@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

body {
    font-family: 'Roboto', sans-serif;
    background-color: #F0F2F5;
    color: #1F1F1F;
}

/* Material 3 Card */
.m3-card {
    background-color: #FFFFFF;
    border-radius: 24px;
    box-shadow: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
}

.m3-surface-container {
    background-color: #F3F6FC;
    border-radius: 16px;
}

/* Buttons */
.btn-filled {
    background-color: #0B57D0;
    color: #FFFFFF;
    border-radius: 9999px;
    transition: transform 0.05s ease, background-color 0.2s, box-shadow 0.2s;
    box-shadow: 0px 1px 2px rgba(0,0,0,0.3);
}

.btn-filled:hover {
    background-color: #0842A0;
    box-shadow: 0px 1px 3px 1px rgba(0, 0, 0, 0.15);
}

.btn-filled:active {
    transform: scale(0.98);
}

.btn-filled:disabled {
    background-color: #E0E2E0;
    color: #1F1F1F;
    box-shadow: none;
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-tonal {
    background-color: #C2E7FF;
    color: #001D35;
    border-radius: 12px;
    transition: background-color 0.1s;
}

.btn-tonal:hover {
    background-color: #B3D7EF;
}

.btn-outlined {
    border: 1px solid #747775;
    color: #0B57D0;
    border-radius: 9999px;
    background: transparent;
}

.btn-outlined:hover {
    background-color: rgba(11, 87, 208, 0.08);
    border-color: #0B57D0;
}

/* Inputs */
.m3-input-container {
    position: relative;
}

.m3-input {
    border: 1px solid #747775;
    border-radius: 4px;
    padding: 12px 36px 12px 16px;
    font-size: 16px;
    color: #1F1F1F;
    background: transparent;
    width: 100%;
}

.m3-input:focus {
    outline: none;
    border-color: #0B57D0;
    border-width: 2px;
    padding: 11px 35px 11px 15px;
}

.m3-label {
    position: absolute;
    left: 12px;
    top: -8px;
    background-color: #FFFFFF;
    padding: 0 4px;
    font-size: 12px;
    color: #747775;
    pointer-events: none;
}

.m3-input:focus + .m3-label {
    color: #0B57D0;
}

/* Segmented Control */
.segmented-group {
    display: flex;
    border: 1px solid #747775;
    border-radius: 9999px;
    overflow: hidden;
    width: 100%; 
}

.segmented-option input {
    display: none;
}

.segmented-option label {
    padding: 8px 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: #444746;
    border-right: 1px solid #747775;
    background: transparent;
    transition: background 0.1s;
    width: 100%;
}

.segmented-option:last-child label {
    border-right: none;
}

.segmented-option input:checked + label {
    background-color: #C2E7FF;
    color: #001D35;
}

.segmented-option label:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

/* Range Slider */
input[type=range] {
    height: 4px; 
    border-radius: 2px;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: #0B57D0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    margin-top: -8px;
}

input[type=range]::-webkit-slider-runnable-track {
    background: #E0E2E0;
    height: 4px;
    border-radius: 2px;
}

/* Drop Zone */
#dropZone {
    background-color: #F3F6FC;
    border: 2px dashed #747775;
    transition: background-color 0.1s;
}

#dropZone.drop-active {
    background-color: #E8F0FE;
    border-color: #0B57D0;
}

.checkerboard {
    background-image: 
        linear-gradient(45deg, #e0e0e0 25%, transparent 25%), 
        linear-gradient(-45deg, #e0e0e0 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #e0e0e0 75%), 
        linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: white;
}

/* Lock Button */
.lock-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    padding: 4px;
    border-radius: 50%;
    color: #747775;
    transition: all 0.1s;
}

.lock-btn:hover {
    background-color: rgba(0,0,0,0.05);
    color: #1F1F1F;
}

.lock-btn.locked {
    color: #0B57D0;
    background-color: #E8F0FE;
}

/* Toggle Switch */
.toggle-switch {
    appearance: none;
    width: 48px;
    height: 28px;
    background: #E0E2E0;
    border-radius: 9999px;
    border: 2px solid #747775;
    position: relative;
    cursor: pointer;
    transition: all 0.1s ease;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 16px;
    height: 16px;
    background: #747775;
    border-radius: 50%;
    transition: transform 0.1s cubic-bezier(0.2, 0.0, 0, 1.0), width 0.1s, height 0.1s;
}

.toggle-switch:checked {
    background: #0B57D0;
    border-color: #0B57D0;
}

.toggle-switch:checked::after {
    background: #FFFFFF;
    transform: translateX(20px);
    width: 20px;
    height: 20px;
    top: 2px;
}

.toggle-switch:hover::after {
    background: #1F1F1F;
}

.toggle-switch:checked:hover::after {
    background: #D3E3FD;
}

/* Grid View */
#previewGrid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
    width: 100%;
    max-height: 100%;
    overflow-y: auto;
    padding: 8px;
}

.grid-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    background: white;
    border: 1px solid #E0E2E0;
    transition: transform 0.1s;
}

.grid-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-chip {
    position: absolute;
    top: 6px;
    right: 6px;
    background: rgba(0,0,0,0.6);
    color: white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(4px);
}

.remove-chip:hover {
    background: rgba(179, 38, 30, 0.9);
}