:root {
    --bg-main: #343541; --bg-sidebar: #202123; --bg-input: #40414f;
    --text-main: #ECECF1; --text-muted: #8E8EA0; --accent: #10A37F;
    --border: rgba(255,255,255,0.1);
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', system-ui, sans-serif; }
body { background-color: var(--bg-main); color: var(--text-main); height: 100vh; overflow: hidden; }
.view-container { display: none; height: 100vh; width: 100vw; }
.view-container.active { display: flex; }

/* Auth */
#auth-view { justify-content: center; align-items: center; background: #202123; }
.auth-box { width: 100%; max-width: 400px; padding: 40px; background: var(--bg-main); border-radius: 12px; }
.auth-logo { text-align: center; margin-bottom: 30px; font-size: 24px; color: var(--accent); }
.auth-form { display: flex; flex-direction: column; gap: 20px; }
.input-group { display: flex; flex-direction: column; gap: 8px; }
.input-group input, select { padding: 12px; background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; color: #fff; outline: none; }
.btn-primary { background: var(--accent); color: white; border: none; padding: 12px; border-radius: 6px; cursor: pointer; font-weight: bold; }
.btn-secondary { background: transparent; border: 1px solid var(--border); color: #fff; padding: 8px 16px; border-radius: 6px; cursor: pointer; }

/* Layout */
.sidebar { width: 280px; background: var(--bg-sidebar); display: flex; flex-direction: column; padding: 10px; }
.sidebar-header { margin-bottom: 20px; }
.btn-new-chat { width: 100%; background: transparent; border: 1px solid var(--border); color: #fff; padding: 12px; border-radius: 6px; cursor: pointer; }
.sidebar-scroll { flex: 1; overflow-y: auto; }
.sidebar-footer { border-top: 1px solid var(--border); padding-top: 10px; }
.user-menu { display: flex; align-items: center; gap: 10px; padding: 10px; }
.avatar { width: 32px; height: 32px; background: #5436DA; border-radius: 4px; display: flex; align-items: center; justify-content: center; font-weight: bold; }

/* Chat */
.chat-area { flex: 1; display: flex; flex-direction: column; position: relative; }
.chat-header { padding: 15px 20px; display: flex; justify-content: space-between; border-bottom: 1px solid var(--border); }
.chat-messages { flex: 1; overflow-y: auto; padding-bottom: 150px; }
.welcome-screen { height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 10px;}
.welcome-logo { font-size: 60px; color: var(--text-muted); }

/* Messages */
.message { display: flex; gap: 20px; padding: 30px 15%; border-bottom: 1px solid rgba(0,0,0,0.1); }
.message.ai-message { background-color: #444654; }
.ai-avatar { background: var(--accent); }
.msg-content { flex: 1; line-height: 1.7; font-size: 15px; overflow-x: hidden; }
.msg-content pre { background: #000; padding: 15px; border-radius: 8px; margin: 15px 0; overflow-x: auto; }
.typing-indicator { display: inline-block; width: 6px; height: 16px; background: #fff; animation: blink 1s infinite; margin-left: 2px; }
@keyframes blink { 50% { opacity: 0; } }

/* Input */
.input-container { position: absolute; bottom: 0; width: 100%; padding: 30px 15% 20px; background: linear-gradient(180deg, rgba(52,53,65,0), var(--bg-main) 30%); }
.input-wrapper { background: var(--bg-input); border: 1px solid var(--border); border-radius: 12px; padding: 10px; }
.input-tools { display: flex; gap: 5px; margin-bottom: 10px; }
.tool-btn { background: transparent; border: none; color: #fff; font-size: 20px; cursor: pointer; }
.hidden-input { display: none; width: 100%; background: transparent; border: none; border-bottom: 1px solid var(--border); color: #fff; padding: 5px; outline: none; }
.hidden-input.active { display: block; margin-left: 10px; }
.textarea-wrapper { display: flex; gap: 10px; align-items: flex-end; }
#prompt-input { flex: 1; background: transparent; border: none; color: #fff; resize: none; max-height: 200px; outline: none; font-size: 15px; }
.send-btn { background: var(--accent); border: none; width: 35px; height: 35px; border-radius: 8px; color: #fff; cursor: pointer; }

/* ADMIN PANEL */
.admin-table { width: 100%; border-collapse: collapse; margin-top: 20px; background: var(--bg-sidebar); border-radius: 8px; overflow: hidden; }
.admin-table th, .admin-table td { padding: 15px; text-align: left; border-bottom: 1px solid var(--border); }
.admin-table th { background: var(--bg-input); color: var(--accent); }
.admin-table input { width: 60px; padding: 5px; background: var(--bg-main); border: 1px solid var(--border); color: #fff; border-radius: 4px; }
.admin-table select { background: var(--bg-main); padding: 5px; border: 1px solid var(--border); color: #fff; border-radius: 4px; }
.btn-small { background: var(--accent); color: #fff; border: none; padding: 5px 10px; border-radius: 4px; cursor: pointer; }
.btn-danger { background: #e74c3c; color: #fff; border: none; padding: 5px 10px; border-radius: 4px; cursor: pointer; margin-left: 5px;}

/* ================= MODAL SETARI ================= */
.modal-overlay { 
    display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); 
    backdrop-filter: blur(4px); z-index: 1000; justify-content: center; align-items: center; 
}
.modal-overlay.active { display: flex; }
.modal-content { 
    background: var(--bg-sidebar); width: 100%; max-width: 500px; 
    border-radius: 12px; border: 1px solid var(--border); overflow: hidden; 
}
.modal-header { 
    padding: 20px; border-bottom: 1px solid var(--border); 
    display: flex; justify-content: space-between; align-items: center; 
}
.close-btn { background: transparent; border: none; color: #fff; font-size: 20px; cursor: pointer; }
.modal-body { padding: 20px; display: flex; flex-direction: column; gap: 20px; }
.settings-group { display: flex; flex-direction: column; gap: 8px; }
.settings-group input { 
    padding: 10px; background: var(--bg-input); border: 1px solid var(--border); 
    border-radius: 6px; color: #fff; outline: none; 
}
.settings-group small { color: var(--text-muted); font-size: 12px; }
.modal-footer { padding: 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; }