/* ============================================
   CHAT LAYOUT FINAL FIX
   Strukturell sauberes Layout ohne fixed-Overlays
   ============================================ */

/* ========================================
   CRITICAL: CHAT SCREEN STRUCTURE
   ======================================== */

/* Chat Screen: Flexbox Container (Full Height) */
#chatScreen {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh; /* Dynamic viewport height for mobile */
    overflow: hidden;
}

/* ========================================
   PROFILE SELECTION STATE
   ======================================== */

#profileSelection {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.profile-selection-container {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 20px 16px;
    padding-bottom: 100px; /* Space for bottom nav */
}

/* ========================================
   ACTUAL CHAT STATE - PROPER STRUCTURE
   ======================================== */

#actualChat {
    display: flex !important;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* Chat Header: Fixed at top of chat */
.chat-header {
    flex-shrink: 0; /* Don't shrink */
    position: sticky;
    top: 0;
    z-index: 10;
    background: white;
    border-bottom: 1px solid #e0e0e0;
}

/* Open Quizzes List: Below header, before messages */
.open-quizzes-list {
    flex-shrink: 0; /* Don't shrink */
    /* Existing styles from profile-credits-layout.css apply */
}

/* Chat Messages: GROWS to fill available space, SCROLLS */
.chat-messages {
    flex: 1 1 auto; /* Grow to fill, shrink if needed, auto basis */
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    padding: 16px;
    padding-bottom: 20px !important; /* Remove excess padding */

    /* Scroll behavior */
    scroll-behavior: smooth;

    /* Performance */
    contain: layout style;
    will-change: scroll-position;
}

/* CRITICAL FIX: Chat Input Container - PART OF FLOW (NOT FIXED) */
.chat-input-container {
    flex-shrink: 0; /* Don't shrink */

    /* REMOVED: position: fixed */
    /* Now part of normal document flow */

    background: white;
    border-top: 1px solid #e0e0e0;
    padding: 12px 16px;
    z-index: 1; /* Just above messages, but not fixed */
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);

    /* Ensure it stays at bottom of flex container */
    order: 999;
}

/* ========================================
   BOTTOM NAVIGATION - STAYS FIXED
   ======================================== */

/* App Nav: Fixed at bottom (THIS IS OK - it's the main nav) */
.app-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: white;
    border-top: 1px solid #e0e0e0;
    height: 80px;
    /* Other styles from style.css apply */
}

/* CRITICAL: Account for bottom nav in chat screen */
#chatScreen {
    padding-bottom: 80px; /* Height of app-nav */
}

/* ========================================
   PROFILE LIST (NOT SINGLE CARD)
   ======================================== */

/* Profile List Header */
.profile-list-header {
    margin-bottom: 16px;
}

.profile-list-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 8px 0;
}

.profile-list-subtitle {
    font-size: 14px;
    color: #666;
    margin: 0;
}

/* Profile List Container - SCALABLE LIST */
.profile-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

/* Profile List Item - NOT A CARD, A LIST ITEM */
.profile-list-item {
    display: grid;
    grid-template-columns: 56px 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 12px 16px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.profile-list-item:hover {
    background: #fafafa;
    border-color: #E91E63;
    transform: translateX(4px);
    box-shadow: 0 2px 8px rgba(233, 30, 99, 0.15);
}

.profile-list-item:active {
    transform: translateX(2px);
}

/* Profile Avatar Section */
.profile-list-avatar {
    width: 56px;
    height: 56px;
    position: relative;
    flex-shrink: 0;
}

.profile-list-avatar-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.profile-list-status-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.profile-list-status-badge.online {
    background: #4CAF50;
}

.profile-list-status-badge.offline {
    background: #9E9E9E;
}

.profile-list-status-badge.quiz-open {
    background: #FF9800;
}

/* Profile Info Section */
.profile-list-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.profile-list-name {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.profile-list-verified {
    color: #27ae60;
    font-size: 14px;
}

.profile-list-tagline {
    font-size: 14px;
    color: #666;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.profile-list-status {
    font-size: 13px;
    color: #999;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 4px;
}

.profile-list-status.quiz-open {
    color: #FF9800;
    font-weight: 500;
}

.profile-list-status.unlocked {
    color: #4CAF50;
    font-weight: 500;
}

/* Profile Action Section */
.profile-list-action {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.profile-list-arrow {
    color: #999;
    transition: all 0.2s ease;
}

.profile-list-item:hover .profile-list-arrow {
    color: #E91E63;
    transform: translateX(4px);
}

/* ========================================
   QUIZ OVERLAY - COVERS EVERYTHING
   ======================================== */

/* Quiz Flow: Fullscreen overlay (unchanged) */
#quizFlow.active {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    background: white;
    display: flex !important;
}

/* Hide chat input and nav when quiz active */
body.quiz-open .chat-input-container,
body.quiz-open .app-nav {
    display: none !important;
}

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

@media (max-width: 600px) {
    .profile-list-item {
        grid-template-columns: 48px 1fr auto;
        gap: 10px;
        padding: 10px 12px;
    }

    .profile-list-avatar,
    .profile-list-avatar-circle {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }

    .profile-list-name {
        font-size: 15px;
    }

    .profile-list-tagline {
        font-size: 13px;
    }

    .profile-list-status {
        font-size: 12px;
    }

    .chat-messages {
        padding: 12px;
    }
}

/* ========================================
   PREVENT LAYOUT SHIFTS
   ======================================== */

/* Ensure smooth transitions */
.chat-messages,
.chat-input-container,
.profile-list-item {
    will-change: transform;
}

/* Prevent input focus zoom on mobile */
@media (max-width: 600px) {
    input,
    textarea {
        font-size: 16px !important; /* Prevents iOS zoom */
    }
}

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

.profile-list-item:focus {
    outline: 2px solid #E91E63;
    outline-offset: 2px;
}

.profile-list-item:focus:not(:focus-visible) {
    outline: none;
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ========================================
   OVERRIDE PROBLEMATIC STYLES
   ======================================== */

/* Remove old fixed positioning from previous CSS */
.chat-input-container {
    position: relative !important; /* Override fixed */
    bottom: auto !important;
}

/* Ensure messages don't have excessive padding */
.chat-messages {
    padding-bottom: 20px !important; /* Override 160px */
}

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

@media (prefers-color-scheme: dark) {
    #chatScreen,
    #actualChat,
    .chat-input-container,
    .app-nav {
        /* Dark mode styles can be added here */
    }
}