: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);

  /* Dynamic sizing variables */
  --slide-padding-horizontal: clamp(20px, 4vw, 60px);
  --slide-padding-vertical: clamp(20px, 3vw, 40px);
  --slide-title-size: clamp(32px, 6vw, 64px);
  --slide-subtitle-size: clamp(18px, 3vw, 28px);
  --slide-subtitle-small-size: clamp(14px, 2vw, 18px);
  --big-number-size: clamp(48px, 8vw, 72px);
  --big-number-label-size: clamp(16px, 2.5vw, 24px);
  --stat-number-size: clamp(32px, 5vw, 48px);
  --stat-label-size: clamp(12px, 1.5vw, 16px);
  --feature-card-padding: clamp(20px, 3vw, 30px);
  --feature-icon-size: clamp(32px, 5vw, 48px);
  --feature-title-size: clamp(16px, 2.5vw, 20px);
  --feature-text-size: clamp(12px, 1.8vw, 16px);
  --metric-number-size: clamp(36px, 6vw, 56px);
  --metric-label-size: clamp(14px, 2vw, 18px);
  --result-number-size: clamp(32px, 5vw, 48px);
  --result-text-size: clamp(12px, 1.8vw, 16px);
  --cta-number-size: clamp(24px, 4vw, 36px);
  --cta-label-size: clamp(10px, 1.5vw, 14px);
  --comparison-cell-padding: clamp(12px, 2vw, 20px);
  --comparison-font-size: clamp(12px, 1.8vw, 16px);
  --audio-feature-padding: clamp(12px, 2vw, 18px);
  --audio-icon-size: clamp(20px, 3vw, 28px);
  --audio-title-size: clamp(12px, 2vw, 16px);
  --audio-text-size: clamp(10px, 1.5vw, 13px);
  --result-stat-size: clamp(10px, 1.5vw, 14px);
  --nav-btn-size: clamp(40px, 6vw, 48px);
  --indicator-size: clamp(8px, 1.5vw, 12px);
  --header-padding: clamp(8px, 1.5vw, 12px);
  --header-font-size: clamp(16px, 2.5vw, 20px);
  --btn-padding: clamp(6px, 1.5vw, 8px) clamp(12px, 2.5vw, 16px);
  --btn-font-size: clamp(12px, 1.8vw, 14px);
  --grid-gap: clamp(20px, 4vw, 60px);
  --card-gap: clamp(15px, 3vw, 30px);
  --section-gap: clamp(20px, 4vw, 40px);

  /* 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: "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;
  /* Support for safe areas on devices with notches */
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

body {
  margin: 0;
  padding: 0;
  /* Prevent horizontal scrolling */
  overflow-x: hidden;
  /* Improve touch scrolling on iOS */
  -webkit-overflow-scrolling: touch;
}

*,
*::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;
  /* Prevent text selection on interactive elements */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.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');
}

/* Import design system styles */

/* Additional Google-style presentation styles */
body {
  font-family: 'Google Sans', var(--font-family-base);
  margin: 0;
  padding: 0;
  background: #f8f9fa;
  overflow: hidden;
}

.presentation-container {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header Styles */
.presentation-header {
  background: white;
  border-bottom: 1px solid #e0e0e0;
  padding: var(--header-padding) clamp(16px, 3vw, 24px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  z-index: 100;
}

.logo {
  font-size: var(--header-font-size);
  font-weight: 500;
  color: #1a73e8;
  margin: 0;
}

.header-right {
  display: flex;
  gap: clamp(8px, 1.5vw, 12px);
}

/* Main Presentation Area */
.presentation-main {
  flex: 1;
  position: relative;
  background: white;
  margin: 16px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  overflow: hidden;
}

/* Slide Styles */
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: translateX(100px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: var(--slide-padding-vertical) var(--slide-padding-horizontal);
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Improve performance with hardware acceleration */
  will-change: transform, opacity;
  /* Prevent text selection during transitions */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.slide.active {
  opacity: 1;
  transform: translateX(0);
}

.slide.prev {
  transform: translateX(-100px);
}

.slide-content {
  width: 100%;
  max-width: 1200px;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Optimize animations for better performance */
.feature-card,
.result-item,
.audio-feature,
.metric-large,
.cta-stat,
.feature-block {
  /* Use transform instead of changing layout properties for better performance */
  will-change: transform;
  /* Enable hardware acceleration */
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* Smooth transitions for all interactive elements */
.btn,
.nav-btn,
.indicator,
.feature-card,
.result-item {
  transition: all var(--duration-normal) var(--ease-standard);
}

/* Optimize hover effects for touch devices */
@media (hover: hover) and (pointer: fine) {
  .feature-card:hover {
    transform: translateY(-4px) translateZ(0);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: #1a73e8;
  }
  
  .result-item:hover {
    transform: translateY(-2px) translateZ(0);
    border-color: #1a73e8;
  }
  
  .nav-btn:hover {
    background: #1557b0;
    transform: scale(1.1) translateZ(0);
  }
  
  .indicator:hover {
    background: #4285f4;
    transform: scale(1.2) translateZ(0);
  }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  .slide,
  .feature-card,
  .result-item,
  .audio-feature,
  .metric-large,
  .cta-stat,
  .btn,
  .nav-btn,
  .indicator {
    transition: none;
    animation: none;
  }
  
  .slide.active {
    transform: none;
  }
  
  .slide.prev {
    transform: none;
  }
}

/* Title Slide */
.slide-title {
  justify-content: center;
  text-align: center;
}

.slide-title-main {
  font-size: var(--slide-title-size);
  font-weight: 700;
  color: #1a73e8;
  margin: 0 0 16px 0;
  line-height: 1.1;
}

.slide-subtitle {
  font-size: var(--slide-subtitle-size);
  color: #5f6368;
  margin: 0 0 40px 0;
  line-height: 1.3;
}

.slide-subtitle-small {
  font-size: var(--slide-subtitle-small-size);
  color: #9aa0a6;
  margin: 40px 0 0 0;
}

.title-stats {
  display: flex;
  justify-content: center;
  gap: var(--grid-gap);
  margin: 40px 0;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: var(--stat-number-size);
  font-weight: 700;
  color: #34a853;
  line-height: 1;
}

.stat-label {
  font-size: var(--stat-label-size);
  color: #5f6368;
  margin-top: 8px;
}

/* Regular Slide Title */
.slide-title:not(.slide-title-main) {
  font-size: clamp(24px, 4.5vw, 32px);
  font-weight: 600;
  color: #202124;
  margin: 0 0 clamp(15px, 2.5vw, 20px) 0;
  border-bottom: 3px solid #1a73e8;
  padding-bottom: clamp(8px, 1.5vw, 12px);
  flex-shrink: 0;
}

/* Content Grid */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap);
  align-items: start;
  flex: 1;
}

.content-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.big-number {
  font-size: var(--big-number-size);
  font-weight: 700;
  color: #ea4335;
  line-height: 1;
  margin-bottom: 16px;
}

.big-number-label {
  font-size: var(--big-number-label-size);
  color: #5f6368;
  margin: 0;
}

.growth-indicator {
  font-size: clamp(16px, 2.5vw, 20px);
  color: #34a853;
  font-weight: 500;
  margin-top: 20px;
  padding: 8px 16px;
  background: rgba(52, 168, 83, 0.1);
  border-radius: 20px;
}

.content-right h3 {
  font-size: clamp(20px, 3.5vw, 28px);
  color: #202124;
  margin: 0 0 24px 0;
}

.problem-list {
  list-style: none;
  padding: 0;
  margin: 0 0 30px 0;
}

.problem-list li {
  font-size: clamp(14px, 2.2vw, 18px);
  padding: 12px 0;
  border-bottom: 1px solid #f1f3f4;
  color: #5f6368;
}

.market-size {
  font-size: clamp(16px, 2.5vw, 20px);
  color: #1a73e8;
  font-weight: 500;
  background: rgba(26, 115, 232, 0.1);
  padding: 16px 20px;
  border-radius: 8px;
  text-align: center;
}

/* Solution Grid */
.solution-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--grid-gap);
  flex: 1;
}

.solution-main h2 {
  font-size: clamp(24px, 4vw, 32px);
  color: #202124;
  margin: 0 0 40px 0;
}

.solution-features {
  display: flex;
  gap: var(--card-gap);
}

.feature-card {
  background: white;
  border: 2px solid #e8f0fe;
  border-radius: 16px;
  padding: var(--feature-card-padding);
  text-align: center;
  flex: 1;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
  border-color: #1a73e8;
}

.feature-icon {
  font-size: var(--feature-icon-size);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: var(--feature-title-size);
  color: #202124;
  margin: 0 0 8px 0;
}

.feature-card p {
  font-size: var(--feature-text-size);
  color: #5f6368;
  margin: 0;
}

.solution-advantages h3 {
  font-size: clamp(18px, 3vw, 24px);
  color: #202124;
  margin: 0 0 24px 0;
}

.advantage-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.advantage-item {
  font-size: clamp(14px, 2.2vw, 18px);
  color: #34a853;
  font-weight: 500;
  padding: 12px 16px;
  background: rgba(52, 168, 83, 0.1);
  border-radius: 8px;
  border-left: 4px solid #34a853;
}

/* Features Grid - Slide 4 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(180px, 22vw, 250px), 1fr));
  gap: clamp(10px, 1.8vw, 16px);
  flex: 1;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
  padding-right: 8px;
}

.feature-block {
  background: #f8f9fa;
  border-radius: 12px;
  padding: clamp(12px, 2.5vw, 20px);
  border-left: 4px solid #1a73e8;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.feature-header {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.5vw, 12px);
  margin-bottom: clamp(8px, 1.5vw, 12px);
  flex-shrink: 0;
}

.feature-emoji {
  font-size: clamp(20px, 3.5vw, 28px);
  flex-shrink: 0;
}

.feature-block h3 {
  font-size: clamp(14px, 2.2vw, 18px);
  color: #202124;
  margin: 0;
  line-height: 1.2;
}

.feature-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(4px, 1vw, 6px);
}

.feature-block li {
  font-size: clamp(11px, 1.8vw, 14px);
  color: #5f6368;
  padding: clamp(2px, 0.5vw, 4px) 0;
  position: relative;
  padding-left: clamp(12px, 2vw, 16px);
  line-height: 1.3;
}

.feature-block li:before {
  content: "•";
  color: #1a73e8;
  font-weight: bold;
  position: absolute;
  left: 0;
}

.feature-block strong {
  color: #ea4335;
  font-weight: 600;
}

/* Audio Features - Slide 5 */
.audio-features {
  display: flex;
  flex-direction: column;
  gap: clamp(6px, 1.2vw, 10px);
  flex: 1;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  padding-right: 8px;
}

.audio-feature {
  background: white;
  border-radius: 12px;
  padding: clamp(10px, 2vw, 14px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid #e8eaed;
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
}

.audio-feature-header {
  display: flex;
  align-items: center;
  gap: clamp(6px, 1.5vw, 10px);
  margin-bottom: clamp(6px, 1.5vw, 8px);
  flex-shrink: 0;
}

.audio-icon {
  font-size: clamp(18px, 3vw, 24px);
  width: clamp(28px, 4.5vw, 36px);
  height: clamp(28px, 4.5vw, 36px);
  background: rgba(26, 115, 232, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.audio-feature h3 {
  font-size: clamp(12px, 2vw, 14px);
  margin: 0;
  color: #202124;
  line-height: 1.2;
}

.audio-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(4px, 1vw, 6px);
}

.audio-content ul {
  padding: 0;
  margin: 0;
  list-style: none;
  flex: 1;
}

.audio-content li {
  font-size: clamp(10px, 1.5vw, 12px);
  color: #5f6368;
  padding: clamp(2px, 0.5vw, 3px) 0 clamp(2px, 0.5vw, 3px) clamp(12px, 2vw, 16px);
  position: relative;
  line-height: 1.3;
}

.audio-content li:before {
  content: "→";
  color: #1a73e8;
  position: absolute;
  left: 0;
  font-size: clamp(8px, 1.2vw, 10px);
}

.result-stat {
  font-size: clamp(9px, 1.4vw, 11px);
  font-weight: 700;
  color: #34a853;
  background: rgba(52, 168, 83, 0.08);
  padding: clamp(4px, 1vw, 6px) clamp(6px, 1.5vw, 8px);
  border-radius: 12px;
  text-align: center;
  border: 1px solid rgba(52, 168, 83, 0.18);
  margin-top: clamp(4px, 1vw, 6px);
  flex-shrink: 0;
}

/* Metrics Grid - Slide 7 */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(150px, 20vw, 200px), 1fr));
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: clamp(20px, 3vw, 30px);
}

.metric-large {
  text-align: center;
  background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
  color: white;
  padding: clamp(15px, 3vw, 25px) clamp(10px, 2vw, 15px);
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: clamp(80px, 15vw, 120px);
}

.metric-number {
  font-size: clamp(24px, 4.5vw, 36px);
  font-weight: 700;
  line-height: 1;
  margin-bottom: clamp(4px, 1vw, 8px);
}

.metric-label {
  font-size: clamp(10px, 1.8vw, 14px);
  opacity: 0.9;
  line-height: 1.2;
}

.metric-note {
  font-size: clamp(8px, 1.2vw, 10px);
  opacity: 0.7;
  margin-top: clamp(4px, 1vw, 6px);
}

.results-section h3 {
  font-size: clamp(16px, 2.8vw, 22px);
  color: #202124;
  margin: 0 0 clamp(15px, 2.5vw, 20px) 0;
  text-align: center;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(120px, 18vw, 160px), 1fr));
  gap: clamp(10px, 2vw, 15px);
}

.result-item {
  background: white;
  border-radius: 12px;
  padding: clamp(10px, 2vw, 12px);
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  border: 1px solid #f1f3f4;
  transition: transform 0.2s ease;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: clamp(60px, 12vw, 80px);
}

.result-number {
  font-size: clamp(20px, 3.5vw, 28px);
  font-weight: 700;
  color: #34a853;
  line-height: 1;
  margin-bottom: clamp(4px, 1vw, 6px);
}

.result-text {
  font-size: clamp(9px, 1.4vw, 11px);
  color: #5f6368;
  line-height: 1.2;
}

/* Market Overview - Slide 8 */
.market-overview {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 2.5vw, 20px);
  flex: 1;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  padding-right: 8px;
}

.market-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(150px, 25vw, 200px), 1fr));
  gap: clamp(12px, 2vw, 20px);
}

.market-stat {
  text-align: center;
  background: linear-gradient(135deg, #34a853 0%, #4caf50 100%);
  color: white;
  padding: clamp(15px, 3vw, 25px) clamp(10px, 2vw, 15px);
  border-radius: 16px;
  box-shadow: 0 4px 15px rgba(52, 168, 83, 0.3);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: clamp(70px, 12vw, 100px);
}

.stat-big {
  font-size: clamp(24px, 4.5vw, 32px);
  font-weight: 700;
  line-height: 1;
  margin-bottom: clamp(4px, 1vw, 8px);
}

.stat-desc {
  font-size: clamp(10px, 1.6vw, 12px);
  opacity: 0.9;
  line-height: 1.2;
}

.market-structure,
.market-opportunity {
  background: #f8f9fa;
  border-radius: 12px;
  padding: clamp(12px, 2.5vw, 20px);
  border-left: 4px solid #1a73e8;
}

.market-structure h3,
.market-opportunity h3 {
  font-size: clamp(14px, 2.2vw, 18px);
  color: #202124;
  margin: 0 0 clamp(10px, 2vw, 15px) 0;
}

.structure-bars {
  display: flex;
  flex-direction: column;
  gap: clamp(8px, 1.5vw, 12px);
}

.structure-item {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.5vw, 12px);
}

.structure-bar {
  height: clamp(12px, 2vw, 16px);
  background: linear-gradient(90deg, #1a73e8, #4285f4);
  border-radius: 8px;
  min-width: 20px;
  flex-shrink: 0;
}

.structure-item span {
  font-size: clamp(10px, 1.6vw, 12px);
  color: #5f6368;
  line-height: 1.2;
}

.market-opportunity ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(4px, 1vw, 6px);
}

.market-opportunity li {
  font-size: clamp(11px, 1.8vw, 13px);
  color: #5f6368;
  padding: clamp(3px, 0.8vw, 5px) 0 clamp(3px, 0.8vw, 5px) clamp(16px, 2.5vw, 20px);
  position: relative;
  line-height: 1.3;
}

.market-opportunity li:before {
  content: "✓";
  color: #34a853;
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* Scrollbar styling for overflow content */
.features-grid::-webkit-scrollbar,
.audio-features::-webkit-scrollbar,
.market-overview::-webkit-scrollbar {
  width: 6px;
}

.features-grid::-webkit-scrollbar-track,
.audio-features::-webkit-scrollbar-track,
.market-overview::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.features-grid::-webkit-scrollbar-thumb,
.audio-features::-webkit-scrollbar-thumb,
.market-overview::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 3px;
}

.features-grid::-webkit-scrollbar-thumb:hover,
.audio-features::-webkit-scrollbar-thumb:hover,
.market-overview::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

/* Comparison Table - Slide 6 */
.comparison-table {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2px;
  background: #e8eaed;
  border-radius: 12px;
  overflow: hidden;
  flex: 1;
  align-content: start;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
}

.comparison-header {
  display: contents;
}

.comparison-row {
  display: contents;
}

.comparison-cell {
  background: white;
  padding: clamp(12px, 2vw, 16px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: clamp(11px, 1.6vw, 14px);
  min-height: clamp(40px, 6vw, 50px);
}

.comparison-header .comparison-cell {
  background: #1a73e8;
  color: white;
  font-weight: 600;
  font-size: clamp(12px, 1.8vw, 16px);
}

.comparison-cell.param {
  background: #f8f9fa;
  font-weight: 500;
  color: #202124;
}

.comparison-cell.competitor {
  background: #fce8e6;
  color: #d93025;
}

.comparison-cell.us {
  background: #e6f4ea;
  color: #137333;
  font-weight: 600;
}

/* Investment Slide - Slide 9 */
.slide-final .slide-content {
  justify-content: center;
}

.investment-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 30px);
  align-items: center;
  max-width: 800px;
  margin: 0 auto;
}

.investment-main h2 {
  font-size: clamp(20px, 4vw, 28px);
  color: #202124;
  margin: 0 0 clamp(20px, 3vw, 25px) 0;
  text-align: center;
}

.investment-main img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

/* Navigation */
.presentation-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: clamp(15px, 3vw, 20px);
  background: white;
  border-top: 1px solid #e0e0e0;
  gap: clamp(20px, 4vw, 30px);
}

.nav-btn {
  background: #1a73e8;
  color: white;
  border: none;
  border-radius: 50%;
  width: var(--nav-btn-size);
  height: var(--nav-btn-size);
  font-size: clamp(16px, 3vw, 20px);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-btn:hover {
  background: #1557b0;
  transform: scale(1.1);
}

.nav-btn:disabled {
  background: #dadce0;
  cursor: not-allowed;
  transform: none;
}

.slide-indicators {
  display: flex;
  gap: clamp(8px, 1.5vw, 12px);
}

.indicator {
  width: var(--indicator-size);
  height: var(--indicator-size);
  border-radius: 50%;
  background: #dadce0;
  cursor: pointer;
  transition: all 0.2s ease;
}

.indicator.active {
  background: #1a73e8;
  transform: scale(1.2);
}

.indicator:hover {
  background: #4285f4;
}

/* Progress Bar */
.progress-bar {
  height: 4px;
  background: #e0e0e0;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #1a73e8, #4285f4);
  transition: width 0.4s ease;
}

/* Responsive Design */
@media (max-width: 1200px) {
  .slide {
    padding: var(--slide-padding-vertical) var(--slide-padding-horizontal);
  }
  
  .content-grid,
  .solution-grid,
  .investment-content {
    gap: var(--grid-gap);
  }
}

@media (max-width: 768px) {
  .presentation-header {
    padding: var(--header-padding) clamp(12px, 2.5vw, 16px);
  }
  
  .header-right {
    gap: clamp(6px, 1.2vw, 8px);
  }
  
  .slide {
    padding: clamp(15px, 3vw, 20px) clamp(18px, 3.5vw, 24px);
  }
  
  .title-stats {
    flex-direction: column;
    gap: clamp(20px, 4vw, 30px);
  }
  
  .content-grid,
  .solution-grid,
  .features-grid,
  .metrics-grid,
  .results-grid,
  .market-overview,
  .investment-content {
    grid-template-columns: 1fr;
    gap: clamp(20px, 4vw, 30px);
  }
  
  .solution-features {
    flex-direction: column;
  }
  
  .comparison-table {
    font-size: clamp(10px, 1.5vw, 14px);
  }
  
  .comparison-cell {
    padding: clamp(8px, 1.5vw, 12px) clamp(6px, 1.2vw, 8px);
    min-height: clamp(35px, 5vw, 50px);
  }
  
  .audio-features {
    grid-template-columns: 1fr;
    gap: clamp(12px, 2.5vw, 18px);
  }
  
  .audio-feature {
    flex-direction: row;
    padding: clamp(10px, 2vw, 14px) clamp(8px, 1.5vw, 10px);
  }
  
  .contact-buttons {
    flex-direction: column;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: clamp(15px, 3vw, 20px);
  }
  
  .results-grid {
    grid-template-columns: 1fr;
    gap: clamp(15px, 3vw, 20px);
  }
}

@media (max-width: 480px) {
  .slide {
    padding: clamp(10px, 2.5vw, 15px) clamp(12px, 3vw, 18px);
  }
  
  .slide-title-main {
    font-size: clamp(24px, 8vw, 32px);
  }
  
  .slide-subtitle {
    font-size: clamp(14px, 4vw, 18px);
  }
  
  .big-number {
    font-size: clamp(32px, 10vw, 48px);
  }
  
  .stat-number {
    font-size: clamp(24px, 6vw, 32px);
  }
  
  .feature-card {
    padding: clamp(15px, 4vw, 20px);
  }
  
  .metric-large {
    padding: clamp(20px, 6vw, 30px) clamp(10px, 3vw, 15px);
  }
  
  .market-stat {
    padding: clamp(20px, 6vw, 30px) clamp(10px, 3vw, 15px);
  }
  
  .nav-btn {
    width: clamp(35px, 8vw, 40px);
    height: clamp(35px, 8vw, 40px);
    font-size: clamp(14px, 4vw, 16px);
  }
  
  .presentation-nav {
    padding: clamp(10px, 3vw, 15px);
    gap: clamp(15px, 4vw, 20px);
  }
  
  .slide-indicators {
    gap: clamp(6px, 2vw, 8px);
  }
  
  .indicator {
    width: clamp(6px, 2vw, 8px);
    height: clamp(6px, 2vw, 8px);
  }
}

@media (max-width: 360px) {
  .slide {
    padding: clamp(8px, 2vw, 12px) clamp(10px, 2.5vw, 15px);
  }
  
  .slide-title-main {
    font-size: clamp(20px, 10vw, 28px);
  }
  
  .slide-subtitle {
    font-size: clamp(12px, 5vw, 16px);
  }
  
  .big-number {
    font-size: clamp(28px, 12vw, 40px);
  }
  
  .stat-number {
    font-size: clamp(20px, 8vw, 28px);
  }
  
  .feature-card {
    padding: clamp(12px, 5vw, 16px);
  }
  
  .metric-large {
    padding: clamp(15px, 8vw, 25px) clamp(8px, 4vw, 12px);
  }
  
  .market-stat {
    padding: clamp(15px, 8vw, 25px) clamp(8px, 4vw, 12px);
  }
  
  .nav-btn {
    width: clamp(30px, 10vw, 35px);
    height: clamp(30px, 10vw, 35px);
    font-size: clamp(12px, 5vw, 14px);
  }
  
  .presentation-nav {
    padding: clamp(8px, 4vw, 12px);
    gap: clamp(12px, 5vw, 15px);
  }
  
  .slide-indicators {
    gap: clamp(4px, 3vw, 6px);
  }
  
  .indicator {
    width: clamp(5px, 3vw, 6px);
    height: clamp(5px, 3vw, 6px);
  }
}

/* Landscape orientation adjustments */
@media (max-height: 600px) and (orientation: landscape) {
  .slide {
    padding: clamp(10px, 2vw, 15px) var(--slide-padding-horizontal);
  }
  
  .slide-title-main {
    font-size: clamp(24px, 8vw, 36px);
  }
  
  .slide-subtitle {
    font-size: clamp(14px, 4vw, 20px);
  }
  
  .title-stats {
    gap: clamp(15px, 3vw, 25px);
    margin: clamp(15px, 3vw, 25px) 0;
  }
  
  .stat-number {
    font-size: clamp(20px, 6vw, 32px);
  }
  
  .big-number {
    font-size: clamp(32px, 10vw, 48px);
  }
  
  .content-grid,
  .solution-grid,
  .features-grid {
    gap: clamp(15px, 3vw, 25px);
  }
  
  .feature-card {
    padding: clamp(12px, 3vw, 18px);
  }
  
  .metric-large {
    padding: clamp(15px, 4vw, 25px) clamp(10px, 2.5vw, 15px);
  }
  
  .market-stat {
    padding: clamp(15px, 4vw, 25px) clamp(10px, 2.5vw, 15px);
  }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .slide {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* Print styles */
@media print {
  .presentation-header,
  .presentation-nav,
  .progress-bar {
    display: none;
  }
  
  .presentation-container {
    height: auto;
  }
  
 .presentation-main {
    margin: 0;
    box-shadow: none;
  }
  
  .slide {
    position: static;
    opacity: 1;
    transform: none;
    page-break-after: always;
    padding: 20px;
  }
  
  .slide:last-child {
    page-break-after: avoid;
  }
}

/* Improve touch feedback on mobile */
@media (hover: none) and (pointer: coarse) {
  .btn:hover,
  .nav-btn:hover,
  .indicator:hover {
    transform: none;
  }
  
  .btn:active,
  .nav-btn:active,
  .indicator:active {
    transform: scale(0.95);
  }
}

/* Scrollable content improvements */
.features-grid,
.audio-features,
.market-overview,
.comparison-table {
  scrollbar-width: thin;
  scrollbar-color: #c1c1c1 #f1f1f1;
  position: relative;
}

/* Custom scrollbar for webkit browsers */
.features-grid::-webkit-scrollbar,
.audio-features::-webkit-scrollbar,
.market-overview::-webkit-scrollbar,
.comparison-table::-webkit-scrollbar {
  width: 6px;
}

.features-grid::-webkit-scrollbar-track,
.audio-features::-webkit-scrollbar-track,
.market-overview::-webkit-scrollbar-track,
.comparison-table::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.features-grid::-webkit-scrollbar-thumb,
.audio-features::-webkit-scrollbar-thumb,
.market-overview::-webkit-scrollbar-thumb,
.comparison-table::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 3px;
}

.features-grid::-webkit-scrollbar-thumb:hover,
.audio-features::-webkit-scrollbar-thumb:hover,
.market-overview::-webkit-scrollbar-thumb:hover,
.comparison-table::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

/* Scroll indicators */
.scroll-indicator {
  position: absolute;
  background: rgba(26, 115, 232, 0.8);
  color: white;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  z-index: 10;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.scroll-indicator:hover {
  background: rgba(26, 115, 232, 1);
  transform: scale(1.1);
}

.scroll-indicator.scroll-up {
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-indicator.scroll-down {
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
}

/* Improve content layout for better fit */
.slide-content {
  width: 100%;
  max-width: 1200px;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Ensure slide titles don't take too much space */
.slide-title:not(.slide-title-main) {
  font-size: clamp(24px, 4.5vw, 32px);
  font-weight: 600;
  color: #202124;
  margin: 0 0 clamp(15px, 2.5vw, 20px) 0;
  border-bottom: 3px solid #1a73e8;
  padding-bottom: clamp(8px, 1.5vw, 12px);
  flex-shrink: 0;
}

/* Optimize grid layouts for better space usage */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(180px, 22vw, 250px), 1fr));
  gap: clamp(10px, 1.8vw, 16px);
  flex: 1;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
  padding-right: 8px;
}

.audio-features {
  display: flex;
  flex-direction: column;
  gap: clamp(6px, 1.2vw, 10px);
  flex: 1;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  padding-right: 8px;
}

.market-overview {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 2.5vw, 20px);
  flex: 1;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  padding-right: 8px;
}

.comparison-table {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2px;
  background: #e8eaed;
  border-radius: 12px;
  overflow: hidden;
  flex: 1;
  align-content: start;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
}

/* Responsive adjustments for better fit */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
    max-height: calc(100vh - 140px);
  }
  
  .audio-features {
    max-height: calc(100vh - 120px);
  }
  
  .market-overview {
    max-height: calc(100vh - 120px);
  }
  
  .comparison-table {
    max-height: calc(100vh - 140px);
  }
  
  .slide-title:not(.slide-title-main) {
    font-size: clamp(20px, 4vw, 24px);
    margin-bottom: clamp(10px, 2vw, 15px);
  }
}

@media (max-width: 480px) {
  .features-grid {
    max-height: calc(100vh - 120px);
  }
  
  .audio-features {
    max-height: calc(100vh - 100px);
  }
  
  .market-overview {
    max-height: calc(100vh - 100px);
  }
  
  .comparison-table {
    max-height: calc(100vh - 120px);
  }
  
  .scroll-indicator {
    width: 25px;
    height: 25px;
    font-size: 12px;
  }
}

/* Landscape mode adjustments */
@media (max-height: 600px) and (orientation: landscape) {
  .features-grid {
    max-height: calc(100vh - 100px);
  }
  
  .audio-features {
    max-height: calc(100vh - 80px);
  }
  
  .market-overview {
    max-height: calc(100vh - 80px);
  }
  
  .comparison-table {
    max-height: calc(100vh - 100px);
  }
  
  .slide-title:not(.slide-title-main) {
    font-size: clamp(18px, 3.5vw, 22px);
    margin-bottom: clamp(8px, 1.5vw, 12px);
  }
}