/* ========================================
   AI Project Management - Frontend/Public Styles
   Modern Design with Custom Color Scheme
   - Yellow (#f97316): 25% - Accent, highlights, CTAs
   - Dark Blue (#0f172a): 35% - Primary text, headers, buttons
   - White (#ffffff): 40% - Backgrounds, cards, inputs
   ======================================== */

.ai-pm-frontend {
    --ai-pm-yellow: #f97316;
    --ai-pm-blue: #0f172a;
    --ai-pm-white: #ffffff;
    --ai-pm-yellow-soft: rgba(249, 115, 22, 0.12);
    --ai-pm-yellow-hover: #ea580c;
    --ai-pm-blue-soft: rgba(15, 23, 42, 0.08);
    --ai-pm-blue-hover: #1e293b;
    --ai-pm-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --ai-pm-shadow-md: 0 6px 20px rgba(15, 23, 42, 0.1);
    --ai-pm-shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.15);
    --ai-pm-shadow-yellow: 0 8px 24px rgba(249, 115, 22, 0.25);

    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    border: none;
    padding: 28px 32px;
    border-radius: 16px;
    background: linear-gradient(135deg,
        var(--ai-pm-white) 0%,
        rgba(249, 115, 22, 0.04) 50%,
        rgba(15, 23, 42, 0.03) 100%);
    color: var(--ai-pm-blue);
    box-shadow: var(--ai-pm-shadow-lg);
    max-width: 800px;
    margin: 20px auto;
    position: relative;
    overflow: hidden;
}

/* Decorative gradient border effect */
.ai-pm-frontend::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 3px;
    background: linear-gradient(135deg, var(--ai-pm-yellow) 0%, var(--ai-pm-blue) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.4;
    pointer-events: none;
}

/* ========================================
   TEXTAREA - Modern Input Design
   ======================================== */
.ai-pm-frontend textarea.ai-pm-frontend-prompt {
    width: 100%;
    box-sizing: border-box;
    background: var(--ai-pm-white);
    border: 2px solid var(--ai-pm-blue-soft);
    border-radius: 12px;
    padding: 14px 18px;
    color: var(--ai-pm-blue);
    font-size: 15px;
    font-family: inherit;
    line-height: 1.6;
    min-height: 120px;
    resize: vertical;
    transition: all 0.2s ease;
    box-shadow: var(--ai-pm-shadow-sm);
}

.ai-pm-frontend textarea.ai-pm-frontend-prompt:focus {
    outline: none;
    border-color: var(--ai-pm-yellow);
    box-shadow: 0 0 0 4px var(--ai-pm-yellow-soft), var(--ai-pm-shadow-md);
    transform: translateY(-2px);
}

.ai-pm-frontend textarea.ai-pm-frontend-prompt::placeholder {
    color: rgba(15, 23, 42, 0.4);
    font-style: italic;
}

/* ========================================
   BUTTON - Creative Modern Design
   ======================================== */
.ai-pm-frontend button.ai-pm-frontend-send {
    position: relative;
    margin-top: 16px;
    width: 100%;
    background: linear-gradient(135deg, var(--ai-pm-yellow) 0%, var(--ai-pm-yellow-hover) 100%);
    color: var(--ai-pm-white);
    border: none;
    border-radius: 12px;
    padding: 14px 28px;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.5px;
    cursor: pointer;
    overflow: hidden;
    box-shadow: var(--ai-pm-shadow-yellow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Shine effect */
.ai-pm-frontend button.ai-pm-frontend-send::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.ai-pm-frontend button.ai-pm-frontend-send:hover {
    background: linear-gradient(135deg, var(--ai-pm-blue) 0%, var(--ai-pm-blue-hover) 100%);
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.3);
    transform: translateY(-3px);
}

.ai-pm-frontend button.ai-pm-frontend-send:hover::before {
    left: 100%;
}

.ai-pm-frontend button.ai-pm-frontend-send:active {
    transform: translateY(-1px);
    box-shadow: var(--ai-pm-shadow-md);
}

.ai-pm-frontend button.ai-pm-frontend-send:disabled {
    background: var(--ai-pm-blue-soft);
    color: rgba(15, 23, 42, 0.4);
    box-shadow: none;
    cursor: not-allowed;
    transform: none;
}

.ai-pm-frontend button.ai-pm-frontend-send:disabled::before {
    display: none;
}

/* ========================================
   RESPONSE BOX - Clean Display
   ======================================== */
.ai-pm-frontend pre.ai-pm-frontend-response {
    white-space: pre-wrap;
    word-wrap: break-word;
    background: var(--ai-pm-white);
    padding: 18px 20px;
    border-radius: 12px;
    border: 2px solid var(--ai-pm-yellow);
    border-left: 6px solid var(--ai-pm-yellow);
    margin-top: 20px;
    color: var(--ai-pm-blue);
    font-family: inherit;
    font-size: 15px;
    line-height: 1.7;
    box-shadow: var(--ai-pm-shadow-md);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-pm-frontend pre.ai-pm-frontend-response:empty {
    display: none;
}

/* ========================================
   LOADING STATE
   ======================================== */
.ai-pm-frontend.loading button.ai-pm-frontend-send {
    position: relative;
    background: var(--ai-pm-blue-soft);
    color: transparent;
    pointer-events: none;
}

.ai-pm-frontend.loading button.ai-pm-frontend-send::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid rgba(15, 23, 42, 0.2);
    border-top-color: var(--ai-pm-yellow);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .ai-pm-frontend {
        padding: 20px;
        border-radius: 12px;
        margin: 12px;
    }

    .ai-pm-frontend textarea.ai-pm-frontend-prompt {
        padding: 12px 14px;
        font-size: 14px;
    }

    .ai-pm-frontend button.ai-pm-frontend-send {
        padding: 12px 20px;
        font-size: 15px;
    }

    .ai-pm-frontend pre.ai-pm-frontend-response {
        padding: 14px 16px;
        font-size: 14px;
    }
}

/* ========================================
   ERROR STATE
   ======================================== */
.ai-pm-frontend-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
    border: 2px solid rgba(239, 68, 68, 0.3);
    border-left: 6px solid #ef4444;
    padding: 16px 20px;
    border-radius: 12px;
    margin-top: 16px;
    color: #991b1b;
    font-weight: 600;
    box-shadow: var(--ai-pm-shadow-sm);
}

/* ========================================
   SUCCESS STATE
   ======================================== */
.ai-pm-frontend-success {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(34, 197, 94, 0.05) 100%);
    border: 2px solid rgba(34, 197, 94, 0.3);
    border-left: 6px solid #22c55e;
    padding: 16px 20px;
    border-radius: 12px;
    margin-top: 16px;
    color: #15803d;
    font-weight: 600;
    box-shadow: var(--ai-pm-shadow-sm);
}

/* ========================================
   SCROLLBAR STYLING
   ======================================== */
.ai-pm-frontend ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.ai-pm-frontend ::-webkit-scrollbar-track {
    background: var(--ai-pm-blue-soft);
    border-radius: 4px;
}

.ai-pm-frontend ::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--ai-pm-yellow) 0%, var(--ai-pm-yellow-hover) 100%);
    border-radius: 4px;
}

.ai-pm-frontend ::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--ai-pm-yellow-hover) 0%, var(--ai-pm-yellow) 100%);
}