:root {
    --primary-color: #0A2647;
    --secondary-color: #FF7A00;
    --bg-color: #F5F7FA;
    --text-color: #1A1A1A;
    --white: #FFFFFF;
    --gray: #6c757d;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
}

.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow);
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color) !important;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
}

.logo-shadow {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.logo-shadow:hover {
    transform: scale(1.05);
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    padding: 10px 25px;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: #0d3b6b;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--secondary-color);
    border: none;
    padding: 10px 25px;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: #e66e00;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    color: var(--white);
    padding: 120px 0 150px 0;
    text-align: center;
    overflow: hidden;
}

.search-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 35px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    margin-top: -80px;
    position: relative;
    z-index: 10;
    border: 1px solid rgba(255,255,255,0.2);
}

.search-select {
    border-radius: 8px;
    border: 1px solid #dee2e6;
    padding: 12px;
}

/* Listing Cards */
.property-card {
    border: none;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-bottom: 20px;
}

.property-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

.price-tag {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.25rem;
}

/* AI Assistant Bubble */
#winner-chat-bubble {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: auto;
    padding: 15px 25px;
    background: linear-gradient(135deg, var(--secondary-color), #ff9a3d);
    border-radius: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 20px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 122, 0, 0.4);
    z-index: 1000;
    transition: var(--transition);
}

#winner-chat-bubble:hover {
    transform: scale(1.1);
}

#chat-window {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 350px;
    height: 500px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    z-index: 1000;
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.chat-header {
    background: var(--primary-color);
    color: white;
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-body {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    background: #f9f9f9;
}

.chat-footer {
    padding: 15px;
    border-top: 1px solid #eee;
    display: flex;
    gap: 10px;
}

.message {
    margin-bottom: 15px;
    max-width: 80%;
}

.message.winner {
    background: #e9ecef;
    padding: 10px;
    border-radius: 15px 15px 15px 0;
    align-self: flex-start;
}

.message.user {
    background: var(--primary-color);
    color: white;
    padding: 10px;
    border-radius: 15px 15px 0 15px;
    align-self: flex-end;
    margin-left: auto;
}