/* Reset e configurações básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px 0;
}

/* Container principal */
.signup-container {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 70%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    top: 50%;
    left: 80%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

/* Card de cadastro */
.signup-card {
    position: relative;
    z-index: 2;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 600px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.8s ease-out;
    margin: 20px 0;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header do cadastro */
.signup-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 10px 30px rgba(72, 187, 120, 0.3);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 10px 30px rgba(72, 187, 120, 0.3);
    }
    50% {
        box-shadow: 0 15px 40px rgba(72, 187, 120, 0.5);
    }
    100% {
        box-shadow: 0 10px 30px rgba(72, 187, 120, 0.3);
    }
}

.logo i {
    font-size: 2rem;
    color: white;
}

.signup-header h1 {
    font-size: 1.8rem;
    color: #2d3748;
    margin-bottom: 8px;
    font-weight: 700;
}

.signup-header p {
    color: #718096;
    font-size: 1rem;
}

/* Formulário */
.signup-form {
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.input-container i {
    position: absolute;
    left: 15px;
    color: #718096;
    font-size: 1.1rem;
    z-index: 1;
}

.input-container input {
    width: 100%;
    padding: 15px 15px 15px 50px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    background: white;
    transition: all 0.3s ease;
    outline: none;
}

.input-container input:focus {
    border-color: #48bb78;
    box-shadow: 0 0 0 3px rgba(72, 187, 120, 0.1);
    transform: translateY(-2px);
}

.input-container input::placeholder {
    color: #a0aec0;
}

.toggle-password {
    position: absolute;
    right: 15px;
    background: none;
    border: none;
    color: #718096;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 5px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.toggle-password:hover {
    color: #48bb78;
    background: rgba(72, 187, 120, 0.1);
}

/* Textarea */
.textarea-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-weight: 600;
    color: #4a5568;
    font-size: 0.9rem;
}

textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    background: white;
    transition: all 0.3s ease;
    outline: none;
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

textarea:focus {
    border-color: #48bb78;
    box-shadow: 0 0 0 3px rgba(72, 187, 120, 0.1);
    transform: translateY(-2px);
}

textarea::placeholder {
    color: #a0aec0;
}

/* Opções do formulário */
.form-options {
    margin-bottom: 25px;
}

.terms-agreement {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    font-size: 0.9rem;
    color: #4a5568;
    line-height: 1.4;
}

.terms-agreement input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #e2e8f0;
    border-radius: 4px;
    margin-right: 12px;
    margin-top: 2px;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.terms-agreement input:checked + .checkmark {
    background: #48bb78;
    border-color: #48bb78;
}

.terms-agreement input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: -2px;
    left: 2px;
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* Botão de cadastro */
.signup-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.signup-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.signup-btn:hover::before {
    left: 100%;
}

.signup-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(72, 187, 120, 0.4);
}

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

.signup-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Footer do cadastro */
.signup-footer {
    border-top: 1px solid #e2e8f0;
    padding-top: 20px;
}

.back-to-login {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #f0f0f0;
}

.back-to-login p {
    color: #4a5568;
    font-size: 0.9rem;
}

.back-link {
    color: #48bb78;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: #38a169;
    text-decoration: underline;
}

.info-box {
    background: #f7fafc;
    border-radius: 12px;
    padding: 20px;
    border-left: 4px solid #48bb78;
}

.info-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
}

.info-header i {
    color: #48bb78;
    font-size: 1.1rem;
}

.info-header h4 {
    color: #2d3748;
    font-size: 1rem;
    margin: 0;
}

.info-box ol {
    margin: 0;
    padding-left: 20px;
    color: #4a5568;
    font-size: 0.9rem;
    line-height: 1.6;
}

.info-box li {
    margin-bottom: 5px;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-spinner {
    text-align: center;
    color: white;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-spinner p {
    font-size: 1.1rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .signup-card {
        padding: 30px 20px;
        margin: 10px;
        max-width: 100%;
    }
    
    .signup-header h1 {
        font-size: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

@media (max-width: 480px) {
    .signup-header h1 {
        font-size: 1.3rem;
    }
    
    .signup-card {
        padding: 25px 15px;
    }
    
    .logo {
        width: 70px;
        height: 70px;
        font-size: 1.5rem;
    }
}

/* Animações de erro */
.shake {
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.error-input {
    border-color: #f56565 !important;
    box-shadow: 0 0 0 3px rgba(245, 101, 101, 0.1) !important;
}

/* Feedback visual */
.success-message, .error-message {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.success-message {
    background: #c6f6d5;
    color: #22543d;
    border: 1px solid #9ae6b4;
}

.error-message {
    background: #fed7d7;
    color: #742a2a;
    border: 1px solid #feb2b2;
}