1 "use client";
2
3 import Image from "next/image";
4 import { useCallback, useEffect, useRef, useState } from "react";
5
6 type Shot = {
7 src: string;
8 alt: string;
9 caption: string;
10 device: "phone" | "tablet";
11 width: number;
12 height: number;
13 };
14
15 const slides: Shot[] = [
16 {
17 src: "/screenshots/iphone-chat.png",
18 alt: "Siti AI chat running on iPhone",
19 caption: "Ask anything, on device",
20 device: "phone",
21 width: 1242,
22 height: 2688,
23 },
24 {
25 src: "/screenshots/iphone-settings.png",
26 alt: "Siti AI on-device model settings on iPhone",
27 caption: "Pick your model",
28 device: "phone",
29 width: 1242,
30 height: 2688,
31 },
32 {
33 src: "/screenshots/ipad-chat.png",
34 alt: "Siti AI chat running on iPad",
35 caption: "Roomy on iPad",
36 device: "tablet",
37 width: 2064,
38 height: 2752,
39 },
40 {
41 src: "/screenshots/ipad-settings.png",
42 alt: "Siti AI on-device model settings on iPad",
43 caption: "Everything stays local",
44 device: "tablet",
45 width: 2064,
46 height: 2752,
47 },
48 ];
49
50 const AUTOPLAY_MS = 5000;
51 const SWIPE_THRESHOLD = 40;
52
53 function Arrow({ dir }: { dir: "left" | "right" }) {
54 return (
55 <svg
56 viewBox="0 0 24 24"
57 fill="none"
58 stroke="currentColor"
59 strokeWidth="2"
60 strokeLinecap="round"
61 strokeLinejoin="round"
62 className="h-5 w-5"
63 aria-hidden="true"
64 >
65 <path d={dir === "left" ? "M15 18l-6-6 6-6" : "M9 18l6-6-6-6"} />
66 </svg>
67 );
68 }
69
70 export function AppScreenshots() {
71 const [index, setIndex] = useState(0);
72 const [paused, setPaused] = useState(false);
73 const touchStartX = useRef<number | null>(null);
74
75 const count = slides.length;
76 const goTo = useCallback(
77 (next: number) => setIndex((next + count) % count),
78 [count]
79 );
80 const prev = useCallback(() => goTo(index - 1), [goTo, index]);
81 const next = useCallback(() => goTo(index + 1), [goTo, index]);
82
83 // Auto-advance, paused on hover/focus and when the user prefers reduced motion.
84 useEffect(() => {
85 if (paused) return;
86 if (window.matchMedia("(prefers-reduced-motion: reduce)").matches) return;
87 const id = window.setInterval(
88 () => setIndex((i) => (i + 1) % count),
89 AUTOPLAY_MS
90 );
91 return () => window.clearInterval(id);
92 }, [paused, count]);
93
94 function onTouchStart(e: React.TouchEvent) {
95 touchStartX.current = e.touches[0].clientX;
96 }
97 function onTouchEnd(e: React.TouchEvent) {
98 if (touchStartX.current === null) return;
99 const delta = e.changedTouches[0].clientX - touchStartX.current;
100 if (delta > SWIPE_THRESHOLD) prev();
101 else if (delta < -SWIPE_THRESHOLD) next();
102 touchStartX.current = null;
103 }
104
105 return (
106 <section className="mx-auto max-w-5xl px-6 py-20">
107 <div className="text-center">
108 <p className="text-xs font-semibold uppercase tracking-[0.15em] text-brand">
109 A look inside
110 </p>
111 <h2 className="mt-3 text-3xl font-semibold tracking-tight sm:text-4xl">
112 Private by design, on every device.
113 </h2>
114 <p className="mx-auto mt-4 max-w-xl text-muted">
115 The same assistant on iPhone and iPad. Your model runs locally and your
116 chats never leave the device.
117 </p>
118 </div>
119
120 <div
121 className="mt-12"
122 role="group"
123 aria-roledescription="carousel"
124 aria-label="App screenshots"
125 onMouseEnter={() => setPaused(true)}
126 onMouseLeave={() => setPaused(false)}
127 onFocus={() => setPaused(true)}
128 onBlur={() => setPaused(false)}
129 onKeyDown={(e) => {
130 if (e.key === "ArrowLeft") prev();
131 if (e.key === "ArrowRight") next();
132 }}
133 >
134 <div className="flex items-center justify-center gap-3 sm:gap-5">
135 <button
136 type="button"
137 onClick={prev}
138 aria-label="Previous screenshot"
139 className="hidden shrink-0 rounded-full border border-border bg-surface p-3 text-muted shadow-sm transition-colors hover:text-ink sm:block"
140 >
141 <Arrow dir="left" />
142 </button>
143
144 {/* Stage: a fixed-height frame so slides of different aspect ratios
145 swap without the layout jumping. */}
146 <div
147 className="relative h-[460px] w-full max-w-md overflow-hidden sm:h-[600px]"
148 onTouchStart={onTouchStart}
149 onTouchEnd={onTouchEnd}
150 >
151 <div
152 className="flex h-full transition-transform duration-500 ease-out"
153 style={{ transform: `translateX(-${index * 100}%)` }}
154 >
155 {slides.map((shot, i) => (
156 <figure
157 key={shot.src}
158 className="flex h-full w-full shrink-0 flex-col items-center justify-center"
159 aria-roledescription="slide"
160 aria-label={`${i + 1} of ${count}`}
161 aria-hidden={i !== index}
162 >
163 <div
164 className="flex min-h-0 flex-1 items-center justify-center"
165 style={{ maxWidth: shot.device === "phone" ? 260 : 420 }}
166 >
167 <Image
168 src={shot.src}
169 alt={shot.alt}
170 width={shot.width}
171 height={shot.height}
172 priority={i === 0}
173 sizes="(max-width: 640px) 90vw, 420px"
174 className="h-full w-auto rounded-card border border-border bg-surface object-contain shadow-sm"
175 />
176 </div>
177 <figcaption className="mt-4 text-center text-sm text-muted">
178 {shot.caption}
179 </figcaption>
180 </figure>
181 ))}
182 </div>
183 </div>
184
185 <button
186 type="button"
187 onClick={next}
188 aria-label="Next screenshot"
189 className="hidden shrink-0 rounded-full border border-border bg-surface p-3 text-muted shadow-sm transition-colors hover:text-ink sm:block"
190 >
191 <Arrow dir="right" />
192 </button>
193 </div>
194
195 {/* Dots */}
196 <div className="mt-6 flex items-center justify-center gap-2.5">
197 {slides.map((shot, i) => (
198 <button
199 key={shot.src}
200 type="button"
201 onClick={() => goTo(i)}
202 aria-label={`Go to ${shot.caption}`}
203 aria-current={i === index}
204 className={`h-2 rounded-full transition-all ${
205 i === index ? "w-6 bg-brand" : "w-2 bg-border hover:bg-muted"
206 }`}
207 />
208 ))}
209 </div>
210 </div>
211 </section>
212 );
213 }