:root {
    --primary-color: #0066ff;
    --secondary-color: #00a8ff;
    --text-dark: #1a1a1a;
    --text-light: #666;
    --bg-light: #f8f9fa;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Meiryo", "Hiragino Kaku Gothic ProN", "Hiragino Sans", sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    padding-top: 76px;
}

/* Header */
.navbar {
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.25rem;
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark) !important;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero-section {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #020511 100%, #030913 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('./images/hero.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.5;
    z-index: 0;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
    font-size: 3.5rem;
    white-space: nowrap;
    line-height: 1.2;
}

.hero-section p {
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-section .btn {
    animation: fadeInUp 1s ease-out 0.4s both;
    min-height: 44px;
    min-width: 200px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Services Section */
#services {
    background: white;
}

.card {
    border: none;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1) !important;
}

.card-img-top {
    height: 240px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.card:hover .card-img-top {
    transform: scale(1.05);
}

.card-title {
    color: var(--primary-color);
    font-weight: 600;
}

/* About Section */
#about {
    background: var(--bg-light);
}

.table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-dark);
    vertical-align: middle;
}

.table td {
    vertical-align: middle;
}

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

.table a:hover {
    text-decoration: underline;
}

/* Access Section */
#access {
    background: white;
}

/* Contact Section */
#contact {
    background: var(--bg-light);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 600;
    transition: all 0.3s ease;
    min-height: 44px;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    min-height: 44px;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Footer */
footer {
    background-color: #1a1a1a !important;
}

footer a {
    transition: opacity 0.3s ease;
}

footer a:hover {
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 1.8rem;
    }

    .hero-section p {
        font-size: 1rem;
    }

    .table th {
        width: 35% !important;
        font-size: 0.9rem;
    }

    .table td {
        font-size: 0.9rem;
    }

    .card-img-top {
        height: 200px;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 1.5rem;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Section Spacing */
section {
    padding: 5rem 0;
}

@media (max-width: 768px) {
    section {
        padding: 3rem 0;
    }
}

/* Accessibility */
:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Innovative Design Elements */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 37, 69, 0.8) 0%, rgba(24, 16, 46, 0.8) 0%);
    z-index: 0;
}

.card {
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover::before {
    opacity: 1;
}