style.css

:root {
    --bg-color: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(15, 23, 42, 0.6);
    --success-color: #10b981;
    --danger-color: #ef4444;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    /* Centering might be an issue if content overflows, fixed below */
    padding: 2rem 0;
    overflow-x: hidden;
    position: relative;
    align-items: flex-start;
    /* Better for long content */
}

/* Dynamic Background */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 10s infinite ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: #6366f1;
    top: -50px;
    left: -100px;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: #ec4899;
    bottom: -50px;
    right: -50px;
    animation-delay: -2s;
}

.blob-3 {
    width: 350px;
    height: 350px;
    background: #06b6d4;
    bottom: 20%;
    left: 20%;
    animation-delay: -5s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(30px, -50px);
    }
}

/* Main Container */
.container {
    width: 90%;
    max-width: 1200px;
    /* Increased max-width for grid */
    padding: 2rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
    margin-top: 2rem;
}

.app-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.app-header h1 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.app-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Upload Zone */
.upload-zone {
    border: 3px dashed var(--glass-border);
    border-radius: 20px;
    padding: 4rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.02);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.1);
    transform: scale(1.01);
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.upload-zone:hover .upload-icon {
    color: var(--accent-color);
}

.upload-zone h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.upload-zone p {
    color: var(--text-secondary);
}

/* Editor Panel & Controls */
.hidden {
    display: none;
}

.editor-panel {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.controls-header {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.slider-group {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.slider-group label {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    color: var(--text-primary);
}

input[type=range] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    background: transparent;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    margin-top: -8px;
    box-shadow: 0 0 10px var(--accent-glow);
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: inherit;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
    text-decoration: none;
    /* For link buttons */
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* Image Card Component */
.result-card {
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    overflow: hidden;
    transition: transform 0.2s;
    display: flex;
    flex-direction: column;
}

.result-card:hover {
    transform: translateY(-4px);
}

.card-preview {
    height: 200px;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.card-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* changed from cover to contain to show full image */
    padding: 10px;
}

.card-info {
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.file-name {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.25rem;
}

.size-comparison {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.2);
    padding: 0.5rem;
    border-radius: 8px;
}

.new-size {
    color: var(--text-primary);
    font-weight: 500;
}

.savings-tag {
    color: var(--success-color);
    font-weight: 700;
    font-size: 0.85rem;
}

.card-actions {
    margin-top: 1rem;
}

.btn-download {
    width: 100%;
    justify-content: center;
}

/* Loading State */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.spinner {
    width: 30px;
    height: 30px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent-color);
    animation: spin 1s ease-in-out infinite;
}

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

/* Mobile Responsive */
@media (max-width: 640px) {
    .container {
        width: 100%;
        padding: 1rem;
        border-radius: 0;
        min-height: 100vh;
        border: none;
        margin-top: 0;
    }

    .controls-header {
        flex-direction: column;
        align-items: stretch;
    }

    .header-actions {
        justify-content: space-between;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }
}

.resize-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-width: 150px;
}

.resize-group label {
    font-weight: 600;
    color: var(--text-primary);
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: "▼";
    font-size: 0.8rem;
    color: var(--accent-color);
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

select {
    width: 100%;
    padding: 0.75rem 1rem;
    padding-right: 2.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: all 0.2s ease;
}

select:hover,
select:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
    outline: none;
}

select option {
    background: #1e293b;
    color: var(--text-primary);
}