/* ==========================================================================
   User Registration Form - Frontend Styles
   Minimal & Modern Design
   ========================================================================== */

.urf-wrapper {
    --urf-primary: #2563eb;
    --urf-primary-hover: #1d4ed8;
    --urf-primary-light: #dbeafe;
    --urf-text: #0f172a;
    --urf-text-muted: #64748b;
    --urf-border: #e2e8f0;
    --urf-border-focus: #2563eb;
    --urf-bg: #ffffff;
    --urf-bg-soft: #f8fafc;
    --urf-error: #ef4444;
    --urf-success: #10b981;
    --urf-radius: 12px;
    --urf-radius-sm: 8px;
    --urf-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 20px rgba(0,0,0,0.06);

    direction: rtl;
    font-family: 'IRANSans', 'Vazirmatn', 'Vazir', Tahoma, sans-serif;
    color: var(--urf-text);
    max-width: 560px;
    margin: 24px auto;
    padding: 0 16px;
    box-sizing: border-box;
}


/* Mobile Full Width */
@media (max-width: 768px) {

    .urf-wrapper {
        width: 100%;
        max-width: 100%;
        margin: 0;
        padding: 0;
    }

    .urf-card {
        border-radius: 0;
        padding: 20px 14px;
    }

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

.urf-wrapper *,
.urf-wrapper *::before,
.urf-wrapper *::after {
    box-sizing: border-box;
}

.urf-card {
    background: var(--urf-bg);
    border-radius: var(--urf-radius);
    box-shadow: var(--urf-shadow);
    padding: 32px 28px;
    border: 1px solid var(--urf-border);
}

/* Header */
.urf-header {
    text-align: center;
    margin-bottom: 28px;
}

.urf-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    background: var(--urf-primary-light);
    color: var(--urf-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.urf-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 6px;
    color: var(--urf-text);
}

.urf-subtitle {
    font-size: 14px;
    color: var(--urf-text-muted);
    margin: 0;
}

/* Form */
.urf-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.urf-field {
    display: flex;
    flex-direction: column;
}

.urf-field label {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--urf-text);
}

.urf-required {
    color: var(--urf-error);
    font-weight: bold;
}

.urf-input-wrap {
    position: relative;
}

.urf-form input[type="text"],
.urf-form input[type="tel"],
.urf-form input[type="number"],
.urf-form select {
    width: 100%;
    height: 46px;
    padding: 0 14px;
    font-size: 14px;
    font-family: inherit;
    color: var(--urf-text);
    background: var(--urf-bg-soft);
    border: 1.5px solid var(--urf-border);
    border-radius: var(--urf-radius-sm);
    outline: none;
    transition: all 0.2s ease;
    appearance: none;
}

.urf-form input::placeholder {
    color: #94a3b8;
}

.urf-form input:focus,
.urf-form select:focus {
    border-color: var(--urf-border-focus);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}

.urf-form input.urf-invalid,
.urf-form select.urf-invalid {
    border-color: var(--urf-error);
    background: #fef2f2;
}

.urf-form select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 14px center;
    padding-left: 40px;
}

.urf-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.urf-error {
    font-size: 12px;
    color: var(--urf-error);
    margin-top: 6px;
    min-height: 14px;
    display: block;
}

/* BMI Preview */
.urf-bmi-preview {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 100%);
    border: 1px solid #c7d2fe;
    border-radius: var(--urf-radius-sm);
    padding: 18px;
    margin: 4px 0;
    animation: urf-fade-in 0.3s ease;
}

.urf-bmi-label {
    font-size: 13px;
    color: var(--urf-text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

.urf-bmi-value {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 14px;
}

#urf-bmi-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--urf-text);
    font-variant-numeric: tabular-nums;
}

.urf-bmi-badge {
    font-size: 13px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 999px;
    color: #fff;
    background: var(--urf-text-muted);
}

.urf-bmi-bar {
    position: relative;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(to left,
        #3b82f6 0%, #3b82f6 25%,
        #10b981 25%, #10b981 50%,
        #f59e0b 50%, #f59e0b 75%,
        #ef4444 75%, #ef4444 100%
    );
    overflow: visible;
    margin-bottom: 8px;
}

.urf-bmi-marker {
    position: absolute;
    top: 50%;
    transform: translate(50%, -50%);
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--urf-text);
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    right: 0;
    transition: right 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.urf-bmi-scale {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--urf-text-muted);
    font-weight: 500;
}

/* Button */
.urf-submit-btn {
    width: 100%;
    height: 50px;
    background: var(--urf-primary);
    color: #fff;
    border: none;
    border-radius: var(--urf-radius-sm);
    font-size: 15px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 8px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.urf-submit-btn:hover:not(:disabled) {
    background: var(--urf-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
}

.urf-submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.urf-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.urf-spin {
    animation: urf-spin 1s linear infinite;
}

@keyframes urf-spin {
    to { transform: rotate(360deg); }
}

@keyframes urf-fade-in {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Messages */
.urf-message {
    padding: 14px 16px;
    border-radius: var(--urf-radius-sm);
    font-size: 14px;
    font-weight: 500;
    margin-top: 8px;
    text-align: center;
    animation: urf-fade-in 0.3s ease;
}

.urf-message.success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.urf-message.error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Hide number input arrows */
.urf-form input[type=number]::-webkit-outer-spin-button,
.urf-form input[type=number]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.urf-form input[type=number] {
    -moz-appearance: textfield;
}

/* Responsive */
@media (max-width: 480px) {
    .urf-card {
        padding: 24px 18px;
    }
    .urf-row {
        grid-template-columns: 1fr;
    }
    .urf-title {
        font-size: 19px;
    }
    #urf-bmi-number {
        font-size: 26px;
    }
}