:root {
    --bg-color: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #6366f1;
    /* Indigo 500 */
    --accent-hover: #4f46e5;
    /* Indigo 600 */
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
    --input-bg: rgba(15, 23, 42, 0.6);
    --input-border: #334155;
    --success: #22c55e;
    --danger: #ef4444;
    --font-main: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
    padding: 2rem;
}

/* Background Effects */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: #4f46e5;
    top: -100px;
    left: -100px;
    animation: float 10s infinite alternate;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: #ec4899;
    /* Pink */
    bottom: -50px;
    right: -50px;
    animation: float 8s infinite alternate-reverse;
}

.blob-3 {
    width: 200px;
    height: 200px;
    background: #06b6d4;
    /* Cyan */
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 12s infinite alternate;
}

@keyframes float {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(30px, 30px);
    }
}

/* Layout */
.container {
    width: 100%;
    max-width: 900px;
    z-index: 1;
}

.main-header {
    text-align: center;
    margin-bottom: 3rem;
}

.main-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #818cf8, #e879f9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.card-header {
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 1rem;
}

.card-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.card-header p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Form Elements */
.input-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
}

.row {
    display: flex;
    gap: 1rem;
}

.row .input-group {
    flex: 1;
}

label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}

input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.btn-primary {
    width: 100%;
    padding: 0.85rem;
    border: none;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    margin-top: 1rem;
}

.btn-primary:hover {
    opacity: 0.9;
}

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

/* Results */
.result-box {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 1rem;
    border: 1px solid var(--card-border);
    animation: fadeIn 0.4s ease;
}

.result-box.hidden {
    display: none;
}

.result-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.result-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--card-border);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.value.negative {
    color: var(--danger);
}

.value.positive {
    color: var(--success);
}

.value.primary {
    color: var(--accent-primary);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* Tooltip */
.tooltip-container {
    position: relative;
    width: 100%;
}

.tooltip-text {
    visibility: hidden;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: #fff;
    padding: 5px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.tooltip-container:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

@media (max-width: 600px) {
    .main-header h1 {
        font-size: 2rem;
    }

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

    .row {
        flex-direction: column;
        gap: 0;
    }
}

/* History Section */
.history-section {
    margin-top: 2rem;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.btn-text:hover {
    color: var(--danger);
    text-decoration: underline;
}

.history-list {
    list-style: none;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

/* Custom Scrollbar */
.history-list::-webkit-scrollbar {
    width: 8px;
}

.history-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.history-list::-webkit-scrollbar-thumb {
    background: var(--input-border);
    border-radius: 4px;
}

.history-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.history-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.history-item:hover {
    background: rgba(255, 255, 255, 0.07);
}

.history-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.history-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.history-details {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.btn-delete {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.empty-message {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
    font-style: italic;
}

/* Marketplace Selector Buttons */
.marketplace-selector {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    padding: 0.25rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 0.75rem;
}

.mp-btn {
    flex: 1;
    padding: 0.6rem 0.5rem;
    background: transparent;
    border: none;
    border-radius: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mp-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.mp-btn.active {
    background: var(--accent-primary);
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

/* Button Group */
.btn-group {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.btn-secondary {
    padding: 0.85rem;
    border: 1px solid var(--input-border);
    border-radius: 0.75rem;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    flex: 1;
    /* Both buttons same width */
}

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

/* Primary btn adjustment for group */
.btn-primary {
    margin-top: 0;
    /* Override default margin */
    flex: 2;
    /* Primary button wider */
}


/* Top Navigation */
.nav-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
    backdrop-filter: blur(10px);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Footer adjustment */
.main-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent-primary);
}

/* Campaign Simulator Specifics */
.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

@media (max-width: 768px) {
    .compare-grid {
        grid-template-columns: 1fr;
    }
}

.metric-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.2s;
}

.metric-card:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.05);
}

.metric-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
}

.metric-delta {
    font-size: 0.85rem;
    margin-left: 0.5rem;
    padding: 0.2rem 0.5rem;
    border-radius: 0.5rem;
}

.delta-up {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.delta-down {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}


/* Seller Notebook Specifics */
.note-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding-bottom: 5rem;
}

.note-card {
    background: rgba(30, 41, 59, 0.7);
    border-radius: 1rem;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    transition: all 0.2s;
    min-height: 200px;
    display: flex;
    flex-direction: column;
}

.note-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.note-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.note-date {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.note-title {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: white;
}

.note-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    white-space: pre-wrap;
    flex-grow: 1;
}

.note-actions {
    margin-top: 1rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.note-card:hover .note-actions {
    opacity: 1;
}

.btn-icon-sm {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

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

.btn-icon-sm.delete:hover {
    background: rgba(239, 68, 68, 0.5);
}


.fab-add {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 64px;
    height: 64px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.5);
    border: none;
    cursor: pointer;
    transition: transform 0.2s;
    z-index: 100;
}

.fab-add:hover {
    transform: scale(1.1) rotate(90deg);
}

/* Modal for Notes */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: #1e293b;
    width: 100%;
    max-width: 500px;
    border-radius: 1.5rem;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform: scale(0.9);
    transition: transform 0.2s;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.color-options {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.color-circle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
}

.color-circle.selected {
    border-color: white;
}