:root {
  /* Colors */
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);
  --color-select-caret: rgba(19, 52, 59, 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* Typography */

   --font-en-serif: 'Libre Caslon Display', serif;
  --font-en-sans: 'KyivType Sans', sans-serif;
  --font-en-script: 'Shadows Into Light Two', cursive;
  --font-ko: 'GangwonEduAll', sans-serif;
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: rgba(31, 33, 33, 1);
    --color-surface: rgba(38, 40, 40, 1);
    --color-text: rgba(245, 245, 245, 1);
    --color-text-secondary: rgba(167, 169, 169, 0.7);
    --color-primary: rgba(50, 184, 198, 1);
    --color-primary-hover: rgba(45, 166, 178, 1);
    --color-primary-active: rgba(41, 150, 161, 1);
    --color-secondary: rgba(119, 124, 124, 0.15);
    --color-secondary-hover: rgba(119, 124, 124, 0.25);
    --color-secondary-active: rgba(119, 124, 124, 0.3);
    --color-border: rgba(119, 124, 124, 0.3);
    --color-error: rgba(255, 84, 89, 1);
    --color-success: rgba(50, 184, 198, 1);
    --color-warning: rgba(230, 129, 97, 1);
    --color-info: rgba(167, 169, 169, 1);
    --color-focus-ring: rgba(50, 184, 198, 0.4);
    --color-btn-primary-text: rgba(19, 52, 59, 1);
    --color-card-border: rgba(119, 124, 124, 0.2);
    --color-card-border-inner: rgba(119, 124, 124, 0.15);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
      inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(119, 124, 124, 0.2);
    --color-border-secondary: rgba(119, 124, 124, 0.2);
    --color-select-caret: rgba(245, 245, 245, 0.8);

    /* Common style patterns - updated for dark mode */
    --focus-ring: 0 0 0 3px var(--color-focus-ring);
    --focus-outline: 2px solid var(--color-primary);
    --status-bg-opacity: 0.15;
    --status-border-opacity: 0.25;
    --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

    /* RGB versions for dark mode */
    --color-success-rgb: 50, 184, 198;
    --color-error-rgb: 255, 84, 89;
    --color-warning-rgb: 230, 129, 97;
    --color-info-rgb: 167, 169, 169;
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  --color-background: rgba(31, 33, 33, 1);
  --color-surface: rgba(38, 40, 40, 1);
  --color-text: rgba(245, 245, 245, 1);
  --color-text-secondary: rgba(167, 169, 169, 0.7);
  --color-primary: rgba(50, 184, 198, 1);
  --color-primary-hover: rgba(45, 166, 178, 1);
  --color-primary-active: rgba(41, 150, 161, 1);
  --color-secondary: rgba(119, 124, 124, 0.15);
  --color-secondary-hover: rgba(119, 124, 124, 0.25);
  --color-secondary-active: rgba(119, 124, 124, 0.3);
  --color-border: rgba(119, 124, 124, 0.3);
  --color-error: rgba(255, 84, 89, 1);
  --color-success: rgba(50, 184, 198, 1);
  --color-warning: rgba(230, 129, 97, 1);
  --color-info: rgba(167, 169, 169, 1);
  --color-focus-ring: rgba(50, 184, 198, 0.4);
  --color-btn-primary-text: rgba(19, 52, 59, 1);
  --color-card-border: rgba(119, 124, 124, 0.15);
  --color-card-border-inner: rgba(119, 124, 124, 0.15);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  --color-border-secondary: rgba(119, 124, 124, 0.2);
  --color-select-caret: rgba(245, 245, 245, 0.8);

  /* Common style patterns - updated for dark mode */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for dark mode */
  --color-success-rgb: 50, 184, 198;
  --color-error-rgb: 255, 84, 89;
  --color-warning-rgb: 230, 129, 97;
  --color-info-rgb: 167, 169, 169;
}

[data-color-scheme="light"] {
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-md);
}

p {
  margin: 0 0 var(--space-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

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

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

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

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

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

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators - simplified with CSS variables */
.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(
    var(--color-success-rgb, 33, 128, 141),
    var(--status-bg-opacity)
  );
  color: var(--color-success);
  border: 1px solid
    rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(
    var(--color-error-rgb, 192, 21, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-error);
  border: 1px solid
    rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(
    var(--color-warning-rgb, 168, 75, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-warning);
  border: 1px solid
    rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(
    var(--color-info-rgb, 98, 108, 113),
    var(--status-bg-opacity)
  );
  color: var(--color-info);
  border: 1px solid
    rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

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

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2')
    format('woff2');
}

:root {
  /* Colors */
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);
  --color-select-caret: rgba(19, 52, 59, 0.8);

  /* Custom colors for Colorin */
  --color-beige: #F5F5DC;
  --color-navy: #1E3A8A;
  --color-beige-light: #FAFAF5;
  --color-navy-light: #3B82F6;

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* Typography */
  --font-family-base: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-40: 40px;
  --space-48: 48px;
  --space-64: 64px;
  --space-80: 80px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15), inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

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

html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin: 0 0 var(--space-16) 0;
  line-height: var(--line-height-normal);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
  min-height: 44px;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: var(--color-navy);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover {
  background: var(--color-navy-light);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--color-beige);
  color: var(--color-text);
}

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

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-navy);
  color: var(--color-navy);
}

.btn--outline:hover {
  background: var(--color-navy);
  color: var(--color-btn-primary-text);
}

.btn--sm {
  padding: var(--space-6) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  min-height: 36px;
}

.btn--lg {
  padding: var(--space-12) var(--space-24);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
  min-height: 52px;
}

.btn--full-width {
  width: 100%;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-12);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard);
  font-family: var(--font-family-base);
}

.form-control:focus {
  border-color: var(--color-navy);
  outline: none;
  box-shadow: var(--focus-ring);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.form-group {
  margin-bottom: var(--space-20);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-16);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-32);
  }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(252, 252, 249, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--duration-normal) var(--ease-standard);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-16) var(--space-16);
  min-height: 70px;
}

.nav__logo {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  margin: 0;
}

.nav__menu {
  display: none;
  list-style: none;
  gap: var(--space-32);
}

.nav__link {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav__link:hover {
  color: var(--color-navy);
}

.nav__social {
  display: flex;
  gap: var(--space-12);
}

.nav__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-beige);
  transition: all var(--duration-fast) var(--ease-standard);
}

.nav__social-link:hover {
  background: var(--color-navy);
  transform: translateY(-2px);
}

.nav__social-link:hover .nav__social-icon {
  transform: scale(1.1);
}

.nav__social-icon {
  font-size: var(--font-size-lg);
  transition: transform var(--duration-fast) var(--ease-standard);
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-8);
}

.nav__toggle-line {
  width: 24px;
  height: 2px;
  background: var(--color-navy);
  transition: all var(--duration-fast) var(--ease-standard);
}

/* Mobile menu styles */
.nav__menu--active {
  display: flex !important;
  flex-direction: column;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--color-surface);
  padding: var(--space-24);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.nav__toggle--active .nav__toggle-line:nth-child(2) {
  opacity: 0;
}

.nav__toggle--active .nav__toggle-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.nav-open {
  overflow: hidden;
}

.nav__menu--active .nav__item {
  margin-bottom: var(--space-16);
}

.nav__menu--active .nav__link {
  font-size: var(--font-size-lg);
  padding: var(--space-12) 0;
  display: block;
  border-bottom: 1px solid var(--color-border);
}

.nav__menu--active .nav__link:last-child {
  border-bottom: none;
}

@media (min-width: 768px) {
  .nav__menu {
    display: flex;
  }
  
  .nav__toggle {
    display: none;
  }
}

/* Header scroll effects */
.header--scrolled {
  background: rgba(252, 252, 249, 0.98);
  backdrop-filter: blur(15px);
  box-shadow: var(--shadow-sm);
}

.header--hidden {
  transform: translateY(-100%);
}

/* Active navigation link */
.nav__link--active {
  color: var(--color-navy) !important;
  font-weight: var(--font-weight-semibold);
}

/* Hero Section */
.hero {
  padding: var(--space-80) 0;
  background: linear-gradient(135deg, var(--color-beige-light) 0%, var(--color-surface) 100%);
  position: relative;
  overflow: hidden;
}

.hero__container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-48);
  align-items: center;
}

.hero__content {
  text-align: center;
  z-index: 2;
}

.hero__title {
  margin-bottom: var(--space-24);
}

.hero__brand {
  display: block;
  font-size: 3rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-8);
}

.hero__subtitle {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.hero__philosophy {
  font-size: var(--font-size-lg);
  color: var(--color-navy);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-16);
}

.hero__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  align-items: center;
}

.hero__visual {
  position: relative;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__circle {
  position: absolute;
  border-radius: 50%;
  animation: float 3s ease-in-out infinite;
}

.hero__circle--1 {
  width: 120px;
  height: 120px;
  background: var(--color-beige);
  top: 20%;
  left: 20%;
  animation-delay: 0s;
}

.hero__circle--2 {
  width: 80px;
  height: 80px;
  background: var(--color-navy);
  opacity: 0.7;
  top: 60%;
  right: 30%;
  animation-delay: 1s;
}

.hero__circle--3 {
  width: 60px;
  height: 60px;
  background: var(--color-primary);
  opacity: 0.6;
  bottom: 30%;
  left: 60%;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

/* Animation classes */
.animate-in {
  animation: fadeInUp 0.6s ease-out;
}

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

/* Hero animations */
.hero__content--loaded {
  animation: fadeInUp 0.8s ease-out;
}

.hero__visual--loaded {
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* Card interactions */
.card--hovered {
  transform: translateY(-8px) !important;
  box-shadow: var(--shadow-lg) !important;
}

.card--clicked {
  transform: scale(0.98);
}

/* Form message styles */
.form-message {
  padding: var(--space-16);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-24);
  font-size: var(--font-size-sm);
  animation: slideInDown 0.3s ease-out;
}

.form-message--success {
  background: rgba(var(--color-success-rgb), 0.1);
  color: var(--color-success);
  border: 1px solid rgba(var(--color-success-rgb), 0.2);
}

.form-message--error {
  background: rgba(var(--color-error-rgb), 0.1);
  color: var(--color-error);
  border: 1px solid rgba(var(--color-error-rgb), 0.2);
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Smooth transitions */
.loaded * {
  transition: all var(--duration-normal) var(--ease-standard);
}

/* Focus styles for accessibility */
.nav__toggle:focus {
  outline: 2px solid var(--color-navy);
  outline-offset: 2px;
}

@media (min-width: 768px) {
  .hero__container {
    grid-template-columns: 1fr 1fr;
  }
  
  .hero__content {
    text-align: left;
  }
  
  .hero__description {
    margin-left: 0;
    margin-right: 0;
  }
  
  .hero__cta {
    flex-direction: row;
    justify-content: flex-start;
  }
  
  .hero__brand {
    font-size: 4rem;
  }
}

/* Section Styles */
.section__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  text-align: center;
  margin-bottom: var(--space-48);
}

/* About Section */
.about {
  padding: var(--space-80) 0;
  background: var(--color-surface);
}

.about__content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about__philosophy {
  font-size: var(--font-size-xl);
  color: var(--color-navy);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-32);
  font-style: italic;
}

.about__description {
  margin-bottom: var(--space-48);
}

.about__description p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.about__values {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-32);
}

.value__item {
  text-align: center;
  padding: var(--space-24);
  background: var(--color-beige-light);
  border-radius: var(--radius-lg);
  transition: transform var(--duration-normal) var(--ease-standard);
}

.value__item:hover {
  transform: translateY(-4px);
}

.value__icon {
  font-size: 2rem;
  margin-bottom: var(--space-16);
  display: block;
}

.value__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-8);
}

.value__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

@media (min-width: 768px) {
  .about__values {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Services Section */
.services {
  padding: var(--space-80) 0;
  background: var(--color-beige-light);
}

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-32);
}

.service__card {
  background: var(--color-surface);
  padding: var(--space-32);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-card-border);
}

.service__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.service__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-16);
  display: block;
}

.service__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-12);
}

.service__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-20);
  line-height: 1.6;
}

.service__features {
  list-style: none;
  margin-bottom: var(--space-24);
}

.service__features li {
  padding: var(--space-6) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  position: relative;
  padding-left: var(--space-16);
}

.service__features li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

.service__actions {
  display: flex;
  gap: var(--space-12);
  flex-wrap: wrap;
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Portfolio Section */
.portfolio {
  padding: var(--space-80) 0;
  background: var(--color-surface);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-32);
}

.portfolio__card {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-card-border);
}

.portfolio__card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.portfolio__type {
  margin-bottom: var(--space-16);
}

.portfolio__badge {
  display: inline-block;
  padding: var(--space-4) var(--space-12);
  background: var(--color-beige);
  color: var(--color-navy);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.portfolio__badge--video {
  background: var(--color-primary);
  color: var(--color-surface);
}

.portfolio__badge--project {
  background: var(--color-navy);
  color: var(--color-surface);
}

.portfolio__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-12);
  line-height: 1.4;
}

.portfolio__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  line-height: 1.6;
}

.portfolio__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.portfolio__category {
  font-weight: var(--font-weight-medium);
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Reviews Section */
.reviews {
  padding: var(--space-80) 0;
  background: var(--color-beige-light);
}

.reviews__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-32);
}

.review__card {
  background: var(--color-surface);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-standard);
  border: 1px solid var(--color-card-border);
}

.review__card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.review__content {
  margin-bottom: var(--space-20);
}

.review__text {
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin-bottom: var(--space-12);
  line-height: 1.6;
}

.review__summary {
  font-size: var(--font-size-sm);
  color: var(--color-navy);
  font-weight: var(--font-weight-medium);
  font-style: italic;
  margin: 0;
}

.review__author {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.review__avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-beige);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
}

.review__name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.review__role {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.review__stars {
  color: #FFD700;
  font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
  .reviews__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Contact Section */
.contact {
  padding: var(--space-80) 0;
  background: var(--color-surface);
}

.contact__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-48);
  margin-bottom: var(--space-64);
}

.contact__info {
  text-align: center;
}

.contact__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
  line-height: 1.6;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
}

.contact__item {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-16);
  background: var(--color-beige-light);
  border-radius: var(--radius-base);
}

.contact__icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.contact__text h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-4);
}

.contact__text p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin: 0;
}

.contact__form {
  background: var(--color-beige-light);
  padding: var(--space-32);
  border-radius: var(--radius-lg);
}

.contact__cta {
  text-align: center;
  padding: var(--space-40);
  background: var(--color-beige-light);
  border-radius: var(--radius-lg);
}

.cta__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-12);
}

.cta__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
}

.cta__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  align-items: center;
}

@media (min-width: 768px) {
  .contact__content {
    grid-template-columns: 1fr 1fr;
  }
  
  .contact__info {
    text-align: left;
  }
  
  .cta__actions {
    flex-direction: row;
    justify-content: center;
  }
}

/* Footer */
.footer {
  padding: var(--space-48) 0 var(--space-24) 0;
  background: var(--color-navy);
  color: var(--color-surface);
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-32);
  margin-bottom: var(--space-32);
}

.footer__logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-surface);
  margin-bottom: var(--space-8);
}

.footer__tagline {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-24);
}

.footer__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-surface);
  margin-bottom: var(--space-12);
}

.footer__list {
  list-style: none;
}

.footer__list li {
  margin-bottom: var(--space-8);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--duration-fast) var(--ease-standard);
}

.footer__link:hover {
  color: var(--color-surface);
}

.footer__bottom {
  text-align: center;
  padding-top: var(--space-24);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

@media (min-width: 768px) {
  .footer__content {
    grid-template-columns: 1fr 2fr;
  }
}