/* AskManual - Industrial Tech Aesthetic */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,700;1,9..40,400&family=JetBrains+Mono:wght@400;600&family=Outfit:wght@300;500;700;900&display=swap');

:root {
    --orange: #ff6b2b;
    --orange-glow: #ff8f5e;
    --orange-deep: #e0501a;
    --charcoal: #1a1a2e;
    --charcoal-light: #242442;
    --surface: #2a2a4a;
    --surface-hover: #33335a;
    --glass: rgba(255,255,255,0.06);
    --glass-border: rgba(255,255,255,0.1);
    --text-bright: #f0f0f8;
    --text-mid: #a0a0c0;
    --text-dim: #6a6a8a;
    --danger: #ff4757;
    --success: #2ed573;
    --radius: 14px;
    --radius-sm: 8px;
}

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

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--charcoal);
    color: var(--text-bright);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* === ANIMATED BACKGROUND === */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(255,107,43,0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 80% at 85% 90%, rgba(255,107,43,0.05) 0%, transparent 50%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 60px,
            rgba(255,255,255,0.015) 60px,
            rgba(255,255,255,0.015) 61px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 60px,
            rgba(255,255,255,0.015) 60px,
            rgba(255,255,255,0.015) 61px
        );
    pointer-events: none;
    z-index: 0;
}

/* === CONTAINER === */
.container {
    position: relative;
    z-index: 1;
    max-width: 820px;
    margin: 0 auto;
    padding: 2.5rem 1.25rem 1rem;
}

/* === HEADER === */
header {
    text-align: center;
    margin-bottom: 2.5rem;
    animation: fadeSlideUp 0.6s ease-out;
}

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.5rem;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--orange), var(--orange-deep));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(255,107,43,0.35);
    animation: logoGlow 3s ease-in-out infinite alternate;
}

@keyframes logoGlow {
    from { box-shadow: 0 4px 20px rgba(255,107,43,0.35); }
    to { box-shadow: 0 4px 30px rgba(255,107,43,0.55); }
}

.logo-icon svg { width: 26px; height: 26px; }

header h1 {
    font-family: 'Outfit', sans-serif;
    font-weight: 900;
    font-size: 2.6rem;
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, var(--text-bright) 40%, var(--orange-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-mid);
    font-size: 1rem;
    font-weight: 400;
    margin-top: 0.35rem;
}

.tagline {
    display: inline-block;
    margin-top: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--orange);
    border: 1px solid rgba(255,107,43,0.3);
    padding: 0.3rem 1rem;
    border-radius: 100px;
    background: rgba(255,107,43,0.08);
}

/* === CARDS === */
.card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
    animation: cardIn 0.5s ease-out both;
}

.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.2s; }
.card:nth-child(4) { animation-delay: 0.3s; }

@keyframes cardIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--orange), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}
.card:hover::before { opacity: 1; }

.card h2 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card h2 .icon {
    width: 28px;
    height: 28px;
    background: rgba(255,107,43,0.15);
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card h2 .icon svg { width: 16px; height: 16px; stroke: var(--orange); }

/* === FORMS === */
.form-row { margin-bottom: 1rem; }

.form-row label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.3rem;
    font-size: 0.85rem;
    color: var(--text-mid);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: 'JetBrains Mono', monospace;
}

.input {
    width: 100%;
    padding: 0.7rem 1rem;
    background: var(--surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-bright);
    font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif;
    transition: all 0.25s;
}

.input::placeholder { color: var(--text-dim); }
.input:focus {
    outline: none;
    border-color: var(--orange);
    box-shadow: 0 0 0 3px rgba(255,107,43,0.15);
}

.file-input {
    padding: 0.5rem;
    cursor: pointer;
}

.file-input::file-selector-button {
    background: var(--orange);
    color: #fff;
    border: none;
    padding: 0.4rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    margin-right: 0.75rem;
    transition: background 0.2s;
}

.file-input::file-selector-button:hover {
    background: var(--orange-deep);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.65rem 1.4rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--orange), var(--orange-deep));
    color: #fff;
    box-shadow: 0 2px 12px rgba(255,107,43,0.3);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(255,107,43,0.45);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
    background: var(--surface);
    color: var(--text-bright);
    border: 1px solid var(--glass-border);
}
.btn-secondary:hover {
    background: var(--surface-hover);
    border-color: var(--orange);
}

.btn-small {
    padding: 0.35rem 0.8rem;
    font-size: 0.8rem;
    border-radius: 6px;
}

.btn-danger {
    background: rgba(255,71,87,0.15);
    color: var(--danger);
    border: 1px solid rgba(255,71,87,0.25);
}
.btn-danger:hover {
    background: rgba(255,71,87,0.25);
}

.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none !important; }

/* === MANUAL LIST === */
.manual-list { display: flex; flex-direction: column; gap: 0.6rem; }

.manual-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 1.1rem;
    background: var(--surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    transition: all 0.2s;
}

.manual-item:hover {
    border-color: rgba(255,107,43,0.4);
    background: var(--surface-hover);
    transform: translateX(4px);
}

.manual-info { display: flex; flex-direction: column; gap: 0.1rem; }

.manual-model {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--orange);
}

.manual-name {
    font-size: 0.88rem;
    color: var(--text-mid);
}

.manual-meta {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
}

.manual-actions { display: flex; gap: 0.4rem; align-items: center; }

/* === IDENTIFY SECTION === */
.identify-area {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.identify-result {
    width: 100%;
    margin-top: 0.75rem;
    padding: 1rem;
    background: var(--surface);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--orange);
}

.error { color: var(--danger); }

/* === CHAT LAYOUT === */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 960px;
    padding: 0;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background: rgba(26,26,46,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    flex-shrink: 0;
    z-index: 10;
}

.chat-header h1 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    text-align: left;
    margin: 0;
    background: none;
    -webkit-text-fill-color: var(--text-bright);
}

.chat-header .subtitle {
    font-size: 0.75rem;
    margin: 0;
    color: var(--text-dim);
}

.back-link {
    text-decoration: none;
    color: var(--orange);
    font-size: 1.3rem;
    font-weight: 700;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    transition: all 0.2s;
}

.back-link:hover {
    background: rgba(255,107,43,0.15);
    border-color: var(--orange);
}

.header-info { flex: 1; min-width: 0; }

.manual-select {
    padding: 0.4rem 0.6rem;
    background: var(--surface);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-bright);
    font-family: 'JetBrains Mono', monospace;
    max-width: 220px;
}

.manual-select option {
    background: var(--charcoal);
}

/* === CHAT MESSAGES === */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    scrollbar-width: thin;
    scrollbar-color: var(--surface-hover) transparent;
}

.chat-messages::-webkit-scrollbar { width: 6px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: var(--surface-hover); border-radius: 3px; }

.message {
    display: flex;
    animation: msgIn 0.3s ease-out;
}

@keyframes msgIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.message.user { justify-content: flex-end; }
.message.assistant { justify-content: flex-start; }

.message-content {
    max-width: 82%;
    padding: 0.9rem 1.15rem;
    border-radius: var(--radius);
    font-size: 0.92rem;
    line-height: 1.7;
}

.message.user .message-content {
    background: linear-gradient(135deg, var(--orange), var(--orange-deep));
    color: #fff;
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 12px rgba(255,107,43,0.2);
}

.message.assistant .message-content {
    background: var(--surface);
    border: 1px solid var(--glass-border);
    border-bottom-left-radius: 4px;
}

.message-content blockquote {
    border-left: 3px solid var(--orange);
    padding: 0.5rem 0.9rem;
    margin: 0.6rem 0;
    color: var(--text-mid);
    font-style: italic;
    background: rgba(255,107,43,0.06);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.88rem;
}

.message-content code {
    background: rgba(255,255,255,0.08);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
    color: var(--orange-glow);
}

.message-content strong { font-weight: 700; color: var(--orange-glow); }
.message.user .message-content strong { color: #fff; }

.typing .dots {
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* === CHAT INPUT === */
.chat-input-form {
    display: flex;
    gap: 0.5rem;
    padding: 0.85rem 1.25rem;
    background: rgba(26,26,46,0.95);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.chat-input {
    flex: 1;
    padding: 0.75rem 1.15rem;
    background: var(--surface);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    font-size: 0.92rem;
    color: var(--text-bright);
    font-family: 'DM Sans', sans-serif;
    outline: none;
    transition: all 0.25s;
}

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

.chat-input:focus {
    border-color: var(--orange);
    box-shadow: 0 0 0 3px rgba(255,107,43,0.12);
}

.chat-send {
    border-radius: 24px;
    padding: 0.75rem 1.6rem;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    color: var(--text-mid);
}

.btn-icon:hover {
    background: rgba(255,107,43,0.15);
    border-color: var(--orange);
    color: var(--orange);
}

/* === FOOTER === */
footer {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem 1rem;
    border-top: 1px solid var(--glass-border);
    animation: fadeSlideUp 0.6s ease-out 0.4s both;
}

.footer-credit {
    font-family: 'Outfit', sans-serif;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-mid);
    margin-bottom: 0.25rem;
}

.footer-credit strong {
    color: var(--orange);
    font-weight: 700;
}

.footer-mission {
    font-style: italic;
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 0.75rem;
}

.footer-powered {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-dim);
}

/* === RESPONSIVE === */
@media (max-width: 600px) {
    header h1 { font-size: 2rem; }
    .container { padding: 1.5rem 0.75rem 1rem; }
    .chat-header { flex-wrap: wrap; gap: 0.5rem; }
    .manual-select { max-width: 100%; }
    .message-content { max-width: 92%; }
    .manual-item { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
    .card { padding: 1.25rem; }
    .tagline { font-size: 0.6rem; letter-spacing: 2px; }
}