:root {
      --color-bg-primary: #0a0a0a;
      --color-bg-secondary: #141414;
      --color-bg-card: #1a1a1a;
      --color-bg-hover: #262626;
      --color-text-primary: #ffffff;
      --color-text-secondary: #a3a3a3;
      --color-text-muted: #737373;
      --color-accent: #f97316;
      --color-accent-light: #fb923c;
      --color-accent-dark: #ea580c;
      --color-accent-transparent: rgba(249, 115, 22, 0.1);
      --color-accent-border: rgba(249, 115, 22, 0.3);
      --color-border: #262626;
      --color-border-light: #404040;
      --color-blue: #3b82f6;
      --color-green: #22c55e;
      --color-yellow: #eab308;
      --color-purple: #a855f7;
      --radius-sm: 0.375rem;
      --radius-md: 0.5rem;
      --radius-lg: 0.75rem;
      --radius-xl: 1rem;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--color-bg-primary);
      color: var(--color-text-primary);
      line-height: 1.6;
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
    }
    .container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 1rem; }
    @media (min-width: 640px) { .container { padding: 0 1.5rem; } }
    @media (min-width: 1024px) { .container { padding: 0 2rem; } }
    .text-gradient {
      background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.875rem 1.5rem;
      font-size: 1rem;
      font-weight: 600;
      border-radius: var(--radius-lg);
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    .btn-primary { background-color: var(--color-accent); color: white; }
    .btn-primary:hover { background-color: var(--color-accent-dark); transform: translateY(-2px); }
    .btn-outline { background-color: transparent; color: white; border: 1px solid var(--color-border-light); }
    .btn-outline:hover { background-color: var(--color-bg-hover); }
    .badge { display: inline-flex; align-items: center; padding: 0.25rem 0.75rem; font-size: 0.75rem; font-weight: 500; border-radius: 9999px; border: 1px solid transparent; }
    .badge-orange { background-color: var(--color-accent-transparent); color: var(--color-accent-light); border-color: var(--color-accent-border); }
    .badge-blue { background-color: rgba(59, 130, 246, 0.1); color: #60a5fa; border-color: rgba(59, 130, 246, 0.3); }
    .badge-green { background-color: rgba(34, 197, 94, 0.1); color: #4ade80; border-color: rgba(34, 197, 94, 0.3); }
    .badge-purple { background-color: rgba(168, 85, 247, 0.1); color: #c084fc; border-color: rgba(168, 85, 247, 0.3); }
    .badge-yellow { background-color: rgba(234, 179, 8, 0.1); color: #facc15; border-color: rgba(234, 179, 8, 0.3); }
    .section { padding: 5rem 0; }
    .section-header { text-align: center; margin-bottom: 3rem; }
    .section-tag { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1rem; background-color: var(--color-accent-transparent); border: 1px solid var(--color-accent-border); border-radius: 9999px; font-size: 0.875rem; font-weight: 500; color: var(--color-accent-light); margin-bottom: 1rem; }
    .section-title { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 1rem; }
    .section-description { max-width: 42rem; margin: 0 auto; color: var(--color-text-secondary); }
    ::-webkit-scrollbar { width: 8px; }
    ::-webkit-scrollbar-track { background: var(--color-bg-primary); }
    ::-webkit-scrollbar-thumb { background: var(--color-border-light); border-radius: 4px; }
    ::selection { background: rgba(249, 115, 22, 0.3); color: white; }
    img { max-width: 100%; height: auto; }

    /* Navbar */
    .navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 1.25rem 0; transition: all 0.3s ease; background: transparent; }
    .navbar.scrolled { background: rgba(10, 10, 10, 0.9); backdrop-filter: blur(12px); border-bottom: 1px solid var(--color-border); padding: 0.75rem 0; }
    .navbar-content { display: flex; align-items: center; justify-content: space-between; }
    .navbar-logo { display: flex; align-items: center; gap: 0.5rem; }
    .navbar-logo .logo-icon { width: 2.25rem; height: 2.25rem; background: var(--color-accent); border-radius: 0.5rem; display: flex; align-items: center; justify-content: center; color: white; }
    .navbar-logo .logo-text { font-size: 1.125rem; font-weight: 700; color: white; }
    .navbar-nav { display: none; align-items: center; gap: 0.25rem; }
    @media (min-width: 768px) { .navbar-nav { display: flex; } }
    .nav-link { padding: 0.5rem 1rem; color: var(--color-text-secondary); font-size: 0.875rem; font-weight: 500; border-radius: var(--radius-md); transition: all 0.15s ease; }
    .nav-link:hover { color: white; background: var(--color-bg-hover); }
    .menu-toggle { display: flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem; background: transparent; border: none; color: white; cursor: pointer; border-radius: var(--radius-md); }
    @media (min-width: 768px) { .menu-toggle { display: none; } }
    .menu-toggle:hover { background: var(--color-bg-hover); }
    .close-icon { display: none; }
    .menu-toggle.active .menu-icon { display: none; }
    .menu-toggle.active .close-icon { display: block; }
    .mobile-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(10, 10, 10, 0.98); backdrop-filter: blur(12px); padding: 1rem 0; border-bottom: 1px solid var(--color-border); }
    .mobile-menu.active { display: block; }
    .mobile-nav-link { display: block; padding: 0.875rem 1rem; color: var(--color-text-secondary); font-size: 1rem; font-weight: 500; border-radius: var(--radius-md); transition: all 0.15s ease; }
    .mobile-nav-link:hover { color: white; background: var(--color-bg-hover); }

    /* Hero */
    .hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; }
    .hero-bg { position: absolute; inset: 0; z-index: 0; }
    .hero-image { width: 100%; height: 100%; object-fit: cover; opacity: 0.6; }
    .hero-overlay { position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(10, 10, 10, 0.7) 0%, rgba(10, 10, 10, 0.5) 50%, rgba(10, 10, 10, 1) 100%); }
    .hero-content { position: relative; z-index: 10; text-align: center; padding: 8rem 0 4rem; }
    .hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1rem; background: var(--color-accent-transparent); border: 1px solid var(--color-accent-border); border-radius: 9999px; font-size: 0.875rem; font-weight: 500; color: var(--color-accent-light); margin-bottom: 2rem; }
    .hero-title { font-size: clamp(2.5rem, 8vw, 5rem); font-weight: 800; color: white; margin-bottom: 1.5rem; line-height: 1.1; }
    .hero-subtitle { font-size: clamp(1.125rem, 2.5vw, 1.5rem); color: var(--color-text-secondary); margin-bottom: 0.5rem; max-width: 42rem; margin-left: auto; margin-right: auto; }
    .hero-description { font-size: 1rem; color: var(--color-text-muted); margin-bottom: 2.5rem; max-width: 32rem; margin-left: auto; margin-right: auto; }
    .hero-buttons { display: flex; flex-direction: column; gap: 1rem; justify-content: center; margin-bottom: 4rem; }
    @media (min-width: 640px) { .hero-buttons { flex-direction: row; } }
    .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; max-width: 28rem; margin: 0 auto; }
    .stat-item { text-align: center; }
    .stat-value { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; color: var(--color-accent); line-height: 1; }
    .stat-label { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 0.5rem; }
    .scroll-indicator { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); z-index: 10; }
    .scroll-mouse { width: 1.5rem; height: 2.5rem; border: 2px solid var(--color-border-light); border-radius: 9999px; display: flex; justify-content: center; padding: 0.5rem; }
    .scroll-wheel { width: 0.375rem; height: 0.75rem; background: var(--color-accent); border-radius: 9999px; animation: bounce 1.5s infinite; }
    @keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(0.5rem); } }

    /* Calendar */
    .legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; margin-bottom: 2rem; }
    .legend-item { display: flex; align-items: center; gap: 0.5rem; padding: 0.375rem 0.875rem; background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: 9999px; font-size: 0.75rem; color: var(--color-text-muted); }
    .legend-icon { width: 1rem; height: 1rem; display: flex; align-items: center; justify-content: center; }
    .legend-icon.strength { color: var(--color-accent); }
    .legend-icon.cardio { color: var(--color-blue); }
    .legend-icon.rest { color: var(--color-purple); }
    .legend-icon.recovery { color: var(--color-green); }
    .legend-icon.sport { color: var(--color-yellow); }
    .days-grid { display: flex; flex-direction: column; gap: 1rem; max-width: 56rem; margin: 0 auto; }
    .day-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; transition: all 0.3s ease; }
    .day-card:hover { border-color: var(--color-border-light); }
    .day-card.active { box-shadow: 0 0 0 1px var(--color-accent-border); }
    .day-header { width: 100%; padding: 1.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; background: transparent; border: none; cursor: pointer; text-align: left; transition: background 0.15s ease; }
    .day-header:hover { background: rgba(38, 38, 38, 0.5); }
    .day-info { display: flex; align-items: center; gap: 1rem; }
    .day-icon { width: 3rem; height: 3rem; border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .day-icon.strength { background: var(--color-accent-transparent); color: var(--color-accent); }
    .day-icon.cardio { background: rgba(59, 130, 246, 0.1); color: var(--color-blue); }
    .day-icon.rest { background: rgba(168, 85, 247, 0.1); color: var(--color-purple); }
    .day-icon.recovery { background: rgba(34, 197, 94, 0.1); color: var(--color-green); }
    .day-icon.sport { background: rgba(234, 179, 8, 0.1); color: var(--color-yellow); }
    .day-text { flex: 1; }
    .day-title-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.25rem; flex-wrap: wrap; }
    .day-title-row h3 { font-size: 1.125rem; font-weight: 700; color: white; }
    .day-subtitle { font-size: 0.875rem; color: var(--color-text-muted); }
    .chevron { color: var(--color-text-muted); transition: transform 0.3s ease; flex-shrink: 0; }
    .day-card.active .chevron { transform: rotate(180deg); }
    .day-content { display: none; border-top: 1px solid var(--color-border); }
    .day-card.active .day-content { display: block; }
    .day-details { padding: 1.25rem; display: flex; flex-direction: column; gap: 1rem; }
    .detail-row { display: flex; align-items: flex-start; gap: 0.75rem; }
    .detail-icon { width: 2rem; height: 2rem; background: var(--color-bg-hover); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .detail-icon.clock, .detail-icon.activity { color: var(--color-accent); }
    .detail-icon.info { background: var(--color-accent-transparent); color: var(--color-accent); }
    .detail-text { flex: 1; }
    .detail-label { font-size: 0.875rem; font-weight: 500; color: var(--color-text-secondary); margin-bottom: 0.25rem; }
    .detail-value { font-size: 0.875rem; color: var(--color-text-muted); }
    .detail-row.note { padding-top: 1rem; border-top: 1px solid var(--color-border); }
    .exercises-section { margin-top: 0.5rem; }
    .exercises-title { font-size: 0.875rem; font-weight: 500; color: var(--color-text-secondary); margin-bottom: 0.75rem; }
    .exercises-list { display: flex; flex-direction: column; gap: 0.75rem; }
    .exercise-item { display: flex; align-items: center; gap: 1rem; padding: 0.75rem; background: rgba(38, 38, 38, 0.5); border-radius: var(--radius-md); transition: background 0.15s ease; }
    .exercise-item:hover { background: var(--color-bg-hover); }
    .exercise-item img { width: 4rem; height: 4rem; object-fit: cover; border-radius: var(--radius-md); flex-shrink: 0; }
    .exercise-info { flex: 1; }
    .exercise-name { font-size: 0.875rem; font-weight: 500; color: white; margin-bottom: 0.25rem; }
    .exercise-sets { font-size: 0.75rem; color: var(--color-text-muted); }
    .exercise-reps { font-size: 0.75rem; font-weight: 600; color: var(--color-accent); flex-shrink: 0; }
    .summary-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; max-width: 48rem; margin: 3rem auto 0; }
    @media (min-width: 640px) { .summary-grid { grid-template-columns: repeat(4, 1fr); } }
    .summary-item { text-align: center; padding: 1.5rem 1rem; background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-xl); }
    .summary-icon { margin: 0 auto 0.75rem; }
    .summary-icon.orange { color: var(--color-accent); }
    .summary-icon.blue { color: var(--color-blue); }
    .summary-icon.green { color: var(--color-green); }
    .summary-icon.yellow { color: var(--color-yellow); }
    .summary-value { font-size: 1.875rem; font-weight: 700; color: white; line-height: 1; }
    .summary-label { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 0.5rem; }

    /* Meals */
    .meals-container { max-width: 56rem; margin: 0 auto; }
    .meals-list { display: flex; flex-direction: column; gap: 1rem; }
    .meal-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; transition: border-color 0.3s ease; }
    .meal-card:hover { border-color: var(--color-border-light); }
    .meal-header { display: flex; align-items: center; gap: 1rem; padding: 1.25rem; border-bottom: 1px solid var(--color-border); }
    @media (min-width: 640px) { .meal-header { flex-direction: column; align-items: center; text-align: center; width: 12rem; border-bottom: none; border-right: 1px solid var(--color-border); } .meal-card { display: flex; } }
    .meal-icon { width: 3rem; height: 3rem; border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .meal-yellow .meal-icon { background: rgba(234, 179, 8, 0.1); color: #facc15; }
    .meal-amber .meal-icon { background: rgba(245, 158, 11, 0.1); color: #fbbf24; }
    .meal-green .meal-icon { background: rgba(34, 197, 94, 0.1); color: #4ade80; }
    .meal-orange .meal-icon { background: var(--color-accent-transparent); color: var(--color-accent); }
    .meal-blue .meal-icon { background: rgba(59, 130, 246, 0.1); color: #60a5fa; }
    .meal-time { flex: 1; }
    .time-row { display: flex; align-items: center; justify-content: center; gap: 0.375rem; color: var(--color-text-muted); font-size: 0.875rem; margin-bottom: 0.25rem; }
    .meal-name { font-weight: 600; color: white; }
    .meal-content { padding: 1.25rem; flex: 1; }
    .meal-description { color: var(--color-text-secondary); line-height: 1.6; }
    .meal-image { width: 100%; max-width: 12rem; height: 8rem; object-fit: cover; border-radius: var(--radius-md); margin-top: 1rem; }
    .notes-box { display: flex; align-items: flex-start; gap: 0.875rem; padding: 1.25rem; background: var(--color-accent-transparent); border: 1px solid var(--color-accent-border); border-radius: var(--radius-lg); margin-top: 1.5rem; }
    .notes-box svg { color: var(--color-accent); flex-shrink: 0; margin-top: 0.125rem; }
    .notes-box p { font-size: 0.875rem; color: var(--color-text-secondary); }
    .tips-section { margin-top: 3rem; max-width: 56rem; margin-left: auto; margin-right: auto; }
    .tips-title { font-size: 1.25rem; font-weight: 700; color: white; text-align: center; margin-bottom: 1.5rem; }
    .tips-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
    @media (min-width: 640px) { .tips-grid { grid-template-columns: repeat(2, 1fr); } }
    @media (min-width: 1024px) { .tips-grid { grid-template-columns: repeat(3, 1fr); } }
    .tip-card { display: flex; align-items: flex-start; gap: 0.875rem; padding: 1rem; background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
    .tip-card svg { color: var(--color-accent); flex-shrink: 0; margin-top: 0.125rem; }
    .tip-content { flex: 1; }
    .tip-title { font-size: 0.875rem; font-weight: 600; color: white; margin-bottom: 0.25rem; }
    .tip-description { font-size: 0.75rem; color: var(--color-text-muted); }

    /* Exercise Gallery */
    .exercises-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; max-width: 72rem; margin: 0 auto; }
    @media (min-width: 640px) { .exercises-grid { grid-template-columns: repeat(3, 1fr); } }
    @media (min-width: 1024px) { .exercises-grid { grid-template-columns: repeat(4, 1fr); } }
    .exercise-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; transition: all 0.3s ease; }
    .exercise-card:hover { border-color: var(--color-accent-border); transform: translateY(-4px); }
    .exercise-image-wrapper { position: relative; aspect-ratio: 1; overflow: hidden; }
    .exercise-image-wrapper img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
    .exercise-card:hover .exercise-image-wrapper img { transform: scale(1.1); }
    .exercise-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(10, 10, 10, 0.95) 0%, transparent 60%); }
    .exercise-info { padding: 1rem; }
    .exercise-muscle { display: inline-block; font-size: 0.75rem; font-weight: 500; color: var(--color-accent); margin-bottom: 0.25rem; }
    .exercise-info h3 { font-size: 0.875rem; font-weight: 700; color: white; line-height: 1.3; }
    .cta-section { text-align: center; margin-top: 3rem; }

    /* Footer */
    .footer { padding: 3rem 0; background: var(--color-bg-primary); border-top: 1px solid var(--color-border); }
    .footer-content { max-width: 48rem; margin: 0 auto; }
    .footer-brand { text-align: center; margin-bottom: 2rem; }
    .footer-logo { display: flex; align-items: center; justify-content: center; gap: 0.5rem; margin-bottom: 1rem; }
    .footer-logo .logo-icon { width: 2.5rem; height: 2.5rem; background: var(--color-accent); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; color: white; }
    .footer-logo .logo-text { font-size: 1.25rem; font-weight: 700; color: white; }
    .footer-description { font-size: 0.875rem; color: var(--color-text-muted); max-width: 28rem; margin: 0 auto; }
    .footer-features { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; margin-bottom: 2rem; }
    .feature-item { display: flex; align-items: center; gap: 0.5rem; color: var(--color-text-muted); font-size: 0.875rem; }
    .feature-item svg { color: var(--color-accent); }
    .footer-bottom { display: flex; flex-direction: column; align-items: center; gap: 1rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }
    @media (min-width: 640px) { .footer-bottom { flex-direction: row; justify-content: space-between; } }
    .copyright { font-size: 0.875rem; color: var(--color-text-muted); }
    .social-links { display: flex; gap: 0.75rem; }
    .social-link { width: 2rem; height: 2rem; background: var(--color-bg-card); border-radius: 9999px; display: flex; align-items: center; justify-content: center; color: var(--color-text-muted); transition: all 0.15s ease; }
    .social-link:hover { background: var(--color-bg-hover); color: var(--color-accent); }