/* ===== RESET ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bubble-bg: #262626;
    --bubble-text: #fff;
    --bubble-shadow: none;
    --bubble-border: transparent;
}

body.light {
    --bubble-bg: #fff;
    --bubble-text: #000;
    --bubble-shadow: 0 2px 6px rgba(0,0,0,0.08);
    --bubble-border: #dbdbdb;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, sans-serif;
    background: #000;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    -webkit-font-smoothing: antialiased;
}

/* ===== LAYOUT ===== */
.showcase-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 72px;
    max-width: 1100px;
    width: 100%;
}

/* ===== PHONE ===== */
.phone-container { position: relative; flex-shrink: 0; }
.phone-glow { display: none; }

.phone-frame {
    width: 393px;
    height: 852px;
    background: #000;
    border-radius: 52px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 2.5px solid #333;
}

/* ===== STATUS BAR ===== */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 32px 0;
    height: 50px;
    position: relative;
}

.status-time {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
}

.status-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 126px;
    height: 34px;
    background: #000;
    border-radius: 0 0 20px 20px;
}

.status-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.battery-icon {
    width: 25px;
    height: 12px;
    border: 1.5px solid rgba(255,255,255,0.45);
    border-radius: 3px;
    padding: 2px;
    position: relative;
}

.battery-icon::after {
    content: '';
    position: absolute;
    right: -3px;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 4px;
    background: rgba(255,255,255,0.45);
    border-radius: 0 1px 1px 0;
}

.battery-fill {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 1px;
}

/* ===== IG HEADER — Matches real Instagram ===== */
.ig-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 16px 4px;
}

.ig-header-left {
    display: flex;
    align-items: center;
    gap: 3px;
}

.ig-username {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.3px;
}

.ig-header-right {
    display: flex;
    align-items: center;
    gap: 22px;
}

/* ===== SEARCH ===== */
.ig-search {
    margin: 4px 16px 6px;
    padding: 8px 12px;
    background: #262626;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ig-search span {
    color: #a8a8a8;
    font-size: 16px;
    font-weight: 400;
}

/* ==========================================================
   NOTES CAROUSEL — Faithful to real IG
   ========================================================== */
.notes-section {
    border-bottom: 0.333px solid #262626;
}

.notes-carousel {
    display: flex;
    padding: 8px 12px 12px;
    overflow-x: auto;
    overflow-y: visible;
    scrollbar-width: none;
    gap: 0;
    align-items: flex-end;
}

.notes-carousel::-webkit-scrollbar { display: none; }

/* Each note column */
.note-col,
.your-note-col {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 88px;
    max-width: 88px;
    cursor: pointer;
}

.note-col:active,
.your-note-col:active {
    opacity: 0.7;
}

/* ===== YOUR NOTE ===== */
.your-note-col .avatar-wrapper {
    position: relative;
    width: 68px;
    height: 68px;
}

.your-note-col .avatar {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    overflow: hidden;
    background: #262626;
}

.your-note-col .avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.add-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 22px;
    height: 22px;
    background: #0095f6;
    border-radius: 50%;
    border: 3px solid #000;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

/* ===== FRIEND AVATAR — ring ONLY for activity (our new feature) ===== */
.note-col .avatar-wrapper {
    position: relative;
    width: 68px;
    height: 68px;
}

/* Thin ring — like IG stories but color-coded for activity type */
.note-col .avatar-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    padding: 2.5px;
}

.note-col .avatar-ring.gaming {
    background: linear-gradient(135deg, #405de6, #5851db, #833ab4);
}

.note-col .avatar-ring.watching {
    background: linear-gradient(135deg, #fd1d1d, #e50914, #f77737);
}

.note-col .avatar-ring.listening {
    background: linear-gradient(135deg, #1db954, #1ed760);
}

.note-col .ring-gap {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #000;
    padding: 2px;
}

.note-col .avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    background: #262626;
}

.note-col .avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== NOTE BUBBLE — Single line, dynamic theme ===== */
.note-bubble {
    background: var(--bubble-bg);
    border: 1px solid var(--bubble-border);
    box-shadow: var(--bubble-shadow);
    border-radius: 16px;
    padding: 7px 12px;
    margin-bottom: 6px;
    position: relative;
    max-width: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    white-space: nowrap !important;
}

/* Tail — downward triangle, color matches theme */
.note-bubble::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid var(--bubble-bg);
}

.bubble-text {
    font-size: 12px;
    font-weight: 400;
    color: var(--bubble-text);
    white-space: nowrap !important;
    display: inline-block;
}

/* Marquee only for long text */
.note-bubble.scroll {
    justify-content: flex-start;
}

.note-bubble.scroll .bubble-text {
    animation: marquee 5s linear infinite;
}

.note-bubble.scroll:hover .bubble-text {
    animation-play-state: paused;
}

@keyframes marquee {
    0%   { transform: translateX(10%); }
    100% { transform: translateX(-100%); }
}

.note-bubble.static .bubble-text {
    animation: none;
}

/* ===== NOTE NAME ===== */
.note-name {
    font-size: 11px;
    color: #f5f5f5;
    margin-top: 4px;
    max-width: 84px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
}

/* ===== LIVE PULSE ===== */
.live-pulse {
    position: absolute;
    top: 1px;
    right: 4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #0095f6;
    border: 2px solid #000;
    z-index: 4;
}

/* ===== ONLINE DOT ===== */
.online-dot {
    position: absolute;
    bottom: 2px;
    right: 4px;
    width: 14px;
    height: 14px;
    background: #44d62c;
    border-radius: 50%;
    border: 3px solid #000;
    z-index: 3;
}

/* ===== SKELETON ===== */
.skeleton-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 88px;
    max-width: 88px;
}

.skeleton-bubble {
    width: 70px;
    height: 32px;
    border-radius: 18px;
    margin-bottom: 6px;
    background: linear-gradient(90deg, #1a1a1a 25%, #262626 50%, #1a1a1a 75%);
    background-size: 200% 100%;
    animation: shimmer 1s ease-in-out infinite;
}

.skeleton-avatar {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: linear-gradient(90deg, #1a1a1a 25%, #262626 50%, #1a1a1a 75%);
    background-size: 200% 100%;
    animation: shimmer 1s ease-in-out infinite;
}

.skeleton-name {
    width: 40px;
    height: 10px;
    border-radius: 5px;
    margin-top: 4px;
    background: linear-gradient(90deg, #1a1a1a 25%, #262626 50%, #1a1a1a 75%);
    background-size: 200% 100%;
    animation: shimmer 1s ease-in-out infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ===== DM SECTION — pixel-match to IG ===== */
.dm-section {
    flex: 1;
    overflow-y: auto;
    scrollbar-width: none;
}

.dm-section::-webkit-scrollbar { display: none; }

.dm-section-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 14px 16px 8px;
}

.dm-title {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}

.dm-requests {
    font-size: 14px;
    font-weight: 600;
    color: #0095f6;
}

.dm-list { padding: 0 16px; }

.dm-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
}

.dm-item:active { opacity: 0.5; }

.dm-avatar-wrap {
    position: relative;
    flex-shrink: 0;
}

.dm-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    overflow: hidden;
    background: #262626;
}

.dm-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dm-online-dot {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 14px;
    height: 14px;
    background: #44d62c;
    border-radius: 50%;
    border: 3px solid #000;
}

.dm-info { flex: 1; min-width: 0; }

.dm-name {
    font-size: 14px;
    font-weight: 400;
    color: #f5f5f5;
}

.dm-name.unread { font-weight: 600; color: #fff; }

.dm-preview {
    font-size: 14px;
    color: #a8a8a8;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 1px;
}

.dm-right {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}

.dm-unread-dot {
    width: 8px;
    height: 8px;
    background: #0095f6;
    border-radius: 50%;
}

.dm-camera { opacity: 0.4; }

/* ===== BOTTOM NAV ===== */
.bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 16px 28px;
    border-top: 0.333px solid #262626;
    background: #000;
}

.bottom-nav svg { opacity: 0.5; }
.bottom-nav svg:nth-child(4) { opacity: 1; }

.nav-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    overflow: hidden;
    border: 1.5px solid #fff;
}

.nav-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==========================================================
   BOTTOM SHEET — iOS native style
   ========================================================== */
.bottom-sheet-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: flex-end;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    border-radius: 52px;
    overflow: hidden;
}

.bottom-sheet-overlay.visible {
    opacity: 1;
    pointer-events: all;
}

.bottom-sheet {
    background: #262626;
    border-radius: 14px 14px 0 0;
    width: 100%;
    max-height: 60%;
    padding: 0 16px 36px;
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
}

.bottom-sheet-overlay.visible .bottom-sheet {
    transform: translateY(0);
}

.sheet-handle {
    width: 36px;
    height: 4px;
    background: #666;
    border-radius: 2px;
    margin: 8px auto 16px;
}

.sheet-content {
    overflow-y: auto;
    max-height: 50vh;
    scrollbar-width: none;
}

.sheet-content::-webkit-scrollbar { display: none; }

/* Sheet layout */
.sheet-header-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
}

.sheet-small-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.sheet-small-avatar img { width: 100%; height: 100%; object-fit: cover; }

.sheet-cover-art {
    width: 56px;
    height: 56px;
    border-radius: 8px;
    flex-shrink: 0;
    background-size: cover;
    background-position: center;
    background-color: #1a1a1a;
}

.sheet-meta {
    flex: 1;
    min-width: 0;
}

.sheet-activity-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 2px;
}

.sheet-activity-label.gaming { color: #5b9aff; }
.sheet-activity-label.watching { color: #ff6b6b; }
.sheet-activity-label.listening { color: #1ed760; }

.sheet-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
}

.sheet-subtitle {
    font-size: 13px;
    color: #a8a8a8;
    margin-top: 1px;
}

.sheet-platform-row {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 3px;
}

.sheet-platform-icon {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 7px;
    font-weight: 700;
    color: #fff;
}

.sheet-platform-icon.psn { background: #003087; }
.sheet-platform-icon.xbox { background: #107c10; }
.sheet-platform-icon.netflix { background: #e50914; }
.sheet-platform-icon.peacock { background: #444; }
.sheet-platform-icon.spotify { background: #1db954; }

.sheet-platform-text { font-size: 12px; color: #a8a8a8; }

.sheet-live-badge {
    font-size: 10px;
    font-weight: 700;
    color: #0095f6;
}

/* Sheet Buttons */
.sheet-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.sheet-action-btn {
    flex: 1;
    min-height: 44px;
    padding: 12px;
    border-radius: 8px;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    text-align: center;
}

.sheet-action-btn:active { opacity: 0.7; }
.sheet-action-btn.primary { background: #0095f6; color: #fff; }
.sheet-action-btn.secondary { background: #363636; color: #fff; }

/* Icebreakers */
.sheet-icebreakers {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 0.333px solid #363636;
}

.icebreaker-label {
    font-size: 12px;
    font-weight: 600;
    color: #a8a8a8;
    margin-bottom: 8px;
    display: block;
}

.icebreaker-chips { display: flex; gap: 8px; }

.icebreaker-chip {
    padding: 8px 14px;
    border-radius: 16px;
    border: none;
    background: #363636;
    color: #fff;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
}

.icebreaker-chip:active { opacity: 0.6; }
.icebreaker-chip.sent { background: #1a3a1a; color: #44d62c; }

/* ==========================================================
   INTEGRATIONS MODAL
   ========================================================== */
.integrations-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: flex-end;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    border-radius: 52px;
    overflow: hidden;
}

.integrations-overlay.visible { opacity: 1; pointer-events: all; }

.integrations-modal {
    background: #262626;
    border-radius: 14px 14px 0 0;
    width: 100%;
    max-height: 70%;
    padding: 0 16px 36px;
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
    overflow-y: auto;
    scrollbar-width: none;
}

.integrations-modal::-webkit-scrollbar { display: none; }
.integrations-overlay.visible .integrations-modal { transform: translateY(0); }

.integrations-header { text-align: center; margin-bottom: 20px; }
.integrations-header h2 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 2px; }
.integrations-header p { font-size: 13px; color: #a8a8a8; }

.integration-category { margin-bottom: 14px; }
.category-label { font-size: 12px; font-weight: 600; color: #a8a8a8; margin-bottom: 6px; display: block; }

.integration-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 0;
    border-bottom: 0.333px solid #363636;
}

.integration-item:last-child { border-bottom: none; }

.integration-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
    color: #fff;
    flex-shrink: 0;
}

.integration-icon.psn { background: #003087; }
.integration-icon.xbox { background: #107c10; }
.integration-icon.netflix { background: #e50914; }
.integration-icon.peacock { background: #1a1a1a; border: 1px solid #444; }
.integration-icon.spotify { background: #1db954; }

.integration-info { flex: 1; }
.integration-name { display: block; font-size: 14px; color: #fff; }
.integration-status { font-size: 12px; color: #a8a8a8; }
.integration-status.connected { color: #44d62c; }

/* Toggle — iOS style */
.toggle { position: relative; display: inline-block; width: 51px; height: 31px; flex-shrink: 0; }
.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
    position: absolute; cursor: pointer; inset: 0;
    background: #39393d; border-radius: 31px; transition: background 0.2s;
}

.toggle-slider::before {
    content: ''; position: absolute;
    width: 27px; height: 27px; border-radius: 50%;
    background: #fff; top: 2px; left: 2px;
    transition: transform 0.2s; box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.toggle input:checked + .toggle-slider { background: #34c759; }
.toggle input:checked + .toggle-slider::before { transform: translateX(20px); }

.integrations-footer {
    display: flex; align-items: center; justify-content: center;
    gap: 6px; margin-top: 16px; padding-top: 12px;
    border-top: 0.333px solid #363636; color: #a8a8a8; font-size: 12px;
}

/* ==========================================================
   CONTEXT PANEL — Minimal, doesn't distract from the phone
   ========================================================== */
.context-panel { max-width: 380px; }

.panel-header { margin-bottom: 28px; }
.panel-tag { font-size: 10px; font-weight: 600; color: #666; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 8px; display: block; }
.panel-header h1 { font-size: 30px; font-weight: 700; color: #fff; line-height: 1.15; margin-bottom: 10px; }
.panel-header h1 em { font-style: normal; background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.panel-subtitle { font-size: 14px; color: #a8a8a8; line-height: 1.5; }

.feature-cards { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }

.feature-card {
    display: flex; align-items: flex-start; gap: 12px; padding: 12px;
    background: #0a0a0a; border: 1px solid #1a1a1a; border-radius: 10px;
}

.feature-card:hover { border-color: #333; }

.feature-icon { width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
.gaming-icon { background: #0066ff22; }
.watching-icon { background: #e5091422; }
.music-icon { background: #1db95422; }
.privacy-icon { background: #ffc10722; }

.feature-text h3 { font-size: 13px; font-weight: 600; color: #fff; margin-bottom: 2px; }
.feature-text p { font-size: 12px; color: #a8a8a8; line-height: 1.4; }

.interaction-guide { padding: 14px; background: #0a0a0a; border: 1px solid #1a1a1a; border-radius: 10px; margin-bottom: 20px; }
.interaction-guide h4 { font-size: 11px; font-weight: 600; color: #0095f6; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }
.guide-items { display: flex; flex-direction: column; gap: 6px; }
.guide-item { display: flex; align-items: center; gap: 8px; font-size: 12px; color: #a8a8a8; }
.guide-num { width: 18px; height: 18px; border-radius: 50%; background: #0095f622; color: #0095f6; display: flex; align-items: center; justify-content: center; font-size: 10px; font-weight: 700; flex-shrink: 0; }

.panel-footer { padding-top: 16px; border-top: 1px solid #1a1a1a; display: flex; justify-content: space-between; align-items: center; }
.panel-footer span { font-size: 11px; color: #444; }

.mode-toggle {
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid #333;
    background: #1a1a1a;
    color: #fff;
    font-size: 12px;
    font-family: inherit;
    cursor: pointer;
}

.mode-toggle:hover { background: #262626; }

body.light .mode-toggle {
    background: #efefef;
    border-color: #dbdbdb;
    color: #000;
}

/* ==========================================================
   LIGHT MODE
   ========================================================== */
body.light {
    background: #fafafa;
}

body.light .phone-frame {
    background: #fff;
    border-color: #dbdbdb;
}

body.light .status-time,
body.light .ig-username { color: #000; }
body.light .ig-header-left svg,
body.light .ig-header-right svg { stroke: #000; }
body.light .ig-header-left svg path,
body.light .ig-header-right svg path { stroke: #000; }

body.light .ig-search {
    background: #efefef;
}
body.light .ig-search span { color: #8e8e8e; }
body.light .ig-search svg { stroke: #8e8e8e; }

body.light .notes-section { border-color: #dbdbdb; }

body.light .note-name { color: #262626; }

body.light .note-col .ring-gap { background: #fff; }
body.light .add-badge { border-color: #fff; }

body.light .dm-section-header { border: none; }
body.light .dm-title { color: #000; }
body.light .dm-name { color: #000; }
body.light .dm-name.unread { color: #000; }
body.light .dm-preview { color: #8e8e8e; }

body.light .bottom-nav {
    background: #fff;
    border-top-color: #dbdbdb;
}
body.light .bottom-nav svg { stroke: #000; }
body.light .bottom-nav svg:nth-child(4) path { fill: #000; }
body.light .nav-avatar { border-color: #000; }

body.light .bottom-sheet { background: #fff; }
body.light .sheet-handle { background: #dbdbdb; }
body.light .sheet-title { color: #000; }
body.light .sheet-subtitle { color: #8e8e8e; }
body.light .sheet-cover-art { background: #efefef !important; }
body.light .sheet-action-btn.secondary { background: #efefef; color: #000; }
body.light .sheet-icebreakers { border-top-color: #dbdbdb; }
body.light .icebreaker-chip { background: #efefef; color: #000; }

body.light .integrations-modal { background: #fff; }
body.light .integrations-header h2 { color: #000; }
body.light .integration-name { color: #000; }
body.light .integration-item { border-bottom-color: #efefef; }
body.light .integrations-footer { border-top-color: #efefef; color: #8e8e8e; }

body.light .context-panel .panel-header h1 { color: #000; }
body.light .context-panel .panel-subtitle { color: #666; }
body.light .feature-card { background: #fff; border-color: #efefef; }
body.light .feature-text h3 { color: #000; }
body.light .feature-text p { color: #666; }
body.light .interaction-guide { background: #fff; border-color: #efefef; }
body.light .guide-item { color: #444; }
body.light .panel-footer { border-top-color: #efefef; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .showcase-layout { flex-direction: column; gap: 40px; }
    .context-panel { max-width: 393px; }
}

@media (max-width: 420px) {
    body { padding: 0; }
    .phone-frame { border-radius: 0; width: 100vw; height: 100vh; border: none; }
    .context-panel { display: none; }
}