:root {
    /* Warm, inviting sunset theme - the original vision */
    --primary: #ff6b6b;              /* Warm coral red */
    --primary-dark: #ee5253;         /* Deeper coral */
    --primary-light: #ff8787;        /* Light coral */
    --secondary: #50c9ce;            /* Teal accent */
    --accent: #f093fb;               /* Warm pink accent */
    --accent-secondary: #f5576c;     /* Deep rose */

    /* Background - dark but warm */
    --bg-primary: #2d3436;           /* Dark charcoal (warm undertone) */
    --bg-secondary: #34393b;         /* Slightly lighter charcoal */
    --bg-tertiary: #3d4345;          /* Medium charcoal */
    --bg-card: #414549;              /* Card background */

    /* Text - warm whites and grays */
    --text-primary: #f8f9fa;         /* Warm white */
    --text-secondary: #e9ecef;       /* Off-white */
    --text-muted: #adb5bd;           /* Warm gray */

    /* UI Elements */
    --border: #495057;               /* Warm gray border */
    --success: #51cf66;              /* Warm green */
    --error: #ff6b6b;                /* Matches primary */
    --warning: #ffd43b;              /* Warm yellow */

    /* Gradients - signature sunset */
    --gradient-sunset: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-warm: linear-gradient(135deg, #ff6b6b 0%, #f093fb 100%);
    --gradient-glow: linear-gradient(135deg, rgba(240, 147, 251, 0.2) 0%, rgba(245, 87, 108, 0.2) 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.5rem;
    background: var(--gradient-sunset);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    transition: transform 0.3s, border-color 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-muted);
}

/* Status Section */
.status {
    padding: 4rem 0;
}

.status-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.status-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.status-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-value {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

/* Chat Page Styles */
.chat-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    height: calc(100vh - 73px);
}

.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 1.5rem;
    overflow-y: auto;
}

.sidebar h2 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.companion-list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: flex-start;
}

.companion-item {
    padding: 0;
    background: var(--bg-tertiary);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    text-align: center;
    overflow: hidden;
    width: 180px;
}

.companion-item img {
    width: 180px;
    height: 180px;
    border-radius: 0;
    object-fit: cover;
}

.companion-item .companion-name {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.1rem 0.25rem;
    width: 100%;
    background: transparent;
    line-height: 1.2;
}

.companion-item:hover {
    border-color: var(--primary);
}

.companion-item.active {
    background: var(--primary);
}


.chat-main {
    display: flex;
    flex-direction: column;
}

.chat-header {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
}

.chat-header .chat-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
}

.chat-header h2 {
    margin: 0;
    font-size: 1.25rem;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.message {
    max-width: 80%;
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
}

.message.user {
    align-self: flex-end;
    background: var(--primary);
    color: white;
}

.message.assistant {
    align-self: flex-start;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

/* Message content and prose styling */
.message-content,
.prose-chat {
    color: var(--text-primary);
    line-height: 1.4;
}

.message-meta {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Inline Action Buttons (Emma's interactive buttons) */
.message-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.inline-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.inline-action-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-1px);
}

.inline-action-btn:active {
    transform: translateY(0);
}

/* Expandable button (has dropdown icon) */
.inline-action-btn.expandable-btn {
    background: transparent;
    border-style: dashed;
}

.inline-action-btn.expandable-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.expand-icon {
    font-size: 0.75rem;
    transition: transform 0.2s;
}

.inline-action-btn[aria-expanded="true"] .expand-icon {
    transform: rotate(180deg);
}

/* Custom Input Panel (for expandable "Other" option) */
.custom-input-panel {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
}

.custom-input-header {
    margin-bottom: 0.5rem;
}

.custom-input-header label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.custom-input-body {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}

.custom-textarea {
    flex: 1;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    resize: vertical;
    min-height: 60px;
}

.custom-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.custom-send-btn {
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background 0.2s;
}

.custom-send-btn:hover {
    background: var(--primary-dark);
}

/* Typing indicator */
.typing-indicator .typing-dots {
    display: flex;
    gap: 0.25rem;
}

.typing-indicator .typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out both;
}

.typing-indicator .typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-indicator .typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typingBounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

/* Welcome message */
.welcome-message {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

.chat-input-container {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.chat-input-form {
    display: flex;
    gap: 1rem;
}

.chat-input {
    flex: 1;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
}

.chat-input:focus {
    outline: none;
    border-color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .chat-container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

    .footer .container {
        flex-direction: column;
        gap: 1rem;
    }
}