@layer reset, base, components, utilities;

@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
  }

  * {
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
    text-size-adjust: 100%;
  }

  body {
    min-height: 100vh;
  }

  img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
  }

  input, button, textarea, select {
    font: inherit;
  }

  button {
    border: none;
    background: none;
    padding: 0;
  }

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

  ul, ol {
    list-style: none;
  }
}

:root {
  --color-background: #f9fbff;
  --color-surface: #ffffff;
  --color-surface-muted: #f1f4ff;
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-primary: #2563eb;
  --color-primary-soft: #e0ecff;
  --color-primary-dark: #1d4ed8;
  --color-accent: #fb923c;
  --color-accent-soft: #ffe8d6;
  --color-success: #22c55e;
  --color-success-soft: #dcfce7;
  --color-warning: #facc15;
  --color-warning-soft: #fef9c3;
  --color-danger: #ef4444;
  --color-danger-soft: #fee2e2;
  --color-border-subtle: #e5e7eb;
  --color-border-strong: #cbd5f5;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2933;
  --gray-900: #111827;

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-display: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --radius-xs: 0.25rem;
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-pill: 999px;

  --shadow-xs: 0 4px 10px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 10px 25px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 18px 45px rgba(15, 23, 42, 0.12);

  --transition-fast: 150ms ease-out;
  --transition-base: 220ms cubic-bezier(0.22, 0.61, 0.36, 1);
  --transition-slow: 350ms cubic-bezier(0.16, 1, 0.3, 1);

  --gradient-hero: radial-gradient(circle at top left, #dbeafe 0%, #eff6ff 30%, #fef3c7 70%, #ffedd5 100%);
  --gradient-card: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(251, 146, 60, 0.06));
  --gradient-primary: linear-gradient(135deg, #2563eb, #38bdf8);
  --gradient-accent: linear-gradient(135deg, #fb923c, #f97316);
}

@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@layer base {
  body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background: var(--color-background);
    -webkit-font-smoothing: antialiased;
  }

  main {
    min-height: calc(100vh - 6rem);
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
  }

  h1 {
    font-size: clamp(2.1rem, 3.2vw, 3rem);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-4);
  }

  h2 {
    font-size: clamp(1.6rem, 2.4vw, 2.25rem);
    line-height: var(--line-height-snug);
    margin-bottom: var(--space-3);
  }

  h3 {
    font-size: clamp(1.3rem, 2vw, 1.75rem);
    line-height: var(--line-height-snug);
    margin-bottom: var(--space-2);
  }

  h4 {
    font-size: 1.125rem;
    margin-bottom: var(--space-2);
  }

  p {
    margin-bottom: var(--space-3);
    color: var(--color-text-muted);
  }

  strong {
    font-weight: 600;
  }

  a {
    transition: color var(--transition-fast), background-color var(--transition-fast), opacity var(--transition-fast);
  }

  a:focus-visible {
    outline: 2px solid transparent;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.6);
    border-radius: var(--radius-xs);
  }

  button:focus-visible,
  [role="button"]:focus-visible,
  input:focus-visible,
  select:focus-visible,
  textarea:focus-visible {
    outline: 2px solid transparent;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.7);
  }

  ::selection {
    background: rgba(37, 99, 235, 0.12);
    color: var(--color-text);
  }
}

@layer components {
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.4rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), border-color var(--transition-fast), color var(--transition-fast);
    background: var(--color-surface);
    color: var(--color-text);
  }

  .btn-primary {
    background-image: var(--gradient-primary);
    color: #ffffff;
    box-shadow: var(--shadow-md);
  }

  .btn-accent {
    background-image: var(--gradient-accent);
    color: #111827;
    box-shadow: var(--shadow-md);
  }

  .btn-ghost {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(148, 163, 184, 0.4);
    backdrop-filter: blur(6px);
  }

  .btn-lg {
    padding: 0.9rem 1.75rem;
    font-size: 1rem;
  }

  .btn-sm {
    padding: 0.55rem 1.05rem;
    font-size: 0.85rem;
  }

  .btn:hover:not(:disabled) {
    transform: translateY(-1px) scale(1.01);
    box-shadow: 0 22px 45px rgba(15, 23, 42, 0.22);
  }

  .btn:active:not(:disabled) {
    transform: translateY(0) scale(0.99);
    box-shadow: var(--shadow-sm);
  }

  .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
  }

  .btn-download {
    background-image: var(--gradient-accent);
    color: #111827;
    box-shadow: 0 16px 40px rgba(248, 153, 61, 0.35);
  }

  .btn-download:hover:not(:disabled) {
    box-shadow: 0 20px 55px rgba(248, 153, 61, 0.45);
  }

  .input,
  input[type="text"],
  input[type="email"],
  input[type="search"],
  input[type="tel"],
  input[type="password"],
  select,
  textarea {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-subtle);
    padding: 0.7rem 0.9rem;
    font-size: 0.95rem;
    background-color: #ffffff;
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
  }

  .input::placeholder,
  input::placeholder,
  textarea::placeholder {
    color: var(--gray-400);
  }

  .input:focus,
  input:focus,
  select:focus,
  textarea:focus {
    border-color: rgba(37, 99, 235, 0.8);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.4);
    outline: none;
  }

  textarea {
    min-height: 150px;
    resize: vertical;
  }

  .card {
    position: relative;
    background: radial-gradient(circle at top left, rgba(255, 255, 255, 1), rgba(239, 246, 255, 0.9));
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(148, 163, 184, 0.22);
    backdrop-filter: blur(8px);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-fast), background var(--transition-slow);
    overflow: hidden;
  }

  .card::before {
    content: "";
    position: absolute;
    inset: -40%;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.16), transparent 55%), radial-gradient(circle at bottom left, rgba(251, 146, 60, 0.16), transparent 55%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: -1;
  }

  .card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(59, 130, 246, 0.35);
  }

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

  .card-header {
    margin-bottom: var(--space-3);
  }

  .card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
  }

  .card-meta {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-400);
  }

  .hero {
    position: relative;
    padding: var(--space-10) 0 var(--space-12);
    background: var(--gradient-hero);
    overflow: hidden;
  }

  .hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.12) 0, transparent 55%), radial-gradient(circle at 80% 10%, rgba(59, 130, 246, 0.08) 0, transparent 50%), radial-gradient(circle at 90% 80%, rgba(251, 146, 60, 0.16) 0, transparent 52%);
    opacity: 0.85;
    pointer-events: none;
  }

  .hero-inner {
    position: relative;
    z-index: 1;
  }

  .hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-pill);
    background: rgba(15, 23, 42, 0.7);
    color: #e5e7eb;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
  }

  .hero-title {
    margin-top: var(--space-3);
    margin-bottom: var(--space-3);
  }

  .hero-subtitle {
    max-width: 38rem;
    font-size: 0.98rem;
  }

  .hero-actions {
    margin-top: var(--space-4);
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    align-items: center;
  }

  .hero-download-note {
    font-size: 0.8rem;
    color: rgba(15, 23, 42, 0.78);
  }

  .sticky-cta {
    position: fixed;
    inset-inline: 0.75rem;
    bottom: 0.85rem;
    z-index: 40;
    display: flex;
    justify-content: center;
  }

  .sticky-cta-inner {
    max-width: 480px;
    width: 100%;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-pill);
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.6);
  }

  .sticky-cta-label {
    font-size: 0.8rem;
    color: #e5e7eb;
  }

  .sticky-cta .btn-download {
    padding-block: 0.65rem;
    padding-inline: 1.2rem;
    font-size: 0.85rem;
    white-space: nowrap;
  }

  @media (min-width: 768px) {
    .hero {
      padding: var(--space-12) 0 var(--space-16);
    }

    .sticky-cta {
      inset-inline: auto;
      right: 2rem;
      bottom: 1.75rem;
    }

    .sticky-cta-inner {
      max-width: none;
      width: auto;
    }
  }
}

@layer utilities {
  .container {
    width: 100%;
    margin-inline: auto;
    padding-inline: var(--space-4);
    max-width: 1120px;
  }

  @media (min-width: 768px) {
    .container {
      padding-inline: var(--space-6);
    }
  }

  .section {
    padding-block: var(--space-8);
  }

  @media (min-width: 768px) {
    .section {
      padding-block: var(--space-12);
    }
  }

  .section-header {
    margin-bottom: var(--space-5);
  }

  .section-kicker {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--gray-400);
    margin-bottom: 0.45rem;
  }

  .section-title {
    font-size: clamp(1.5rem, 2.2vw, 2rem);
    margin-bottom: 0.4rem;
  }

  .section-description {
    max-width: 36rem;
    font-size: 0.95rem;
  }

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

  .flex {
    display: flex;
  }

  .inline-flex {
    display: inline-flex;
  }

  .flex-col {
    flex-direction: column;
  }

  .flex-row {
    flex-direction: row;
  }

  .flex-wrap {
    flex-wrap: wrap;
  }

  .items-center {
    align-items: center;
  }

  .items-start {
    align-items: flex-start;
  }

  .items-end {
    align-items: flex-end;
  }

  .justify-center {
    justify-content: center;
  }

  .justify-between {
    justify-content: space-between;
  }

  .justify-start {
    justify-content: flex-start;
  }

  .gap-2 {
    gap: var(--space-2);
  }

  .gap-3 {
    gap: var(--space-3);
  }

  .gap-4 {
    gap: var(--space-4);
  }

  .gap-6 {
    gap: var(--space-6);
  }

  .grid {
    display: grid;
  }

  .grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .grid-auto-fit {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
  }

  @media (max-width: 767px) {
    .grid-2,
    .grid-3 {
      grid-template-columns: minmax(0, 1fr);
    }
  }

  .mt-0 {
    margin-top: 0;
  }

  .mt-2 {
    margin-top: var(--space-2);
  }

  .mt-3 {
    margin-top: var(--space-3);
  }

  .mt-4 {
    margin-top: var(--space-4);
  }

  .mt-6 {
    margin-top: var(--space-6);
  }

  .mb-0 {
    margin-bottom: 0;
  }

  .mb-2 {
    margin-bottom: var(--space-2);
  }

  .mb-3 {
    margin-bottom: var(--space-3);
  }

  .mb-4 {
    margin-bottom: var(--space-4);
  }

  .mb-6 {
    margin-bottom: var(--space-6);
  }

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

  .text-right {
    text-align: right;
  }

  .text-muted {
    color: var(--color-text-muted);
  }

  .badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.6rem;
    font-size: 0.75rem;
    border-radius: var(--radius-pill);
    background: rgba(37, 99, 235, 0.08);
    color: #1d4ed8;
  }

  .badge-accent {
    background: rgba(251, 146, 60, 0.12);
    color: #c2410c;
  }

  .pill-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.22rem 0.7rem;
    border-radius: var(--radius-pill);
    font-size: 0.78rem;
    background: rgba(15, 23, 42, 0.06);
    color: var(--gray-700);
  }

  .shadow-sm {
    box-shadow: var(--shadow-sm);
  }

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

  .rounded-md {
    border-radius: var(--radius-md);
  }

  .rounded-lg {
    border-radius: var(--radius-lg);
  }

  .bg-surface {
    background-color: var(--color-surface);
  }

  .bg-surface-muted {
    background-color: var(--color-surface-muted);
  }

  .bg-soft-primary {
    background: var(--color-primary-soft);
  }

  .bg-soft-accent {
    background: var(--color-accent-soft);
  }

  .bordered {
    border: 1px solid var(--color-border-subtle);
  }

  .fade-in-up {
    opacity: 0;
    transform: translateY(16px);
    animation: fade-in-up 540ms var(--transition-base) forwards;
  }

  @keyframes fade-in-up {
    0% {
      opacity: 0;
      transform: translateY(16px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }
}