/* Cascade Layers Order Declaration */
@layer reset, base, theme, layout, components, utilities;

@layer reset {
  /* Box sizing rules for specific elements instead of global '*' */
  html, body, div, span, applet, object, iframe,
  h1, h2, h3, h4, h5, h6, p, blockquote, pre,
  a, abbr, acronym, address, big, cite, code,
  del, dfn, em, img, ins, kbd, q, s, samp,
  small, strike, strong, sub, sup, tt, var,
  b, u, i, center, dl, dt, dd, ol, ul, li,
  fieldset, form, label, legend, table, caption, 
  tbody, tfoot, thead, tr, th, td, article, 
  aside, canvas, details, embed, figure, figcaption, 
  footer, header, hgroup, menu, nav, output, ruby, 
  section, summary, time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
    box-sizing: border-box;
  }

  /* HTML5 display-role reset for older browsers */
  article, aside, details, figcaption, figure, 
  footer, header, hgroup, menu, nav, section {
    display: block;
  }

  body {
    line-height: 1.5;
  }

  ol, ul {
    list-style: none;
  }

  blockquote, q {
    quotes: none;
  }

  blockquote:before, blockquote:after,
  q:before, q:after {
    content: '';
    content: none;
  }

  table {
    border-collapse: collapse;
    border-spacing: 0;
  }

  /* Form elements reset */
  input, button, select, textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    margin: 0;
    box-sizing: border-box;
  }

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

@layer theme {
  :root {
    /* Color Palette Tokens (Tier 1) */
    --color-gray-950: #080a0c;
    --color-gray-900: #0c0f12;
    --color-gray-800: #171d24;
    --color-gray-700: #232d38;
    --color-gray-400: #64748b;
    --color-gray-300: #94a3b8;
    --color-gray-100: #f1f5f9;
    
    --color-brand-rgb: 44 156 85;
    --color-lime-neon: rgb(var(--color-brand-rgb));
    --color-lime-glow: rgb(var(--color-brand-rgb) / 0.15);
    --color-lime-hover: rgb(55 186 103);
    
    --color-cyan-glow: #00f0ff;
    --color-violet-glow: #7000ff;

    /* Semantic Design Tokens (Tier 2) */
    --bg-primary: var(--color-gray-950);
    --bg-surface: rgba(23, 29, 36, 0.4);
    --bg-surface-border: rgba(255, 255, 255, 0.07);
    
    --text-primary: var(--color-gray-100);
    --text-muted: var(--color-gray-300);
    --text-subtle: var(--color-gray-400);
    
    --accent-color: var(--color-lime-neon);
    --accent-glow: var(--color-lime-glow);
    
    /* Font Tokens */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Animation Tokens */
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Browser Color Scheme */
    color-scheme: dark;
  }
}

@layer base {
  body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-block-size: 100dvh;
    overflow-x: hidden;
    position: relative;
  }

  /* Custom Scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
  }
  
  ::-webkit-scrollbar-track {
    background: var(--bg-primary);
  }
  
  ::-webkit-scrollbar-thumb {
    background: var(--color-gray-700);
    border-radius: 4px;
  }
  
  ::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
  }
}

@layer layout {
  .page-wrapper {
    display: flex;
    flex-direction: column;
    min-block-size: 100dvh;
    padding: 2rem;
    position: relative;
    z-index: 10;
    max-inline-size: 1200px;
    margin-inline: auto;
  }

  .main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-block: 4rem;
  }

  .header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }

  .footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    width: 100%;
    padding-block-start: 2rem;
    border-block-start: 1px solid rgba(255, 255, 255, 0.05);
  }
}

@layer components {
  /* 1. Animated Background Blobs */
  .bg-glow-container {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
  }

  .glow-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.35;
    mix-blend-mode: screen;
  }

  .glow-blob-1 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, var(--color-violet-glow) 0%, transparent 70%);
    top: -10%;
    left: -10%;
    animation: float-slow 25s infinite alternate ease-in-out;
  }

  .glow-blob-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--color-cyan-glow) 0%, transparent 70%);
    bottom: -15%;
    right: -10%;
    animation: float-slow 30s infinite alternate-reverse ease-in-out;
  }

  .glow-blob-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float-mid 20s infinite alternate ease-in-out;
  }

  @keyframes float-slow {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(80px, 40px) scale(1.1); }
    100% { transform: translate(-40px, 80px) scale(0.9); }
  }

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

  /* 2. Header Elements */
  .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    text-decoration: none;
    transition: transform var(--transition-fast);
  }

  .logo:hover {
    transform: translateY(-1px);
  }

  .logo-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
  }

  .logo-body-fill {
    fill: var(--text-primary);
    transition: fill var(--transition-fast);
  }

  .logo:hover .logo-body-fill {
    fill: var(--accent-color);
  }

  .logo-leaf-fill {
    fill: var(--accent-color);
  }

  .logo-text {
    display: inline-flex;
    align-items: baseline;
  }

  .logo-text span {
    color: var(--accent-color);
  }

  .custom-i {
    position: relative;
    display: inline-block;
    color: var(--text-primary);
  }

  .i-leaf {
    position: absolute;
    top: -0.1em;
    left: 0.05em;
    width: 0.35em;
    height: 0.35em;
    background-color: var(--accent-color);
    border-radius: 0 100% 0 100%;
    transform: rotate(35deg);
  }

  .badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--bg-surface-border);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-muted);
  }

  .pulse-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-color);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-color);
    animation: pulse 1.8s infinite ease-in-out;
  }

  @keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; box-shadow: 0 0 0 0 rgb(var(--color-brand-rgb) / 0.7); }
    50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 10px 4px rgb(var(--color-brand-rgb) / 0); }
    100% { transform: scale(0.9); opacity: 0.6; box-shadow: 0 0 0 0 rgb(var(--color-brand-rgb) / 0); }
  }

  /* 3. Hero Section */
  .hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-inline-size: 800px;
  }

  .hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-block-end: 1.5rem;
  }

  .gradient-text {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
  }

  .hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-muted);
    max-inline-size: 600px;
    margin-block-end: 3.5rem;
    line-height: 1.6;
  }

  /* 4. Countdown Card System */
  .countdown-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    width: 100%;
    max-inline-size: 550px;
    margin-block-end: 4rem;
  }

  .countdown-card {
    background: var(--bg-surface);
    border: 1px solid var(--bg-surface-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    transition: transform var(--transition-smooth), border-color var(--transition-smooth);
  }

  .countdown-card:hover {
    transform: translateY(-5px);
    border-color: rgb(var(--color-brand-rgb) / 0.25);
    box-shadow: 0 15px 35px rgb(var(--color-brand-rgb) / 0.05);
  }

  .countdown-value {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1;
    margin-block-end: 0.25rem;
  }

  .countdown-label {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
  }

  /* 5. Subscription Form styling */
  .form-container {
    width: 100%;
    max-inline-size: 550px;
    position: relative;
    min-block-size: 80px; /* Previene CLS al mostrar el éxito */
  }

  .subscription-form {
    width: 100%;
    transition: opacity var(--transition-smooth), transform var(--transition-smooth);
  }

  .subscription-form.hidden {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    position: absolute;
    width: 100%;
  }

  .input-group {
    display: flex;
    background: var(--bg-surface);
    border: 1px solid var(--bg-surface-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 0.35rem;
    gap: 0.35rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
  }

  .input-group:focus-within {
    border-color: rgb(var(--color-brand-rgb) / 0.4);
    box-shadow: 0 10px 30px rgb(var(--color-brand-rgb) / 0.08);
  }

  .subscription-form input[type="email"] {
    flex-grow: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 0.8rem 1.2rem;
    outline: none;
    font-size: 0.95rem;
    width: 100%;
  }

  .subscription-form input[type="email"]::placeholder {
    color: var(--text-subtle);
  }

  .submit-btn {
    background: var(--accent-color);
    color: var(--color-gray-950);
    font-weight: 700;
    font-family: var(--font-heading);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
  }

  .submit-btn:hover:not(:disabled) {
    background-color: var(--color-lime-hover);
    transform: scale(1.02);
  }

  .submit-btn:active:not(:disabled) {
    transform: scale(0.98);
  }

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

  .arrow-icon {
    transition: transform var(--transition-fast);
  }

  .submit-btn:hover .arrow-icon {
    transform: translateX(4px);
  }

  .error-msg {
    color: #ff4a4a;
    font-size: 0.8rem;
    margin-block-start: 0.5rem;
    text-align: left;
    padding-inline-start: 1rem;
    min-height: 1.2rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
  }

  .error-msg.visible {
    opacity: 1;
  }

  /* 6. Success State Card */
  .success-card {
    background: rgb(var(--color-brand-rgb) / 0.03);
    border: 1px solid rgb(var(--color-brand-rgb) / 0.2);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 1.75rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    text-align: left;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity var(--transition-smooth), transform var(--transition-smooth);
    pointer-events: none;
    position: absolute;
    inset: 0;
    box-shadow: 0 15px 35px rgb(var(--color-brand-rgb) / 0.03);
  }

  .success-card.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    position: relative;
  }

  .success-icon {
    background: var(--accent-color);
    color: var(--color-gray-950);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 15px var(--accent-glow);
  }

  .success-text h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-block-end: 0.25rem;
    color: var(--text-primary);
  }

  .success-text p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.4;
  }

  /* 7. Footer / Social Media */
  .social-links {
    display: flex;
    gap: 1rem;
  }

  .social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-surface);
    border: 1px solid var(--bg-surface-border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 50%;
    color: var(--text-muted);
    transition: all var(--transition-smooth);
  }

  .social-btn:hover {
    color: var(--color-gray-950);
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgb(var(--color-brand-rgb) / 0.15);
  }

  .social-btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
  }

  .copyright {
    font-size: 0.8rem;
    color: var(--text-subtle);
  }
}

@layer utilities {
  /* Accessibility focus ring fallback */
  :focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
  }

  /* Disable animations if user prefers reduced motion */
  @media (prefers-reduced-motion: reduce) {
    .glow-blob, .pulse-dot, .countdown-card, .submit-btn, .social-btn {
      animation: none !important;
      transition: none !important;
      transform: none !important;
    }
  }

  /* Touch target sizes on coarse pointers (Touch Devices) */
  @media (pointer: coarse) {
    .social-btn {
      width: 48px;
      height: 48px;
    }
    
    .submit-btn {
      padding-block: 0.95rem;
    }
  }

  /* Mobile Layout Adjustments */
  @media (max-width: 500px) {
    .countdown-container {
      gap: 0.75rem;
    }
    
    .countdown-card {
      padding: 1rem 0.5rem;
      border-radius: 12px;
    }

    .input-group {
      flex-direction: column;
      background: transparent;
      border: none;
      box-shadow: none;
      gap: 0.75rem;
      padding: 0;
    }

    .input-group input[type="email"] {
      background: var(--bg-surface);
      border: 1px solid var(--bg-surface-border);
      border-radius: 10px;
      padding-block: 0.9rem;
    }

    .submit-btn {
      width: 100%;
      justify-content: center;
      padding-block: 0.9rem;
      border-radius: 10px;
    }

    .success-card {
      flex-direction: column;
      text-align: center;
      align-items: center;
      padding: 1.5rem;
    }
    
    .page-wrapper {
      padding: 1.5rem 1rem;
    }

    .header {
      flex-direction: column;
      gap: 1rem;
    }
  }
}