/* ============================================
   서울청년 AI 상담봇 - Enterprise Chatbot Widget
   Design: Dark Navy (#1a1f36) + Mint (#2dd4a8)
   Level: Channel Talk / Intercom grade
   ============================================ */

:root {
    --sybot-navy: #1a1f36;
    --sybot-navy-light: #252b45;
    --sybot-navy-dark: #12162a;
    --sybot-mint: #2dd4a8;
    --sybot-mint-light: #5ef0c8;
    --sybot-mint-dark: #1fb88e;
    --sybot-mint-glow: rgba(45, 212, 168, 0.25);
    --sybot-white: #ffffff;
    --sybot-gray-50: #f8f9fc;
    --sybot-gray-100: #eef0f5;
    --sybot-gray-200: #d8dce6;
    --sybot-gray-300: #bcc2d0;
    --sybot-gray-400: #9aa0b4;
    --sybot-gray-500: #777d94;
    --sybot-gray-600: #5c6178;
    --sybot-text: #2c3040;
    --sybot-text-light: #6b7086;
    --sybot-red: #ef4444;
    --sybot-red-light: #fef2f2;
    --sybot-radius: 16px;
    --sybot-radius-sm: 10px;
    --sybot-shadow-lg: 0 16px 56px rgba(26, 31, 54, 0.28), 0 0 0 1px rgba(26, 31, 54, 0.05);
    --sybot-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --sybot-transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --sybot-font: -apple-system, BlinkMacSystemFont, 'Pretendard', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
    --sybot-window-w: 400px;
    --sybot-window-h: 600px;
}

.sybot-widget, .sybot-widget * {
    margin: 0; padding: 0; box-sizing: border-box;
    font-family: var(--sybot-font);
    -webkit-font-smoothing: antialiased;
}

/* ---- TOGGLE BUTTON ---- */
.sybot-toggle {
    position: fixed; bottom: 24px; right: 24px; z-index: 99999;
    width: 60px; height: 60px; border-radius: 50%; border: none;
    background: linear-gradient(135deg, var(--sybot-mint), var(--sybot-mint-dark));
    color: var(--sybot-white); cursor: pointer;
    box-shadow: 0 4px 20px rgba(45,212,168,0.35);
    transition: var(--sybot-transition);
    display: flex; align-items: center; justify-content: center;
    outline: none; -webkit-tap-highlight-color: transparent;
}
.sybot-toggle:hover { transform: scale(1.08); box-shadow: 0 6px 28px rgba(45,212,168,0.45); }
.sybot-toggle:active { transform: scale(0.95); }
.sybot-toggle--pulse { animation: sybot-pulse 2s cubic-bezier(0.4,0,0.6,1) 3; }
@keyframes sybot-pulse {
    0%,100% { box-shadow: 0 4px 20px rgba(45,212,168,0.35), 0 0 0 0 rgba(45,212,168,0.3); }
    50% { box-shadow: 0 4px 20px rgba(45,212,168,0.35), 0 0 0 12px rgba(45,212,168,0); }
}
.sybot-toggle svg {
    width: 26px; height: 26px; transition: var(--sybot-transition); position: absolute;
}
.sybot-toggle .sybot-icon-chat { opacity: 1; transform: scale(1) rotate(0); }
.sybot-toggle .sybot-icon-close { opacity: 0; transform: scale(0.5) rotate(-90deg); }
.sybot-toggle.is-open .sybot-icon-chat { opacity: 0; transform: scale(0.5) rotate(90deg); }
.sybot-toggle.is-open .sybot-icon-close { opacity: 1; transform: scale(1) rotate(0); }

/* Badge */
.sybot-badge {
    position: absolute; top: -4px; right: -4px;
    min-width: 20px; height: 20px; border-radius: 10px; padding: 0 5px;
    background: var(--sybot-red); color: var(--sybot-white);
    font-size: 11px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    border: 2px solid var(--sybot-white);
    opacity: 0; transform: scale(0.5);
    transition: 0.4s cubic-bezier(0.34,1.56,0.64,1);
    pointer-events: none;
}
.sybot-badge.is-visible { opacity: 1; transform: scale(1); }

/* Tooltip */
.sybot-tooltip {
    position: fixed; bottom: 92px; right: 24px; z-index: 99998;
    background: var(--sybot-white); color: var(--sybot-text);
    padding: 10px 16px; border-radius: 10px;
    font-size: 13px; font-weight: 500;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    white-space: nowrap;
    opacity: 0; transform: translateY(8px);
    transition: var(--sybot-transition); pointer-events: none;
}
.sybot-tooltip::after {
    content: ''; position: absolute; bottom: -6px; right: 24px;
    width: 12px; height: 12px; background: var(--sybot-white);
    transform: rotate(45deg); box-shadow: 2px 2px 4px rgba(0,0,0,0.04);
}
.sybot-tooltip.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.sybot-tooltip-close {
    display: inline-flex; margin-left: 10px; cursor: pointer;
    color: var(--sybot-gray-400); font-size: 16px; vertical-align: middle; line-height: 1;
}
.sybot-tooltip-close:hover { color: var(--sybot-gray-600); }

/* ---- CHAT WINDOW ---- */
.sybot-window {
    position: fixed; bottom: 96px; right: 24px; z-index: 99998;
    width: var(--sybot-window-w); max-width: calc(100vw - 32px);
    height: var(--sybot-window-h); max-height: calc(100vh - 120px);
    border-radius: var(--sybot-radius); background: var(--sybot-white);
    box-shadow: var(--sybot-shadow-lg);
    display: flex; flex-direction: column; overflow: hidden;
    opacity: 0; visibility: hidden;
    transform: translateY(20px) scale(0.95); transform-origin: bottom right;
    transition: opacity 0.25s ease, visibility 0.25s ease,
                transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
.sybot-window.is-open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }

/* ---- HEADER ---- */
.sybot-header {
    background: linear-gradient(135deg, var(--sybot-navy), var(--sybot-navy-light));
    padding: 16px 18px; display: flex; align-items: center; gap: 12px; flex-shrink: 0;
    position: relative;
}
.sybot-header::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(45,212,168,0.2), transparent);
}
.sybot-header-avatar {
    width: 40px; height: 40px; border-radius: 12px;
    background: linear-gradient(135deg, rgba(45,212,168,0.15), rgba(45,212,168,0.05));
    border: 1.5px solid rgba(45,212,168,0.3);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; position: relative;
}
.sybot-header-avatar svg { width: 20px; height: 20px; color: var(--sybot-mint); }
.sybot-header-avatar::after {
    content: ''; position: absolute; bottom: -2px; right: -2px;
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--sybot-mint); border: 2px solid var(--sybot-navy);
}
.sybot-header-info { flex: 1; min-width: 0; }
.sybot-header-title { font-size: 15px; font-weight: 700; color: var(--sybot-white); line-height: 1.3; }
.sybot-header-subtitle { font-size: 12px; color: var(--sybot-gray-400); margin-top: 2px; line-height: 1.3; }
.sybot-header-actions { display: flex; gap: 4px; }
.sybot-header-btn {
    width: 32px; height: 32px; border-radius: 8px; border: none;
    background: rgba(255,255,255,0.08); color: var(--sybot-gray-400);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: var(--sybot-transition-fast); outline: none;
}
.sybot-header-btn:hover { background: rgba(255,255,255,0.15); color: var(--sybot-white); }
.sybot-header-btn svg { width: 16px; height: 16px; }

/* ---- MESSAGES AREA ---- */
.sybot-messages {
    flex: 1; overflow-y: auto; overflow-x: hidden;
    padding: 16px; display: flex; flex-direction: column; gap: 4px;
    background: var(--sybot-gray-50); scroll-behavior: smooth; overscroll-behavior: contain;
}
.sybot-messages::-webkit-scrollbar { width: 5px; }
.sybot-messages::-webkit-scrollbar-track { background: transparent; }
.sybot-messages::-webkit-scrollbar-thumb { background: var(--sybot-gray-200); border-radius: 5px; }

/* Date separator */
.sybot-date-sep {
    display: flex; align-items: center; gap: 12px; margin: 8px 0;
}
.sybot-date-sep::before, .sybot-date-sep::after {
    content: ''; flex: 1; height: 1px; background: var(--sybot-gray-200);
}
.sybot-date-sep span { font-size: 11px; color: var(--sybot-gray-400); white-space: nowrap; }

/* Message row */
.sybot-msg-row {
    display: flex; flex-direction: column;
    animation: sybot-msgIn 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
.sybot-msg-row--user { align-items: flex-end; }
.sybot-msg-row--bot { align-items: flex-start; }
@keyframes sybot-msgIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Message bubble */
.sybot-msg {
    max-width: 82%; padding: 10px 14px;
    font-size: 14px; line-height: 1.65;
    word-break: keep-all; overflow-wrap: break-word;
}
.sybot-msg--user {
    background: var(--sybot-navy); color: var(--sybot-white);
    border-radius: 14px 14px 4px 14px;
}
.sybot-msg--bot {
    background: var(--sybot-white); color: var(--sybot-text);
    border-radius: 14px 14px 14px 4px;
    border: 1px solid var(--sybot-gray-100);
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}
.sybot-msg-row--bot + .sybot-msg-row--bot { margin-top: -2px; }
.sybot-msg-row--bot + .sybot-msg-row--bot .sybot-msg--bot { border-radius: 4px 14px 14px 4px; }
.sybot-msg-row--user + .sybot-msg-row--user { margin-top: -2px; }
.sybot-msg-row--user + .sybot-msg-row--user .sybot-msg--user { border-radius: 14px 4px 4px 14px; }

/* Bot markdown */
.sybot-msg--bot p { margin: 0 0 8px; }
.sybot-msg--bot p:last-child { margin-bottom: 0; }
.sybot-msg--bot strong, .sybot-msg--bot b { font-weight: 600; color: var(--sybot-navy); }
.sybot-msg--bot a {
    color: var(--sybot-mint-dark); text-decoration: none;
    border-bottom: 1px solid rgba(31,184,142,0.3);
    transition: var(--sybot-transition-fast);
}
.sybot-msg--bot a:hover { color: var(--sybot-navy); border-bottom-color: var(--sybot-navy); }
.sybot-msg--bot ul, .sybot-msg--bot ol { margin: 6px 0; padding-left: 18px; }
.sybot-msg--bot li { margin-bottom: 4px; }

/* Timestamp */
.sybot-msg-time { font-size: 11px; color: var(--sybot-gray-400); margin-top: 4px; padding: 0 4px; }

/* Welcome card */
.sybot-welcome {
    background: var(--sybot-white); border-radius: 14px; padding: 20px;
    border: 1px solid var(--sybot-gray-100); box-shadow: 0 1px 3px rgba(0,0,0,0.03);
    text-align: center; margin-bottom: 8px;
}
.sybot-welcome-icon {
    width: 48px; height: 48px; border-radius: 14px;
    background: linear-gradient(135deg, rgba(45,212,168,0.12), rgba(45,212,168,0.04));
    display: flex; align-items: center; justify-content: center; margin: 0 auto 12px;
}
.sybot-welcome-icon svg { width: 24px; height: 24px; color: var(--sybot-mint); }
.sybot-welcome h4 { font-size: 15px; font-weight: 700; color: var(--sybot-text); margin-bottom: 6px; }
.sybot-welcome p { font-size: 13px; color: var(--sybot-text-light); line-height: 1.5; }

/* Quick reply chips */
.sybot-quick-replies { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.sybot-chip {
    padding: 8px 14px; border-radius: 20px;
    border: 1px solid var(--sybot-gray-200); background: var(--sybot-white);
    color: var(--sybot-gray-600); font-size: 13px; cursor: pointer;
    transition: var(--sybot-transition-fast);
    white-space: nowrap; outline: none; line-height: 1.3;
}
.sybot-chip:hover { border-color: var(--sybot-mint); color: var(--sybot-mint-dark); background: rgba(45,212,168,0.05); }
.sybot-chip:active { transform: scale(0.96); }

/* Typing indicator */
.sybot-typing-row { display: none; align-items: flex-start; animation: sybot-msgIn 0.3s ease; }
.sybot-typing-row.is-visible { display: flex; }
.sybot-typing-bubble {
    display: flex; gap: 4px; padding: 14px 18px;
    background: var(--sybot-white); border-radius: 14px 14px 14px 4px;
    border: 1px solid var(--sybot-gray-100);
}
.sybot-typing-bubble span {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--sybot-gray-300);
    animation: sybot-typingDot 1.4s ease-in-out infinite;
}
.sybot-typing-bubble span:nth-child(2) { animation-delay: 0.2s; }
.sybot-typing-bubble span:nth-child(3) { animation-delay: 0.4s; }
@keyframes sybot-typingDot {
    0%,60%,100% { transform: translateY(0); background: var(--sybot-gray-300); }
    30% { transform: translateY(-5px); background: var(--sybot-mint); }
}

/* Streaming cursor */
.sybot-cursor {
    display: inline-block; width: 2px; height: 16px;
    background: var(--sybot-mint); margin-left: 2px; vertical-align: text-bottom;
    animation: sybot-blink 0.8s step-end infinite;
}
@keyframes sybot-blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* Error */
.sybot-error {
    display: flex; align-items: center; gap: 8px; padding: 10px 14px;
    background: var(--sybot-red-light); border-radius: 10px;
    font-size: 13px; color: var(--sybot-red);
}
.sybot-error svg { width: 16px; height: 16px; flex-shrink: 0; }
.sybot-error-retry {
    margin-left: auto; padding: 4px 10px; border-radius: 6px;
    border: 1px solid var(--sybot-red); background: transparent;
    color: var(--sybot-red); font-size: 12px; font-weight: 600;
    cursor: pointer; white-space: nowrap; transition: var(--sybot-transition-fast);
}
.sybot-error-retry:hover { background: var(--sybot-red); color: var(--sybot-white); }

/* Feedback buttons */
.sybot-feedback {
    display: flex; align-items: center; gap: 6px;
    margin-top: 2px; margin-bottom: 4px; padding: 0 4px;
}
.sybot-feedback-label {
    font-size: 11px; color: var(--sybot-gray-400);
}
.sybot-feedback-btn {
    width: 28px; height: 28px; border-radius: 50%;
    border: 1px solid var(--sybot-gray-200); background: var(--sybot-white);
    cursor: pointer; font-size: 13px; display: flex; align-items: center; justify-content: center;
    transition: var(--sybot-transition-fast); outline: none;
    padding: 0; line-height: 1;
}
.sybot-feedback-btn:hover { border-color: var(--sybot-mint); background: rgba(45,212,168,0.05); transform: scale(1.15); }
.sybot-feedback-btn:disabled { opacity: 0.5; cursor: default; transform: none; }
.sybot-feedback-btn.is-selected { border-color: var(--sybot-mint); background: rgba(45,212,168,0.12); transform: scale(1.1); }
.sybot-feedback-done {
    font-size: 12px; color: var(--sybot-gray-500); font-style: italic;
}

/* ---- INPUT AREA ---- */
.sybot-input-area {
    padding: 12px 14px; background: var(--sybot-white);
    border-top: 1px solid var(--sybot-gray-100);
    display: flex; align-items: flex-end; gap: 8px; flex-shrink: 0;
}
.sybot-input-wrap { flex: 1; position: relative; }
.sybot-input {
    width: 100%; border: 1.5px solid var(--sybot-gray-200);
    border-radius: var(--sybot-radius-sm);
    padding: 10px 14px; font-size: 14px; line-height: 1.5;
    resize: none; min-height: 42px; max-height: 110px;
    color: var(--sybot-text); background: var(--sybot-gray-50);
    outline: none; transition: var(--sybot-transition-fast);
    font-family: var(--sybot-font);
}
.sybot-input::placeholder { color: var(--sybot-gray-400); }
.sybot-input:focus {
    border-color: var(--sybot-mint); background: var(--sybot-white);
    box-shadow: 0 0 0 3px var(--sybot-mint-glow);
}
.sybot-input:disabled { opacity: 0.6; cursor: not-allowed; }
.sybot-send-btn {
    width: 42px; height: 42px; border-radius: var(--sybot-radius-sm);
    border: none; background: var(--sybot-mint); color: var(--sybot-white);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: var(--sybot-transition-fast); flex-shrink: 0; outline: none;
}
.sybot-send-btn:hover:not(:disabled) { background: var(--sybot-mint-dark); transform: scale(1.05); }
.sybot-send-btn:active:not(:disabled) { transform: scale(0.95); }
.sybot-send-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.sybot-send-btn svg { width: 18px; height: 18px; }

/* ---- FOOTER ---- */
.sybot-footer {
    padding: 8px 14px; text-align: center; font-size: 11px;
    color: var(--sybot-gray-400); background: var(--sybot-white);
    border-top: 1px solid var(--sybot-gray-100); flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; gap: 4px;
}
.sybot-footer svg { width: 12px; height: 12px; opacity: 0.5; }

/* ---- CONFIRM DIALOG ---- */
.sybot-confirm-overlay {
    position: absolute; inset: 0; background: rgba(26,31,54,0.5);
    backdrop-filter: blur(4px); z-index: 10;
    display: none; align-items: center; justify-content: center; padding: 24px;
}
.sybot-confirm-overlay.is-visible { display: flex; }
.sybot-confirm-box {
    background: var(--sybot-white); border-radius: 14px; padding: 24px;
    width: 100%; max-width: 280px; text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15); animation: sybot-msgIn 0.25s ease;
}
.sybot-confirm-box h5 { font-size: 15px; font-weight: 700; color: var(--sybot-text); margin-bottom: 8px; }
.sybot-confirm-box p { font-size: 13px; color: var(--sybot-text-light); margin-bottom: 18px; line-height: 1.5; }
.sybot-confirm-actions { display: flex; gap: 8px; }
.sybot-confirm-actions button {
    flex: 1; padding: 10px; border-radius: 10px; border: none;
    font-size: 13px; font-weight: 600; cursor: pointer; outline: none;
    transition: var(--sybot-transition-fast);
}
.sybot-confirm-cancel { background: var(--sybot-gray-100); color: var(--sybot-gray-600); }
.sybot-confirm-cancel:hover { background: var(--sybot-gray-200); }
.sybot-confirm-ok { background: var(--sybot-red); color: var(--sybot-white); }
.sybot-confirm-ok:hover { background: #dc2626; }

/* Network bar */
.sybot-network-bar {
    padding: 6px 14px; font-size: 12px; text-align: center;
    background: #fef3c7; color: #92400e; display: none; flex-shrink: 0;
}
.sybot-network-bar.is-offline { display: block; }

/* ---- MOBILE ---- */
@media (max-width: 480px) {
    .sybot-window {
        bottom: 0; right: 0; width: 100vw; max-width: 100vw;
        height: 100vh; height: 100dvh; max-height: 100vh; max-height: 100dvh;
        border-radius: 0; transform-origin: bottom center;
    }
    .sybot-header { padding: 14px 16px; padding-top: max(14px, env(safe-area-inset-top)); }
    .sybot-messages { padding: 12px; }
    .sybot-input-area { padding: 10px 12px; padding-bottom: max(10px, env(safe-area-inset-bottom)); }
    .sybot-tooltip { right: 16px; bottom: 88px; }
    .sybot-toggle { bottom: 20px; right: 20px; }
    .sybot-msg { max-width: 88%; }
}

@media print { .sybot-widget { display: none !important; } }