/* =============================================
   STUDIO UPLOAD PANEL - ConincStudio™
   Cinematic Studio Control Surface
   ============================================= */

/* --- Panel Container --- */
.cs-upload-panel {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(145deg, #120A1F, #1B1333);
    backdrop-filter: blur(24px) saturate(1.2);
    -webkit-backdrop-filter: blur(24px) saturate(1.2);
    border: 1px solid rgba(245, 179, 1, 0.15);
    border-radius: 24px;
    padding: 20px 24px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.9),
        0 0 40px rgba(245, 179, 1, 0.05),
        inset 0 1px 0 rgba(245, 179, 1, 0.05);
    z-index: 1000;
    max-width: 340px;
    min-width: 280px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

/* --- Cinematic Glow Effect --- */
.cs-upload-panel::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at 30% 20%,
        rgba(245, 179, 1, 0.04) 0%,
        rgba(157, 77, 255, 0.02) 30%,
        transparent 70%
    );
    pointer-events: none;
    z-index: 0;
}

.cs-upload-panel::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%,
        #F5B301 20%,
        #FF8C42 50%,
        #9D4DFF 80%,
        transparent 100%
    );
    opacity: 0.6;
    border-radius: 2px;
    animation: panelGlow 3s ease-in-out infinite;
}

@keyframes panelGlow {
    0%, 100% { 
        opacity: 0.4;
        background-position: -100% 0;
    }
    50% { 
        opacity: 0.8;
        background-position: 200% 0;
    }
}

/* --- Panel Hover Effects --- */
.cs-upload-panel:hover {
    transform: translateY(-4px) scale(1.01);
    border-color: rgba(245, 179, 1, 0.25);
    box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.95),
        0 0 60px rgba(245, 179, 1, 0.08),
        0 0 100px rgba(157, 77, 255, 0.04),
        inset 0 1px 0 rgba(245, 179, 1, 0.08);
}

/* --- Handle / Drag Area --- */
.cs-upload-handle {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.3;
    margin-bottom: 14px;
    cursor: grab;
    text-align: center;
    color: #EEEEEE;
    position: relative;
    z-index: 1;
    font-weight: 500;
    transition: opacity 0.3s ease;
    user-select: none;
}

.cs-upload-handle::before {
    content: '✦';
    margin-right: 8px;
    color: #F5B301;
    opacity: 0.5;
}

.cs-upload-handle::after {
    content: '✦';
    margin-left: 8px;
    color: #F5B301;
    opacity: 0.5;
}

.cs-upload-handle:hover {
    opacity: 0.6;
}

/* --- Panel Title (Optional) --- */
.cs-upload-title {
    text-align: center;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cs-upload-title h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #FFFFFF;
    margin: 0;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #F5B301, #FF8C42);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cs-upload-title p {
    font-size: 0.7rem;
    opacity: 0.4;
    margin: 4px 0 0 0;
    color: #EEEEEE;
}

/* --- Upload Content Grid --- */
.cs-upload-content {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    position: relative;
    z-index: 1;
}

/* --- Upload Buttons --- */
.upload-btn {
    font-size: 0.8rem;
    padding: 10px 18px;
    border-radius: 40px;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-weight: 500;
    text-align: center;
    flex: 1 0 auto;
    min-width: 100px;
    position: relative;
    overflow: hidden;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.3px;
}

/* --- Primary Gold Button --- */
.upload-btn.cs-btn-gold {
    background: linear-gradient(135deg, #F5B301, #FF8C42);
    color: #120A1F;
    border: none;
    box-shadow: 
        0 4px 20px rgba(245, 179, 1, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    font-weight: 600;
}

.upload-btn.cs-btn-gold::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.upload-btn.cs-btn-gold:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 
        0 8px 35px rgba(245, 179, 1, 0.4),
        0 0 60px rgba(245, 179, 1, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.upload-btn.cs-btn-gold:hover::before {
    opacity: 1;
}

.upload-btn.cs-btn-gold:active {
    transform: scale(0.97);
    box-shadow: 
        0 2px 10px rgba(245, 179, 1, 0.2);
}

/* --- Glass Button (Secondary) --- */
.upload-btn.cs-btn-glass {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #EEEEEE;
    transition: all 0.3s ease;
}

.upload-btn.cs-btn-glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(245, 179, 1, 0.02),
        rgba(157, 77, 255, 0.02)
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

.upload-btn.cs-btn-glass:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(245, 179, 1, 0.2);
    transform: translateY(-2px);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(245, 179, 1, 0.04);
}

.upload-btn.cs-btn-glass:hover::before {
    opacity: 1;
}

.upload-btn.cs-btn-glass:active {
    transform: scale(0.97);
}

/* --- Icon in Buttons --- */
.upload-btn .btn-icon {
    display: inline-block;
    margin-right: 6px;
    font-size: 0.9rem;
}

/* --- File Inputs (Hidden) --- */
.cs-upload-panel input[type="file"] {
    display: none;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .cs-upload-panel {
        bottom: 16px;
        right: 16px;
        left: 16px;
        max-width: none;
        border-radius: 20px;
        padding: 16px 18px;
        min-width: auto;
    }

    .cs-upload-handle {
        font-size: 0.6rem;
        margin-bottom: 10px;
    }

    .upload-btn {
        font-size: 0.75rem;
        padding: 8px 14px;
        min-width: 80px;
        flex: 1 0 40%;
    }

    .upload-btn.cs-btn-gold {
        flex: 1 0 100%;
    }
}

@media (max-width: 480px) {
    .cs-upload-panel {
        bottom: 12px;
        right: 12px;
        left: 12px;
        border-radius: 16px;
        padding: 14px 14px;
    }

    .cs-upload-content {
        gap: 8px;
    }

    .upload-btn {
        font-size: 0.7rem;
        padding: 6px 12px;
        min-width: 60px;
        flex: 1 0 45%;
    }
}

/* --- Dark Mode Scrollbar --- */
.cs-upload-panel::-webkit-scrollbar {
    width: 3px;
}

.cs-upload-panel::-webkit-scrollbar-track {
    background: transparent;
}

.cs-upload-panel::-webkit-scrollbar-thumb {
    background: rgba(245, 179, 1, 0.3);
    border-radius: 10px;
}

/* --- Loading State --- */
.cs-upload-panel.loading .upload-btn {
    pointer-events: none;
    opacity: 0.6;
}

.cs-upload-panel.loading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 100%;
    background: linear-gradient(90deg, 
        #F5B301, 
        #FF8C42, 
        #9D4DFF, 
        #00E6D7,
        #F5B301
    );
    background-size: 200% 100%;
    animation: loadingBar 1.5s ease-in-out infinite;
}

@keyframes loadingBar {
    0% { background-position: -100% 0; }
    100% { background-position: 200% 0; }
}

/* --- Tooltip Indicator --- */
.cs-upload-panel .upload-btn[data-tooltip] {
    position: relative;
}

.cs-upload-panel .upload-btn[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    background: #120A1F;
    color: #EEEEEE;
    padding: 4px 12px;
    border-radius: 8px;
    font-size: 0.65rem;
    font-weight: 400;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    border: 1px solid rgba(245, 179, 1, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.cs-upload-panel .upload-btn[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

/* --- Drag & Drop Highlight --- */
.cs-upload-panel.drag-over {
    border-color: #F5B301;
    box-shadow: 
        0 0 40px rgba(245, 179, 1, 0.15),
        0 0 80px rgba(157, 77, 255, 0.08),
        inset 0 0 40px rgba(245, 179, 1, 0.03);
    transform: scale(1.02);
}

.cs-upload-panel.drag-over::before {
    content: '📂 Drop your files here';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.2rem;
    color: #F5B301;
    opacity: 0.6;
    z-index: 10;
    background: rgba(18, 10, 31, 0.95);
    padding: 20px 40px;
    border-radius: 16px;
    border: 2px dashed rgba(245, 179, 1, 0.3);
    backdrop-filter: blur(8px);
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* --- Success State --- */
.cs-upload-panel.success {
    border-color: #00E6D7;
    box-shadow: 0 0 40px rgba(0, 230, 215, 0.1);
}

.cs-upload-panel.success::after {
    content: '✓ Upload Complete';
    position: absolute;
    top: -12px;
    right: 20px;
    background: #00E6D7;
    color: #120A1F;
    padding: 2px 16px;
    border-radius: 20px;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* --- Minimalist Mode (Collapsed) --- */
.cs-upload-panel.minimal {
    max-width: 56px;
    min-width: 56px;
    padding: 12px;
    border-radius: 30px;
    cursor: pointer;
}

.cs-upload-panel.minimal .cs-upload-handle {
    font-size: 0;
    margin: 0;
}

.cs-upload-panel.minimal .cs-upload-handle::before,
.cs-upload-panel.minimal .cs-upload-handle::after {
    display: none;
}

.cs-upload-panel.minimal .cs-upload-content {
    display: none;
}

.cs-upload-panel.minimal::after {
    content: '✦';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.4rem;
    color: #F5B301;
    opacity: 0.6;
}

.cs-upload-panel.minimal:hover {
    transform: scale(1.05);
    border-color: rgba(245, 179, 1, 0.3);
}

.cs-upload-panel.minimal:hover::after {
    opacity: 1;
}

/*==============================================
PANEL NOTIFICATION STYLES
===============================================*/
/* --- Panel Notification --- */
.cs-panel-notification {
    position: absolute;
    top: -48px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(18, 10, 31, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(245, 179, 1, 0.15);
    border-radius: 12px;
    padding: 8px 20px;
    font-size: 0.8rem;
    color: #EEEEEE;
    white-space: nowrap;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
    transition: all 0.3s ease;
    z-index: 10;
    font-weight: 500;
    letter-spacing: 0.3px;
    display: none;
    opacity: 0;
}

.cs-panel-notification::before {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid rgba(18, 10, 31, 0.95);
}

/* --- Responsive Notification --- */
@media (max-width: 768px) {
    .cs-panel-notification {
        font-size: 0.7rem;
        padding: 6px 16px;
        white-space: normal;
        max-width: 80%;
    }
}