/* ============================================
   CHAT REDESIGN - MODERN MESSENGER UI
   WhatsApp-Style Contact List + Clean Chat
   ============================================ */

/* ========================================
   CSS VARIABLES - DESIGN TOKENS
   ======================================== */

:root {
    --chat-bg: #f0f2f5;
    --chat-surface: #ffffff;
    --chat-primary: #E91E63;
    --chat-primary-light: #FCE4EC;
    --chat-primary-dark: #C2185B;
    --chat-text: #1a1a1a;
    --chat-text-muted: #667781;
    --chat-border: #e9edef;
    --chat-hover: #f5f6f6;
    --chat-sent-bg: linear-gradient(135deg, #E91E63 0%, #F06292 100%);
    --chat-received-bg: #ffffff;
    --chat-online: #25D366;
    --chat-typing: #667781;
    --shadow-soft: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-medium: 0 2px 8px rgba(0,0,0,0.12);
    --shadow-strong: 0 4px 16px rgba(0,0,0,0.15);
    --radius-small: 8px;
    --radius-medium: 12px;
    --radius-large: 20px;
    --radius-full: 50%;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* ========================================
   CHAT SCREEN - MAIN CONTAINER
   ======================================== */

#chatScreen {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    background: var(--chat-bg);
    overflow: hidden;
}

/* ========================================
   CONTACT LIST VIEW (WhatsApp Style)
   ======================================== */

#profileSelection {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--chat-surface);
}

/* Contact List Header */
.contact-list-header {
    padding: 16px 20px;
    background: var(--chat-surface);
    border-bottom: 1px solid var(--chat-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.contact-list-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--chat-text);
    margin: 0 0 4px 0;
}

.contact-list-header p {
    font-size: 14px;
    color: var(--chat-text-muted);
    margin: 0;
}

/* Contact List Container */
.contact-list {
    flex: 1;
    overflow-y: auto;
    padding-bottom: 100px;
}

/* Contact Item */
.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--chat-border);
    position: relative;
}

.contact-item:hover {
    background: var(--chat-hover);
}

.contact-item:active {
    background: var(--chat-primary-light);
}

/* Contact Avatar */
.contact-avatar {
    position: relative;
    flex-shrink: 0;
}

.contact-avatar-img {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 600;
    color: white;
    box-shadow: var(--shadow-soft);
}

.contact-status-dot {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 14px;
    height: 14px;
    border-radius: var(--radius-full);
    border: 2px solid var(--chat-surface);
}

.contact-status-dot.online {
    background: var(--chat-online);
}

.contact-status-dot.quiz {
    background: #FF9800;
}

.contact-status-dot.locked {
    background: #9E9E9E;
}

/* Contact Info */
.contact-info {
    flex: 1;
    min-width: 0;
}

.contact-name {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0 0 4px 0;
}

.contact-name h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--chat-text);
    margin: 0;
}

.contact-verified {
    color: var(--chat-primary);
    font-size: 14px;
}

.contact-preview {
    font-size: 14px;
    color: var(--chat-text-muted);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-preview.quiz-status {
    color: #FF9800;
    font-weight: 500;
}

.contact-preview.unlocked {
    color: var(--chat-online);
}

/* Contact Meta (Time/Badge) */
.contact-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 6px;
    flex-shrink: 0;
}

.contact-time {
    font-size: 12px;
    color: var(--chat-text-muted);
}

.contact-badge {
    background: var(--chat-primary);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.contact-arrow {
    color: var(--chat-text-muted);
    transition: transform var(--transition-fast);
}

.contact-item:hover .contact-arrow {
    transform: translateX(4px);
    color: var(--chat-primary);
}

/* ========================================
   ACTUAL CHAT VIEW
   ======================================== */

#actualChat {
    display: flex !important;
    flex-direction: column !important;
    height: 100% !important;
    background: var(--chat-bg) !important;
    overflow: hidden !important;
}

#actualChat.chat-state {
    display: flex !important;
}

#actualChat[style*="display: none"] {
    display: none !important;
}

/* ========================================
   CHAT HEADER - MODERN & CLEAN
   ======================================== */

.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--chat-surface);
    border-bottom: 1px solid var(--chat-border);
    position: sticky;
    top: 0;
    z-index: 20;
    box-shadow: var(--shadow-soft);
}

.chat-back-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--chat-text);
    transition: all var(--transition-fast);
}

.chat-back-btn:hover {
    background: var(--chat-hover);
}

.chat-back-btn:active {
    background: var(--chat-primary-light);
}

.chat-partner {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    cursor: pointer;
}

.chat-partner-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    color: white;
    box-shadow: var(--shadow-soft);
}

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

.chat-partner-name {
    font-size: 17px;
    font-weight: 600;
    color: var(--chat-text);
    margin: 0 0 2px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.chat-partner-status {
    font-size: 13px;
    color: var(--chat-online);
    margin: 0;
}

.chat-partner-status.typing {
    color: var(--chat-typing);
}

/* ========================================
   SOULMATE LEVEL SYSTEM - EMOTIONAL DESIGN
   ======================================== */

.soulmate-progress {
    background: var(--chat-surface);
    padding: 12px 16px;
    border-bottom: 1px solid var(--chat-border);
}

.soulmate-progress-inner {
    display: flex;
    align-items: center;
    gap: 12px;
}

.soulmate-level-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--chat-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

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

.soulmate-level-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.soulmate-level-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--chat-text);
    margin: 0;
}

.soulmate-level-next {
    font-size: 12px;
    color: var(--chat-text-muted);
    margin: 0;
}

.soulmate-progress-track {
    height: 6px;
    background: var(--chat-border);
    border-radius: 3px;
    overflow: hidden;
}

.soulmate-progress-fill {
    height: 100%;
    background: var(--chat-sent-bg);
    border-radius: 3px;
    transition: width 0.5s ease;
}

/* ========================================
   CHAT MESSAGES - CLEAN BUBBLES
   ======================================== */

#actualChat .chat-messages,
.chat-messages {
    flex: 1 1 auto !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    padding: 16px !important;
    padding-bottom: 20px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    background: var(--chat-bg) !important;
    min-height: 0 !important;
}

/* Message Container */
.message {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    max-width: 85%;
    /* animation entfernt – nur .new-message animiert (chat-vibe.css) */
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.sent {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message.received {
    align-self: flex-start;
}

/* Message Avatar (only for received) */
.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    color: white;
    flex-shrink: 0;
}

.message.sent .message-avatar {
    display: none;
}

/* Message Bubble */
.message-bubble {
    padding: 10px 14px;
    border-radius: var(--radius-large);
    position: relative;
    box-shadow: var(--shadow-soft);
}

.message.sent .message-bubble {
    background: var(--chat-sent-bg);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.received .message-bubble {
    background: var(--chat-received-bg);
    color: var(--chat-text);
    border-bottom-left-radius: 4px;
}

.message-bubble p {
    margin: 0 0 4px 0;
    font-size: 15px;
    line-height: 1.4;
    word-wrap: break-word;
}

.message-time {
    font-size: 11px;
    opacity: 0.7;
    display: block;
    text-align: right;
}

.message.received .message-time {
    color: var(--chat-text-muted);
}

/* ========================================
   CHAT INPUT - MODERN & FUNCTIONAL
   ======================================== */

.chat-input-area {
    background: var(--chat-surface) !important;
    padding: 10px 12px !important;
    border-top: 1px solid var(--chat-border) !important;
    position: relative !important;
    bottom: auto !important;
    left: auto !important;
    right: auto !important;
    height: auto !important;
    z-index: 10 !important;
}

/* Override old chat-input-container styles */
#actualChat .chat-input-container {
    display: none !important;
}

.chat-input-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Card Button */
.card-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--chat-primary-light);
    color: var(--chat-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 20px;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.card-btn:hover {
    background: var(--chat-primary);
    color: white;
    transform: scale(1.05);
}

.card-btn:active {
    transform: scale(0.95);
}

/* Input Field Container */
.chat-input-field {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--chat-bg);
    border-radius: 24px;
    padding: 8px 16px;
    min-height: 44px;
}

.chat-input-field input {
    flex: 1;
    border: none;
    background: transparent;
    outline: none;
    font-size: 15px;
    color: var(--chat-text);
}

.chat-input-field input::placeholder {
    color: var(--chat-text-muted);
}

/* Attachment Buttons */
.attach-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    color: var(--chat-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.attach-btn:hover {
    color: var(--chat-primary);
    background: var(--chat-primary-light);
}

/* Send Button */
.send-message-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--chat-sent-bg);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    box-shadow: var(--shadow-medium);
}

.send-message-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-strong);
}

.send-message-btn:active {
    transform: scale(0.95);
}

/* ========================================
   BOTTOM NAVIGATION - CLEAN
   ======================================== */

.app-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--chat-surface);
    border-top: 1px solid var(--chat-border);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 16px;
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--chat-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--radius-medium);
}

.nav-item:hover {
    background: var(--chat-hover);
}

.nav-item.active {
    color: var(--chat-primary);
}

.nav-item span {
    font-size: 11px;
    font-weight: 500;
}

/* ========================================
   SPACING FOR BOTTOM NAV
   ======================================== */

#chatScreen {
    padding-bottom: 70px;
}

.contact-list {
    padding-bottom: 90px;
}

/* ========================================
   VIEW TRANSITIONS
   ======================================== */

.chat-state {
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.chat-state.fade-out {
    opacity: 0;
    transform: translateX(-20px);
}

.chat-state.fade-in {
    opacity: 1;
    transform: translateX(0);
}

/* ========================================
   MOBILE OPTIMIZATIONS
   ======================================== */

@media (max-width: 600px) {
    .contact-item {
        padding: 12px 16px;
    }

    .contact-avatar-img {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .contact-name h3 {
        font-size: 16px;
    }

    .chat-partner-avatar {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .message {
        max-width: 88%;
    }

    .chat-input-field {
        padding: 6px 12px;
    }
}

/* ========================================
   DARK MODE (Future)
   ======================================== */

@media (prefers-color-scheme: dark) {
    :root {
        --chat-bg: #0b141a;
        --chat-surface: #1f2c34;
        --chat-text: #e9edef;
        --chat-text-muted: #8696a0;
        --chat-border: #2a3942;
        --chat-hover: #2a3942;
        --chat-received-bg: #1f2c34;
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

.contact-item:focus,
.chat-back-btn:focus,
.send-message-btn:focus,
.card-btn:focus {
    outline: 2px solid var(--chat-primary);
    outline-offset: 2px;
}