*{margin:0;padding:0;box-sizing:border-box}:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-secondary: #64748b;--color-accent: #1e5a8a;--color-accent-hover: #164569;--color-accent-light: #e0f2fe;--color-solar: #f59e0b;--radius-md: 12px;--radius-lg: 16px}body{font-family:Lato,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.5;color:var(--color-text);background:var(--color-bg);min-height:100vh}.app{max-width:1200px;margin:0 auto;padding:32px 24px}.upload-zone{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - 130px);border-radius:var(--radius-lg)}.upload-zone.hidden{display:none}.landing-content{display:flex;flex-direction:column;align-items:center;gap:24px;width:100%;max-width:900px;padding:40px 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