/*
Theme Name: 久世電機製作所 トピックス
Theme URI: https://okaden21.com/
Author: Antigravity Custom Studio
Description: 株式会社久世電機製作所の公式トピックスサイト用高機能WordPressテーマ。白をベースにした清涼感あふれるモダンデザイン、レスポンシブ対応、Contact Form 7 完全装飾対応。
Version: 1.5.0
License: GNU General Public License v2 or later
Text Domain: kuze-theme
*/

:root {
    --primary-blue: #0073c8;
    --primary-teal: #26bca5;
    --primary-green: #00a651;
    --dark-navy: #060a36;
    --text-main: #1e293b;
    --text-sub: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.08);
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.logo-wrap img {
    width: 320px;
    height: auto;
    display: block;
}

.header-contact-btn {
    background: linear-gradient(135deg, var(--primary-blue), #005bb5);
    color: #ffffff !important;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(0, 115, 200, 0.25);
    transition: var(--transition);
}

.header-contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 115, 200, 0.35);
    background: linear-gradient(135deg, #0082e6, #0067c8);
}

/* Hero Fullwidth */
.hero-fullwidth {
    width: 100%;
    overflow: hidden;
    background-color: var(--bg-light);
    line-height: 0;
}

.hero-fullwidth img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Concept Section */
.concept-section {
    padding: 90px 0 70px;
    text-align: center;
    background-color: var(--bg-white);
}

.concept-badge {
    font-family: 'Outfit', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--primary-teal);
    text-transform: uppercase;
    margin-bottom: 16px;
    display: block;
}

.concept-title {
    font-size: 38px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
    letter-spacing: 4px;
}

.concept-lead {
    font-size: 22px;
    font-weight: 500;
    color: var(--text-main);
    letter-spacing: 2px;
    position: relative;
    display: inline-block;
    padding-bottom: 24px;
}

.concept-lead::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-teal), var(--primary-green));
    border-radius: 3px;
}

.concept-desc {
    max-width: 760px;
    margin: 28px auto 0;
    color: var(--text-sub);
    font-size: 15px;
    line-height: 1.9;
}

/* Topics Section */
.topics-section {
    padding: 50px 0 100px;
    background-color: var(--bg-white);
}

.topics-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 40px;
}

.section-title-wrap h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.5px;
}

.section-title-wrap p {
    font-size: 14px;
    color: var(--text-sub);
    margin-top: 4px;
}

.filter-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tab-btn {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-sub);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active, .tab-btn:hover {
    background-color: var(--primary-blue);
    color: #ffffff;
    border-color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(0, 115, 200, 0.2);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.topic-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.topic-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(0, 115, 200, 0.3);
}

.topic-thumb {
    width: 100%;
    height: 200px;
    position: relative;
    overflow: hidden;
}

.topic-thumb svg {
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease;
}

.topic-card:hover .topic-thumb svg {
    transform: scale(1.06);
}

.category-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 4px;
    color: #ffffff;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    z-index: 2;
}

.badge-event { background: linear-gradient(135deg, #00a651, #00b050); }
.badge-info { background: linear-gradient(135deg, #0073c8, #0088e6); }
.badge-works { background: linear-gradient(135deg, #26bca5, #35cad8); }
.badge-recruit { background: linear-gradient(135deg, #8b5cf6, #ec4899); }

.topic-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.topic-date {
    font-family: 'Outfit', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.topic-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
}

/* Contact Page Styles */
.breadcrumb-wrap {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
    font-size: 13px;
    color: var(--text-sub);
}

.breadcrumb-wrap a:hover {
    color: var(--primary-blue);
}

.page-header {
    background: var(--bg-white);
    padding: 60px 0 40px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 34px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 2px;
}

.page-header p {
    color: var(--text-sub);
    font-size: 15px;
    margin-top: 10px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.tel-contact-card {
    background: linear-gradient(135deg, #060a36, #1e295d);
    color: #ffffff;
    border-radius: var(--radius-md);
    padding: 32px 40px;
    margin: 40px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
}

.tel-info h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.tel-info p {
    font-size: 13px;
    color: #94a3b8;
}

.tel-number-wrap {
    text-align: right;
}

.tel-number {
    font-family: 'Outfit', sans-serif;
    font-size: 32px;
    font-weight: 700;
    color: #38bdf8;
    letter-spacing: 1px;
    line-height: 1.2;
}

.tel-time {
    font-size: 12px;
    color: #cbd5e1;
}

.form-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 48px 56px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 100px;
}

.form-row {
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
}

.form-label-wrap {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    gap: 10px;
}

.form-label {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-main);
}

.badge-req {
    background-color: #ef4444;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.badge-opt {
    background-color: #94a3b8;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 13px 18px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text-main);
    background-color: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    transition: var(--transition);
    outline: none;
    box-sizing: border-box;
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(0, 115, 200, 0.12);
}

textarea.form-control {
    resize: vertical;
    min-height: 160px;
}

.submit-wrap {
    text-align: center;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary-blue), #005bb5);
    color: #ffffff;
    border: none;
    padding: 16px 64px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 115, 200, 0.3);
    transition: var(--transition);
    display: inline-block;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 115, 200, 0.4);
    background: linear-gradient(135deg, #0082e6, #0067c8);
}

/* Contact Form 7 Specific Styling Overrides */
.wpcf7 {
    width: 100%;
}

.wpcf7 form p {
    margin: 0 0 20px 0;
}

.wpcf7-form-control-wrap {
    display: block;
    width: 100%;
}

.wpcf7 input[type="text"],
.wpcf7 input[type="email"],
.wpcf7 input[type="tel"],
.wpcf7 textarea,
.wpcf7 select {
    width: 100%;
    padding: 13px 18px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text-main);
    background-color: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    transition: var(--transition);
    outline: none;
    box-sizing: border-box;
}

.wpcf7 input[type="text"]:focus,
.wpcf7 input[type="email"]:focus,
.wpcf7 input[type="tel"]:focus,
.wpcf7 textarea:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(0, 115, 200, 0.12);
}

.wpcf7 .wpcf7-list-item {
    margin: 0;
    display: inline-block;
}

.wpcf7 .wpcf7-radio {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 4px;
}

.wpcf7 .wpcf7-radio .wpcf7-list-item-label {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.wpcf7 .wpcf7-radio .wpcf7-list-item-label:hover {
    border-color: var(--primary-blue);
    background-color: #f0f9ff;
}

.wpcf7 input[type="submit"].submit-btn,
.wpcf7-submit {
    background: linear-gradient(135deg, var(--primary-blue), #005bb5) !important;
    color: #ffffff !important;
    border: none !important;
    padding: 16px 64px !important;
    border-radius: 50px !important;
    font-size: 16px !important;
    font-weight: 700 !important;
    letter-spacing: 1px !important;
    cursor: pointer !important;
    box-shadow: 0 6px 20px rgba(0, 115, 200, 0.3) !important;
    transition: var(--transition) !important;
    display: inline-block !important;
}

/* Footer */
.site-footer {
    background-color: var(--dark-navy);
    color: #ffffff;
    position: relative;
    padding: 60px 0 30px;
    border-top: 6px solid var(--primary-green);
    overflow: hidden;
}

.footer-accent-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50%;
    height: 6px;
    background-color: var(--primary-green);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.footer-info {
    max-width: 600px;
}

.footer-logo img {
    width: 320px;
    height: auto;
    display: block;
    margin-bottom: 32px;
}

.company-details {
    font-size: 14px;
    line-height: 2.1;
    color: #e2e8f0;
}

.detail-row {
    display: flex;
    margin-bottom: 6px;
}

.detail-label {
    width: 70px;
    font-weight: 500;
    color: #94a3b8;
    letter-spacing: 2px;
}

.detail-val {
    flex: 1;
}

.detail-note {
    font-size: 12px;
    color: #38bdf8;
    margin-left: 8px;
}

.copyright {
    font-family: 'Outfit', sans-serif;
    font-size: 13px;
    color: #94a3b8;
}

@media (max-width: 992px) {
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .topics-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .logo-wrap img, .footer-logo img {
        width: 240px;
    }
    .topics-grid {
        grid-template-columns: 1fr;
    }
    .concept-title {
        font-size: 28px;
    }
    .concept-lead {
        font-size: 18px;
    }
    .form-card {
        padding: 28px 20px;
    }
    .tel-contact-card {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    .tel-number-wrap {
        text-align: center;
    }
    .footer-inner {
        flex-direction: column;
        gap: 40px;
    }
    .footer-right {
        align-items: flex-start;
        align-self: flex-start;
    }
    .footer-accent-bar {
        width: 100%;
    }
}