/* =============================================
   Skill Map Lab — Design System
   ============================================= */

/* --- Design Tokens --- */
:root {
    --bg-body: #f9f9f7;
    --bg-white: #ffffff;
    --text-main: #2c2c2c;
    --text-gray: #6e6e6e;
    --text-light: #999;

    /* Accent Palette */
    --col-terra: #e68e6d;
    --col-terra-dark: #d07a5b;
    --col-blue: #7da8c3;
    --col-yellow: #f0cd68;
    --col-green: #94bca0;

    /* Gradients */
    --grad-warm: linear-gradient(135deg, #e68e6d 0%, #f0cd68 100%);
    --grad-soft: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);

    /* Fonts */
    --font-sans: "Noto Sans JP", sans-serif;
    --font-serif: "Shippori Mincho", serif;
    --font-en: "Jost", sans-serif;

    /* UI */
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --header-h: 80px;
    --easing: cubic-bezier(0.22, 1, 0.36, 1);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 15px 40px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 25px 60px rgba(0, 0, 0, 0.12);
}

/* --- Reset --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    font-family: var(--font-sans);
    color: var(--text-main);
    line-height: 1.9;
    background-color: var(--bg-body);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s, color 0.3s;
}

ul {
    list-style: none;
}

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

/* --- Utilities --- */
.container {
    width: 88%;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.section-padding {
    padding: 120px 0;
}

.text-center {
    text-align: center;
}

.bg-white-soft {
    background-color: #fff;
}

/* --- Typography --- */
.heading-group {
    margin-bottom: 4rem;
    position: relative;
}

.heading-en {
    font-family: var(--font-en);
    font-size: 0.85rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--col-terra);
    display: block;
    margin-bottom: 1rem;
    font-weight: 600;
}

.heading-jp {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.8rem);
    line-height: 1.35;
    font-weight: 500;
}

.heading-sub {
    color: var(--text-gray);
    font-size: 0.95rem;
    max-width: 560px;
    margin: 1rem auto 0;
}

/* --- Blur Orbs --- */
.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
    opacity: 0.5;
    animation: floatOrb 12s infinite alternate var(--easing);
    pointer-events: none;
}

@keyframes floatOrb {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(15px, -20px) scale(1.05); }
    100% { transform: translate(-10px, 10px) scale(0.95); }
}

/* --- Buttons --- */
.btn-wrapper {
    margin-top: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 18px 48px;
    border-radius: 100px;
    font-weight: 700;
    letter-spacing: 0.05em;
    transition: transform 0.4s var(--easing), box-shadow 0.4s var(--easing), background-color 0.3s;
    position: relative;
    overflow: hidden;
    font-size: 1rem;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--text-main);
    color: #fff;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -60%;
    width: 40%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transform: skewX(-25deg);
    transition: left 0.6s ease;
}

.btn-primary:hover::after {
    left: 120%;
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

.btn-terra {
    background: var(--grad-warm);
    color: #fff;
    box-shadow: 0 10px 25px rgba(230, 142, 109, 0.3);
}

.btn-terra:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(230, 142, 109, 0.45);
}

.btn-outline {
    border: 2px solid var(--text-main);
    background: transparent;
    color: var(--text-main);
}

.btn-outline:hover {
    background: var(--text-main);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
}

.btn-icon {
    font-size: 1.2em;
    transition: transform 0.3s;
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* --- Animation Classes --- */
.fade-up {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.8s var(--easing), transform 0.8s var(--easing);
}

.fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Scale-in animation */
.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s var(--easing), transform 0.6s var(--easing);
}

.scale-in.is-visible {
    opacity: 1;
    transform: scale(1);
}

/* =============================================
   Header
   ============================================= */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-h);
    display: flex;
    align-items: center;
    z-index: 100;
    transition: background-color 0.4s, box-shadow 0.4s;
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.logo-accent {
    color: var(--col-terra);
}

.nav-pc {
    display: flex;
    gap: 2.5rem;
}

.nav-pc a {
    font-size: 0.9rem;
    font-family: var(--font-en);
    font-weight: 500;
    position: relative;
    padding: 4px 0;
}

.nav-pc a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--col-terra);
    border-radius: 1px;
    transition: width 0.3s var(--easing);
}

.nav-pc a:hover::after {
    width: 100%;
}

.nav-pc a.active {
    color: var(--col-terra);
}

.nav-pc a.active::after {
    width: 100%;
}

/* Nav CTA button */
.nav-pc .nav-cta {
    background: var(--grad-warm);
    color: #fff;
    padding: 10px 22px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 6px 16px rgba(230, 142, 109, 0.25);
    transition: transform 0.3s var(--easing), box-shadow 0.3s;
}

.nav-pc .nav-cta::after {
    display: none;
}

.nav-pc .nav-cta.active {
    color: #fff;
}

.nav-pc .nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(230, 142, 109, 0.35);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 110;
    padding: 8px;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    transition: transform 0.3s var(--easing), opacity 0.3s;
    border-radius: 1px;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* =============================================
   Simple Header (diagnosis form / result pages)
   ============================================= */
.header-simple {
    padding: 20px;
    text-align: center;
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid #eee;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-simple .logo {
    font-size: 1.2rem;
}

/* =============================================
   Glass Cards
   ============================================= */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.9);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: transform 0.4s var(--easing), box-shadow 0.4s var(--easing);
}

.glass-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.icon-box {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    margin-bottom: 1.5rem;
    transition: transform 0.4s var(--easing);
}

.glass-card:hover .icon-box {
    transform: scale(1.08) rotate(-5deg);
}

.icon-svg {
    width: 32px;
    height: 32px;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.stroke-terra { stroke: var(--col-terra); }
.stroke-blue { stroke: var(--col-blue); }
.stroke-yellow { stroke: var(--col-yellow); }
.stroke-green { stroke: var(--col-green); }

.glass-card h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.glass-card p {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.8;
}

/* =============================================
   Footer
   ============================================= */
footer {
    background: var(--text-main);
    color: #fff;
    padding: 80px 0 30px;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    transition: color 0.3s;
}

.footer-nav a:hover {
    color: #fff;
}

.footer-copy {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
    font-family: var(--font-en);
}

/* =============================================
   Floating CTA (Mobile)
   ============================================= */
.floating-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    z-index: 90;
    display: none;
    justify-content: center;
    transform: translateY(100%);
    transition: transform 0.5s var(--easing);
}

.floating-cta.is-visible {
    transform: translateY(0);
}

.floating-cta .btn {
    width: 100%;
    max-width: 360px;
    padding: 16px;
    font-size: 0.95rem;
}

/* =============================================
   Sub Page Hero
   ============================================= */
.sub-hero {
    padding-top: calc(var(--header-h) + 60px);
    padding-bottom: 60px;
    background-color: var(--bg-body);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.sub-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.06;
    filter: grayscale(100%);
    mix-blend-mode: multiply;
    z-index: 0;
}

.page-title-en {
    font-family: var(--font-en);
    font-size: 0.85rem;
    letter-spacing: 0.25em;
    color: var(--col-terra);
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    text-transform: uppercase;
}

.page-title-jp {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
}

.page-desc {
    font-size: 0.95rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 768px) {
    .section-padding {
        padding: 80px 0;
    }

    .heading-group {
        margin-bottom: 3rem;
    }

    .hamburger {
        display: flex;
    }

    .nav-pc {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        height: 100dvh;
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 120px 40px 40px;
        gap: 0;
        transition: right 0.4s var(--easing);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.08);
        z-index: 105;
        display: flex;
    }

    .nav-pc a {
        font-size: 1.1rem;
        padding: 16px 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .nav-pc a::after {
        display: none;
    }

    .nav-pc .nav-cta {
        margin-top: 1.5rem;
        text-align: center;
        border-bottom: none;
        padding: 14px 0;
    }

    .nav-pc.open {
        right: 0;
    }

    .nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.3);
        z-index: 104;
    }

    .nav-overlay.show {
        display: block;
    }

    .floating-cta {
        display: flex;
    }

    .pc-only {
        display: none;
    }
}

@media (min-width: 769px) {
    .sp-only {
        display: none;
    }
}