:root {
    --primary: #833ab4;
    --primary-gradient: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    --bg-dark: #0f172a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --success: #10b981;
    --error: #ef4444;
    --radius: 16px;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(131, 58, 180, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(220, 39, 67, 0.15) 0%, transparent 40%);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

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

/* Base Components */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.5);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Inputs & Buttons */
.input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
    color: var(--text-dim);
    font-size: 0.8rem;
    font-weight: 700;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--glass-border);
}

.divider:not(:empty)::before {
    margin-right: 1rem;
}

.divider:not(:empty)::after {
    margin-left: 1rem;
}

.upload-area {
    text-align: center;
    padding: 1.5rem;
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.upload-area:hover {
    border-color: #e6683c;
    background: rgba(230, 104, 60, 0.05);
}

.upload-area .tiny-text {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid var(--glass-border);
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

input,
textarea {
    flex: 1;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 0.8rem 1.2rem;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #e6683c;
    background: rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 0 4px rgba(230, 104, 60, 0.1);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-primary:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 8px 20px -5px rgba(220, 39, 67, 0.4);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    filter: grayscale(1);
}

/* Account Section */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.btn-small {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-small:hover {
    background: rgba(255, 255, 255, 0.2);
}

.accounts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.account-item {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    position: relative;
    cursor: pointer;
    transition: all 0.3s;
    user-select: none;
}

.account-item:hover {
    border-color: var(--text-dim);
}

.account-item.selected {
    border-color: #e6683c;
    background: rgba(230, 104, 60, 0.1);
    box-shadow: inset 0 0 0 1px #e6683c;
}

.account-item input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.account-item label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.2rem;
    pointer-events: none;
}

.account-item small {
    color: var(--text-dim);
    font-size: 0.75rem;
    display: block;
    pointer-events: none;
}

/* Preview Area */
#previewArea {
    margin-top: 1.5rem;
    animation: fadeInUp 0.5s ease-out;
}

.preview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.preview-media {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: #000;
    aspect-ratio: 9/16;
}

.preview-media img,
.preview-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.caption-editor label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.caption-editor textarea {
    width: 100%;
    resize: none;
    height: 154px;
}

/* Action Bar - Natural Flow */
.action-bar {
    margin-top: 3rem;
    margin-bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.btn-action {
    width: 100%;
    padding: 1.2rem;
    font-size: 1.2rem;
    border-radius: 16px;
    background: var(--primary-gradient);
    border: none;
    color: white;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 10px 30px -10px rgba(220, 39, 67, 0.5);
}

.btn-action:disabled {
    opacity: 0.5;
    filter: grayscale(1);
    box-shadow: none;
}

.btn-action.active:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px -10px rgba(220, 39, 67, 0.6);
}

/* Notifications */
#statusMessage {
    margin-top: 1rem;
    text-align: center;
    font-weight: 500;
    min-height: 1.5rem;
}

.status-success {
    color: var(--success);
}

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

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    transition: all 0.3s ease;
    padding: 1rem;
}

.modal.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: #1e293b;
    width: 100%;
    max-width: 480px;
    padding: 3rem 2rem 2rem;
    border-radius: 28px;
    border: 1px solid var(--glass-border);
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: modalZoomIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    text-align: center;
}

@keyframes modalZoomIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-dim);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    header h1 {
        font-size: 2.2rem;
    }

    .preview-container {
        grid-template-columns: 1fr;
    }

    .preview-media {
        aspect-ratio: auto;
        max-height: 300px;
    }

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

    .input-group {
        flex-direction: column;
    }

    .btn-primary {
        width: 100%;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .btn-small {
        width: 100%;
        text-align: center;
        padding: 0.8rem;
    }

    .modal-content {
        padding: 2.5rem 1.5rem 1.5rem;
        width: 95%;
    }
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

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

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

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

.hidden {
    display: none !important;
}