@import"https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=DM+Sans:wght@300;400;500&display=swap";*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--cream: #0b0f14;--cream-mid: #151b23;--cream-dark: #30363d;--brown-deep: #f0f6fc;--brown-mid: #c9d1d9;--brown-light: #8b949e;--brown-faint: #484f58;--sage: #4caf50;--green-good: #2ea043;--green-dark: #238636;--orange-warn: #d29922;--red-alert: #f85149;--glass-bg: rgba(13, 17, 23, .8);--glass-border: rgba(240, 246, 252, .1);--card-shadow: 0 8px 32px rgba(0, 0, 0, .5);--font-serif: "Cormorant Garamond", Georgia, serif;--font-sans: "DM Sans", system-ui, sans-serif;--header-h: 72px;--radius-lg: 16px;--radius-xl: 24px}body{background-color:var(--cream);color:var(--brown-mid);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}h1,h2,h3{font-family:var(--font-serif);color:var(--brown-deep);font-weight:500}.sk-card{background:var(--cream-mid);border:1px solid var(--cream-dark);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--card-shadow)}.sk-badge{padding:6px 14px;border-radius:20px;font-size:13px;font-weight:500;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--cream-dark)}.sk-badge--points{background:#23863622;color:var(--green-dark);border-color:#23863644}.sk-badge--break{background:#d2992222;color:var(--orange-warn);border-color:#d2992244}.sk-header{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;padding:0 40px;background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--cream-dark);position:sticky;top:0;z-index:100}.sk-header__logo{font-family:var(--font-serif);font-size:22px;letter-spacing:.1em;color:var(--brown-deep);display:flex;align-items:center;gap:10px}.sk-header__right{display:flex;align-items:center;gap:16px}To complete the Dark Sanctuary transition for your Welcome Screen,here are the CSS classes for the main containers. The .welcome class acts as the full-screen canvas with a cinematic radial gradient,while .welcome__inner centers and constrains the content to ensure it looks elegant on all screen sizes. Updated CSS for index.css CSS .welcome{min-height:100vh;width:100%;background:radial-gradient(circle at center,#161b22,#0b0f14);display:flex;align-items:center;justify-content:center;padding:40px 20px;overflow:hidden}.welcome__inner{width:100%;max-width:600px;display:flex;flex-direction:column;align-items:center;text-align:center;margin:auto;animation:welcomeFadeUp 1.2s cubic-bezier(.215,.61,.355,1)}@keyframes welcomeFadeUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.welcome__lotus{font-size:64px;margin-bottom:24px;background:var(--cream-mid);width:120px;height:120px;display:flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid var(--cream-dark);box-shadow:var(--card-shadow);animation:float 4s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}.welcome__title{font-family:var(--font-serif);font-size:72px;font-weight:500;letter-spacing:.25em;color:var(--brown-deep);margin-bottom:8px;text-indent:.25em;text-align:center;text-transform:uppercase}.welcome__subtitle{font-family:var(--font-sans);font-size:16px;font-weight:400;letter-spacing:.6em;color:var(--brown-light);text-transform:uppercase;margin-bottom:40px;text-align:center;text-indent:.6em;opacity:.9}@media(max-width:768px){.welcome__title{font-size:48px;letter-spacing:.15em}.welcome__subtitle{font-size:12px;letter-spacing:.3em}}.welcome__card{max-width:500px;text-align:center;background:var(--cream-mid);border:1px solid var(--cream-dark);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:40px;border-radius:var(--radius-xl);box-shadow:var(--card-shadow);display:flex;flex-direction:column;gap:20px}.welcome__card-greeting{font-family:var(--font-serif);font-size:28px;color:var(--brown-deep);margin-bottom:8px}.welcome__card-body{font-family:var(--font-sans);font-size:16px;line-height:1.6;color:var(--brown-mid);margin:0}.welcome__card-body strong{color:var(--orange-warn);font-weight:500}.welcome__btn{margin-top:30px;padding:16px 40px;background:var(--green-dark);color:#fff;border:none;border-radius:30px;font-size:16px;cursor:pointer;transition:all .3s ease}.welcome__btn:hover{background:var(--green-good);transform:scale(1.05)}.yoga{padding:20px 40px;max-width:1600px;margin:0 auto;min-height:100vh;background-color:var(--cream)}.yoga__grid{display:grid;grid-template-columns:420px 1fr;gap:32px;margin-top:24px;align-items:start}.yoga__left{display:flex;flex-direction:column;gap:20px}.yoga__title-label{font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.1em;font-size:12px;color:var(--brown-light);margin-bottom:4px}.yoga__title-pose{font-family:var(--font-serif);font-size:36px;color:var(--brown-deep);margin-bottom:12px}.yoga__title-desc{font-size:15px;line-height:1.6;color:var(--brown-mid)}.yoga__ref-img{width:100%;aspect-ratio:4/3;background:var(--cream-mid);border-radius:var(--radius-lg);overflow:hidden;position:relative;border:1px solid var(--cream-dark)}.yoga__ref-img img{width:100%;height:100%;object-fit:cover}.yoga__ref-img-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--brown-light);gap:10px}.yoga__ref-badge{position:absolute;bottom:12px;left:12px;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);color:#fff;padding:4px 10px;border-radius:6px;font-size:11px;text-transform:uppercase}.yoga__score-row{display:flex;align-items:center;gap:24px}.yoga__score-ring{width:90px;height:90px;flex-shrink:0;border-radius:50%;background:var(--cream);border:4px solid var(--cream-dark);display:flex;flex-direction:column;align-items:center;justify-content:center;transition:all .3s ease}.yoga__score-ring.is-good{border-color:var(--green-good);box-shadow:0 0 15px #2ea04333}.yoga__score-number{font-size:28px;font-weight:600;color:var(--brown-deep)}.yoga__score-unit{font-size:12px;color:var(--brown-light)}.yoga__hold-info{flex:1}.yoga__hold-labels{display:flex;justify-content:space-between;margin-bottom:8px;font-size:14px;color:var(--brown-mid)}.yoga__hold-secs{font-weight:600;color:var(--brown-light)}.yoga__hold-secs.is-good{color:var(--green-good)}.yoga__hold-track{height:8px;background:var(--cream-dark);border-radius:4px;overflow:hidden;margin-bottom:10px}.yoga__hold-fill{height:100%;width:0;background:var(--brown-faint);transition:width .1s linear}.yoga__hold-fill.is-good{background:var(--green-good)}.yoga__hold-status{font-size:13px;color:var(--brown-light);font-style:italic}.yoga__hold-status.is-good{color:var(--green-good);font-style:normal}.yoga__feedback{margin-top:16px;padding-top:16px;border-top:1px solid var(--cream-dark);display:flex;flex-direction:column;gap:8px}.yoga__feedback-item{display:flex;gap:10px;font-size:14px;color:var(--orange-warn)}.yoga__history-label{font-size:12px;text-transform:uppercase;color:var(--brown-light);margin-bottom:10px}.yoga__history-row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px;border-bottom:1px solid rgba(255,255,255,.05)}.yoga__history-score{font-weight:600;color:var(--green-good)}.yoga__feed-panel{position:relative;width:100%;height:100%;min-height:500px;background:#000;border-radius:var(--radius-xl);border:1px solid var(--cream-dark);overflow:hidden;box-shadow:var(--card-shadow)}.yoga__feed-img-wrap{position:absolute;inset:0}.yoga__feed-img-wrap img{width:100%;height:100%;object-fit:cover}.yoga__feed-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#444;gap:15px}.yoga__feed-badge{position:absolute;top:20px;left:20px;background:#00000080;color:#fff;padding:6px 12px;border-radius:20px;font-size:12px;font-weight:600;display:flex;align-items:center;gap:8px}.yoga__feed-live-dot{width:8px;height:8px;background:#ff4b4b;border-radius:50%;animation:pulse 1.5s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.4}to{opacity:1}}.yoga__feed-score{position:absolute;top:20px;right:20px;font-size:48px;font-weight:700;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.5)}.yoga__feed-score.is-good{color:var(--green-good)}.yoga__feed-progress-track{position:absolute;bottom:0;left:0;width:100%;height:8px;background:#ffffff1a}.yoga__feed-progress-fill{height:100%;background:var(--green-good);transition:width .1s linear}.yoga__btn{margin-top:10px;padding:10px;background:var(--green-dark);color:#fff;border:none;border-radius:30px;font-size:16px;cursor:pointer;transition:all .3s ease}@media(max-width:1000px){.yoga__grid{grid-template-columns:1fr}.yoga__feed-panel{min-height:400px;order:-1}}.sk-chat{height:100vh;display:flex;flex-direction:column;background:var(--cream)}.sk-chat__topbar{padding:16px 32px;background:var(--cream-mid);border-bottom:1px solid var(--cream-dark);display:flex;justify-content:space-between;align-items:center}.sk-chat__body{flex:1;position:relative;padding:20px;display:flex;justify-content:center}.sk-chat__iframe{width:95%;max-width:1100px;height:100%;border-radius:var(--radius-lg);border:1px solid var(--cream-dark);box-shadow:var(--card-shadow)}.sk-chat__loader{position:absolute;inset:0;background:var(--cream);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:10;transition:opacity .5s ease}.sk-chat__loader.is-hidden{opacity:0;pointer-events:none}@media(max-width:1000px){.yoga__grid{grid-template-columns:1fr}.sk-header{padding:0 20px}}