/* ===========================
   リセットとベーススタイル
   =========================== */

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

:root {
    /* カラーパレット */
    --primary-color: #06C755;
    --primary-dark: #05B04C;
    --primary-light: #7FE5A8;
    --secondary-color: #00B900;
    --accent-color: #FFB800;
    
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --text-light: #999999;
    
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-gray: #F0F2F5;
    
    --border-light: #E5E7EB;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    /* タイポグラフィ */
    --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* スペーシング */
    --section-padding: 100px 0;
    --container-padding: 0 24px;
    
    /* トランジション */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    line-height: 1.7;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ===========================
   ヘッダー
   =========================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 18px;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-image {
    width: 100px;
    height: 50px;
    object-fit: contain;
}

.logo-text {
    color: var(--text-primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
}

.nav a:hover {
    color: var(--primary-color);
}

/* ===========================
   ボタンスタイル
   =========================== */

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* モバイルメニュー */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: white;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: right 0.3s ease;
    padding-top: 80px;
}

.mobile-menu.active {
    right: 0;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.mobile-nav a {
    padding: 15px 20px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.mobile-nav a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.mobile-nav .btn-primary {
    margin-top: 20px;
    text-align: center;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(6, 199, 85, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 199, 85, 0.4);
}

.btn-contact:hover {
    color: white !important;
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    cursor: pointer;
    display: inline-block;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
}

/* ===========================
   ヒーローセクション
   =========================== */

.hero {
    position: relative;
    padding: 140px 0 100px;
    overflow: hidden;
    background: linear-gradient(135deg, #F0FDF4 0%, #FFFFFF 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #FFF9E6 0%, #FFE599 100%);
    color: #B8860B;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 40px;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ヒーローモックアップ */
.hero-mockup {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: #1A1A1A;
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screen-capture {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.line-interface {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.line-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--primary-color);
    color: white;
}

.line-title {
    font-weight: 600;
    font-size: 16px;
}

.line-content {
    flex: 1;
    padding: 20px;
    background: #F0F2F5;
}

.reservation-card {
    background: white;
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow-md);
}

.card-header {
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.calendar-preview {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    justify-content: center;
}

.calendar-date {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--bg-gray);
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.calendar-date.active {
    background: var(--primary-color);
    color: white;
}

.time-slots {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.time-slot {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.time-slot.available {
    background: var(--bg-light);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.time-slot.booked {
    background: var(--bg-gray);
    color: var(--text-light);
    border: 2px solid var(--border-light);
    opacity: 0.5;
}

.reserve-btn {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.reserve-btn:hover {
    background: var(--primary-dark);
}

/* フローティングカード */
.floating-card {
    position: absolute;
    background: white;
    padding: 12px 20px;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 14px;
    animation: float-card 3s ease-in-out infinite;
}

.card-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: -15%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    right: -5%;
    animation-delay: 2s;
}

@keyframes float-card {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
}

/* 背景エフェクト */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
}

.gradient-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    animation: move-gradient 20s ease-in-out infinite;
}

.circle-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-light);
    top: -100px;
    right: -100px;
}

.circle-2 {
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    bottom: -50px;
    left: -50px;
    animation-delay: 5s;
}

.circle-3 {
    width: 250px;
    height: 250px;
    background: var(--primary-color);
    top: 50%;
    left: 30%;
    animation-delay: 10s;
}

@keyframes move-gradient {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(50px, 50px); }
    50% { transform: translate(0, 100px); }
    75% { transform: translate(-50px, 50px); }
}

/* ===========================
   セクション共通スタイル
   =========================== */

section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 900;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
}

.highlight {
    color: var(--primary-color);
    font-weight: 900;
}

/* ===========================
   問題提起セクション
   =========================== */

.problems {
    background: var(--bg-light);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.problem-card {
    background: white;
    padding: 32px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    font-size: 48px;
    margin-bottom: 20px;
    width: 100%;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.problem-icon img {
    width: 100%;
    height: auto;
    max-width: 400px;
    object-fit: contain;
}

.problem-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.problem-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===========================
   ソリューションセクション
   =========================== */

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.solution-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    position: relative;
}

.line-logo-large {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.connection-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    position: relative;
}

.connection-line::after {
    content: '';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid var(--primary-dark);
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
}

.system-box {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.system-icon {
    font-size: 48px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.system-icon img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.system-label {
    font-weight: 700;
    font-size: 16px;
    color: var(--text-primary);
}

.solution-points {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.solution-point {
    display: flex;
    gap: 24px;
}

.point-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 18px;
}

.point-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.point-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===========================
   機能セクション
   =========================== */

.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 56px;
    margin-bottom: 24px;
    display: block;
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-text {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 8px 0;
    padding-left: 28px;
    position: relative;
    font-size: 14px;
    color: var(--text-secondary);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

/* ===========================
   活用事例セクション
   =========================== */

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.use-case-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.use-case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.use-case-image {
    background: linear-gradient(135deg, #F0FDF4 0%, #E6F7ED 100%);
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.use-case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.use-case-image img.img-top-align {
    object-position: top;
}

.use-case-emoji {
    font-size: 80px;
}

.use-case-title {
    font-size: 22px;
    font-weight: 700;
    margin: 24px 32px 12px;
    color: var(--text-primary);
}

.use-case-text {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0 32px 20px;
    line-height: 1.7;
}

.use-case-benefits {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    padding: 0 32px 32px;
}

.benefit-tag {
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}

/* ===========================
   比較セクション
   =========================== */

.comparison {
    background: var(--bg-light);
}

.comparison-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.comparison-table {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table thead th {
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 700;
    text-align: center;
    background: var(--bg-gray);
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-light);
}

.comparison-table thead th.highlight-col {
    background: var(--primary-color);
    color: white;
}

.comparison-table tbody td {
    padding: 16px 24px;
    font-size: 14px;
    text-align: center;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
}

.comparison-table tbody td.feature-name {
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-light);
}

.comparison-table tbody td.highlight-col {
    background: #F0FDF4;
    color: var(--primary-dark);
    font-weight: 600;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

/* ===========================
   料金セクション
   =========================== */

.pricing {
    background: var(--bg-light);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 24px;
    padding: 40px;
    position: relative;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border: 3px solid var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.pricing-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--accent-color) 0%, #FFA500 100%);
    color: white;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
}

.pricing-card.featured .pricing-badge {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.pricing-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.pricing-price {
    margin-bottom: 12px;
}

.price-currency {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-secondary);
}

.price-amount {
    font-size: 56px;
    font-weight: 900;
    color: var(--text-primary);
}

.price-period {
    font-size: 16px;
    color: var(--text-secondary);
}

.pricing-description {
    font-size: 14px;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 15px;
    color: var(--text-primary);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-button {
    width: 100%;
    text-align: center;
    display: block;
}

.pricing-note {
    text-align: center;
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.pricing-footnote {
    text-align: center;
    margin-top: 40px;
}

.pricing-footnote p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 8px 0;
}

/* シフト管理LP誘導 */
.pricing-addon {
    margin-top: 32px;
    background: var(--bg-light);
    border-radius: 20px;
    padding: 32px;
    border: 2px dashed var(--border-light);
    text-align: center;
}

.pricing-addon h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.pricing-addon p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.addon-link {
    color: var(--primary-color);
    font-weight: 700;
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
}

.addon-link:hover {
    text-decoration: underline;
}

/* ===========================
   FAQセクション
   =========================== */

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    cursor: pointer;
    user-select: none;
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}

.faq-toggle {
    font-size: 28px;
    color: var(--primary-color);
    font-weight: 300;
    transition: var(--transition);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 32px 24px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}

/* ===========================
   CTAセクション
   =========================== */

.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 42px;
    font-weight: 900;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.cta .btn-primary {
    background: white;
    color: var(--primary-color);
}

.cta .btn-primary:hover {
    background: var(--bg-light);
}

.cta .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.cta .btn-secondary:hover {
    background: white;
    color: var(--primary-color);
}

.cta-features {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
}

/* ===========================
   フッター
   =========================== */

.footer {
    background: #000000;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand .logo svg rect {
    fill: white;
}

.footer-brand .logo svg path {
    stroke: var(--primary-color);
}

.footer-brand .logo-text {
    color: white;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* ===========================
   レスポンシブデザイン
   =========================== */

@media (max-width: 1024px) {
    .hero-content,
    .solution-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .section-title {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .cta-title {
        font-size: 32px;
    }
    
    .phone-mockup {
        width: 260px;
        height: 520px;
    }
    
    .floating-card {
        display: flex;
        font-size: 11px;
        padding: 8px 14px;
    }
    
    .card-1 {
        top: 8%;
        right: 5%;
    }
    
    .card-2 {
        top: 45%;
        right: 10%;
    }
    
    .card-3 {
        bottom: 12%;
        right: 8%;
    }
    
    .features-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-table thead th,
    .comparison-table tbody td {
        padding: 12px 10px;
        font-size: 12px;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .hero-cta,
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .hero-description,
    .section-description {
        font-size: 16px;
    }
    
    .phone-mockup {
        width: 220px;
        height: 440px;
    }
}