/* ============================================
   Invoice Page Styles - Refactored
   ============================================ */

/* ============================================
   CSS Custom Properties (Variables)
   ============================================ */
:root {
    /* Colors */
    --color-primary: #005684; /* Text/Headers */
    --color-btn: #0095E1; /* User requested specific blue */
    --color-btn-hover: #007bbd; /* Natural darken of 0095E1 */
    --color-btn-active: #002266;
    --color-primary-light: #e3f2fd;
    --color-text-primary: #333;
    --color-text-secondary: #666;
    --color-text-muted: #999;
    --color-border: #ddd;
    --color-border-light: #e0e0e0;
    --color-bg-light: #f8f8f8;
    --color-white: #fff;
    
    /* Spacing */
    --spacing-xs: 0.4rem;
    --spacing-sm: 0.8rem;
    --spacing-md: 1.6rem;
    --spacing-lg: 2.4rem;
    --spacing-xl: 3.2rem;
    --spacing-2xl: 4.8rem;
    --spacing-3xl: 6.4rem;
    
    /* Font Sizes */
    --font-size-xs: 1.1rem;
    --font-size-sm: 1.3rem;
    --font-size-base: 1.4rem;
    --font-size-md: 1.5rem;
    --font-size-lg: 1.6rem;
    --font-size-xl: 1.8rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.2rem;
    --font-size-btn: 2.0rem; /* Larger font for buttons */
    
    /* Border Radius */
    --radius-sm: 0.3rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.6rem;
    --radius-btn: 50rem; /* Pill shape for buttons */
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 0.2rem 0.4rem rgba(0, 0, 0, 0.1);
    --shadow-md: 0 0.4rem 0.8rem rgba(0, 68, 204, 0.25);
    --shadow-lg: 0 0.6rem 1.2rem rgba(0, 68, 204, 0.35);
    
    /* Transitions */
    --transition-fast: 0.1s ease-in-out;
    --transition-normal: 0.2s ease;
}

/* ============================================
   Step List - Horizontal Layout (Desktop)
   ============================================ */
.step-list {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    margin: var(--spacing-2xl) 0;
    position: relative;
    flex-wrap: nowrap;
    width: 100%;
    list-style: none;
    padding: 0;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1 1 0;
    min-width: 0;
    position: relative;
    padding: 0;
}

.step-item:not(:last-child) {
    max-width: none;
    min-width: 0;
}



/* ============================================
   Step Components
   ============================================ */

/* Step Number Badge - Desktop */
.step-number {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 2.2rem;
    margin-bottom: var(--spacing-sm);
    flex-shrink: 0;
    line-height: 1.4;
    letter-spacing: 0.1em;
}

/* Step Icon */
.step-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 14rem;
    height: 14rem;
    background: var(--color-primary-light);
    border: none;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
    flex-shrink: 0;
    position: relative;
}

.step-icon .fa {
    font-size: 3.6rem;
    color: var(--color-primary);
}

/* Step Description */
.step-desc {
    margin: 0;
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--color-primary);
    font-weight: 400;
    text-align: center;
    word-break: normal;
    overflow-wrap: break-word;
    white-space: normal;
}

/* Step Connector Line */
.step-connector {
    flex: 0 0 1px;
    width: 1px;
    height: auto;
    align-self: stretch;
    background: var(--color-border);
    margin: 0 var(--spacing-lg);
    min-width: 1px;
}

.step-connector::after {
    display: none;
}

/* ============================================
   Buttons - Primary Action
   ============================================ */
.action-section {
    margin: var(--spacing-2xl) 0;
    text-align: center;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    box-sizing: border-box;
    vertical-align: middle;
    text-align: center;
    text-decoration: none;
    text-transform: none;
    cursor: pointer;
    transition: var(--transition-fast);
    transition-property: color, background-color, border-color, box-shadow, transform;
    
    background: var(--color-btn);
    color: var(--color-white);
    border: 0.2rem solid var(--color-btn);
    padding: var(--spacing-xl) 4%;
    font-size: var(--font-size-lg);
    font-weight: 600;
    line-height: 1.5;
    border-radius: var(--radius-btn);
    min-width: 30%;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-btn-hover);
    border-color: var(--color-btn-hover);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-0.2rem);
}

.btn-primary:active {
    background: var(--color-primary-active);
    border-color: var(--color-primary-active);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
    transform: translateY(0);
}

.btn-primary:focus {
    outline: 0.3rem solid rgba(0, 86, 132, 0.5);
    outline-offset: 0.2rem;
}

.btn-primary:focus:not(:focus-visible) {
    outline: none;
}

.btn-primary:focus-visible {
    outline: 0.3rem solid rgba(0, 86, 132, 0.5);
    outline-offset: 0.2rem;
}

.btn-primary .fa {
    font-size: 3.0rem; /* 2x size */
    flex-shrink: 0;
}

/* Hide auto-generated icons */
.btn-primary::before,
.btn-primary::after,
.download-btn::before,
.download-btn::after {
    display: none !important;
    content: none !important;
}

.btn-primary .fa-external-link {
    display: none !important;
    font-size: 2.2rem;
    opacity: 0.9;
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.btn-text {
    flex: 0 1 auto; /* Don't grow, keep content centered */
    text-align: center;
}

/* ============================================
   Download Buttons Grid
   ============================================ */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(28%, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    box-sizing: border-box;
    vertical-align: middle;
    text-align: center;
    text-decoration: none;
    text-transform: none;
    cursor: pointer;
    transition: var(--transition-fast);
    transition-property: color, background-color, border-color, box-shadow, transform;
    
    background: var(--color-white);
    color: var(--color-btn);
    border: 0.2rem solid var(--color-btn);
    padding: var(--spacing-lg) 2.4% !important; /* Override global link styles */
    background-image: none !important; /* Cancel global excel icon */
    font-size: var(--font-size-md);
    font-weight: 600;
    line-height: 1.5;
    border-radius: var(--radius-btn);
    box-shadow: var(--shadow-sm);
}

.download-btn:hover {
    background: var(--color-btn); /* Match border color */
    color: var(--color-white);
    border-color: var(--color-btn);
    box-shadow: var(--shadow-md);
    transform: translateY(-0.2rem);
}

.download-btn:active {
    background: var(--color-primary-active);
    border-color: var(--color-primary-active);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
    transform: translateY(0);
}

.download-btn:focus {
    outline: 0.3rem solid rgba(0, 86, 132, 0.5);
    outline-offset: 0.2rem;
}

.download-btn:focus:not(:focus-visible) {
    outline: none;
}

.download-btn:focus-visible {
    outline: 0.3rem solid rgba(0, 86, 132, 0.5);
    outline-offset: 0.2rem;
}

.download-btn .fa {
    font-size: 2.5rem; /* 70% of 3.6rem approx */
    flex-shrink: 0;
}

.download-btn .fa-external-link {
    display: none !important;
    font-size: 1.1rem;
    opacity: 0.8;
    margin-left: auto;
}

.download-btn .btn-text {
    flex: 0 1 auto;
    text-align: center;
}

/* ============================================
   Info Boxes
   ============================================ */
.info-box {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-light);
    border-left: 0.3rem solid #ccc;
    border-radius: var(--radius-sm);
}

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

.info-box li {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.info-box li:last-child {
    margin-bottom: 0;
}

/* ============================================
   Notice Box
   ============================================ */
.notice-box {
    background: var(--color-bg-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-left: 0.3rem solid var(--color-text-muted);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-3xl);
}

.notice-heading {
    font-size: var(--font-size-lg);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.notice-box ul {
    margin: 0;
    padding: 0;
}

.notice-box li {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.7;
}

/* ============================================
   Warning Box (Red Alert Box)
   ============================================ */
.warning-box {
    background: #fff5f5;
    padding: var(--spacing-lg) var(--spacing-xl);
    border: 0.2rem solid #d32f2f;
    border-radius: var(--radius-md);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.warning-heading {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-sm);
    color: #d32f2f;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.warning-heading::before {
    content: "⚠";
    font-size: var(--font-size-2xl);
}

.warning-box ul {
    margin: 0;
    padding-left: 0;
    list-style: none;
}

.warning-box li {
    color: #333;
    font-size: var(--font-size-base);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.warning-box li:last-child {
    margin-bottom: 0;
}

/* 赤文字クラス */
.text-red {
    color: #d32f2f;
    font-weight: 500;
}

/* ============================================
   Section Headings
   ============================================ */
.section-heading {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-primary);
    margin: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: left;
    letter-spacing: 0.1em;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--spacing-sm);
}

.section-heading.no-border {
    border-bottom: none;
    padding-bottom: 0;
}

.box-heading {
    background: var(--color-primary);
    color: #fff !important;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-xl);
    font-weight: 500;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: left !important;
}

.note-small {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: var(--spacing-md) 0 var(--spacing-lg);
    line-height: 1.6;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-heading {
    text-align: center;
    font-size: var(--font-size-3xl);
    font-weight: 400;
    padding-bottom: var(--spacing-lg);
    border-bottom: 0.2rem solid var(--color-primary);
    margin: var(--spacing-3xl) 0 var(--spacing-2xl);
    color: var(--color-text-primary);
    letter-spacing: 0.1em;
}

.contact-box {
    background: var(--color-bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    margin: var(--spacing-xl) 0;
    font-style: normal;
}

.company-name {
    font-size: var(--font-size-2xl);
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.contact-dept {
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    color: var(--color-text-primary);
    font-size: var(--font-size-md);
}

.contact-box a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.contact-box a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* Contact Info - Definition List */
.contact-info {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-xs) var(--spacing-md);
    margin: 0;
    font-size: var(--font-size-md);
}

.contact-info dt {
    font-weight: 500;
    color: var(--color-text-primary);
    margin: 0;
}

.contact-info dd {
    margin: 0;
    color: var(--color-text-primary);
}

.contact-info a {
    color: var(--color-primary);
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

/* ============================================
   Divider
   ============================================ */
.content-divider {
    border: 0;
    border-top: 0.1rem solid #ccc;
    margin: var(--spacing-2xl) 0;
}

/* ============================================
   Responsive Design - Tablet
   ============================================ */
@media (max-width: 1024px) and (min-width: 768px) {
    .step-item {
        flex: 1 1 0;
        min-width: 0;
        max-width: none;
        padding: 0 var(--spacing-sm);
    }

    .step-icon {
        width: 10rem;
        height: 10rem;
        padding-bottom: 0;
    }

    .step-icon .fa {
        font-size: 3rem;
    }

    .step-number {
        font-size: 1.8rem;
    }

    .step-desc {
        font-size: 1.4rem;
    }

    .step-connector {
        width: 1px;
        margin: 0 var(--spacing-sm);
    }
}

/* ============================================
   Responsive Design - Mobile
   ============================================ */
@media (max-width: 767px) {
    /* Step List - Vertical Layout */
    .step-list {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-lg);
        margin: var(--spacing-xl) 0;
    }

    /* Step Item - Horizontal Layout (Icon + Content) */
    .step-item {
        display: grid;
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto;
        grid-template-areas:
            "icon number"
            "icon desc";
        column-gap: var(--spacing-md);
        row-gap: var(--spacing-xs);
        align-items: start;
        width: 100%;
        padding: 0;
    }

    /* Icon - Left Column */
    .step-icon {
        grid-area: icon;
        width: 6rem;
        height: 6rem;
        margin-bottom: 0;
        flex-shrink: 0;
        align-self: center;
    }

    .step-icon .fa {
        font-size: 2.4rem;
    }

    /* Step Number - Right Top */
    .step-number {
        grid-area: number;
        font-size: var(--font-size-md);
        margin-bottom: 0;
        align-self: end;
    }

    /* Step Description - Right Bottom */
    .step-desc {
        grid-area: desc;
        text-align: left;
        font-size: var(--font-size-md);
        margin: 0;
        align-self: start;
    }

    /* Hide Connector */
    .step-connector {
        display: none;
    }

    /* Button Responsive */
    .btn-primary {
        width: 100%;
        min-width: auto;
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-md);
    }

    .download-grid {
        grid-template-columns: 1fr;
    }

    .download-btn {
        padding: var(--spacing-xl) var(--spacing-lg) !important;
        font-size: var(--font-size-base);
    }
}

.fix-pc-16px {
    font-size: 16px !important;
}

/* ============================================
   Accessibility - Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .step-item,
    .step-icon,
    .step-connector,
    .btn-primary,
    .download-btn {
        transition: none;
    }

    .btn-primary:hover,
    .download-btn:hover {
        transform: none;
    }
}
/* ============================================
   Utility Classes
   ============================================ */
.br-pc {
    display: inline;
}

@media (max-width: 767px) {
    .br-pc {
        display: none;
    }
}

/* PC Spacing Override - User Request */
@media (min-width: 768px) {
    .mb60.rec_cont {
        margin-bottom: 10rem !important; /* 100px */
    }
}

/* ============================================
   Text Indent - 1 Character
   ============================================ */
.indent-1char {
    display: inline-block;
    padding-left: 1em; /* 1文字分のインデント */
}