/* ============================================
   CHAT FOOTER REDESIGN - CLEAN 3-COLUMN LAYOUT
   Modern, centered input, stable structure
   ============================================ */

/* ========================================
   CHAT HEADER - SIMPLIFIED (NO CREDITS)
   ======================================== */

/* Remove credits-display button styling if exists */
.chat-header .credits-display {
    display: none !important; /* Force hide if not removed from HTML */
}

/* Header now only contains profile */
.chat-header {
    padding: 16px 20px;
    background: white;
    border-bottom: 1px solid #E0E0E0;
    display: flex;
    align-items: center;
    justify-content: flex-start; /* No need for space-between anymore */
    min-height: 70px;
}

.header-profile {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ========================================
   CHAT INPUT - 3-COLUMN LAYOUT
   ======================================== */

.chat-input-container {
    position: fixed;
    bottom: 60px; /* Above bottom nav */
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid #E0E0E0;
    padding: 12px 16px;
    z-index: 100;
}

.chat-input-wrapper {
    display: grid;
    grid-template-columns: auto 1fr auto; /* Left / Center (flex) / Right */
    gap: 12px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

/* ========================================
   LEFT COLUMN - PLACEHOLDER
   ======================================== */

.chat-input-left {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.menu-placeholder-btn {
    background: transparent;
    border: none;
    color: #BDBDBD; /* Greyed out - disabled state */
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: not-allowed;
    opacity: 0.5;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.menu-placeholder-btn:disabled {
    pointer-events: none;
}

/* Subtle hint that it's coming soon */
.menu-placeholder-btn:hover {
    background: rgba(189, 189, 189, 0.1);
}

/* ========================================
   CENTER COLUMN - INPUT (MAIN FOCUS)
   ======================================== */

.chat-input-center {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #F5F5F5;
    border-radius: 24px;
    padding: 8px 16px;
    flex: 1;
    max-width: 600px; /* Prevent extreme widths on desktop */
    margin: 0 auto; /* Center the input area */
    transition: all 0.2s ease;
}

.chat-input-center:focus-within {
    background: #EEEEEE;
    box-shadow: 0 0 0 2px rgba(233, 30, 99, 0.1);
}

/* Photo button inside center */
.chat-input-center .photo-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    color: #757575;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.chat-input-center .photo-btn:hover {
    background: rgba(233, 30, 99, 0.1);
    color: #E91E63;
}

.chat-input-center .photo-btn:active {
    transform: scale(0.95);
}

/* Input field */
#messageInput {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 15px;
    padding: 8px 4px;
    outline: none;
    color: #212121;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

#messageInput::placeholder {
    color: #9E9E9E;
}

/* ========================================
   RIGHT COLUMN - SEND BUTTON
   ======================================== */

.chat-input-right {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.send-btn {
    background: linear-gradient(135deg, #E91E63 0%, #FF4081 100%);
    border: none;
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(233, 30, 99, 0.3);
    flex-shrink: 0;
}

.send-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(233, 30, 99, 0.4);
}

.send-btn:active {
    transform: scale(0.95);
    box-shadow: 0 2px 6px rgba(233, 30, 99, 0.3);
}

/* Disabled state (no text in input) */
.send-btn:disabled {
    background: #BDBDBD;
    cursor: not-allowed;
    box-shadow: none;
}

.send-btn:disabled:hover {
    transform: none;
}

/* ========================================
   STABILITY - NO LAYOUT SHIFTS
   ======================================== */

/* Prevent container from resizing when typing */
.chat-input-container {
    min-height: 70px; /* Reserve stable height */
}

/* Prevent input from growing vertically */
#messageInput {
    min-height: 20px;
    max-height: 20px;
    overflow: hidden;
    resize: none;
}

/* Grid columns are fixed (no flex-grow issues) */
.chat-input-wrapper {
    will-change: auto; /* Don't trigger will-change */
}

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

@media (max-width: 768px) {
    .chat-input-container {
        padding: 10px 12px;
        bottom: 60px;
    }

    .chat-input-wrapper {
        gap: 8px;
    }

    .chat-input-center {
        max-width: 100%; /* Use full available space */
        padding: 6px 12px;
    }

    #messageInput {
        font-size: 16px; /* Prevent iOS zoom on focus */
    }

    .send-btn {
        width: 40px;
        height: 40px;
    }

    .menu-placeholder-btn {
        padding: 6px;
    }
}

@media (max-width: 480px) {
    .chat-input-wrapper {
        gap: 6px;
    }

    .chat-input-center {
        padding: 6px 10px;
    }

    .send-btn {
        width: 38px;
        height: 38px;
    }
}

/* ========================================
   KEYBOARD OPEN (MOBILE) - PREVENT SHIFT
   ======================================== */

/* When keyboard opens, container stays stable */
@supports (-webkit-touch-callout: none) {
    /* iOS Safari */
    .chat-input-container {
        position: fixed;
        bottom: env(safe-area-inset-bottom, 60px);
    }
}

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

.photo-btn:focus-visible,
.send-btn:focus-visible,
.menu-placeholder-btn:focus-visible {
    outline: 2px solid #E91E63;
    outline-offset: 2px;
}

#messageInput:focus {
    /* No outline needed - container has focus-within style */
}

/* ========================================
   DESKTOP LARGE SCREENS
   ======================================== */

@media (min-width: 1200px) {
    .chat-input-wrapper {
        max-width: 900px; /* Limit width on very large screens */
    }

    .chat-input-center {
        max-width: 600px;
    }
}

/* ========================================
   RTL SUPPORT (IF NEEDED LATER)
   ======================================== */

[dir="rtl"] .chat-input-wrapper {
    grid-template-columns: auto 1fr auto; /* Same, grid auto-adjusts */
}

/* ========================================
   PREVENT FLASH / JANK
   ======================================== */

.chat-input-container,
.chat-input-wrapper,
.chat-input-center {
    contain: layout style; /* CSS containment for stability */
}

/* No transitions on structure changes */
.chat-input-wrapper > * {
    will-change: auto;
}

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

@media (prefers-color-scheme: dark) {
    /* Reserved for future dark mode implementation */
    /* .chat-input-container { background: #1a1a1a; } */
}