/* ==========================================================================
   CIO Letter Detail Page - Additional Styles
   Extends case-detail.css for letter-specific elements
   ========================================================================== */

/* Loading State */
.cio-letter-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    gap: 1rem;
    color: var(--secondary-dark-gray);
}

.cio-letter-loading__spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--secondary-medium-gray);
    border-top-color: var(--primary-blue-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.cio-letter-loading p {
    font-size: 1rem;
}

/* Error State */
.cio-letter-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    gap: 1rem;
    text-align: center;
    padding: 2rem;
}

.cio-letter-error i {
    font-size: 3rem;
    color: var(--secondary-medium-gray);
}

.cio-letter-error p {
    font-size: 1.125rem;
    color: var(--secondary-dark-gray);
}

/* ===== Override: pullquote/comparison 옆 테두리 제거 ===== */
.article__pullquote {
    border-left: none;
    background: linear-gradient(135deg, var(--secondary-light-gray) 0%, #eef2f7 100%);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    position: relative;
}

.article__pullquote::before {
    content: '\201C';
    position: absolute;
    top: 0.75rem;
    left: 1.25rem;
    font-size: 3rem;
    color: var(--primary-blue-accent);
    opacity: 0.3;
    line-height: 1;
    font-family: Georgia, serif;
}

.article__pullquote p {
    font-style: normal;
    padding-left: 1.5rem;
}

.article__comparison {
    border-left: none;
    background: var(--secondary-light-gray);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.article__comparison-item--before {
    text-decoration: line-through;
    opacity: 0.6;
}

.article__comparison-item--after {
    color: var(--primary-blue-accent);
}

/* PDF Download Lead Capture */
.cio-letter-pdf {
    padding: 2rem 0;
    max-width: 760px;
    margin: 0 auto;
}

.cio-letter-pdf__card {
    background: var(--secondary-light-gray);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
}

.cio-letter-pdf__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-deep-navy);
    margin-bottom: 0.5rem;
}

.cio-letter-pdf__title i {
    color: #dc2626;
    margin-right: 0.5rem;
}

.cio-letter-pdf__desc {
    font-size: 0.9375rem;
    color: var(--secondary-dark-gray);
    margin-bottom: 1.25rem;
}

.cio-letter-pdf__fields {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    justify-content: center;
}

.cio-letter-pdf__input {
    padding: 0.75rem 1rem;
    border: 1px solid var(--secondary-medium-gray);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    width: 220px;
    font-family: inherit;
}

.cio-letter-pdf__input:focus {
    outline: none;
    border-color: var(--primary-blue-accent);
}

.cio-letter-pdf__consent {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--secondary-dark-gray);
    margin-bottom: 1rem;
    cursor: pointer;
}

.cio-letter-pdf__consent input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-blue-accent);
}

.cio-letter-pdf__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    background: var(--primary-blue-accent);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    font-family: inherit;
}

.cio-letter-pdf__btn:hover {
    background: var(--primary-deep-navy);
}

.cio-letter-pdf__complete {
    color: #10b981;
    font-size: 1rem;
}

.cio-letter-pdf__complete i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/* Letter Navigation (Prev/Next) */
.cio-letter-nav {
    padding: 2rem 0;
    border-top: 1px solid var(--secondary-medium-gray);
    border-bottom: 1px solid var(--secondary-medium-gray);
    margin: 0 auto;
    max-width: 760px;
}

.cio-letter-nav__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.cio-letter-nav__item {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    padding: 1rem 1.25rem;
    border-radius: 8px;
    text-decoration: none;
    transition: background 0.2s;
}

.cio-letter-nav__item:hover {
    background: var(--secondary-light-gray);
}

.cio-letter-nav__item--next {
    text-align: right;
}

.cio-letter-nav__label {
    font-size: 0.8125rem;
    color: var(--primary-blue-accent);
    font-weight: 500;
}

.cio-letter-nav__title {
    font-size: 0.9375rem;
    color: var(--primary-deep-navy);
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Responsive */
@media screen and (max-width: 768px) {
    .cio-letter-pdf__fields {
        flex-direction: column;
        align-items: center;
    }
    .cio-letter-pdf__input {
        width: 100%;
        max-width: 300px;
    }

    .cio-letter-nav {
        padding: 1.5rem 1rem;
    }

    .cio-letter-nav__grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .cio-letter-nav__item--next {
        text-align: left;
    }
}