/* ===================================
   App Body
   =================================== */
.app-body {
    background: var(--gray-50);
    min-height: 100vh;
}

/* ===================================
   App Header
   =================================== */
.app-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* ===================================
   Progress Bar
   =================================== */
.progress-container {
    height: 4px;
    background: var(--gray-200);
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    width: 33.33%;
    transition: width var(--transition-base);
}

/* ===================================
   Step Indicator
   =================================== */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-2xl) 0;
}

.step-dot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.step-dot .dot {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-200);
    color: var(--gray-500);
    font-weight: 700;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.step-dot.active .dot {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
}

.step-dot.completed .dot {
    background: var(--primary);
    color: var(--white);
}

.step-dot .label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    font-weight: 500;
}

.step-dot.active .label {
    color: var(--primary);
    font-weight: 600;
}

.step-line {
    width: 80px;
    height: 2px;
    background: var(--gray-200);
    margin-bottom: 24px;
}

@media (max-width: 576px) {
    .step-dot .label {
        display: none;
    }
    
    .step-line {
        width: 40px;
        margin-bottom: 0;
    }
}

/* ===================================
   Form Container
   =================================== */
.form-container {
    max-width: 700px;
    margin: 0 auto;
    padding-bottom: var(--spacing-3xl);
}

.form-step {
    display: none;
    animation: fadeInUp 0.5s ease;
}

.form-step.active {
    display: block;
}

.step-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.step-header h2 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.step-header h2 i {
    color: var(--primary);
}

.step-header p {
    color: var(--gray-500);
}

/* ===================================
   Form Card
   =================================== */
.form-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    color: var(--gray-700);
}

.form-group label i {
    color: var(--primary);
    width: 20px;
}

.form-input {
    width: 100%;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.form-input::placeholder {
    color: var(--gray-400);
}

.input-hint {
    display: block;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--gray-400);
}

/* Select Wrapper */
.select-wrapper {
    position: relative;
}

.form-select {
    width: 100%;
    padding: var(--spacing-lg);
    padding-left: var(--spacing-3xl);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    appearance: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
}

.select-wrapper i {
    position: absolute;
    left: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    pointer-events: none;
}

/* ===================================
   Radio Cards
   =================================== */
.radio-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.radio-cards.small {
    grid-template-columns: repeat(4, 1fr);
}

.radio-card {
    cursor: pointer;
}

.radio-card input {
    display: none;
}

.radio-card .card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    text-align: center;
}

.radio-card:hover .card-content {
    border-color: var(--primary);
}

.radio-card input:checked + .card-content {
    background: #ecfdf5;
    border-color: var(--primary);
}

.radio-card .card-icon {
    font-size: var(--font-size-2xl);
}

.radio-card .card-title {
    font-weight: 600;
    color: var(--gray-700);
}

.radio-card .card-desc {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

@media (max-width: 576px) {
    .radio-cards {
        grid-template-columns: 1fr;
    }
    
    .radio-cards.small {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   Checkbox Cards
   =================================== */
.checkbox-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.checkbox-card {
    cursor: pointer;
}

.checkbox-card input {
    display: none;
}

.checkbox-card .card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.checkbox-card:hover .card-content {
    border-color: var(--primary);
}

.checkbox-card input:checked + .card-content {
    background: #ecfdf5;
    border-color: var(--primary);
}

.checkbox-card .card-content i {
    font-size: var(--font-size-xl);
    color: var(--gray-500);
}

.checkbox-card input:checked + .card-content i {
    color: var(--primary);
}

.checkbox-card .card-content span {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

@media (max-width: 576px) {
    .checkbox-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   Form Actions
   =================================== */
.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.form-actions .btn-primary {
    margin-right: auto;
}

@media (max-width: 576px) {
    .form-actions {
        flex-direction: column-reverse;
    }
    
    .form-actions .btn {
        width: 100%;
    }
    
    .form-actions .btn-primary {
        margin-right: 0;
    }
}

/* ===================================
   Loading State
   =================================== */
.loading-state {
    text-align: center;
    padding: var(--spacing-3xl);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.loading-animation {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.loading-circle {
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: var(--radius-full);
    animation: loadingBounce 1.4s ease-in-out infinite both;
}

.loading-circle:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-circle:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes loadingBounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

.loading-state h3 {
    margin-bottom: var(--spacing-sm);
}

.loading-state p {
    color: var(--gray-500);
    margin-bottom: var(--spacing-xl);
}

.loading-steps {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
}

.loading-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-400);
    font-size: var(--font-size-sm);
}

.loading-step.active {
    color: var(--primary);
}

.loading-step.active i {
    animation: pulse 1s ease-in-out infinite;
}

.loading-step.completed {
    color: var(--primary);
}

/* ===================================
   Results Container
   =================================== */
.results-container {
    animation: fadeInUp 0.5s ease;
}

.results-header {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.success-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    background: #ecfdf5;
    border-radius: var(--radius-full);
}

.success-icon i {
    font-size: 40px;
    color: var(--primary);
}

.results-header h2 {
    margin-bottom: var(--spacing-sm);
}

.results-header p {
    color: var(--gray-500);
}

/* ===================================
   Results Tabs
   =================================== */
.results-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    background: var(--white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: transparent;
    color: var(--gray-500);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--gray-700);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* ===================================
   Angles Grid
   =================================== */
.angles-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.angle-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border-right: 5px solid;
    position: relative;
    overflow: hidden;
}

.angle-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    opacity: 0.1;
    border-radius: 0 0 0 100%;
}

.angle-card.pain {
    border-color: #ef4444;
}

.angle-card.pain::before {
    background: #ef4444;
}

.angle-card.result {
    border-color: #10b981;
}

.angle-card.result::before {
    background: #10b981;
}

.angle-card.curiosity {
    border-color: #3b82f6;
}

.angle-card.curiosity::before {
    background: #3b82f6;
}

.angle-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.angle-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.angle-title .icon {
    font-size: var(--font-size-xl);
}

.angle-title h3 {
    font-size: var(--font-size-lg);
    margin: 0;
}

.angle-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.angle-content {
    background: var(--gray-50);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.angle-content p {
    white-space: pre-wrap;
    line-height: 1.8;
    color: var(--gray-700);
}

.angle-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.angle-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.angle-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.angle-stat i {
    color: var(--primary);
}

.angle-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ===================================
   Platform Filter
   =================================== */
.platform-filter {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.platform-filter-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-600);
    transition: all var(--transition-fast);
}

.platform-filter-btn:hover {
    border-color: var(--primary);
}

.platform-filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* ===================================
   Ads Grid
   =================================== */
.ads-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.ad-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.ad-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gray-900);
    color: var(--white);
}

.ad-platform {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
}

.ad-platform i {
    font-size: var(--font-size-lg);
}

.ad-platform.facebook i { color: #1877f2; }
.ad-platform.instagram i { color: #e4405f; }
.ad-platform.twitter i { color: #1da1f2; }
.ad-platform.snapchat i { color: #fffc00; }
.ad-platform.tiktok i { color: #00f2ea; }
.ad-platform.google i { color: #4285f4; }

.ad-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--gray-400);
}

.ad-card-body {
    padding: var(--spacing-xl);
}

.ad-text {
    white-space: pre-wrap;
    line-height: 1.8;
    color: var(--gray-700);
    font-size: var(--font-size-base);
}

.ad-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.char-count {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.char-count.warning {
    color: var(--warning);
}

.char-count.danger {
    color: var(--danger);
}

.ad-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: var(--primary-dark);
}

.copy-btn.copied {
    background: var(--secondary);
}

.edit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--gray-200);
    color: var(--gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.edit-btn:hover {
    background: var(--gray-300);
}

/* ===================================
   Results Actions
   =================================== */
.results-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-xl);
}

@media (max-width: 576px) {
    .results-actions {
        flex-direction: column;
    }
    
    .results-actions .btn {
        width: 100%;
    }
}

/* ===================================
   History Sidebar
   =================================== */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    animation: fadeIn 0.3s ease;
}

.history-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 350px;
    height: 100vh;
    background: var(--white);
    box-shadow: var(--shadow-2xl);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    margin: 0;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.history-item {
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.history-item:hover {
    background: var(--gray-100);
}

.history-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.history-item-title {
    font-weight: 600;
    color: var(--gray-700);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.history-item-date {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
}

.history-item-preview {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-empty {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--gray-400);
}

.history-empty i {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

@media (max-width: 576px) {
    .history-sidebar {
        width: 100%;
    }
}

/* ===================================
   Toast Notification
   =================================== */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--gray-900);
    color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-toast);
    animation: toastIn 0.3s ease;
}

.toast.hidden {
    animation: toastOut 0.3s ease forwards;
}

.toast i {
    color: var(--primary);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    to {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

/* ===================================
   App Main
   =================================== */
.app-main {
    padding: var(--spacing-md) 0;
}

/* ===================================
   Empty State
   =================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
}

.empty-state i {
    font-size: 64px;
    color: var(--gray-300);
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    color: var(--gray-500);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--gray-400);
}

/* ===================================
   Error State
   =================================== */
.error-state {
    text-align: center;
    padding: var(--spacing-2xl);
    background: #fef2f2;
    border-radius: var(--radius-xl);
    border: 1px solid #fecaca;
}

.error-state i {
    font-size: 48px;
    color: #ef4444;
    margin-bottom: var(--spacing-md);
}

.error-state h3 {
    color: #991b1b;
    margin-bottom: var(--spacing-sm);
}

.error-state p {
    color: #b91c1c;
    margin-bottom: var(--spacing-lg);
}

/* ===================================
   Responsive Adjustments
   =================================== */
@media (max-width: 768px) {
    .form-card {
        padding: var(--spacing-lg);
    }
    
    .angle-footer {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
    
    .ad-card-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }
    
    .ad-card-footer {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: stretch;
    }
    
    .ad-actions {
        justify-content: stretch;
    }
    
    .ad-actions .copy-btn {
        flex: 1;
        justify-content: center;
    }
}