/* PENASARI - Estilos
   =================== */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --bg-dark: #0f0f1a;
    --bg-card: #1a1a2e;
    --bg-input: #252542;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border: #2d2d4a;
    --error: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Screens */
.screen {
    display: none;
    flex-direction: column;
    min-height: 100vh;
}

.screen.active {
    display: flex;
}

/* Login Screen */
#login-screen {
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 360px;
    padding: 40px 30px;
    background: var(--bg-card);
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.logo {
    text-align: center;
    margin-bottom: 40px;
}

.logo-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.logo h1 {
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.logo p {
    color: var(--text-secondary);
    font-size: 14px;
}

.input-group {
    margin-bottom: 20px;
}

.input-group input {
    width: 100%;
    padding: 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.btn-primary {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

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

.error-message {
    color: var(--error);
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    min-height: 20px;
}

/* Chat Screen */
#chat-screen {
    height: 100vh;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-info .avatar {
    font-size: 40px;
}

.user-info h2 {
    font-size: 18px;
    font-weight: 600;
}

.user-info p {
    font-size: 12px;
    color: var(--text-secondary);
}

.btn-icon {
    width: 44px;
    height: 44px;
    background: var(--bg-input);
    border: none;
    border-radius: 12px;
    font-size: 20px;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-icon:hover {
    background: var(--border);
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    display: flex;
    gap: 12px;
    max-width: 85%;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.penasari-message {
    align-self: flex-start;
}

.message .avatar {
    font-size: 32px;
    flex-shrink: 0;
}

.message-content {
    background: var(--bg-card);
    padding: 14px 18px;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.user-message .message-content {
    background: var(--primary);
    border-bottom-right-radius: 6px;
}

.penasari-message .message-content {
    border-bottom-left-radius: 6px;
}

.message-content p {
    font-size: 15px;
    line-height: 1.5;
    white-space: pre-wrap;
}

/* Typing Indicator */
.typing-indicator {
    display: none;
    padding: 0 20px 16px;
    gap: 12px;
}

.typing-indicator.active {
    display: flex;
}

.typing-indicator .avatar {
    font-size: 32px;
}

.typing-indicator .dots {
    background: var(--bg-card);
    padding: 14px 18px;
    border-radius: 20px;
    display: flex;
    gap: 6px;
    align-items: center;
}

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

.typing-indicator .dots span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator .dots span:nth-child(2) { animation-delay: -0.16s; }

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

/* Chat Input */
.chat-input {
    display: flex;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
}

.chat-input input {
    flex: 1;
    padding: 14px 18px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 24px;
    color: var(--text-primary);
    font-size: 16px;
}

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

.chat-input input::placeholder {
    color: var(--text-muted);
}

.btn-send {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 22px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-send:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

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

/* Scrollbar */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
    }
    
    .message {
        max-width: 92%;
    }
    
    .chat-header {
        padding: 12px 16px;
    }
    
    .chat-messages {
        padding: 16px;
    }
    
    .chat-input {
        padding: 12px 16px;
    }
}