/* ═══════════════════════════════════════════════════════
   Secret Chat – Premium Dark UI
   ═══════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Merriweather:wght@400;700&display=swap');

:root {
    --sc-bg: #0a0a0f;
    --sc-surface: #12121a;
    --sc-surface-2: #1a1a26;
    --sc-border: rgba(255,255,255,0.06);
    --sc-text: #e8e8f0;
    --sc-text-muted: #6b6b80;
    --sc-accent: #a855f7;
    --sc-accent-2: #ec4899;
    --sc-gradient: linear-gradient(135deg, #a855f7, #ec4899);
    --sc-gradient-subtle: linear-gradient(135deg, rgba(168,85,247,0.15), rgba(236,72,153,0.15));
    --sc-glow: 0 0 40px rgba(168,85,247,0.15);
    --sc-radius: 16px;
    --sc-radius-sm: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

.sc-page {
    font-family: 'Inter', sans-serif;
    background: var(--sc-bg);
    color: var(--sc-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 1rem;
    position: relative;
    overflow: hidden;
}

/* Background orbs */
.sc-bg-orb {
    position: fixed; border-radius: 50%; filter: blur(80px);
    opacity: 0.3; pointer-events: none; z-index: 0;
    animation: orbFloat 8s ease-in-out infinite alternate;
}
.sc-bg-orb-1 { width: 400px; height: 400px; background: #a855f7; top: -100px; left: -100px; }
.sc-bg-orb-2 { width: 350px; height: 350px; background: #ec4899; bottom: -80px; right: -80px; animation-delay: -4s; }
.sc-bg-orb-3 { width: 200px; height: 200px; background: #6366f1; top: 50%; left: 60%; animation-delay: -2s; }

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, -20px) scale(1.1); }
}

/* ── Landing Card ── */
.sc-landing { position: relative; z-index: 1; width: 100%; max-width: 460px; animation: fadeUp 0.6s ease; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.sc-card {
    background: var(--sc-surface); border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius); padding: 2rem;
    box-shadow: var(--sc-glow); backdrop-filter: blur(10px);
}

.sc-logo { text-align: center; margin-bottom: 2rem; }
.sc-logo-icon {
    width: 64px; height: 64px; background: var(--sc-gradient);
    border-radius: 20px; display: inline-flex; align-items: center;
    justify-content: center; font-size: 1.8rem; margin-bottom: 0.75rem;
    box-shadow: 0 8px 30px rgba(168,85,247,0.3);
}
.sc-logo h1 {
    font-size: 1.6rem; font-weight: 800;
    background: var(--sc-gradient); -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; background-clip: text;
}
.sc-logo p { font-size: 0.85rem; color: var(--sc-text-muted); margin-top: 0.35rem; }

/* Tabs */
.sc-tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; background: var(--sc-surface-2); border-radius: var(--sc-radius-sm); padding: 4px; }
.sc-tab {
    flex: 1; padding: 0.7rem; border: none; background: transparent;
    color: var(--sc-text-muted); font-family: 'Inter', sans-serif;
    font-size: 0.85rem; font-weight: 600; border-radius: 8px;
    cursor: pointer; transition: all 0.3s ease;
}
.sc-tab.active { background: var(--sc-gradient); color: #fff; box-shadow: 0 4px 15px rgba(168,85,247,0.3); }

/* Forms */
.sc-form { display: flex; flex-direction: column; gap: 1rem; }
.sc-form.hidden { display: none; }
.sc-input-group { position: relative; }
.sc-input-group i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--sc-text-muted); font-size: 1.1rem; pointer-events: none; }
.sc-input {
    width: 100%; padding: 0.85rem 1rem 0.85rem 2.8rem;
    background: var(--sc-surface-2); border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-sm); color: var(--sc-text);
    font-family: 'Inter', sans-serif; font-size: 0.9rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.sc-input:focus { outline: none; border-color: var(--sc-accent); box-shadow: 0 0 0 3px rgba(168,85,247,0.15); }
.sc-input::placeholder { color: var(--sc-text-muted); }

.sc-select {
    width: 100%; padding: 0.85rem 1rem 0.85rem 2.8rem;
    background: var(--sc-surface-2); border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-sm); color: var(--sc-text);
    font-family: 'Inter', sans-serif; font-size: 0.9rem; appearance: none; cursor: pointer;
}
.sc-select:focus { outline: none; border-color: var(--sc-accent); }

.sc-btn {
    padding: 0.85rem 1.5rem; border: none; border-radius: var(--sc-radius-sm);
    font-family: 'Inter', sans-serif; font-size: 0.9rem; font-weight: 700;
    cursor: pointer; transition: all 0.3s ease;
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
}
.sc-btn-primary { background: var(--sc-gradient); color: #fff; box-shadow: 0 4px 20px rgba(168,85,247,0.3); }
.sc-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(168,85,247,0.4); }
.sc-btn-outline { background: transparent; border: 1px solid var(--sc-border); color: var(--sc-text); }
.sc-btn-outline:hover { border-color: var(--sc-accent); color: var(--sc-accent); }
.sc-btn-sm { padding: 0.5rem 1rem; font-size: 0.8rem; }

/* Code Display */
.sc-code-display { background: var(--sc-surface-2); border: 1px dashed var(--sc-accent); border-radius: var(--sc-radius-sm); padding: 1.25rem; text-align: center; animation: fadeUp 0.4s ease; }
.sc-code-display .code-label { font-size: 0.75rem; color: var(--sc-text-muted); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.5rem; }
.sc-code-display .code-value { font-size: 1.4rem; font-weight: 800; letter-spacing: 0.15em; background: var(--sc-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; word-break: break-all; }
.sc-code-actions { display: flex; gap: 0.5rem; margin-top: 1rem; }
.sc-code-actions .sc-btn { flex: 1; }

.sc-encrypt-badge { display: flex; align-items: center; justify-content: center; gap: 0.4rem; font-size: 0.7rem; color: var(--sc-text-muted); padding: 0.5rem; opacity: 0.6; margin-top: 1rem; }
.sc-encrypt-badge i { color: var(--sc-accent); }

/* ══ Chat Container ══ */
.sc-chat-container {
    position: relative; z-index: 1; width: 100%; max-width: 700px;
    height: calc(100vh - 3rem); display: flex; flex-direction: column; animation: fadeUp 0.5s ease;
}

.sc-chat-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.75rem 1rem; background: var(--sc-surface);
    border: 1px solid var(--sc-border); border-radius: var(--sc-radius) var(--sc-radius) 0 0; flex-shrink: 0;
}
.sc-chat-header-left { display: flex; align-items: center; gap: 0.75rem; }
.sc-chat-header-left .back-btn, .back-btn {
    background: none; border: none; color: var(--sc-text-muted);
    cursor: pointer; font-size: 1.2rem; padding: 4px; transition: color 0.2s;
}
.back-btn:hover { color: var(--sc-accent); }
.sc-chat-title { font-weight: 700; font-size: 1rem; }
.sc-chat-meta { font-size: 0.75rem; color: var(--sc-text-muted); }
.sc-chat-header-right { display: flex; gap: 0.25rem; }

.sc-header-icon-btn {
    width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--sc-border);
    background: var(--sc-surface-2); color: var(--sc-text-muted);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    font-size: 1rem; transition: all 0.2s;
}
.sc-header-icon-btn:hover { border-color: var(--sc-accent); color: var(--sc-accent); }
.sc-header-icon-btn.active { background: var(--sc-gradient); color: #fff; border-color: transparent; }

.sc-status-dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; display: inline-block; margin-right: 4px; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ── Settings Panel ── */
.sc-settings-panel {
    padding: 0.75rem 1rem; background: var(--sc-surface);
    border-left: 1px solid var(--sc-border); border-right: 1px solid var(--sc-border);
    border-bottom: 1px solid var(--sc-border); animation: slideDown 0.3s ease;
}
@keyframes slideDown { from { opacity: 0; max-height: 0; } to { opacity: 1; max-height: 100px; } }

.sc-settings-row { display: flex; align-items: center; justify-content: space-between; }
.sc-settings-row label { font-size: 0.85rem; font-weight: 600; display: flex; align-items: center; gap: 0.4rem; }
.sc-stepper { display: flex; align-items: center; gap: 0; border-radius: 8px; overflow: hidden; border: 1px solid var(--sc-border); }
.sc-stepper button {
    width: 34px; height: 34px; border: none; background: var(--sc-surface-2);
    color: var(--sc-text); font-size: 1.1rem; cursor: pointer; transition: background 0.2s;
}
.sc-stepper button:hover { background: var(--sc-accent); color: #fff; }
.sc-stepper span { padding: 0 0.75rem; font-weight: 700; font-size: 0.9rem; background: var(--sc-surface-2); height: 34px; display: flex; align-items: center; border-left: 1px solid var(--sc-border); border-right: 1px solid var(--sc-border); }
.sc-settings-note { font-size: 0.7rem; color: var(--sc-text-muted); margin-top: 0.4rem; }

/* ── Users Panel ── */
.sc-users-panel {
    padding: 0.75rem 1rem; background: var(--sc-surface);
    border-left: 1px solid var(--sc-border); border-right: 1px solid var(--sc-border);
    border-bottom: 1px solid var(--sc-border); animation: slideDown 0.3s ease;
    max-height: 200px; overflow-y: auto;
}
.sc-users-title { font-size: 0.85rem; font-weight: 700; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 0.4rem; }
.sc-users-list { display: flex; flex-direction: column; gap: 0.4rem; }

.sc-user-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.5rem 0.65rem; background: var(--sc-surface-2);
    border-radius: 8px; font-size: 0.82rem;
}
.sc-user-item-left { display: flex; align-items: center; gap: 0.5rem; }
.sc-user-avatar {
    width: 30px; height: 30px; border-radius: 50%;
    background: var(--sc-gradient); display: flex; align-items: center;
    justify-content: center; font-size: 0.7rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.sc-user-name { font-weight: 600; }
.sc-user-device { font-size: 0.7rem; color: var(--sc-text-muted); }

/* ── Messages ── */
.sc-messages {
    flex: 1; overflow-y: auto; padding: 1rem; display: flex;
    flex-direction: column; gap: 0.6rem; background: var(--sc-bg);
    border-left: 1px solid var(--sc-border); border-right: 1px solid var(--sc-border);
}
.sc-messages > :first-child { margin-top: auto; }
.sc-messages::-webkit-scrollbar { width: 4px; }
.sc-messages::-webkit-scrollbar-track { background: transparent; }
.sc-messages::-webkit-scrollbar-thumb { background: var(--sc-surface-2); border-radius: 4px; }

.sc-msg {
    max-width: 75%; padding: 0.65rem 0.9rem; border-radius: 16px;
    font-size: 0.88rem; line-height: 1.5; animation: msgIn 0.3s ease; position: relative;
}
@keyframes msgIn { from { opacity: 0; transform: scale(0.95) translateY(5px); } to { opacity: 1; transform: scale(1) translateY(0); } }

.sc-msg-sent { align-self: flex-end; background: var(--sc-gradient); color: #fff; border-bottom-right-radius: 4px; }
.sc-msg-received { align-self: flex-start; background: var(--sc-surface-2); color: var(--sc-text); border-bottom-left-radius: 4px; }
.sc-msg-time { font-size: 0.65rem; opacity: 0.6; margin-top: 3px; text-align: right; }
.sc-msg-system {
    align-self: center; background: var(--sc-gradient-subtle); color: var(--sc-text-muted);
    font-size: 0.75rem; padding: 0.35rem 0.9rem; border-radius: 99px; max-width: 90%; text-align: center;
}

/* ── Input Area ── */
.sc-input-area, .sm-input-area {
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.65rem 0.75rem; background: var(--sc-surface);
    border: 1px solid var(--sc-border); border-radius: 0 0 var(--sc-radius) var(--sc-radius); flex-shrink: 0;
}
.sc-msg-input {
    flex: 1; padding: 0.7rem 1rem; background: var(--sc-surface-2);
    border: 1px solid var(--sc-border); border-radius: 99px;
    color: var(--sc-text); font-family: 'Inter', sans-serif; font-size: 0.88rem; outline: none; transition: border-color 0.3s;
}
.sc-msg-input:focus { border-color: var(--sc-accent); }
.sc-msg-input::placeholder { color: var(--sc-text-muted); }

.sc-send-btn {
    width: 42px; height: 42px; border-radius: 50%; border: none;
    background: var(--sc-gradient); color: #fff; font-size: 1.05rem;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: transform 0.2s, box-shadow 0.2s; flex-shrink: 0;
}
.sc-send-btn:hover { transform: scale(1.1); box-shadow: 0 4px 20px rgba(168,85,247,0.4); }

/* ═══ SECRET MODE (Article Disguise) ═══ */
.sm-container {
    position: relative; z-index: 1; width: 100%; max-width: 700px;
    height: 100vh; display: flex; flex-direction: column;
    background: #fafaf8; color: #1a1a1a; animation: fadeUp 0.4s ease;
}

.sm-header {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.75rem 1rem; background: #fff;
    border-bottom: 1px solid #e5e5e5; flex-shrink: 0;
}
.sm-header .back-btn { color: #555; }
.sm-header .back-btn:hover { color: #a855f7; }
.sm-header-title { flex: 1; font-size: 0.9rem; font-weight: 700; color: #333; }
.sm-header .sc-header-icon-btn { background: #f5f5f5; border-color: #ddd; color: #888; }
.sm-header .sc-header-icon-btn:hover { border-color: #a855f7; color: #a855f7; }

.sm-article {
    flex: 1; overflow-y: auto; padding: 1.5rem 1.25rem;
    font-family: 'Merriweather', Georgia, serif; line-height: 1.8;
}
.sm-article::-webkit-scrollbar { width: 3px; }
.sm-article::-webkit-scrollbar-thumb { background: #ddd; border-radius: 3px; }

.sm-article-title {
    font-size: 1.4rem; font-weight: 700; color: #111;
    line-height: 1.35; margin-bottom: 0.5rem;
    font-family: 'Merriweather', Georgia, serif;
}
.sm-article-meta { font-size: 0.75rem; color: #999; margin-bottom: 1.25rem; font-family: 'Inter', sans-serif; }

.sm-article-img { margin-bottom: 1.25rem; }
.sm-fake-img {
    width: 100%; height: 180px; background: linear-gradient(135deg, #e8e6df, #d4d2cb);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    color: #bbb; font-size: 2.5rem;
}

.sm-para {
    font-size: 0.95rem; color: #444; margin-bottom: 1.1rem; text-align: justify;
}

/* Secret message disguised as article paragraph */
.sm-secret-msg {
    font-size: 0.95rem; color: #444; margin-bottom: 1.1rem;
    text-align: justify; position: relative; cursor: pointer;
    transition: all 0.3s ease; padding: 0.5rem 0.6rem;
    border-radius: 8px; border-left: 3px solid transparent;
}
.sm-secret-msg.revealed {
    background: rgba(168,85,247,0.06);
    border-left-color: #a855f7;
    color: #222;
}
.sm-secret-msg .sm-msg-label {
    display: none; font-family: 'Inter', sans-serif;
    font-size: 0.65rem; color: #a855f7; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 2px;
}
.sm-secret-msg.revealed .sm-msg-label { display: block; }

/* Hide text when not revealed in secret mode */
.sm-secret-msg .sm-msg-text {
    filter: blur(4px); transition: filter 0.3s ease; user-select: none;
}
.sm-secret-msg.revealed .sm-msg-text { filter: none; user-select: text; }

.sm-input-area {
    background: #fff; border-top: 1px solid #e5e5e5;
    border-radius: 0;
}
.sm-input-area .sc-msg-input {
    background: #f5f5f5; border-color: #e0e0e0; color: #333;
}
.sm-input-area .sc-msg-input::placeholder { color: #aaa; }
.sm-input-area .sc-msg-input:focus { border-color: #a855f7; }

/* ── Toast ── */
.sc-toast {
    position: fixed; bottom: 2rem; left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--sc-surface); border: 1px solid var(--sc-accent);
    color: var(--sc-text); padding: 0.75rem 1.5rem; border-radius: 99px;
    font-size: 0.85rem; font-weight: 600; z-index: 9999;
    transition: transform 0.4s ease; box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.sc-toast.show { transform: translateX(-50%) translateY(0); }

.sc-error {
    background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3);
    color: #f87171; padding: 0.65rem 1rem; border-radius: var(--sc-radius-sm);
    font-size: 0.82rem; text-align: center; animation: fadeUp 0.3s ease;
}

/* ── Modals ── */
.sc-modal-overlay {
    position: fixed; inset: 0; z-index: 10000;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    padding: 1rem; animation: fadeUp 0.3s ease;
}
.sc-modal {
    background: var(--sc-surface); border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius); padding: 2rem;
    max-width: 400px; width: 100%; text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.sc-modal-icon {
    width: 56px; height: 56px; border-radius: 50%;
    background: rgba(168,85,247,0.15);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.6rem; color: var(--sc-accent); margin-bottom: 1rem;
}
.sc-modal h3 {
    font-size: 1.15rem; font-weight: 800; margin-bottom: 0.5rem;
}
.sc-modal p {
    font-size: 0.88rem; color: var(--sc-text-muted); line-height: 1.5;
}
.sc-modal-actions {
    display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1.25rem;
}

/* ── Message Options & Replies ── */
.sc-msg-options-btn {
    position: absolute; right: 0; top: 0;
    transform: translate(50%, -50%) scale(0);
    width: 24px; height: 24px; border-radius: 50%;
    background: var(--sc-surface); border: 1px solid var(--sc-border);
    color: var(--sc-text); cursor: pointer; display: flex;
    align-items: center; justify-content: center;
    transition: all 0.2s; opacity: 0;
}
.sc-msg:hover .sc-msg-options-btn { transform: translate(50%, -50%) scale(1); opacity: 1; }
.sc-msg-options-btn:hover { background: var(--sc-gradient); color: #fff; border-color: transparent; }

.sc-msg-options-overlay {
    position: fixed; inset: 0; z-index: 10000;
    background: transparent;
}

.sc-msg-options-menu {
    position: absolute; background: var(--sc-surface);
    border: 1px solid var(--sc-border); border-radius: 8px;
    padding: 4px; box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    display: flex; flex-direction: column; gap: 2px;
    min-width: 160px; animation: scaleIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    transform-origin: top left;
}
@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

.msg-option {
    padding: 8px 12px; font-size: 0.85rem; cursor: pointer;
    border-radius: 4px; display: flex; align-items: center; gap: 8px;
    transition: background 0.2s;
}
.msg-option:hover { background: var(--sc-surface-2); }
.msg-option-danger { color: #f87171; }
.msg-option-danger:hover { background: rgba(239,68,68,0.1); }

.sc-reply-preview {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.5rem 1rem; background: var(--sc-surface-2);
    border-top: 1px solid var(--sc-border);
    border-bottom: 1px solid var(--sc-border);
    font-size: 0.8rem; animation: slideDown 0.2s ease;
}
.sc-reply-preview-left { display: flex; align-items: center; gap: 0.5rem; color: var(--sc-text-muted); }
.sc-reply-preview-left i { color: var(--sc-accent); }
.sc-reply-preview-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 250px; }
.sc-reply-preview-close { background: none; border: none; color: var(--sc-text-muted); cursor: pointer; display: flex; }
.sc-reply-preview-close:hover { color: var(--sc-text); }

.sc-msg-reply-bubble {
    background: rgba(0,0,0,0.2); border-radius: 6px;
    padding: 6px 8px; margin-bottom: 6px; font-size: 0.75rem;
    display: flex; align-items: center; gap: 6px;
    border-left: 2px solid var(--sc-accent);
}
.sc-msg-sent .sc-msg-reply-bubble { border-left-color: rgba(255,255,255,0.5); }
.sc-reply-icon { opacity: 0.7; }
.sc-reply-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; opacity: 0.9; }

.sc-msg-deleted { opacity: 0.6; font-style: italic; }

/* ── Contacts & Devices ── */
.sc-device-settings {
    background: rgba(0,0,0,0.15); border-radius: 8px;
    padding: 1rem; border: 1px solid var(--sc-border);
}
.sc-input-sm { padding: 0.6rem 1rem 0.6rem 2.5rem; font-size: 0.85rem; }

.sc-contacts-list {
    display: flex; flex-direction: column; gap: 0.5rem;
    max-height: 200px; overflow-y: auto; padding-right: 4px;
}
.sc-contacts-list::-webkit-scrollbar { width: 4px; }
.sc-contacts-list::-webkit-scrollbar-thumb { background: var(--sc-surface-2); border-radius: 4px; }

.sc-contact-item {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--sc-surface-2); padding: 0.6rem 0.8rem;
    border-radius: 8px; border: 1px solid transparent;
    cursor: pointer; transition: all 0.2s;
}
.sc-contact-item:hover { border-color: var(--sc-accent); transform: translateX(2px); }
.sc-contact-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--sc-gradient); color: #fff; font-weight: bold;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.8rem; flex-shrink: 0;
}
.sc-contact-info { flex: 1; margin-left: 0.75rem; overflow: hidden; }
.sc-contact-name { font-size: 0.85rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sc-contact-id { font-size: 0.65rem; color: var(--sc-text-muted); font-family: monospace; margin-top: 2px; }

.sc-btn-icon-sm {
    background: transparent; border: none; color: var(--sc-text-muted);
    cursor: pointer; font-size: 1.1rem; display: flex; align-items: center; justify-content: center;
}
.sc-btn-icon-sm:hover { color: var(--sc-accent); }

.sc-contact-empty { text-align: center; font-size: 0.8rem; color: var(--sc-text-muted); padding: 1rem; }

/* ── Media Sharing ── */
.sc-attach-btn {
    background: transparent; border: none; color: var(--sc-text-muted);
    font-size: 1.5rem; cursor: pointer; padding: 0.5rem;
    display: flex; align-items: center; justify-content: center;
    transition: color 0.2s; border-radius: 50%;
}
.sc-attach-btn:hover { color: var(--sc-accent); background: var(--sc-surface-2); }

.sc-media-thumbnail {
    max-width: 250px; max-height: 250px; border-radius: 12px;
    cursor: pointer; border: 2px solid rgba(255,255,255,0.05);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    object-fit: cover; margin-bottom: 0.25rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.sc-media-thumbnail:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 16px rgba(0,0,0,0.25);
}
.sc-media-loading {
    display: flex; align-items: center; gap: 0.5rem;
    color: var(--sc-text-muted); font-size: 0.85rem;
    padding: 1rem; border: 1px dashed var(--sc-border);
    border-radius: 8px; justify-content: center;
}

.sc-media-overlay {
    position: fixed; inset: 0; z-index: 10000;
    background: rgba(0,0,0,0.9); display: flex; flex-direction: column;
    align-items: center; justify-content: center;
}
.sc-media-close {
    position: absolute; top: 1rem; right: 1rem;
    background: transparent; border: none; color: #fff;
    font-size: 2rem; cursor: pointer; z-index: 10001;
}
.sc-media-content { max-width: 90vw; max-height: 80vh; display: flex; align-items: center; justify-content: center; }
.sc-media-content img, .sc-media-content video {
    max-width: 100%; max-height: 80vh; object-fit: contain; border-radius: 8px;
}
.sc-media-actions {
    margin-top: 1rem; display: flex; gap: 1rem;
}

/* ── Responsive ── */
@media (max-width: 600px) {
    .sc-page { padding: 0; }
    .sc-card { padding: 1.5rem; margin: 1rem; }
    .sc-chat-container, .sm-container { height: 100vh; max-height: 100vh; max-width: 100%; border-radius: 0; border-left: none; border-right: none; }
    .sc-chat-header { border-radius: 0; border-left: none; border-right: none; }
    .sc-messages { border-left: none; border-right: none; }
    .sc-input-area, .sm-input-area { border-radius: 0; border-left: none; border-right: none; }
    .sc-msg { max-width: 85%; }
    .sc-code-actions { flex-direction: column; }
    .sc-chat-header-right { gap: 0.15rem; }
    .sc-header-icon-btn { width: 32px; height: 32px; font-size: 0.9rem; }
}