 1;
  }
}

@media (max-width: 480px) {
  .blend-container--square {
    aspect-ratio: 1 / 1;
    max-width: 90vw;
  }
}

.blend-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blend-image--base {
  z-index: 1;
}

.blend-image--overlay {
  z-index: 2;
  opacity: 0;
  transition: opacity 0.1s ease-out;
}

/* Single Image Container */
.image-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-medium),
    transform var(--transition-medium);
}

.image-container:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.feature-image {
  width: 100%;
  height: auto;
  display: block;
}

.visual-placeholder {
  aspect-ratio: 4 / 3;
  background: linear-gradient(
    135deg,
    var(--color-bg-tertiary) 0%,
    var(--color-bg-accent) 100%
  );
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: all var(--transition-medium);
}

.visual-placeholder:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.visual-placeholder--putt-dojo {
  background: linear-gradient(
    135deg,
    rgba(0, 212, 170, 0.1) 0%,
    var(--color-bg-accent) 100%
  );
  border-color: rgba(0, 212, 170, 0.2);
}

.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: var(--color-text-muted);
}

.placeholder-content svg {
  opacity: 0.5;
}

.placeholder-content span {
  font-size: 0.875rem;
  font-weight: 500;
}

/* ========================================
   Signup Section
   ======================================== */
.signup-section {
  padding: var(--section-padding) 0;
  background: linear-gradient(
    180deg,
    var(--color-bg-accent) 0%,
    var(--color-bg-primary) 100%
  );
  text-align: center;
}

.signup-content {
  max-width: 600px;
  margin: 0 auto 80px;
}

.signup-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.signup-text {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
}

.signup-form {
  width: 100%;
}

.form-group {
  display: flex;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto;
}

.form-group input {
  flex: 1;
  padding: 18px 24px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: all var(--transition-medium);
}

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

.form-group input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.submit-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 18px 28px;
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-xl);
  transition: all var(--transition-medium);
  white-space: nowrap;
}

.submit-button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
}

.submit-button svg {
  transition: transform var(--transition-medium);
}

.submit-button:hover svg {
  transform: translateX(4px);
}

/* Contact Section */
.contact-section {
  padding-top: 60px;
  border-top: 1px solid var(--color-border);
  max-width: 400px;
  margin: 0 auto;
}

.contact-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 1.25rem;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-accent);
  transition: all var(--transition-medium);
}

.contact-email:hover {
  color: var(--color-accent-hover);
}

.contact-email svg {
  opacity: 0.7;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: 40px 0;
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-grid--reverse {
    direction: ltr;
  }

  .feature-content {
    order: 1;
  }

  .feature-visual {
    order: 2;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: clamp(3rem, 12vw, 5rem);
  }

  .cta-button {
    padding: 16px 28px;
    font-size: 0.95rem;
  }

  .scroll-indicator {
    bottom: 24px;
  }

  .form-group {
    flex-direction: column;
  }

  .form-group input,
  .submit-button {
    width: 100%;
    justify-content: center;
  }

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

@media (max-width: 480px) {
  :root {
    --section-padding: 60px;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .signup-title {
    font-size: 2rem;
  }

  .visual-placeholder {
    aspect-ratio: 16 / 10;
  }
}

/* ========================================
   Animations & Effects
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* Subtle grain texture overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
  z-index: 9999;
}

/* Gradient glow effect for sections */
.feature-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-border),
    transparent
  );
}

/* Selection styling */
::selection {
  background: var(--color-accent);
  color: var(--color-bg-primary);
}

/* ========================================
   Kit (ConvertKit) Form Styles
   ======================================== */

/* Alert Messages */
.formkit-alert {
  list-style: none;
  padding: 16px 24px;
  margin: 0 auto 20px;
  max-width: 500px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  text-align: center;
}

.formkit-alert:empty {
  display: none;
}

.formkit-alert-success {
  background: rgba(74, 222, 128, 0.15);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

.formkit-alert-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid #ef4444;
  color: #f87171;
}

/* Loading Spinner */
.formkit-spinner {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.formkit-spinner > div {
  width: 8px;
  height: 8px;
  background-color: var(--color-bg-primary);
  border-radius: 100%;
  animation: formkit-bounce 1.4s infinite ease-in-out both;
}

.formkit-spinner > div:nth-child(1) {
  animation-delay: -0.32s;
}

.formkit-spinner > div:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes formkit-bounce {
  0%,
  80%,
  100% {
    transform: scale(0);
  }
  40% {
    transform: scale(1);
  }
}

/* Button loading state */
.submit-button {
  position: relative;
}

.submit-button[data-active] .formkit-spinner {
  display: flex;
}

.submit-button[data-active] > span,
.submit-button[data-active] > svg {
  opacity: 0;
}