/* KOTOBUKI UK - Custom Styles */

:root {
    --ktb-primary: #2c3e50;
    --ktb-secondary: #e74c3c;
    --ktb-accent: #3498db;
    --ktb-light: #ecf0f1;
    --ktb-dark: #1a252f;
}

/* Landing Background */
.ktbuk-hero--fixed-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background-image: url('images/ktbuk-general-landing_background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

@media (max-width: 767px) {
    .ktbuk-hero--fixed-bg {
        background-image: url('images/ktbuk-general-landing_background--r916.jpg');
    }
}

/* Background overlay for better readability */
.ktbuk-hero--fixed-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: rgba(0, 0, 0, 0.3);
}


/* Hero Section */
.hero-section {
    /* background: linear-gradient(135deg, var(--ktb-primary) 0%, var(--ktb-dark) 100%); */
    color: white;
    padding: 6rem 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* Navigation */
.navbar-kotobuki {
    background-color: transparent;
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

/* === ORIGINAL SCROLL-BASED NAVBAR (commented for easy revert) ===
.navbar-kotobuki.scrolled {
    backdrop-filter: blur(10px);
    background-color: rgba(44, 62, 80, 0.95);
}
=== END ORIGINAL === */

/* === SECTION-BASED NAVBAR STYLES === */
.navbar-kotobuki.nav-style-transparent {
    background-color: transparent;
    backdrop-filter: none;
}

.navbar-kotobuki.nav-style-solid {
    background-color: rgba(44, 62, 80, 0.95);
    backdrop-filter: none;
}

.navbar-kotobuki.nav-style-blur {
    background-color: transparent;
    backdrop-filter: blur(10px);
}
/* === END SECTION-BASED === */

.navbar-kotobuki .nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-kotobuki .nav-link:hover {
    color: white;
}

/* Language Switcher */
.language-switcher .btn {
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
}

.language-switcher .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.5);
}

/* Sections */
.section-padding {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--ktb-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
}

/* Cards */
.feature-card {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    font-size: 3rem;
    color: var(--ktb-accent);
    margin-bottom: 1.5rem;
}

/* Footer */
.footer {
    background-color: var(--ktb-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 3.5rem 0 2rem;
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
}

.footer a:hover,
.footer a:focus {
    color: white;
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.footer-brand:hover,
.footer-brand:focus {
    color: white;
    opacity: 0.9;
}

.footer-social a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.2s ease, transform 0.2s ease;
    display: inline-block;
}

.footer-social a:hover,
.footer-social a:focus {
    color: white;
    transform: translateY(-2px);
}

.footer h2 {
    color: white;
    letter-spacing: 0.05em;
}

.footer address {
    font-style: normal;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-padding {
        padding: 3rem 0;
    }
}