Pastel Running App Three-Screen UI Mockup

{
  "type": "mobile fitness app UI mockup",
  "style": "clean modern pastel app design, soft beige and warm white surfaces, muted sage green accents, rounded cards and buttons, subtle shadows, thin minimalist line icons, friendly playful branding with a [sloth] mascot, dribbble-style showcase on a dark brown dotted grid background",
  "theme": "[running tracker app]",
  "layout": {
    "device_count": 3,
    "arrangement": "three tall smartphone screens side by side, evenly spaced, front view",
    "background": "very dark brown with a faint evenly spaced dot grid",
    "screens": [
      {
        "position": "left",
        "screen_type": "home dashboard",
        "header": {
          "greeting": "Good morning, Runner! 👋",
          "left_icon": "none",
          "right_icon": "notification bell"
        },
        "hero_card": {
          "headline": "Ready for a great day?",
          "subcard_text_line_1": "Every step forward is a win.",
          "subcard_text_line_2": "Let's make it count. 🌱",
          "illustration": "cute [sloth] wearing a cream headband and mint-green workout outfit, standing and waving inside the card on the right"
        },
        "sections": [
          {
            "title": "This Week",
            "position": "upper middle",
            "count": 3,
            "labels": [
              "Runs",
              "Distance",
              "Time"
            ],
            "values": [
              "3",
              "12.6 km",
              "1h 45m"
            ],
            "presentation": "single rounded stats card with three equal columns and pale green circular icons"
          },
          {
            "title": "NEXT GOAL",
            "position": "middle lower",
            "count": 1,
            "labels": [
              "20 km this month"
            ],
            "values": [
              "63%"
            ],
            "presentation": "rounded progress card with green progress bar and small waving sloth illustration on the right"
          },
          {
            "title": "Recent Activity",
            "position": "lower",
            "count": 1,
            "labels": [
              "Recent Activity"
            ],
            "presentation": "top edge of another rounded card visible, cropped by the bottom navigation"
          }
        ],
        "bottom_nav": {
          "count": 4,
          "labels": [
            "Home",
            "Run",
            "Progress",
            "Profile"
          ],
          "active": "Home"
        }
      },
      {
        "position": "center",
        "screen_type": "run summary",
        "header": {
          "left_icon": "back chevron",
          "center_text": "Great job!",
          "subtext": "You did it. Time to celebrate. 🎉",
          "right_icon": "share"
        },
        "hero_illustration": "cute [sloth] wearing a headband, mint athletic outfit, and a gold medal, both arms raised in celebration",
        "stats_row": {
          "count": 3,
          "labels": [
            "DISTANCE",
            "TIME",
            "PACE"
          ],
          "values": [
            "5.00km",
            "32:15",
            "6:27"
          ],
          "presentation": "three rounded statistic pills"
        },
        "achievement_card": {
          "count": 1,
          "title": "New Personal Best! 🌟",
          "subtitle": "You shaved 1:12 off your previous 5K.",
          "icon": "small gold medal badge"
        },
        "table_section": {
          "title": "Splits",
          "count": 2,
          "columns": [
            "KM",
            "PACE",
            "TIME"
          ],
          "rows": [
            [
              "1",
              "6:35",
              "6:35"
            ],
            [
              "2",
              "6:23",
              "12:58"
            ]
          ],
          "presentation": "rounded white table card with light dividers"
        }
      },
      {
        "position": "right",
        "screen_type": "run goal setup",
        "header": {
          "left_icon": "close x",
          "center_text": "Time to run!",
          "subtext": "You've got this. We'll take it slow. 🦥",
          "right_icon": "settings gear"
        },
        "goal_visual": {
          "type": "circular progress selector",
          "top_label": "CHOOSE A GOAL",
          "main_value": "5.00",
          "unit": "kilometers",
          "ring": "thick partial sage-green arc on a pale beige circle",
          "illustration": "small [sloth] stretching on the upper-right edge of the circle"
        },
        "goal_options": {
          "count": 4,
          "labels": [
            "2 km",
            "5 km",
            "10 km",
            "Half"
          ],
          "active": "5 km"
        },
        "primary_cta": {
          "label": "Start Run",
          "style": "large rounded sage-green button"
        },
        "secondary_action": {
          "label": "Just Track",
          "icon": "location pin"
        },
        "bottom_nav": {
          "count": 4,
          "labels": [
            "Home",
            "Run",
            "Progress",
            "Profile"
          ],
          "active": "Run"
        }
      }
    ]
  }
}