/* ============================================================
   i-Nucleus Pricing Form — Styles
   ============================================================ */

:root {
    --inp-primary: #1a365d;
    --inp-primary-light: #2b6cb0;
    --inp-accent: #3182ce;
    --inp-success: #38a169;
    --inp-bg: #f7fafc;
    --inp-card: #ffffff;
    --inp-border: #e2e8f0;
    --inp-text: #2d3748;
    --inp-text-muted: #718096;
    --inp-radius: 10px;
    --inp-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    --inp-shadow-lg: 0 4px 20px rgba(0,0,0,0.1);
    --inp-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Wrapper */
.inp-wrapper {
    max-width: 720px;
    margin: 32px auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--inp-text);
    line-height: 1.6;
    position: relative;
}

.inp-form {
    position: relative;
}

/* ── Steps ── */
.inp-step {
    display: none;
    background: var(--inp-card);
    border-radius: var(--inp-radius);
    border: 1px solid var(--inp-border);
    box-shadow: var(--inp-shadow);
    padding: 32px;
    animation: inp-fadeIn 0.35s ease;
}

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

@keyframes inp-fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Step Header ── */
.inp-step-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--inp-border);
}

.inp-step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--inp-primary);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}

.inp-step-header h3 {
    margin: 0;
    font-size: 20px;
    color: var(--inp-primary);
    font-weight: 700;
}

.inp-step-header p {
    margin: 4px 0 0;
    color: var(--inp-text-muted);
    font-size: 14px;
}

/* ── Fields ── */
.inp-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

@media (max-width: 600px) {
    .inp-fields { grid-template-columns: 1fr; }
    .inp-step { padding: 20px; }
}

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

.inp-field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--inp-text);
    margin-bottom: 6px;
}

.inp-field label small {
    font-weight: 400;
    color: var(--inp-text-muted);
}

.inp-req {
    color: #e53e3e;
}

.inp-field input,
.inp-field textarea,
.inp-field select {
    padding: 10px 14px;
    border: 1.5px solid var(--inp-border);
    border-radius: 8px;
    font-size: 15px;
    color: var(--inp-text);
    background: #fff;
    transition: border-color var(--inp-transition), box-shadow var(--inp-transition);
    font-family: inherit;
}

.inp-field input:focus,
.inp-field textarea:focus {
    outline: none;
    border-color: var(--inp-accent);
    box-shadow: 0 0 0 3px rgba(49,130,206,0.15);
}

.inp-field input.inp-error {
    border-color: #e53e3e;
    box-shadow: 0 0 0 3px rgba(229,62,62,0.12);
}

.inp-field textarea {
    resize: vertical;
    min-height: 80px;
}

/* ── Categories ── */
.inp-category {
    border: 1px solid var(--inp-border);
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: box-shadow var(--inp-transition);
}

.inp-category:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.inp-category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: linear-gradient(135deg, #f7fafc, #edf2f7);
    cursor: pointer;
    user-select: none;
    transition: background var(--inp-transition);
}

.inp-category-header:hover {
    background: linear-gradient(135deg, #edf2f7, #e2e8f0);
}

.inp-category-header h4 {
    margin: 0;
    font-size: 15px;
    font-weight: 700;
    color: var(--inp-primary);
    flex: 1;
}

.inp-category-count {
    font-size: 12px;
    color: var(--inp-text-muted);
    background: #fff;
    padding: 2px 10px;
    border-radius: 20px;
    font-weight: 600;
    border: 1px solid var(--inp-border);
}

.inp-chevron {
    transition: transform 0.3s ease;
    color: var(--inp-text-muted);
}

.inp-category.inp-open .inp-chevron {
    transform: rotate(180deg);
}

.inp-category-body {
    display: none;
    padding: 8px;
    background: #fafbfc;
}

.inp-category.inp-open .inp-category-body {
    display: block;
}

/* ── Feature Checkboxes ── */
.inp-feature {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 14px;
    margin: 2px 0;
    border-radius: 8px;
    cursor: pointer;
    transition: background var(--inp-transition);
}

.inp-feature:hover {
    background: #fff;
}

.inp-feature--required {
    background: #f0fff4;
    border: 1px solid #c6f6d5;
}

.inp-feature-check {
    position: relative;
    flex-shrink: 0;
    margin-top: 2px;
}

.inp-feature-check input[type="checkbox"],
.inp-addon input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.inp-checkmark {
    display: block;
    width: 20px;
    height: 20px;
    border: 2px solid #cbd5e0;
    border-radius: 5px;
    background: #fff;
    transition: all var(--inp-transition);
    position: relative;
}

.inp-feature-check input:checked ~ .inp-checkmark,
.inp-addon input:checked ~ .inp-checkmark {
    background: var(--inp-accent);
    border-color: var(--inp-accent);
}

.inp-feature-check input:checked ~ .inp-checkmark::after,
.inp-addon input:checked ~ .inp-checkmark::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Green checkmark only for required/included fields */
.inp-feature--required .inp-feature-check input:disabled ~ .inp-checkmark {
    background: var(--inp-success-light);
    border-color: var(--inp-success-light);
    opacity: 0.8;
}

/* Grey checkmark for dependency-disabled fields (NOT required ones) */
.inp-feature:not(.inp-feature--required) .inp-feature-check input:disabled ~ .inp-checkmark {
    background: #dce3ec;
    border-color: #c5cdd8;
    opacity: 1;
}

.inp-feature-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.inp-feature-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--inp-text);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.inp-feature-desc {
    font-size: 12px;
    color: var(--inp-text-muted);
    line-height: 1.4;
}

/* ── Badges ── */
.inp-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.inp-badge--included {
    background: #c6f6d5;
    color: #22543d;
}

.inp-badge--premium {
    background: #fefcbf;
    color: #975a16;
}

/* ── Addons Section ── */
.inp-addons-section {
    margin: 24px 0;
    padding: 16px;
    background: var(--inp-bg);
    border-radius: 8px;
    border: 1px solid var(--inp-border);
}

.inp-addons-section h4 {
    margin: 0 0 12px;
    font-size: 14px;
    color: var(--inp-primary);
}

.inp-addon {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    cursor: pointer;
    font-size: 14px;
    position: relative;
}

.inp-addon .inp-checkmark {
    flex-shrink: 0;
}

/* ── Navigation ── */
.inp-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--inp-border);
}

.inp-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--inp-transition);
    font-family: inherit;
}

.inp-btn--next,
.inp-btn--submit {
    background: var(--inp-primary);
    color: #fff;
}

.inp-btn--next:hover,
.inp-btn--submit:hover {
    background: var(--inp-primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26,54,93,0.3);
}

.inp-btn--back {
    background: transparent;
    color: var(--inp-text-muted);
    border: 1.5px solid var(--inp-border);
}

.inp-btn--back:hover {
    color: var(--inp-text);
    border-color: #cbd5e0;
    background: #f7fafc;
}

.inp-btn--submit {
    background: var(--inp-success);
    padding: 14px 32px;
    font-size: 16px;
}

.inp-btn--submit:hover {
    background: #2f855a;
    box-shadow: 0 4px 12px rgba(56,161,105,0.35);
}

.inp-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ── Progress ── */
.inp-progress {
    margin-top: 24px;
    position: relative;
}

.inp-progress-bar {
    height: 3px;
    background: var(--inp-accent);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.inp-progress-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    top: -12px;
    padding: 0 40px;
}

.inp-progress-dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #e2e8f0;
    color: var(--inp-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    transition: all var(--inp-transition);
}

.inp-progress-dot--active {
    background: var(--inp-accent);
    color: #fff;
}

.inp-progress-dot--done {
    background: var(--inp-success);
    color: #fff;
}

/* ── Success ── */
.inp-step--success {
    text-align: center;
    padding: 60px 32px;
}

.inp-success-icon {
    margin-bottom: 20px;
    color: var(--inp-success);
}

.inp-success-icon svg {
    width: 72px;
    height: 72px;
}

.inp-step--success h3 {
    font-size: 22px;
    color: var(--inp-primary);
    margin: 0 0 8px;
}

.inp-step--success p {
    color: var(--inp-text-muted);
    font-size: 15px;
    margin: 0;
}

/* ── Loading Overlay ── */
.inp-loading {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.92);
    border-radius: var(--inp-radius);
    z-index: 100;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.inp-loading.inp-active {
    display: flex;
}

.inp-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--inp-border);
    border-top-color: var(--inp-accent);
    border-radius: 50%;
    animation: inp-spin 0.7s linear infinite;
}

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

.inp-loading p {
    color: var(--inp-text-muted);
    font-size: 14px;
    font-weight: 500;
    margin: 0;
}

/* ── Error Toast ── */
.inp-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #e53e3e;
    color: #fff;
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(229,62,62,0.35);
    z-index: 9999;
    animation: inp-slideIn 0.3s ease;
}

@keyframes inp-slideIn {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}