/* ============================================================
   DOLPHIN SUPPORT — светлая палитра, лёгкий CSS
   ============================================================ */
:root {
    --dolphin-deep:  #0a3d62;
    --dolphin-blue:  #1e6fa8;
    --dolphin-sky:   #4aa8d8;
    --dolphin-aqua:  #7fd4e8;
    --dolphin-light: #e8f6fb;
    --dolphin-foam:  #f0fafd;
    --dolphin-text:  #1a2a3a;
    --dolphin-muted: #5a7a8a;
    --dolphin-white: #ffffff;

    --radius:      20px;
    --radius-sm:   14px;
    --radius-pill: 999px;
    --shadow:      0 8px 32px rgba(10, 61, 98, 0.12);
    --shadow-hover:0 16px 48px rgba(10, 61, 98, 0.20);
    --transition:  0.15s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Nunito', 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    color: var(--dolphin-text);
    background: var(--dolphin-foam);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--dolphin-blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--dolphin-deep); }
button { font-family: inherit; cursor: pointer; }

.s-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===================== HEADER ===================== */
.s-header {
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(10,61,98,0.06);
    position: sticky; top: 0; z-index: 100;
}
.s-header__inner { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.s-logo { display: inline-flex; align-items: center; gap: 12px; color: var(--dolphin-deep); }
.s-logo--sm .s-logo__img { width: 32px; height: 32px; border-width: 2px; }
.s-logo__img {
    width: 40px; height: 40px; object-fit: cover;
    border: 3px solid var(--dolphin-deep);
    border-radius: var(--radius-sm);
    background: var(--dolphin-white);
}
.s-logo__name { display: flex; flex-direction: column; line-height: 1; }
.s-logo__main { font-size: 17px; font-weight: 900; letter-spacing: -0.02em; color: var(--dolphin-deep); }
.s-logo__sub { font-size: 9px; font-weight: 900; letter-spacing: 0.3em; color: var(--dolphin-sky); text-transform: uppercase; margin-top: 3px; }
.s-nav { display: flex; gap: 10px; align-items: center; }

/* ===================== BUTTONS ===================== */
.s-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 12px 22px; font-size: 12px; font-weight: 900;
    text-transform: uppercase; letter-spacing: 0.12em;
    border-radius: var(--radius-pill);
    border: 2px solid var(--dolphin-deep);
    background: var(--dolphin-deep); color: #fff;
    text-decoration: none; cursor: pointer;
    transition: var(--transition);
}
.s-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); color: #fff; }
.s-btn--primary {
    background: linear-gradient(135deg, var(--dolphin-blue), var(--dolphin-sky));
    border-color: var(--dolphin-deep);
}
.s-btn--outline {
    background: #fff; color: var(--dolphin-deep);
    border-color: var(--dolphin-aqua);
}
.s-btn--outline:hover { color: var(--dolphin-deep); background: var(--dolphin-light); }
.s-btn--ghost {
    background: transparent; color: var(--dolphin-blue);
    border-color: transparent;
}
.s-btn--ghost:hover { background: var(--dolphin-light); box-shadow: none; }
.s-btn--lg { padding: 16px 28px; font-size: 13px; }

/* ===================== HERO ===================== */
.s-hero { padding: 80px 0 100px; text-align: center; }
.s-hero__badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 18px; border-radius: var(--radius-pill);
    background: var(--dolphin-light); color: var(--dolphin-blue);
    font-size: 13px; font-weight: 900;
    border: 1px solid rgba(74,168,216,0.3);
    margin-bottom: 20px;
}
.s-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dolphin-blue); box-shadow: 0 0 0 3px rgba(74,168,216,0.3); }
.s-hero__title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 900; line-height: 1.05; letter-spacing: -0.03em;
    color: var(--dolphin-deep); margin-bottom: 20px;
}
.s-hero__text {
    font-size: 18px; color: var(--dolphin-muted); font-weight: 600;
    max-width: 560px; margin: 0 auto 32px;
}
.s-hero__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 80px; }

.s-cards {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
    max-width: 900px; margin: 0 auto; text-align: left;
}
.s-card {
    background: #fff; padding: 28px 24px; border-radius: var(--radius);
    border: 1px solid rgba(74,168,216,0.15);
    box-shadow: var(--shadow); transition: var(--transition);
}
.s-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--dolphin-aqua); }
.s-card__icon {
    width: 56px; height: 56px; border-radius: 16px;
    display: grid; place-items: center; color: var(--dolphin-deep);
    margin-bottom: 16px;
}
.s-card__icon--blue { background: var(--dolphin-sky); }
.s-card__icon--aqua { background: var(--dolphin-aqua); }
.s-card__icon--sky { background: var(--dolphin-light); }
.s-card__title { font-size: 17px; font-weight: 900; color: var(--dolphin-deep); margin-bottom: 6px; }
.s-card__text { font-size: 14px; color: var(--dolphin-muted); font-weight: 600; }

.s-footer { padding: 32px 0; border-top: 1px solid rgba(74,168,216,0.15); background: var(--dolphin-light); }
.s-footer__inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; color: var(--dolphin-muted); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.15em; }

/* ===================== CHAT LAYOUT ===================== */
.s-chat-body { background: var(--dolphin-foam); height: 100vh; overflow: hidden; }
.s-chat-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: 100vh;
}

.s-chat-side {
    background: #fff;
    border-right: 1px solid rgba(74,168,216,0.15);
    display: flex; flex-direction: column;
    overflow: hidden;
}
.s-chat-side__head {
    padding: 18px 20px;
    display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid rgba(74,168,216,0.15);
}
.s-chat-side__back {
    width: 36px; height: 36px;
    border: 2px solid var(--dolphin-aqua);
    background: #fff; color: var(--dolphin-blue);
    border-radius: 12px; display: grid; place-items: center;
    transition: var(--transition);
}
.s-chat-side__back:hover { background: var(--dolphin-light); transform: translateX(-2px); }

.s-chat-tabs {
    padding: 16px 14px;
    display: flex; flex-direction: column; gap: 6px;
    border-bottom: 1px solid rgba(74,168,216,0.15);
}
.s-chat-tab {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 14px;
    border: 2px solid transparent;
    background: transparent;
    border-radius: 14px;
    color: var(--dolphin-muted); font-weight: 800; font-size: 14px;
    text-align: left; width: 100%;
    transition: var(--transition);
}
.s-chat-tab:hover { background: var(--dolphin-light); color: var(--dolphin-blue); }
.s-chat-tab.is-active {
    background: linear-gradient(135deg, var(--dolphin-blue), var(--dolphin-sky));
    color: #fff;
    box-shadow: 0 6px 18px rgba(30,111,168,0.25);
}
.s-chat-tab svg { flex-shrink: 0; }
.s-chat-tab span { flex: 1; }
.s-chat-tab__badge {
    background: #ef4444; color: #fff;
    font-size: 10px; font-weight: 900;
    padding: 3px 8px; border-radius: var(--radius-pill);
    min-width: 22px; text-align: center;
}
.s-chat-tab__badge.hidden { display: none; }
.s-chat-tab.is-active .s-chat-tab__badge { background: #fff; color: var(--dolphin-blue); }

.s-chat-user {
    margin-top: auto;
    padding: 18px 20px;
    border-top: 1px solid rgba(74,168,216,0.15);
    display: flex; align-items: center; gap: 12px;
    background: var(--dolphin-light);
}
.s-chat-user__name { font-size: 14px; font-weight: 900; color: var(--dolphin-deep); }
.s-chat-user__role { font-size: 11px; font-weight: 700; color: var(--dolphin-muted); text-transform: uppercase; letter-spacing: 0.1em; }

.s-avatar {
    width: 40px; height: 40px; border-radius: 12px;
    display: grid; place-items: center;
    color: #fff; font-weight: 900; font-size: 15px;
    flex-shrink: 0; overflow: hidden;
    border: 2px solid var(--dolphin-aqua);
}
.s-avatar--img { padding: 0; }
.s-avatar--img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.s-avatar--sm { width: 32px; height: 32px; font-size: 13px; border-radius: 10px; }

/* ===================== CHAT MAIN ===================== */
.s-chat-main {
    display: flex; flex-direction: column;
    height: 100vh; overflow: hidden;
    background: var(--dolphin-foam);
}
.s-chat-head {
    padding: 18px 28px;
    background: #fff;
    border-bottom: 1px solid rgba(74,168,216,0.15);
}
.s-chat-head__title { font-size: 18px; font-weight: 900; color: var(--dolphin-deep); }
.s-chat-head__sub { font-size: 13px; font-weight: 600; color: var(--dolphin-muted); margin-top: 2px; }

.s-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px 28px;
    display: flex; flex-direction: column; gap: 4px;
}
.s-chat-date {
    text-align: center;
    font-size: 11px; font-weight: 900;
    color: var(--dolphin-muted);
    text-transform: uppercase; letter-spacing: 0.15em;
    margin: 16px 0 12px;
}
.s-chat-msg { display: flex; gap: 10px; max-width: 78%; margin-bottom: 8px; }
.s-chat-msg--mine { align-self: flex-end; flex-direction: row-reverse; }
.s-chat-msg--other { align-self: flex-start; }
.s-chat-msg--system {
    align-self: center; max-width: 80%;
    text-align: center; flex-direction: column; align-items: center;
}
.s-chat-msg__avatar { flex-shrink: 0; }
.s-chat-msg__body { display: flex; flex-direction: column; min-width: 0; }
.s-chat-msg--mine .s-chat-msg__body { align-items: flex-end; }
.s-chat-msg__sender {
    font-size: 11px; font-weight: 900; color: var(--dolphin-muted);
    text-transform: uppercase; letter-spacing: 0.1em;
    margin-bottom: 4px; padding: 0 4px;
}
.s-chat-msg__bubble {
    background: #fff;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 15px; font-weight: 600;
    color: var(--dolphin-text);
    line-height: 1.5;
    word-wrap: break-word;
    border: 1px solid rgba(74,168,216,0.12);
    box-shadow: 0 2px 8px rgba(10,61,98,0.05);
    white-space: pre-wrap;
}
.s-chat-msg--mine .s-chat-msg__bubble {
    background: linear-gradient(135deg, var(--dolphin-blue), var(--dolphin-sky));
    color: #fff;
    border-color: var(--dolphin-deep);
}
.s-chat-msg--system .s-chat-msg__bubble {
    background: var(--dolphin-light);
    color: var(--dolphin-deep);
    font-size: 13px;
    border: 1px dashed var(--dolphin-aqua);
}
.s-chat-msg__time {
    font-size: 10px; font-weight: 700;
    color: var(--dolphin-muted);
    margin-top: 4px; padding: 0 4px;
    opacity: 0.8;
}
.s-chat-msg__attachments { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; }
.s-chat-att {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.9);
    border: 1px solid rgba(74,168,216,0.3);
    border-radius: 10px;
    font-size: 12px; font-weight: 700;
    color: var(--dolphin-blue);
}
.s-chat-msg--mine .s-chat-att { background: rgba(255,255,255,0.2); color: #fff; border-color: rgba(255,255,255,0.4); }
.s-chat-att--img { padding: 0; border: none; background: none; }
.s-chat-att--img img { max-width: 220px; max-height: 220px; border-radius: 12px; display: block; }

.s-chat-empty { text-align: center; padding: 60px 20px; color: var(--dolphin-muted); }
.s-chat-empty h4 { font-size: 18px; font-weight: 900; color: var(--dolphin-deep); margin-bottom: 6px; }
.s-chat-empty p { font-size: 14px; font-weight: 600; }

.s-spinner-lg {
    width: 40px; height: 40px;
    border: 4px solid var(--dolphin-light);
    border-top-color: var(--dolphin-blue);
    border-radius: 50%;
    margin: 0 auto;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===================== COMPOSER ===================== */
.s-chat-composer {
    border-top: 1px solid rgba(74,168,216,0.15);
    background: #fff;
    padding: 14px 20px;
}
.s-chat-attach { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.s-chat-pending {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 12px;
    background: var(--dolphin-light);
    border: 1px dashed var(--dolphin-aqua);
    border-radius: 10px;
    font-size: 12px; font-weight: 700; color: var(--dolphin-deep);
}
.s-chat-pending button {
    background: transparent; border: none;
    color: var(--dolphin-muted); font-size: 18px; line-height: 1;
    cursor: pointer;
}
.s-chat-composer__row {
    display: flex; align-items: flex-end; gap: 10px;
}
.s-chat-icon-btn {
    width: 44px; height: 44px;
    border: 2px solid var(--dolphin-aqua);
    background: #fff; color: var(--dolphin-blue);
    border-radius: 12px; display: grid; place-items: center;
    flex-shrink: 0;
    transition: var(--transition);
}
.s-chat-icon-btn:hover { background: var(--dolphin-light); }
.s-chat-input {
    flex: 1;
    min-height: 44px; max-height: 140px;
    padding: 12px 16px;
    border: 2px solid var(--dolphin-aqua);
    border-radius: 14px;
    font-family: inherit; font-size: 15px; font-weight: 600;
    color: var(--dolphin-text);
    background: var(--dolphin-foam);
    resize: none; outline: none;
    transition: var(--transition);
}
.s-chat-input:focus { border-color: var(--dolphin-blue); background: #fff; }
.s-chat-send {
    width: 44px; height: 44px;
    border: 2px solid var(--dolphin-deep);
    background: linear-gradient(135deg, var(--dolphin-blue), var(--dolphin-sky));
    color: #fff;
    border-radius: 12px; display: grid; place-items: center;
    flex-shrink: 0;
    transition: var(--transition);
}
.s-chat-send:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(30,111,168,0.3); }
.s-chat-send:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ===================== ADAPTIVE ===================== */
@media (max-width: 900px) {
    .s-chat-layout { grid-template-columns: 1fr; }
    .s-chat-side {
        display: none;
    }
    .s-chat-side.is-open { display: flex; position: fixed; inset: 0; z-index: 200; }
    .s-cards { grid-template-columns: 1fr; }
    .s-hero { padding: 40px 0 60px; }
    .s-hero__actions { flex-direction: column; align-items: stretch; }
    .s-hero__actions .s-btn { width: 100%; }
    .s-chat-messages { padding: 16px; }
    .s-chat-msg { max-width: 90%; }
}
</style>
</body>
</html>