Echo

Added

• Seven pages and a 404 for Overtone, a fictional independent interview podcast: home, episodes, episode, hosts, subscribe, advertise and be a guest.
• Audio player with play/pause, waveform scrubbing, 15-second skips, playback speed, volume and mute, time readouts and keyboard shortcuts. It plays a real <audio> file when an episode has a src and simulates playback on a clock otherwise.
• Mini player docked to the bottom of every page that keeps playing across page changes and resumes from the saved position, speed and volume (localStorage).
• Episode archive with search, season and topic filters, sort, live topic counts, removable filter chips, shareable URL parameters, an empty state and a load-more button.
• Episode pages generated from the EPISODES data: clickable chapters with the current one highlighted, chapter markers on the waveform, show notes, a searchable transcript that highlights and follows the current line, a guest card, related episodes and a share box that copies a link starting at the current second (?t=).
• Home page with the latest episode and its player, "listen on" links, featured episodes, topics with counts, hosts, listener reviews and a validated newsletter sign-up.
• Advertise page with audience stats, an SVG line chart, a donut chart and CSS bar charts (each with the numbers available as a table), ad formats, a rate card and a validated enquiry form.
• Be a guest page with a pitch form (conditional fields, character counter, URL check) and a success state; subscribe page with app links, a copyable RSS feed address, the next release date and an FAQ.
• Generated SVG cover art per season and topic, waveforms and guest avatars, illustrated host portraits, a PNG social image and SEO and Open Graph tags on every page.
• Accessible mobile menu, skip link, scroll reveals and back-to-top button that respect reduced motion.