/* Checkout Styles */
.checkout-body {
    background: var(--bg-dark);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    font-family: 'Inter', sans-serif;
}

.checkout-container {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
    width: 100%;
    max-width: 800px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

/* Progress Bar */
.progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin-bottom: 2rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--accent);
    width: 25%; /* initial step 1 */
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
    padding: 0 10px;
}

.step-dot {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.step-dot.active {
    background: rgba(37, 211, 102, 0.1);
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(37, 211, 102, 0.3);
}

.step-dot.completed {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* Form Steps */
.form-step {
    display: none;
    animation: fadeInRight 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.step-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.step-header h2 {
    font-size: clamp(1.4rem, 4vw, 2rem);
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.step-header p {
    color: var(--text-muted);
    font-size: clamp(0.9rem, 2.5vw, 1.1rem);
}

/* Step 1 Info Box */
.info-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}

.info-icon {
    position: absolute;
    top: -20px;
    right: -20px;
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.02);
    transform: rotate(-15deg);
}

.info-box h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.info-box ul {
    list-style: none;
    padding: 0;
}

.info-box ul li {
    margin-bottom: 1.2rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-muted);
    line-height: 1.5;
    font-size: clamp(0.85rem, 2.5vw, 1rem);
}

.info-box ul li i {
    color: var(--accent);
    font-size: 1.2rem;
    margin-top: 3px;
}

.info-box ul li strong {
    color: var(--text-main);
}

/* Form Groups */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
    font-size: clamp(0.85rem, 2.5vw, 1rem);
}

.form-group label .required {
    color: #ef4444;
}

.form-group label .optional {
    color: var(--text-muted);
    font-size: 0.85em;
    font-weight: normal;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

/* Custom Checkbox */
.checkbox-group {
    margin-top: 1.5rem;
    background: rgba(37, 211, 102, 0.05);
    border: 1px dashed rgba(255, 255, 255, 0.2);
    padding: 1.2rem;
    border-radius: 10px;
}

.custom-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    user-select: none;
    font-weight: normal !important;
}

.custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    min-width: 28px;
    width: 28px;
    height: 28px;
    flex: 0 0 28px; /* Previene que se estire o se encoja */
    background-color: rgba(0, 0, 0, 0.5);
    border: 3px solid rgba(255, 255, 255, 0.4);
    border-radius: 6px;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.custom-checkbox:hover input ~ .checkmark {
    background-color: rgba(0, 0, 0, 0.7);
    border-color: var(--accent);
}

.custom-checkbox input:checked ~ .checkmark {
    background-color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(37, 211, 102, 0.4);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.custom-checkbox input:checked ~ .checkmark:after {
    display: block;
    animation: popIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes popIn {
    0% { transform: scale(0) rotate(45deg); opacity: 0; }
    100% { transform: scale(1) rotate(45deg); opacity: 1; }
}

.custom-checkbox .checkmark:after {
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
    margin-top: -3px;
}

.checkbox-text {
    color: var(--text-main);
    font-size: clamp(0.8rem, 2.5vw, 0.95rem);
    line-height: 1.6;
    margin-left: 5px;
}

.checkbox-text .optional {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-style: italic;
}

/* Plans (Step 3) */
.plans-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.plan-card {
    cursor: pointer;
    display: block;
    position: relative;
}

.plan-card input {
    display: none;
}

.plan-content {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
}

.plan-card input:checked + .plan-content {
    border-color: var(--accent);
    background: rgba(37, 211, 102, 0.05);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.2);
}

.plan-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--accent);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.plan-header h3 {
    font-size: 1.2rem;
    color: var(--text-main);
    margin: 0;
}

.plan-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.plan-desc {
    color: var(--text-muted);
    font-size: clamp(0.8rem, 2.5vw, 0.95rem);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

.plan-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
    flex-grow: 1;
}

.plan-features li {
    margin-bottom: 0.8rem;
    font-size: clamp(0.8rem, 2.5vw, 0.95rem);
    color: #e5e7eb;
    display: flex;
    align-items: center;
    gap: 8px;
}

.plan-features li i {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.plan-features li i.text-accent {
    color: var(--accent);
}

.plan-selector {
    text-align: center;
    padding: 0.8rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    font-weight: 600;
    transition: all 0.3s ease;
}

.plan-card input:checked + .plan-content .plan-selector {
    background: var(--accent);
    color: #fff;
}

/* Payment Methods (Step 4) */
.payment-methods {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.payment-card {
    cursor: pointer;
    display: block;
}

.payment-card input {
    display: none;
}

.payment-content {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
}

.payment-icon {
    font-size: 2.5rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.payment-content h3 {
    margin-bottom: 0.5rem;
    font-size: clamp(1rem, 3vw, 1.2rem);
}

.payment-content p {
    color: var(--text-muted);
    font-size: clamp(0.8rem, 2.5vw, 0.9rem);
    line-height: 1.4;
}

.payment-card input:checked + .payment-content {
    border-color: var(--accent);
    background: rgba(37, 211, 102, 0.05);
}

.payment-card input:checked + .payment-content .payment-icon {
    color: var(--accent);
}

.final-message {
    background: rgba(37, 211, 102, 0.1);
    border: 1px dashed var(--accent);
    border-radius: 10px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.final-message i {
    font-size: 2rem;
    color: var(--accent);
}

.final-message p {
    margin: 0;
    color: var(--text-main);
    line-height: 1.5;
}

/* Buttons */
.btn-group {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-group-right {
    display: flex;
    justify-content: flex-end;
    margin-top: 1rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Error States */
.error-input {
    border-color: #ef4444 !important;
    animation: shake 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

/* Responsive */
@media (max-width: 768px) {
    .plans-container, .payment-methods {
        grid-template-columns: 1fr;
    }
    
    .checkout-container {
        padding: 1.5rem;
        border-radius: 15px;
    }
    
    .step-header h2 {
        font-size: 1.5rem;
    }
    
    .btn-group, .btn-group-right {
        flex-direction: column-reverse;
        gap: 1rem;
    }
    
    .btn-group button, .btn-group-right button {
        width: 100%;
        justify-content: center;
        padding: 1.2rem;
        font-size: 1.1rem;
    }

    .form-group input, .form-group textarea {
        font-size: 16px; /* Prevents iOS auto-zoom */
        padding: 1.2rem;
    }

    .checkbox-text {
        font-size: 0.95rem;
    }

    .plan-content, .payment-content {
        padding: 1.5rem;
    }

    .step-dot {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }
}