/* ===========================================
   About Me Page - Premium Modern Design
   =========================================== */

/* CSS Variables */
.about-page {
    --about-accent: #10b981;
    --about-accent-dark: #059669;
    --about-accent-light: #34d399;
    --about-text: #1a1a1a;
    --about-text-secondary: #666666;
    --about-text-muted: #999999;
    --about-bg: #ffffff;
    --about-bg-alt: #f5f5f5;
    --about-border: #e5e5e5;
    background: var(--about-bg);
}

/* ===========================================
   Hero Section - 大胆なビジュアル
   =========================================== */

.about-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 50%, #1a1a1a 100%);
}

.about-hero__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.about-hero__shapes {
    position: absolute;
    inset: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 20s ease-in-out infinite;
}

.shape--1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, #10b981, #34d399);
    top: -20%;
    right: -10%;
    animation-delay: 0s;
}

.shape--2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #059669, #047857);
    bottom: -10%;
    left: -5%;
    animation-delay: -7s;
}

.shape--3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #34d399, #10b981);
    top: 40%;
    left: 30%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(-30px, -20px) scale(1.02);
    }
}

.about-hero__container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 clamp(24px, 5vw, 60px);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-hero__content {
    color: #ffffff;
}

.about-hero__label {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--about-accent-light);
    background: rgba(16, 185, 129, 0.15);
    padding: 8px 20px;
    border-radius: 30px;
    margin-bottom: 32px;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.about-hero__title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 32px;
    letter-spacing: -0.03em;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s ease forwards;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

.title-line--accent {
    background: linear-gradient(135deg, var(--about-accent-light), var(--about-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.about-hero__lead {
    font-size: clamp(16px, 2vw, 20px);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    max-width: 500px;
}

/* Hero Visual Card */
.about-hero__visual {
    display: flex;
    justify-content: center;
}

.about-hero__card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    min-width: 280px;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.about-hero__card:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.about-hero__avatar {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--about-accent), var(--about-accent-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.3);
    overflow: hidden;
}

.about-hero__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

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

.about-hero__role {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.about-hero__exp {
    display: block;
    font-size: 14px;
    color: var(--about-accent-light);
    font-weight: 500;
}

/* Scroll Indicator */
.about-hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    letter-spacing: 0.1em;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ===========================================
   Section Common Styles
   =========================================== */

.section-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--about-accent), var(--about-accent-light));
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    border-radius: 12px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    color: var(--about-text);
    margin: 0 0 16px;
    letter-spacing: -0.03em;
}

.section-lead {
    font-size: 16px;
    color: var(--about-text-secondary);
    margin: 0;
}

/* ===========================================
   Profile Section
   =========================================== */

.about-profile {
    padding: 120px clamp(24px, 5vw, 60px);
    background: var(--about-bg);
}

.about-profile__container {
    max-width: 1100px;
    margin: 0 auto;
}

.about-profile__header {
    margin-bottom: 60px;
}

.about-profile__content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-profile__text {
    font-size: 17px;
    line-height: 2;
    color: var(--about-text-secondary);
}

.about-profile__text .lead-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--about-text);
    margin-bottom: 28px;
}

.about-profile__text p {
    margin: 0 0 24px;
}

.about-profile__text strong {
    color: var(--about-accent-dark);
    font-weight: 600;
}

.about-profile__quote blockquote {
    margin: 0;
    padding: 40px;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-radius: 20px;
    border-left: 4px solid var(--about-accent);
    position: relative;
}

.about-profile__quote blockquote::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 60px;
    font-family: Georgia, serif;
    color: var(--about-accent);
    opacity: 0.3;
    line-height: 1;
}

.about-profile__quote p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--about-text);
    margin: 0;
    font-weight: 500;
}

.about-profile__quote strong {
    color: var(--about-accent-dark);
}

/* ===========================================
   Career Section - Bento Grid
   =========================================== */

.about-career {
    padding: 120px clamp(24px, 5vw, 60px);
    background: var(--about-bg-alt);
}

.about-career__container {
    max-width: 1100px;
    margin: 0 auto;
}

.about-career__header {
    margin-bottom: 60px;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: auto auto;
    gap: 20px;
}

.bento-card {
    background: var(--about-bg);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid var(--about-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--about-accent), var(--about-accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.bento-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: transparent;
}

.bento-card:hover::before {
    transform: scaleX(1);
}

.bento-card--role {
    grid-column: span 2;
}

.bento-card--experience {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.bento-card--domains {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-card--timeline {
    grid-column: span 2;
}

.bento-card__icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.1));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--about-accent);
    margin-bottom: 20px;
}

.bento-card__label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--about-text-muted);
    margin-bottom: 12px;
}

.bento-card__title {
    font-size: 22px;
    font-weight: 700;
    color: var(--about-text);
    margin: 0 0 8px;
}

.bento-card__sub {
    font-size: 15px;
    color: var(--about-accent);
    font-weight: 600;
    margin: 0;
}

.bento-card__number {
    font-size: 72px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--about-accent), var(--about-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.bento-card__text {
    font-size: 14px;
    color: var(--about-text-secondary);
    margin: 8px 0 0;
}

.bento-card__list {
    list-style: none;
    margin: 16px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    display: inline-block;
    padding: 10px 18px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(16, 185, 129, 0.08));
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--about-accent-dark);
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--about-accent);
    color: #ffffff;
    border-color: var(--about-accent);
}

/* Mini Timeline */
.mini-timeline {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.mini-timeline__item {
    flex: 1;
    padding: 16px;
    background: var(--about-bg-alt);
    border-radius: 12px;
    border-left: 3px solid var(--about-border);
    transition: all 0.3s ease;
}

.mini-timeline__item:hover {
    border-left-color: var(--about-accent);
    background: rgba(16, 185, 129, 0.05);
}

.mini-timeline__item--current {
    border-left-color: var(--about-accent);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(16, 185, 129, 0.08));
}

.mini-timeline__year {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--about-accent);
    margin-bottom: 6px;
}

.mini-timeline__role {
    font-size: 14px;
    font-weight: 600;
    color: var(--about-text);
}

/* ===========================================
   Phases Section - Visual Bars
   =========================================== */

.about-phases {
    padding: 120px clamp(24px, 5vw, 60px);
    background: var(--about-bg);
}

.about-phases__container {
    max-width: 900px;
    margin: 0 auto;
}

.about-phases__header {
    margin-bottom: 60px;
    text-align: center;
}

.about-phases__header .section-label {
    margin: 0 auto 16px;
}

.phases-visual {
    margin-top: 40px;
}

.phase-bar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.phase-bar__item {
    display: grid;
    grid-template-columns: 140px 1fr 80px;
    align-items: center;
    gap: 24px;
    padding: 20px 0;
    border-bottom: 1px solid var(--about-border);
}

.phase-bar__item:last-child {
    border-bottom: none;
}

.phase-bar__name {
    font-size: 16px;
    font-weight: 600;
    color: var(--about-text);
}

.phase-bar__fill {
    height: 12px;
    background: var(--about-bg-alt);
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}

.phase-bar__fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--width, 0%);
    background: linear-gradient(90deg, var(--about-accent), var(--about-accent-light));
    border-radius: 6px;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.phase-bar__years {
    font-size: 14px;
    font-weight: 700;
    color: var(--about-accent);
    text-align: right;
}

/* ===========================================
   Skills Section
   =========================================== */

.about-skills {
    padding: 120px clamp(24px, 5vw, 60px);
    background: linear-gradient(180deg, var(--about-bg-alt) 0%, var(--about-bg) 100%);
}

.about-skills__container {
    max-width: 1100px;
    margin: 0 auto;
}

.about-skills__header {
    margin-bottom: 60px;
}

.skills-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.skill-group {
    background: var(--about-bg);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid var(--about-border);
    transition: all 0.3s ease;
}

.skill-group:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
    border-color: transparent;
}

.skill-group__header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--about-border);
}

.skill-group__icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--about-accent), var(--about-accent-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
}

.skill-group__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--about-text);
    margin: 0;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--about-bg-alt);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--about-text-secondary);
    transition: all 0.3s ease;
}

.skill-tag em {
    font-style: normal;
    font-size: 12px;
    color: var(--about-accent);
    font-weight: 700;
}

.skill-tag--primary {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.1));
    color: var(--about-accent-dark);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* ===========================================
   Strengths Section
   =========================================== */

.about-strengths {
    padding: 120px clamp(24px, 5vw, 60px);
    background: var(--about-bg);
}

.about-strengths__container {
    max-width: 1100px;
    margin: 0 auto;
}

.about-strengths__header {
    margin-bottom: 60px;
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.strength-card {
    background: var(--about-bg);
    border: 1px solid var(--about-border);
    border-radius: 24px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.strength-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.03), rgba(16, 185, 129, 0.03));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.strength-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.08);
    border-color: var(--about-accent);
}

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

.strength-card__number {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--about-accent), var(--about-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    position: relative;
}

.strength-card__title {
    font-size: 22px;
    font-weight: 700;
    color: var(--about-text);
    margin: 0 0 20px;
    position: relative;
}

.strength-card__points {
    list-style: none;
    margin: 0;
    padding: 0;
    position: relative;
}

.strength-card__points li {
    font-size: 15px;
    line-height: 1.8;
    color: var(--about-text-secondary);
    padding-left: 24px;
    margin-bottom: 12px;
    position: relative;
}

.strength-card__points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--about-accent);
    border-radius: 50%;
}

.strength-card--featured {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-color: transparent;
}

.strength-card--featured .strength-card__number {
    background: linear-gradient(135deg, var(--about-accent-light), var(--about-accent));
    -webkit-background-clip: text;
    background-clip: text;
}

.strength-card--featured .strength-card__title {
    color: #ffffff;
}

.strength-card--featured .strength-card__points li {
    color: rgba(255, 255, 255, 0.8);
}

.strength-card--featured .strength-card__points li::before {
    background: var(--about-accent-light);
}

.strength-card__badge {
    position: absolute;
    top: 24px;
    right: 24px;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--about-accent), var(--about-accent-light));
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: 20px;
}

/* ===========================================
   Management Section
   =========================================== */

.about-management {
    padding: 120px clamp(24px, 5vw, 60px);
    background: var(--about-bg-alt);
}

.about-management__container {
    max-width: 1100px;
    margin: 0 auto;
}

.about-management__header {
    margin-bottom: 60px;
}

.management-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.management-overview {
    background: var(--about-bg);
    border-radius: 24px;
    padding: 40px;
    border: 1px solid var(--about-border);
}

.management-overview__title {
    font-size: 22px;
    font-weight: 700;
    color: var(--about-text);
    margin: 0 0 32px;
}

.management-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 32px;
}

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

.management-stat__number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--about-accent);
    line-height: 1;
    margin-bottom: 8px;
}

.management-stat__label {
    font-size: 13px;
    color: var(--about-text-muted);
    font-weight: 500;
}

.management-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.management-list li {
    font-size: 15px;
    line-height: 1.8;
    color: var(--about-text-secondary);
    padding-left: 28px;
    margin-bottom: 12px;
    position: relative;
}

.management-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--about-accent);
    font-weight: 700;
}

.management-highlights {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-radius: 24px;
    padding: 40px;
}

.management-highlights__title {
    font-size: 22px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 32px;
}

.highlight-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.highlight-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(8px);
}

.highlight-item__marker {
    color: var(--about-accent-light);
    font-size: 16px;
}

.highlight-item p {
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

/* ===========================================
   CTA Section
   =========================================== */

.about-cta {
    padding: 120px clamp(24px, 5vw, 60px);
    background: linear-gradient(135deg, var(--about-accent) 0%, var(--about-accent-dark) 100%);
    text-align: center;
}

.about-cta__container {
    max-width: 600px;
    margin: 0 auto;
}

.about-cta__title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: #ffffff;
    margin: 0 0 16px;
}

.about-cta__text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 40px;
}

.about-cta__button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: #ffffff;
    color: var(--about-accent-dark);
    text-decoration: none;
    font-size: 16px;
    font-weight: 700;
    border-radius: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.about-cta__button:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}

.about-cta__button svg {
    transition: transform 0.3s ease;
}

.about-cta__button:hover svg {
    transform: translateX(4px);
}

/* ===========================================
   Responsive Design
   =========================================== */

@media (max-width: 1024px) {
    .about-hero__container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }

    .about-hero__lead {
        margin: 0 auto;
    }

    .about-hero__card {
        transform: none;
    }

    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bento-card--role {
        grid-column: span 2;
    }

    .bento-card--domains {
        grid-column: span 2;
        grid-row: auto;
    }

    .bento-card--timeline {
        grid-column: span 2;
    }

    .about-profile__content {
        grid-template-columns: 1fr;
    }

    .skills-showcase {
        grid-template-columns: 1fr;
    }

    .strengths-grid {
        grid-template-columns: 1fr;
    }

    .management-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .about-hero {
        min-height: auto;
        padding: 120px 0 80px;
    }

    .about-hero__scroll {
        display: none;
    }

    .about-profile,
    .about-career,
    .about-phases,
    .about-skills,
    .about-strengths,
    .about-management,
    .about-cta {
        padding: 80px clamp(20px, 5vw, 40px);
    }

    .bento-grid {
        grid-template-columns: 1fr;
    }

    .bento-card--role,
    .bento-card--domains,
    .bento-card--timeline {
        grid-column: span 1;
    }

    .mini-timeline {
        flex-direction: column;
    }

    .phase-bar__item {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .phase-bar__years {
        text-align: left;
    }

    .management-stats {
        justify-content: center;
    }
}

/* ===========================================
   Animations on Scroll
   =========================================== */

.about-profile,
.about-career,
.about-phases,
.about-skills,
.about-strengths,
.about-management {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-profile.is-visible,
.about-career.is-visible,
.about-phases.is-visible,
.about-skills.is-visible,
.about-strengths.is-visible,
.about-management.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================================
   Small Screen Additional Fixes (480px以下)
   =========================================== */

@media (max-width: 480px) {
    /* ヒーロー */
    .about-hero {
        padding-top: 80px;
    }

    .about-hero__card {
        padding: 28px 24px;
        min-width: 0;
        width: 100%;
    }

    .about-hero__avatar {
        width: 88px;
        height: 88px;
    }

    /* セクションの縦パディング縮小 */
    .about-profile,
    .about-career,
    .about-phases,
    .about-skills,
    .about-strengths,
    .about-management,
    .about-cta {
        padding: 56px 16px;
    }

    /* セクションタイトル */
    .section-title {
        font-size: clamp(22px, 6vw, 28px);
    }

    /* マネジメント統計の折り返し対応 */
    .management-stats {
        flex-wrap: wrap;
        gap: 16px;
    }

    .management-stat {
        min-width: calc(50% - 8px);
    }

    /* プロフィール引用ブロックの最適化 */
    .about-profile__quote blockquote {
        padding: 24px 20px;
    }

    .about-profile__quote blockquote::before {
        font-size: 40px;
        top: 12px;
        left: 12px;
    }

    /* ベントカードの数字を小さく */
    .bento-card__number {
        font-size: 56px;
    }

    /* ベントカードのパディング */
    .bento-card {
        padding: 24px 20px;
    }

    /* ストレングスカードのパディング縮小 */
    .strength-card {
        padding: 28px 20px;
    }

    .strength-card__number {
        font-size: 36px;
    }

    .strength-card__title {
        font-size: 18px;
    }

    /* スキルタグのサイズ調整 */
    .skill-tag {
        font-size: 13px;
        padding: 8px 12px;
    }

    /* タグのサイズ調整 */
    .tag {
        font-size: 13px;
        padding: 8px 14px;
    }

    /* ミニタイムラインを縦並びに */
    .mini-timeline {
        flex-direction: column;
    }

    /* フェーズバー */
    .phase-bar__label {
        font-size: 14px;
    }

    /* CTAセクション */
    .about-cta__title {
        font-size: clamp(22px, 6vw, 28px);
    }

    .about-cta__button {
        width: 100%;
        justify-content: center;
    }

    /* ハイライトアイテムのホバー効果を無効化（タッチ端末対応） */
    .highlight-item:hover {
        transform: none;
    }
}