/* ============================================
   PFC Consulting — Brand Stylesheet
   ============================================ */

:root {
    --pfc-primary: #3369e7;
    --pfc-primary-dark: #1f3f8b;
    --pfc-primary-darker: #142a5e;
    --pfc-accent: #00aaff;
    --pfc-dark: #0d1b2a;
    --pfc-dark-alt: #1b2d45;
    --pfc-text: #2b2b2b;
    --pfc-text-light: #5a6a7a;
    --pfc-bg: #ffffff;
    --pfc-bg-alt: #f4f6f9;
    --pfc-border: #dfe4ea;
    --pfc-white: #ffffff;
    --pfc-success: #27ae60;
    --pfc-radius: 6px;
    --pfc-shadow: 0 2px 20px rgba(13, 27, 42, 0.08);
    --pfc-shadow-lg: 0 8px 40px rgba(13, 27, 42, 0.12);
    --pfc-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Noto Sans JP', 'Noto Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.7;
    color: var(--pfc-text);
    background: var(--pfc-bg);
    -webkit-font-smoothing: antialiased;
    margin: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.25;
    color: var(--pfc-dark);
    margin-bottom: 0.6em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

a {
    color: var(--pfc-primary);
    text-decoration: none;
    transition: color var(--pfc-transition);
}
a:hover { color: var(--pfc-accent); }

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

/* ---- Section spacing ---- */
.section {
    padding: 5rem 0;
}
.section-alt {
    background: var(--pfc-bg-alt);
}
.section-dark {
    background: var(--pfc-dark);
    color: var(--pfc-white);
}
.section-dark h2,
.section-dark h3 {
    color: var(--pfc-white);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3rem;
}
.section-header p {
    color: var(--pfc-text-light);
    font-size: 1.05rem;
}
.section-dark .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--pfc-primary);
    margin-bottom: 0.75rem;
}
.section-dark .section-label {
    color: var(--pfc-accent);
}

/* ---- Navbar ---- */
.navbar-pfc {
    background: var(--pfc-white);
    border-bottom: 1px solid var(--pfc-border);
    padding: 0.75rem 0;
    transition: box-shadow var(--pfc-transition);
    z-index: 1000;
}
.navbar-pfc.scrolled {
    box-shadow: var(--pfc-shadow);
}
.navbar-pfc .navbar-brand img {
    height: 38px;
    width: auto;
}
.navbar-pfc .nav-link {
    color: var(--pfc-text);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem !important;
    transition: color var(--pfc-transition);
}
.navbar-pfc .nav-link:hover,
.navbar-pfc .nav-link.active {
    color: var(--pfc-primary);
}
.lang-switch {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 0.35rem 0.75rem !important;
    border: 1px solid var(--pfc-border);
    border-radius: var(--pfc-radius);
    margin-left: 0.5rem;
}
.lang-switch:hover {
    border-color: var(--pfc-primary);
}

/* ---- Hero ---- */
.hero {
    background: linear-gradient(145deg, var(--pfc-dark) 0%, var(--pfc-dark-alt) 50%, var(--pfc-primary-dark) 100%);
    color: var(--pfc-white);
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(51, 105, 231, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 170, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hero h1 {
    color: var(--pfc-white);
    font-size: clamp(2.2rem, 4.5vw, 3.25rem);
    margin-bottom: 1.25rem;
}
.hero .lead {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 560px;
    line-height: 1.8;
    margin-bottom: 2rem;
}
.hero .accent {
    color: var(--pfc-accent);
}

/* ---- Buttons ---- */
.btn-pfc {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--pfc-primary);
    color: var(--pfc-white);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.75rem 1.75rem;
    border-radius: var(--pfc-radius);
    border: 2px solid var(--pfc-primary);
    transition: all var(--pfc-transition);
    cursor: pointer;
}
.btn-pfc:hover {
    background: var(--pfc-primary-dark);
    border-color: var(--pfc-primary-dark);
    color: var(--pfc-white);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(51, 105, 231, 0.3);
}
.btn-pfc-outline {
    background: transparent;
    color: var(--pfc-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.75rem 1.75rem;
    border-radius: var(--pfc-radius);
    transition: all var(--pfc-transition);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.btn-pfc-outline:hover {
    border-color: var(--pfc-white);
    color: var(--pfc-white);
    background: rgba(255, 255, 255, 0.08);
}

/* ---- Service Cards ---- */
.service-card {
    background: var(--pfc-white);
    border: 1px solid var(--pfc-border);
    border-radius: var(--pfc-radius);
    padding: 2rem;
    height: 100%;
    transition: all var(--pfc-transition);
}
.service-card:hover {
    border-color: var(--pfc-primary);
    box-shadow: var(--pfc-shadow-lg);
    transform: translateY(-3px);
}
.service-card .icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pfc-bg-alt);
    border-radius: var(--pfc-radius);
    margin-bottom: 1.25rem;
    color: var(--pfc-primary);
    font-size: 1.25rem;
}
.service-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}
.service-card p {
    color: var(--pfc-text-light);
    font-size: 0.92rem;
    margin-bottom: 0;
}

/* ---- Stats ---- */
.stat-item {
    text-align: center;
    padding: 1.5rem;
}
.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--pfc-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}
.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.65);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ---- Testimonials ---- */
.testimonial-card {
    background: var(--pfc-white);
    border: 1px solid var(--pfc-border);
    border-radius: var(--pfc-radius);
    padding: 2.25rem;
    height: 100%;
    position: relative;
}
.testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 4rem;
    color: var(--pfc-bg-alt);
    font-family: Georgia, serif;
    line-height: 1;
}
.testimonial-card blockquote {
    font-size: 0.95rem;
    color: var(--pfc-text-light);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}
.testimonial-author {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--pfc-dark);
}
.testimonial-role {
    font-size: 0.8rem;
    color: var(--pfc-text-light);
}

/* ---- Frameworks ---- */
.framework-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}
.framework-list li {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--pfc-radius);
    padding: 0.4rem 1rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.03em;
}

/* ---- Contact Form ---- */
.form-control-pfc {
    border: 1px solid var(--pfc-border);
    border-radius: var(--pfc-radius);
    padding: 0.75rem 1rem;
    font-size: 0.92rem;
    font-family: inherit;
    transition: border-color var(--pfc-transition), box-shadow var(--pfc-transition);
    width: 100%;
    background: var(--pfc-white);
    color: var(--pfc-text);
}
.form-control-pfc:focus {
    outline: none;
    border-color: var(--pfc-primary);
    box-shadow: 0 0 0 3px rgba(51, 105, 231, 0.12);
}
textarea.form-control-pfc {
    min-height: 140px;
    resize: vertical;
}
label.form-label-pfc {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--pfc-dark);
    margin-bottom: 0.4rem;
    display: block;
}

.contact-info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.contact-info-item .ci-icon {
    width: 40px;
    height: 40px;
    background: var(--pfc-bg-alt);
    border-radius: var(--pfc-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pfc-primary);
    flex-shrink: 0;
}
.contact-info-item .ci-text h4 {
    font-size: 0.9rem;
    margin-bottom: 0.15rem;
}
.contact-info-item .ci-text p {
    font-size: 0.85rem;
    color: var(--pfc-text-light);
    margin-bottom: 0;
}

/* ---- Footer ---- */
.footer {
    background: var(--pfc-dark);
    color: rgba(255, 255, 255, 0.6);
    padding: 3.5rem 0 1.5rem;
}
.footer-logo {
    height: 32px;
    margin-bottom: 1rem;
}
.footer p {
    font-size: 0.85rem;
    line-height: 1.7;
}
.footer h5 {
    color: var(--pfc-white);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}
.footer a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    transition: color var(--pfc-transition);
}
.footer a:hover {
    color: var(--pfc-accent);
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 0.5rem;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    font-size: 0.8rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* ---- CTA Section ---- */
.cta-section {
    background: linear-gradient(135deg, var(--pfc-primary) 0%, var(--pfc-primary-dark) 100%);
    color: var(--pfc-white);
    padding: 4rem 0;
    text-align: center;
}
.cta-section h2 { color: var(--pfc-white); }
.cta-section p {
    color: rgba(255, 255, 255, 0.8);
    max-width: 500px;
    margin: 0 auto 1.5rem;
}

/* ---- Privacy / Legal pages ---- */
.legal-content {
    max-width: 780px;
    margin: 0 auto;
    padding: 3rem 1rem;
}
.legal-content h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}
.legal-content .last-update {
    color: var(--pfc-text-light);
    font-size: 0.85rem;
    margin-bottom: 2.5rem;
}
.legal-content h2 {
    font-size: 1.2rem;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--pfc-border);
}
.legal-content p,
.legal-content li {
    font-size: 0.92rem;
    color: var(--pfc-text-light);
}

/* ---- Form messages ---- */
.form-msg {
    padding: 0.75rem 1rem;
    border-radius: var(--pfc-radius);
    font-size: 0.88rem;
    margin-top: 1rem;
    display: none;
}
.form-msg.success {
    background: rgba(39, 174, 96, 0.1);
    color: var(--pfc-success);
    border: 1px solid rgba(39, 174, 96, 0.2);
}
.form-msg.error {
    background: rgba(231, 76, 60, 0.1);
    color: #c0392b;
    border: 1px solid rgba(231, 76, 60, 0.2);
}

/* ---- Animations ---- */
.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 991px) {
    .hero { padding: 6rem 0 4rem; }
    .section { padding: 3.5rem 0; }
    .navbar-pfc .navbar-collapse {
        background: var(--pfc-white);
        padding: 1rem;
        border-top: 1px solid var(--pfc-border);
        margin-top: 0.5rem;
    }
}
@media (max-width: 575px) {
    .hero { padding: 5rem 0 3rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .stat-number { font-size: 2rem; }
}

/* Contact form trap: off screen, out of reach for people */
.form-trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }