/* --- GENEL AYARLAR --- */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }

body { 
    background-color: #f4f7f9; color: #333; display: flex; flex-direction: column; min-height: 100vh; 
    overflow-x: hidden; 
}

/* --- ÜST MENÜ (NAVBAR) --- */
.navbar { display: flex; justify-content: space-between; align-items: center; background-color: #ff2d2e; padding: 0px 50px; height: 75px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); position: relative; z-index: 1000;}

.nav-left { display: flex; align-items: center; gap: 30px; }
.logo img { height: 50px; transform: scale(3.5); transform-origin: left center; display: block; }

.nav-right { display: flex; align-items: center; gap: 20px; }

/* DİL DEĞİŞTİRME BUTONU */
.lang-switch {
    display: flex; align-items: center; gap: 5px; color: white; cursor: pointer;
    font-weight: bold; padding: 8px 12px; border-radius: 20px; transition: background 0.3s ease;
}
.lang-switch:hover { background-color: rgba(255, 255, 255, 0.2); }

/* MOBİL HAMBURGER MENÜ ANİMASYONU */
.hamburger-menu {
    display: none; width: 24px; height: 24px; position: relative; cursor: pointer;
    transition: transform 0.4s ease; z-index: 1001; 
}
.hamburger-menu span {
    position: absolute; width: 4px; height: 24px; background: white; border-radius: 2px;
    top: 0; transition: all 0.4s ease;
}
.hamburger-menu span:nth-child(1) { left: 2px; }
.hamburger-menu span:nth-child(2) { left: 10px; }
.hamburger-menu span:nth-child(3) { left: 18px; }

.hamburger-menu.active { transform: rotate(-90deg); }

/* MENÜ LİNKLERİ */
.nav-links { list-style: none; display: flex; gap: 25px; align-items: center; }
.nav-links li { position: relative; padding: 25px 0; }
.nav-links li > a { text-decoration: none; color: #ffffff; font-weight: 600; font-size: 16px; transition: opacity 0.3s ease; }
.nav-links li > a:hover, .nav-links li > a.active { opacity: 0.8; }

.dropdown {
    position: absolute; top: 75px; left: 0; background-color: #ffffff; min-width: 200px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1); border-radius: 0 0 8px 8px; visibility: hidden;
    opacity: 0; display: flex; flex-direction: column; overflow: hidden; 
}
.nav-links li:hover .dropdown { visibility: visible; opacity: 1; }
.dropdown a { color: #333; padding: 12px 20px; text-decoration: none; font-size: 14px; font-weight: 500; border-bottom: 1px solid #f3f4f6; transform: translateY(-20px); opacity: 0; transition: all 0.3s ease; }
.dropdown a:last-child { border-bottom: none; }
.dropdown a:hover { background-color: #f9fafb; color: #ff2d2e; }

.nav-links li:hover .dropdown a { transform: translateY(0); opacity: 1; }
.nav-links li:hover .dropdown a:nth-child(1) { transition-delay: 0.05s; }
.nav-links li:hover .dropdown a:nth-child(2) { transition-delay: 0.1s; }
.nav-links li:hover .dropdown a:nth-child(3) { transition-delay: 0.15s; }
.nav-links li:hover .dropdown a:nth-child(4) { transition-delay: 0.2s; }

/* Arama Çubuğu */
.search-container { display: flex; align-items: center; background-color: #ffffff; border-radius: 20px; padding: 6px 15px; border: 2px solid #0056b3; transition: all 0.3s ease; }
.search-input { border: none; background: transparent; outline: none; padding: 5px 10px; font-size: 14px; width: 140px; color: #333; transition: width 0.3s ease; }
.search-input:focus { width: 200px; }
.drone-icon { width: 24px; height: 24px; color: #0056b3; transition: color 0.3s ease; cursor: pointer; }
@keyframes spinPropeller { 0% { transform: rotate(0deg); } 100% { transform: rotate(1080deg); } }
.drone-icon.spinning { animation: spinPropeller 1.5s cubic-bezier(0.4, 0, 0.2, 1); }

/* --- ANA SAYFA --- */
.header-text { text-align: center; padding: 60px 20px 40px 20px; color: #111; }
.header-text h1 { font-size: 48px; font-weight: 700; margin-bottom: 15px; letter-spacing: -1px; }
.header-text p { font-size: 20px; color: #444; max-width: 600px; margin: 0 auto; line-height: 1.5; }

.slider-container { width: 80%; max-width: 1200px; height: 600px; margin: 0 auto 80px auto; border-radius: 16px; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.1); position: relative; }
.slider-track { display: flex; width: 100%; height: 100%; transition: transform 0.5s ease-in-out; }
.slide { min-width: 100%; height: 100%; cursor: pointer; }
.slide img { width: 100%; height: 100%; object-fit: cover; background-color: transparent; }

.slider-btn { position: absolute; top: 50%; transform: translateY(-50%); background-color: transparent; border: 1px solid transparent; width: 40px; height: 80px; border-radius: 40px; display: flex; justify-content: center; align-items: center; cursor: pointer; transition: all 0.3s ease; z-index: 10; }
.slider-btn:hover { background-color: rgba(255, 255, 255, 0.35); backdrop-filter: blur(4px); border-color: rgba(255, 255, 255, 0.3); }
.btn-left { left: 15px; } .btn-right { right: 15px; }

/* DİĞER SAYFALAR */
.brands-wrapper, .feedback-container { flex: 1; padding: 60px 20px; max-width: 800px; margin: 0 auto; width: 100%; }
.brands-wrapper h2 { text-align: center; color: #111; font-size: 32px; margin-bottom: 40px; }
.brand-list { display: flex; flex-direction: column; gap: 20px; }
.brand-card { display: flex; align-items: center; background: white; padding: 20px 30px; border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); border-left: 5px solid #ff2d2e; cursor: pointer; transition: transform 0.3s ease; }
.brand-card:hover { transform: translateX(10px); }
.brand-logo-img { width: 60px; height: 60px; object-fit: contain; margin-right: 25px; }

.feedback-form { background: white; padding: 40px; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.05); width: 100%; border-top: 5px solid #ff2d2e; }
.feedback-form h2 { color: #111; margin-bottom: 25px; text-align: center; }
.form-group { margin-bottom: 20px; display: flex; flex-direction: column; }
.form-group label { margin-bottom: 8px; font-weight: 600; color: #444; font-size: 14px; }
.form-group input, .form-group textarea { padding: 12px 15px; border: 1px solid #d1d5db; border-radius: 8px; font-size: 15px; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: #0056b3; }
textarea#message { resize: none; overflow-y: hidden; min-height: 50px; max-height: 150px; transition: border-color 0.3s; }
.file-upload-group { margin-bottom: 20px; }
.file-upload-group input[type="file"] { display: block; width: 100%; padding: 10px; border: 1px dashed #d1d5db; border-radius: 8px; background-color: #f9fafb; cursor: pointer; font-size: 14px; margin-bottom: 5px; }
.file-limit-text { font-size: 12px; color: #6b7280; }
.submit-btn { width: 100%; padding: 14px; background-color: #ff2d2e; color: white; border: none; border-radius: 8px; font-size: 16px; font-weight: bold; cursor: pointer; transition: background-color 0.3s ease; }
.submit-btn:hover { background-color: #cc2425; }

footer { background-color: #ffffff; color: #6b7280; text-align: center; padding: 15px; font-size: 14px; border-top: 1px solid #e5e7eb; }

/* --- DRONE 3D / 2D VIEW TOGGLE (modular; remove with wrapper markup revert) --- */
.drone-view-toggle {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 20;
    display: inline-flex;
    align-items: center;
    padding: 3px;
    border-radius: 999px;
    background: rgba(15, 18, 28, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.drone-view-toggle__btn {
    position: relative;
    z-index: 1;
    margin: 0;
    padding: 8px 18px;
    border: none;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: rgba(255, 255, 255, 0.65);
    background: transparent;
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.drone-view-toggle__btn:hover {
    color: rgba(255, 255, 255, 0.95);
}

.drone-view-toggle__btn.is-active {
    color: #0b1220;
    background: linear-gradient(145deg, #e0f7ff, #7dd3fc);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.5) inset, 0 4px 14px rgba(56, 189, 248, 0.45);
}

.drone-view-toggle__btn:focus-visible {
    outline: 2px solid #38bdf8;
    outline-offset: 2px;
}

.drone-view-stack {
    position: relative;
    width: 100%;
}

.drone-schematic-view {
    width: 100%;
}

.drone-schematic-view[hidden] {
    display: none !important;
}

.drone-3d-wrapper.is-schematic-mode .drone-3d-viewer {
    display: none !important;
}

.drone-schematic-inner {
    position: relative;
    width: 100%;
    min-height: min(70vh, 640px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(180deg, #14151a 0%, #0d0e12 100%);
}

.drone-schematic-img {
    display: block;
    width: 100%;
    height: 100%;
    max-height: min(70vh, 640px);
    object-fit: contain;
    object-position: center;
    user-select: none;
    pointer-events: none;
}

/* --- MODEL-VIEWER HOTSPOTS (+ 2D schematic same look) --- */
model-viewer .model-hotspot,
.drone-schematic-inner .schematic-hotspot {
    display: block;
    width: 16px;
    height: 16px;
    padding: 0;
    border: 2px solid rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #5ee9ff, #0099cc 55%, #006699);
    box-shadow:
        0 0 10px rgba(0, 200, 255, 0.85),
        0 0 0 0 rgba(0, 212, 255, 0.45);
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    animation: model-hotspot-pulse 2.2s ease-out infinite;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.drone-schematic-inner .schematic-hotspot {
    position: absolute;
    transform: translate(-50%, -50%);
}

model-viewer .model-hotspot:hover {
    transform: scale(1.12);
    filter: brightness(1.1);
    box-shadow:
        0 0 14px rgba(0, 230, 255, 1),
        0 0 0 0 rgba(0, 212, 255, 0.5);
}

.drone-schematic-inner .schematic-hotspot:hover {
    transform: translate(-50%, -50%) scale(1.12);
    filter: brightness(1.1);
    box-shadow:
        0 0 14px rgba(0, 230, 255, 1),
        0 0 0 0 rgba(0, 212, 255, 0.5);
}

model-viewer .model-hotspot:focus-visible,
.drone-schematic-inner .schematic-hotspot:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 3px;
}

@keyframes model-hotspot-pulse {
    0%, 100% {
        box-shadow:
            0 0 10px rgba(0, 200, 255, 0.85),
            0 0 0 0 rgba(0, 212, 255, 0.5);
    }
    45% {
        box-shadow:
            0 0 18px rgba(0, 230, 255, 0.75),
            0 0 0 16px rgba(0, 212, 255, 0);
    }
}

/* --- PART INFO OVERLAY (3D hotspot details) --- */
.part-info-overlay {
    position: fixed;
    inset: 0;
    z-index: 2500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.part-info-overlay.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.part-info-overlay__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.52);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.part-info-card {
    position: relative;
    width: 100%;
    max-width: 420px;
    max-height: min(85vh, 560px);
    overflow: auto;
    background: linear-gradient(155deg, rgba(30, 41, 59, 0.97) 0%, rgba(15, 23, 42, 0.98) 100%);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    box-shadow:
        0 24px 48px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(255, 255, 255, 0.06) inset;
    transform: translateY(12px) scale(0.98);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease;
}

.part-info-overlay.is-visible .part-info-card {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.part-info-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 22px 16px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.part-info-card__title {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 650;
    letter-spacing: -0.02em;
    color: #f8fafc;
    line-height: 1.3;
}

.part-info-card__close {
    flex-shrink: 0;
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #0f172a;
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    border: none;
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.part-info-card__close:hover {
    background: #ffffff;
    box-shadow: 0 4px 14px rgba(255, 45, 46, 0.25);
}

.part-info-card__close:focus-visible {
    outline: 2px solid #ff2d2e;
    outline-offset: 2px;
}

.part-info-card__body {
    padding: 18px 22px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.part-info-field {
    display: grid;
    gap: 4px;
}

.part-info-field--block {
    margin-top: 4px;
}

.part-info-field__label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #94a3b8;
}

.part-info-field__value {
    margin: 0;
    font-size: 0.98rem;
    color: #e2e8f0;
    line-height: 1.45;
}

.part-info-field__value--multiline {
    font-size: 0.92rem;
    color: #cbd5e1;
    line-height: 1.55;
}

/* --- DRONE 3D SECTION LAYOUT --- */
.drone-3d-section {
    padding: 50px 0;
    text-align: center;
    background-color: #f9f9f9;
}

.drone-3d-container {
    width: min(100%, 1100px);
    margin: 0 auto;
    padding: 0 16px;
}

.drone-3d-title {
    margin-bottom: 20px;
}

.drone-3d-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
    max-width: 1000px;
    border: 1px solid #ddd;
    border-radius: 10px;
    overflow: hidden;
    background-color: #1a1a1e;
}

.drone-3d-viewer {
    width: 100%;
    height: min(70vh, 640px);
    outline: none;
}

@media (max-width: 900px) {
    .part-info-card__header {
        padding: 18px 18px 14px;
    }
    .part-info-card__body {
        padding: 14px 18px 20px;
    }
}

/* === RESPONSIVE (DİKEY ENTEGRASYON) EKRAN KURALLARI === */
@media (max-width: 900px) {
    .navbar { padding: 0 20px; }
    .logo img { transform: scale(2.5); }
    .hamburger-menu { display: block; } 
    
    .nav-links { 
        display: none; position: absolute; top: 75px; left: 0; width: 100%; 
        background-color: #ff2d2e; flex-direction: column; padding: 20px 0; gap: 10px; 
    }
    .nav-links.mobile-active { display: flex; } 
    .nav-links li { padding: 10px 0; width: 100%; text-align: center; }
    
    .nav-links .dropdown { position: relative; top: 0; box-shadow: none; visibility: visible; opacity: 1; background: rgba(0,0,0,0.1); border-radius: 0; display: none; }
    .nav-links li:hover .dropdown { display: flex; }
    .nav-links .dropdown a { color: white; border-bottom: 1px solid rgba(255,255,255,0.2); transform: none; opacity: 1; }
    .nav-links .dropdown a:hover { background: rgba(0,0,0,0.2); }
    
    .search-container { display: none; } 
    .lang-switch { display: none; }
    
    .slider-container { width: 95%; height: 350px; } 
    .header-text h1 { font-size: 32px; }
    .header-text p { font-size: 16px; }
}

   /* Arama Sonuçları Paneli */
.search-results-dropdown {
    position: absolute;
    top: 50px;
    left: 0;
    width: 100%;
    background: rgba(15, 15, 15, 0.98);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 123, 255, 0.3);
    border-radius: 8px;
    z-index: 1000;
    display: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
    overflow: hidden;
}

.search-result-item {
    padding: 12px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    cursor: pointer;
    transition: background 0.2s;
}

.search-result-item:hover {
    background: rgba(0, 123, 255, 0.15);
}

.result-name { color: #ffffff; font-weight: 500; margin-right: 8px; }
.result-sub { color: #888; font-size: 11px; font-style: italic; }
.result-badge { 
    background: #007BFF; 
    color: #fff; 
    font-size: 10px; 
    padding: 2px 8px; 
    border-radius: 4px; 
    text-transform: uppercase;
}



/* ==========================================
   AERO CHAT BOT - MODERN & STEALTH UI
========================================== */

/* Genel Konteyner (Artık konumu o belirlemiyor, özgür bıraktık) */
#aero-chat-container {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Süzülen Aktivasyon Butonu (Dron İkonu) */
/* Süzülen Aktivasyon Butonu (Koyu Mavi) */
#aero-chat-toggle-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    /* BURASI DEĞİŞTİ: Daha koyu ve ciddi bir mavi (Navy/Stealth) */
    background: linear-gradient(135deg, #004085 0%, #002244 100%); 
    color: white;
    border: none;
    border-radius: 50%;
    width: 65px;
    height: 65px;
    font-size: 28px;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0, 34, 68, 0.5); /* Gölge de koyulaştı */
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

#aero-chat-toggle-btn:hover {
    transform: translateY(-5px) scale(1.05);
    /* Hover durumunda hafif parlayan koyu mavi */
    box-shadow: 0 12px 25px rgba(0, 64, 133, 0.7); 
}
#aero-chat-toggle-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 12px 25px rgba(0, 123, 255, 0.6);
}

/* Sohbet Penceresi (Glassmorphism Etkisi) */
#aero-chat-window {
    position: fixed;      /* Doğrudan ekrana sabitlendi */
    bottom: 95px;         /* Butonun tam üstünde açılacak şekilde hizalandı */
    right: 20px;          /* Butonla aynı dikey hizada */
    z-index: 9999;
    width: 380px;
    height: 500px;
    background-color: rgba(20, 20, 20, 0.85); /* Login ekranına uygun koyu ton */
    backdrop-filter: blur(12px); /* Arkadaki dronu hafif bulanık gösterir */
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6), 0 0 15px rgba(0, 123, 255, 0.1);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#aero-chat-window.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
}

/* Üst Başlık Barı */
.aero-chat-header {
    background-color: rgba(10, 10, 10, 0.9);
    color: #ffffff;
    padding: 18px 20px;
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 0.5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.aero-chat-header span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.aero-chat-header span::before {
    content: '';
    display: inline-block;
    width: 10px;
    height: 10px;
    background-color: #007BFF;
    border-radius: 50%;
    box-shadow: 0 0 8px #007BFF;
}

#close-chat-btn {
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    font-size: 18px;
    transition: color 0.2s;
}

#close-chat-btn:hover {
    color: #ff4d4d;
}

/* Mesajlaşma Alanı */
#aero-chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Scrollbar Özelleştirmesi */
#aero-chat-messages::-webkit-scrollbar {
    width: 6px;
}
#aero-chat-messages::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
}

.chat-message {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14.5px;
    line-height: 1.5;
    word-wrap: break-word;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

/* Kullanıcı Mesajı (Login Butonu Mavisi) */
.user-msg {
    background-color: #007BFF;
    color: #ffffff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

/* Bot Mesajı (Koyu Gri) */
.aero-msg {
    background-color: #2a2a2a;
    color: #e0e0e0;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Alt Girdi (Input) Alanı */
.aero-chat-input-area {
    display: flex;
    padding: 15px;
    background-color: rgba(10, 10, 10, 0.9);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    gap: 10px;
}

/* Login Ekranındaki Gibi Temiz ve Açık Renk Input */
#aero-chat-input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 8px;
    background-color: #f0f4f8; 
    color: #1a1a1a;
    font-size: 14px;
    outline: none;
    transition: box-shadow 0.2s;
}

#aero-chat-input:focus {
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.5);
}

/* Gönder Butonu */
#send-chat-btn {
    background-color: #007BFF;
    color: #ffffff;
    border: none;
    padding: 0 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: background-color 0.2s, transform 0.1s;
}

#send-chat-btn:hover {
    background-color: #0056b3;
}

#send-chat-btn:active {
    transform: scale(0.95);
}