/* =========================================
   株式会社イーエス・テック コーポレートサイト
   メインスタイルシート
   ========================================= */

/* CSS Variables */
:root {
    --primary-color: #0066CC;
    --secondary-color: #FF6B00;
    --accent-color: #00AA44;
    --text-color: #333333;
    --bg-color: #FFFFFF;
    --gray-light: #F5F5F5;
    --gray-medium: #CCCCCC;
    --gray-dark: #666666;
    --header-height: 80px;
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans JP', '游ゴシック', 'Yu Gothic', sans-serif;
    color: var(--text-color);
    line-height: 1.8;
    background-color: var(--bg-color);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.4;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

.section-title h2 {
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--secondary-color);
}

.section-title p {
    color: var(--gray-dark);
    font-size: 1rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo span {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-menu a {
    font-weight: 500;
    transition: var(--transition);
}

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

.header-contact {
    display: flex;
    align-items: center;
    gap: 15px;
}

.phone-number {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.phone-number i {
    color: var(--accent-color);
    margin-right: 5px;
}

.cta-button {
    padding: 12px 30px;
    background: var(--secondary-color);
    color: white;
    border-radius: 30px;
    font-weight: 700;
    transition: var(--transition);
}

.cta-button:hover {
    background: #E65F00;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 107, 0, 0.3);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    margin-top: var(--header-height);
    height: 600px;
    background: linear-gradient(rgba(0, 102, 204, 0.7), rgba(0, 102, 204, 0.7)),
                url('../../images/works/factory-led.jpg') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 30px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

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

.btn-primary:hover {
    background: #E65F00;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 107, 0, 0.4);
}

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

.btn-secondary:hover {
    background: var(--gray-light);
    transform: translateY(-3px);
}

/* Service Cards */
.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: white;
    border-radius: 10px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--gray-dark);
    margin-bottom: 20px;
}

.service-card .btn-link {
    color: var(--secondary-color);
    font-weight: 700;
}

.service-card .btn-link:hover {
    text-decoration: underline;
}

/* Features Section */
.features {
    background: var(--gray-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.feature-item i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.feature-item h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* Works Gallery */
.works-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.work-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: var(--transition);
}

.work-item:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.work-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.work-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 30px 20px 20px;
    color: white;
}

.work-overlay h4 {
    margin-bottom: 5px;
}

.work-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Contact Buttons */
.contact-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.contact-btn {
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.contact-btn i {
    font-size: 1.5rem;
}

.contact-btn.phone {
    background: var(--accent-color);
    color: white;
}

.contact-btn.fax {
    background: var(--gray-dark);
    color: white;
}

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

.contact-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* Form Styles */
.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-color);
}

.form-group label .required {
    color: #E74C3C;
    margin-left: 5px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray-medium);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

/* File Upload */
.file-upload-area {
    border: 2px dashed var(--gray-medium);
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    background: var(--gray-light);
    cursor: pointer;
    transition: var(--transition);
}

.file-upload-area:hover {
    border-color: var(--primary-color);
    background: #E8F4FF;
}

.file-upload-area i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.file-upload-area input[type="file"] {
    display: none;
}

.file-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 20px;
}

.file-preview-item {
    position: relative;
    border-radius: 5px;
    overflow: hidden;
}

.file-preview-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
}

.file-preview-item button {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(231, 76, 60, 0.9);
    color: white;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Checkbox */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 5px;
}

/* Button Submit */
.btn-submit {
    width: 100%;
    padding: 18px;
    background: var(--primary-color);
    color: white;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover:not(:disabled) {
    background: #0052A3;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.3);
}

.btn-submit:disabled {
    background: var(--gray-medium);
    cursor: not-allowed;
}

/* Map */
.map-container {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin: 40px 0;
}

/* Table */
.info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
}

.info-table th,
.info-table td {
    padding: 15px;
    border: 1px solid var(--gray-medium);
    text-align: left;
}

.info-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 700;
    width: 30%;
}

.info-table tr:nth-child(even) {
    background: var(--gray-light);
}

/* Footer */
.footer {
    background: var(--text-color);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: white;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-10 {
    margin-top: 10px;
}

.mt-20 {
    margin-top: 20px;
}

.mt-40 {
    margin-top: 40px;
}

.mb-10 {
    margin-bottom: 10px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mb-40 {
    margin-bottom: 40px;
}

.badge {
    display: inline-block;
    padding: 5px 15px;
    background: var(--secondary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
}

.badge.corporate {
    background: var(--primary-color);
}

.badge.personal {
    background: var(--accent-color);
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

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

/* Alert Messages */
.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background: #D4EDDA;
    color: #155724;
    border: 1px solid #C3E6CB;
}

.alert-error {
    background: #F8D7DA;
    color: #721C24;
    border: 1px solid #F5C6CB;
}

.alert-warning {
    background: #FFF3CD;
    color: #856404;
    border: 1px solid #FFEAA7;
}