:root {
    --dina-primary: #3d5a47;
    --dina-primary-dark: #2d4434;
    --dina-accent: #b2c8ba;
    --dina-cream: #f6f2ea;
    --dina-surface: #ffffff;
    --dina-text: #2b2b2b;
    --dina-text-soft: #6a6a6a;
    --dina-border: #e4ddd0;
    --dina-shadow: 0 14px 38px rgba(45, 68, 52, 0.18);
    --dina-font-body: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --dina-font-display: "Sacramento", "Montserrat", cursive;
}

.dina-chat {
    display: flex;
    flex-direction: column;
    background: var(--dina-surface);
    border: 1px solid var(--dina-border);
    border-radius: 18px;
    overflow: hidden;
    font-family: var(--dina-font-body);
    color: var(--dina-text);
    box-shadow: var(--dina-shadow);
    max-width: 100%;
}
.dina-chat--inline { min-height: 480px; height: 560px; }
.dina-chat--widget { height: 540px; width: 370px; max-width: calc(100vw - 32px); }

.dina-chat__header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 18px;
    background: linear-gradient(135deg, var(--dina-primary) 0%, var(--dina-primary-dark) 100%);
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.dina-chat__avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.28);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--dina-font-display);
    font-size: 28px;
    line-height: 1;
    padding-top: 4px;
    color: #fff;
}
.dina-chat__name {
    display: block;
    font-family: var(--dina-font-display);
    font-weight: 400;
    font-size: 26px;
    line-height: 1;
    letter-spacing: 0.3px;
}
.dina-chat__sub {
    display: block;
    font-size: 11px;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    opacity: 0.85;
    margin-top: 2px;
    font-weight: 500;
}
.dina-chat__close {
    margin-left: auto;
    background: transparent;
    border: 0;
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 8px;
    opacity: 0.85;
    transition: opacity 0.15s ease;
}
.dina-chat__close:hover { opacity: 1; }

.dina-chat__log {
    flex: 1 1 auto;
    padding: 18px;
    overflow-y: auto;
    background: var(--dina-cream);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dina-msg {
    max-width: 85%;
    padding: 11px 14px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-weight: 400;
}
.dina-msg--assistant {
    background: var(--dina-surface);
    border: 1px solid var(--dina-border);
    color: var(--dina-text);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 6px rgba(61, 90, 71, 0.05);
}
.dina-msg--user {
    background: var(--dina-primary);
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}
.dina-msg--typing {
    opacity: 0.7;
    font-style: italic;
    color: var(--dina-text-soft);
}
.dina-msg--error {
    background: #fdecea;
    color: #8a1c13;
    border: 1px solid #f5c6c1;
    align-self: flex-start;
}

.dina-chat__form {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--dina-border);
    background: var(--dina-surface);
}
.dina-chat__input {
    flex: 1;
    resize: none;
    border: 1px solid var(--dina-border);
    border-radius: 12px;
    padding: 11px 14px;
    font: inherit;
    font-family: var(--dina-font-body);
    font-size: 14px;
    color: var(--dina-text);
    max-height: 120px;
    outline: none;
    background: var(--dina-cream);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.dina-chat__input:focus {
    border-color: var(--dina-primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(178, 200, 186, 0.45);
}
.dina-chat__send {
    background: var(--dina-primary);
    color: #fff;
    border: 0;
    border-radius: 12px;
    padding: 0 18px;
    font-family: var(--dina-font-body);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
}
.dina-chat__send:hover { background: var(--dina-primary-dark); }
.dina-chat__send:active { transform: translateY(1px); }
.dina-chat__send:disabled { opacity: 0.5; cursor: not-allowed; }

.dina-widget {
    position: fixed;
    bottom: 24px;
    z-index: 99990;
    font-family: var(--dina-font-body);
}
.dina-widget--right { right: 24px; }
.dina-widget--left  { left: 24px; }

.dina-widget__toggle {
    width: 62px;
    height: 62px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--dina-primary) 0%, var(--dina-primary-dark) 100%);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.25);
    font-size: 26px;
    cursor: pointer;
    box-shadow: 0 10px 28px rgba(45, 68, 52, 0.32);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.dina-widget__toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(45, 68, 52, 0.38);
}
.dina-widget__panel {
    position: absolute;
    bottom: 78px;
}
.dina-widget--right .dina-widget__panel { right: 0; }
.dina-widget--left  .dina-widget__panel { left: 0; }

@media (max-width: 480px) {
    .dina-chat--widget { width: calc(100vw - 24px); height: 70vh; }
    .dina-widget__panel { bottom: 72px; }
    .dina-widget--right { right: 16px; }
    .dina-widget--left  { left: 16px; }
}