/* form.css */

.form-body {
    background-color: var(--color-bg-base);
    min-height: 100vh;
}
.form-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header & Progress */
.form-header {
    background: white;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.header-inner {
    padding-top: var(--spacing-16);
    padding-bottom: var(--spacing-16);
    display: flex;
    flex-direction: column;
    align-items: center;
}
.header-logo {
    height: 24px;
    width: auto;
    margin-bottom: var(--spacing-16);
}
.progress-bar-container {
    width: 100%;
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    overflow: hidden;
}
.progress-bar {
    height: 100%;
    background: var(--color-primary);
    width: 0%;
    transition: width 0.3s ease;
}

/* Main Layout */
.form-main {
    flex: 1;
    padding: var(--spacing-32) 0 6rem; /* Extra bottom padding for floating bar */
}
.form-container {
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
    padding: 0 var(--spacing-24);
}

/* Step Transitions */
.step-layer {
    display: none;
    animation: fadeIn 0.3s ease;
}
.step-layer.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Typography Overrides for Form */
.step-title {
    font-size: clamp(1.4rem, 5vw, 1.8rem);
    font-weight: 900;
    color: var(--color-text-title);
    line-height: 1.3;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}
.step-subtitle {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    font-weight: 600;
    margin-bottom: var(--spacing-32);
    line-height: 1.5;
}

/* Cards */
.intro-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-32) var(--spacing-24);
    text-align: center;
}
.intro-desc {
    margin-bottom: var(--spacing-32);
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-text-body);
}

/* Question Blocks */
.q-block {
    margin-bottom: var(--spacing-32);
}
.q-title {
    font-size: 1.0625rem;
    font-weight: 800;
    margin-bottom: var(--spacing-16);
    color: var(--color-text-title);
}
.options-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}
@media (min-width: 600px) {
    .options-grid { grid-template-columns: 1fr 1fr; }
}

/* Selectable Cards (Radio / Checkbox) */
.opt-card {
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--color-text-title);
    user-select: none;
}
.opt-card:hover {
    border-color: #cbd5e1;
    background: #f8fafc;
}
.opt-card.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    color: var(--color-primary-hover);
}
.opt-card input {
    display: none;
}
.opt-card span {
    display: inline-block;
    width: 100%;
}
.opt-card.check-opt.selected span::before {
    content: "✓ ";
    font-weight: 900;
}

/* Navigation Buttons */
.nav-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-48);
    gap: 1rem;
}
.nav-actions.single {
    justify-content: center;
}
.nav-actions.vertical-actions {
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}
.link-btn {
    background: none; 
    border: none; 
    color: var(--color-text-muted); 
    text-decoration: underline; 
    text-underline-offset: 4px; 
    font-weight: 600; 
    cursor: pointer; 
    font-size: 0.9375rem;
    padding: 0.5rem;
    transition: color 0.2s;
}
.link-btn:hover { color: var(--color-text-title); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

/* Utilities */
.hidden { display: none !important; }
.mt-4 { margin-top: var(--spacing-24); }
.mb-4 { margin-bottom: var(--spacing-24); }

/* Recommend Box */
.recommend-box {
    background: white; 
    border: 3px solid var(--color-text-title); 
    border-radius: var(--radius-lg); 
    padding: var(--spacing-32); 
    text-align: center; 
    margin-bottom: var(--spacing-32);
}
.recommend-badge {
    display: inline-block; 
    background: var(--color-primary); 
    color: white; 
    font-weight: 800; 
    font-size: 0.8125rem; 
    padding: 0.25rem 0.75rem; 
    border-radius: var(--radius-pill); 
    margin-bottom: 1rem;
}
.recommend-name {
    font-size: clamp(1.25rem, 5vw, 1.5rem); 
    font-weight: 900; 
    color: var(--color-text-title);
    letter-spacing: -0.01em;
}

/* Pack Items */
.pack-section-title {
    font-size: 1.0625rem;
    font-weight: 800;
    color: var(--color-text-title);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-border);
}
.pack-item {
    background: white; 
    border: 2px solid var(--color-border); 
    border-radius: var(--radius-md); 
    padding: 1.25rem; 
    margin-bottom: 0.75rem; 
    display: flex; 
    flex-direction: column; 
    cursor: pointer; 
    transition: all 0.2s;
    user-select: none;
}
.pack-item:hover { border-color: #cbd5e1; }
.pack-item.selected { 
    border-color: var(--color-primary); 
    background: #f0fdf4; 
}
.pack-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    margin-bottom: 0.5rem; 
}
.pack-name { 
    font-weight: 800; 
    font-size: 1rem;
    color: var(--color-text-title); 
}
.pack-item.selected .pack-name::before {
    content: "✓ ";
    color: var(--color-primary);
}
.pack-price { 
    font-weight: 800; 
    color: var(--color-primary); 
    font-size: 0.9375rem;
}
.pack-desc { 
    font-size: 0.8125rem; 
    color: var(--color-text-body); 
    line-height: 1.6; 
    font-weight: 600;
}

/* Floating Price Bar */
.mini-price-bar {
    position: fixed; 
    bottom: 0; 
    left: 0; 
    right: 0; 
    background: var(--color-text-title); 
    color: white; 
    padding: 1rem 1.5rem; 
    text-align: center; 
    font-weight: 600; 
    z-index: 90; 
    transform: translateY(100%); 
    transition: transform 0.3s;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
}
.mini-price-bar.visible { transform: translateY(0); }
.mini-price-bar strong { 
    font-size: 1.3rem; 
    margin-left: 0.5rem; 
    font-weight: 900; 
    color: var(--color-primary-light);
}

/* Review Box */
.review-box {
    background: white; 
    border-radius: var(--radius-lg); 
    border: 1px solid var(--color-border);
    padding: var(--spacing-24); 
    margin-bottom: var(--spacing-16);
}
.review-item { margin-bottom: 1.25rem; }
.review-label { 
    display: block; 
    font-size: 0.8125rem; 
    font-weight: 700; 
    color: var(--color-text-muted); 
    margin-bottom: 0.35rem; 
}
.review-value { font-weight: 700; color: var(--color-text-title); font-size: 0.9375rem; line-height: 1.5; }
.review-divider { border: none; height: 1px; background: var(--color-border); margin: var(--spacing-24) 0; }
.review-divider.dashed { border-top: 1px dashed var(--color-border); background: none; }

.calc-row { display: flex; justify-content: space-between; margin-bottom: 0.6rem; font-weight: 600; font-size: 0.875rem; color: var(--color-text-body); }
.calc-row.base { color: var(--color-text-title); }
.calc-row.total-row { 
    font-size: 1rem; 
    font-weight: 800; 
    color: var(--color-text-title); 
    align-items: baseline; 
    margin-top: 1rem; 
}
.total-big { font-size: 1.8rem; color: var(--color-primary); margin-left: 0.5rem; }
.calc-row.monthly-total-row { color: #d97706; font-weight: 800; }
.review-note { font-size: 0.8125rem; color: var(--color-text-muted); text-align: center; margin-bottom: var(--spacing-32); line-height: 1.6; }

/* Contact Form */
.field-item { margin-bottom: 1.25rem; }
.field-item label { 
    display: block; 
    font-weight: 700; 
    font-size: 0.9375rem; 
    margin-bottom: 0.5rem; 
    color: var(--color-text-title); 
}
.req { background: #ef4444; color: white;     font-size: 0.65rem; padding: 0.15rem 0.4rem; border-radius: 4px; vertical-align: middle; margin-left: 0.4rem; font-weight: 800; }
.opt { background: var(--color-border); color: var(--color-text-muted); font-size: 0.65rem; padding: 0.15rem 0.4rem; border-radius: 4px; vertical-align: middle; margin-left: 0.4rem; font-weight: 800; }
.field-item input[type="text"], .field-item input[type="email"], .field-item input[type="tel"], .field-item textarea {
    width: 100%; border: 2px solid var(--color-border); border-radius: var(--radius-md); padding: 0.75rem; font-size: 1rem; font-family: inherit; transition: border 0.2s, background-color 0.2s; background: #f8fafc;
}
.field-item input:focus, .field-item textarea:focus { outline: none; border-color: var(--color-primary); background: white; }
.error-msg {
    display: block; color: #ef4444; font-size: 0.8125rem; font-weight: 700; margin-top: 0.4rem;
}
.error-msg:empty { display: none; }
.field-item.has-error input { border-color: #ef4444; background: #fef2f2; }
.radio-inline { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.radio-inline label { font-weight: 600; display: flex; align-items: center; gap: 0.4rem; cursor: pointer; color: var(--color-text-body); font-size: 0.9375rem; }

.success-icon {
    width: 64px; height: 64px; background: var(--color-primary); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; font-weight: 900; margin: 0 auto var(--spacing-24);
}