@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

:root {
    /* Paleta de cores Instagram */
    --ig-gradient-start: #f09433;
    --ig-gradient-mid: #e6683c;
    --ig-gradient-end: #dc2743;
    --ig-purple: #cc2366;
    --ig-pink: #bc1888;
    --ig-blue: #405de6;
    
    /* Cores neutras */
    --bg-primary: #fafafa;
    --bg-secondary: #ffffff;
    --text-primary: #262626;
    --text-secondary: #8e8e8e;
    --border-color: #dbdbdb;
    
    /* Cores de ação */
    --success: #00c853;
    --error: #ff1744;
    --warning: #ff9800;
    
    /* Sombras Instagram */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* Bordas */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Transições */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-attachment: fixed;
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 500px;
    margin: 0 auto;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.header {
    background: linear-gradient(135deg, var(--ig-gradient-start) 0%, var(--ig-gradient-mid) 50%, var(--ig-gradient-end) 75%, var(--ig-purple) 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.header h1 {
    font-size: 1.75rem;
    margin: 0;
    font-weight: 700;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.5px;
}

.content {
    padding: 40px 30px;
}

.message {
    font-size: 1.15rem;
    text-align: center;
    margin-bottom: 35px;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.7;
}

.message strong {
    color: var(--ig-pink);
    font-weight: 700;
}

.actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 30px;
    flex-wrap: wrap;
}

.actions form {
    display: flex;
    gap: 12px;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 140px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    letter-spacing: 0.3px;
}

.btn span {
    font-size: 1.2em;
    display: inline-block;
    transition: var(--transition);
}

.btn:hover span {
    transform: scale(1.1);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #00e676 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--error) 0%, #ff5252 100%);
    color: white;
}

.btn-primary {
    background: linear-gradient(135deg, var(--ig-blue) 0%, var(--ig-purple) 100%);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #757575 0%, #616161 100%);
    color: white;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
    width: 100%;
    max-width: 100%;
    min-width: auto;
}

.task-box {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: var(--radius-md);
    padding: 30px;
    margin: 25px 0;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.task-premium {
    background: linear-gradient(135deg, var(--ig-gradient-start) 0%, var(--ig-gradient-mid) 25%, var(--ig-gradient-end) 50%, var(--ig-purple) 75%, var(--ig-pink) 100%);
    color: white;
    border: none;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.task-premium::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.task-box h2 {
    margin-bottom: 20px;
    font-size: 1.5rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.task-box p {
    margin-bottom: 18px;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

.instruction {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 25px 0;
    text-align: center;
    color: var(--text-primary);
}

.task-premium .instruction {
    color: white;
}

.form-group {
    margin-bottom: 25px;
}

.input-pix {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-secondary);
    font-family: inherit;
    color: var(--text-primary);
}

.input-pix:focus {
    outline: none;
    border-color: var(--ig-pink);
    box-shadow: 0 0 0 4px rgba(188, 24, 136, 0.1);
    background: white;
}

.input-pix::placeholder {
    color: var(--text-secondary);
}

.pix-form {
    margin-top: 25px;
}

.pix-info {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 25px;
    border-radius: var(--radius-md);
    margin-bottom: 25px;
    border: 1px solid var(--border-color);
}

.pix-display {
    background: white;
    padding: 18px;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    word-break: break-all;
    margin-top: 12px;
    border: 2px solid var(--ig-pink);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.payment-info {
    text-align: center;
    margin: 25px 0;
}

.amount {
    color: var(--success);
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--success) 0%, #00e676 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.amount-large {
    color: var(--success);
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--success) 0%, #00e676 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.task-premium .amount-large {
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.status {
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-weight: 600;
    display: inline-block;
    font-size: 0.9rem;
}

.status.processing {
    background: linear-gradient(135deg, var(--warning) 0%, #ffb74d 100%);
    color: white;
}

.status.paid {
    background: linear-gradient(135deg, var(--success) 0%, #00e676 100%);
    color: white;
}

.status-info {
    margin-top: 12px;
}

.confirmation-box {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 30px;
    border-radius: var(--radius-md);
    text-align: center;
    margin-top: 25px;
    border: 1px solid var(--border-color);
}

.success-icon {
    font-size: 5rem;
    text-align: center;
    margin: 25px 0;
    animation: bounce 1.5s ease-in-out infinite;
    display: block;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-15px) scale(1.05);
    }
}

.congratulations {
    font-size: 1.4rem;
    text-align: center;
    margin: 25px 0;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.6;
}

.next-task {
    margin-top: 35px;
    text-align: center;
}

.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 25px;
    font-weight: 500;
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
}

.alert-info {
    background: linear-gradient(135deg, #e3f2fd 0%, #ffffff 100%);
    color: #1976d2;
    border-left-color: var(--ig-blue);
}

.alert-error {
    background: linear-gradient(135deg, #ffebee 0%, #ffffff 100%);
    color: #c62828;
    border-left-color: var(--error);
}

.task-instructions {
    margin: 25px 0;
}

.task-instructions ol {
    margin-left: 25px;
    margin-top: 20px;
}

.task-instructions li {
    margin-bottom: 15px;
    line-height: 1.9;
    font-size: 1.05rem;
}

.instagram-link {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: var(--radius-md);
    margin: 25px 0;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.task-premium .instagram-link {
    background: rgba(255, 255, 255, 0.15);
}

.btn-instagram {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(45deg, var(--ig-gradient-start) 0%, var(--ig-gradient-mid) 25%, var(--ig-gradient-end) 50%, var(--ig-purple) 75%, var(--ig-pink) 100%);
    color: white;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    margin-top: 15px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    font-size: 1rem;
}

.btn-instagram::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-instagram:hover::before {
    width: 300px;
    height: 300px;
}

.btn-instagram:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.note {
    font-size: 0.9rem;
    opacity: 0.85;
    margin-top: 12px;
}

.upload-section {
    margin-top: 35px;
}

.upload-form {
    margin-top: 25px;
}

.file-label {
    display: block;
    width: 100%;
    padding: 40px 30px;
    border: 3px dashed var(--border-color);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: linear-gradient(135deg, #fafafa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.file-label::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(188, 24, 136, 0.1), transparent);
    transition: left 0.5s;
}

.file-label:hover::before {
    left: 100%;
}

.file-label:hover {
    border-color: var(--ig-pink);
    background: linear-gradient(135deg, #fff5f9 0%, #ffffff 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.file-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.file-text {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.file-input {
    display: none;
}

.image-preview {
    margin: 25px 0;
    text-align: center;
}

.preview-img {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    margin-top: 20px;
    border: 3px solid var(--border-color);
}

.payment-status {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: var(--radius-md);
    margin: 25px 0;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.wait-message {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: var(--radius-md);
    margin: 25px 0;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.success-card {
    background: linear-gradient(135deg, var(--ig-gradient-start) 0%, var(--ig-gradient-mid) 25%, var(--ig-gradient-end) 50%, var(--ig-purple) 75%, var(--ig-pink) 100%);
    color: white;
    border: none;
}

.success-card .header {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
}

.success-card .content {
    color: white;
}

.success-card .message {
    color: white;
}

.success-card .congratulations {
    color: white;
}

/* Responsividade */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .container {
        max-width: 100%;
    }
    
    .header {
        padding: 35px 25px;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .content {
        padding: 30px 25px;
    }
    
    .message {
        font-size: 1.05rem;
    }
    
    .btn {
        width: 100%;
        min-width: auto;
    }
    
    .actions form {
        flex-direction: column;
        width: 100%;
    }
    
    .amount-large {
        font-size: 2rem;
    }
    
    .task-box {
        padding: 25px 20px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .header {
        padding: 30px 20px;
    }
    
    .header h1 {
        font-size: 1.3rem;
    }
    
    .content {
        padding: 25px 20px;
    }
    
    .task-box {
        padding: 20px 15px;
    }
    
    .btn-large {
        padding: 14px 20px;
        font-size: 1rem;
    }
    
    .file-label {
        padding: 30px 20px;
    }
}

/* Animações adicionais */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}