:root {
    --aodamo-indigo: #2d4f7c;
    --aodamo-cyan: #4a9b9f;
    --aodamo-light-cyan: #7ec4c8;
    --aodamo-deep-blue: #1a3a52;
    --aodamo-pale: #e8f4f5;
    --aodamo-ink: #0f1419;
    --aodamo-mist: rgba(78, 155, 159, 0.08);
    --accent-orange: #e8a75f;
}

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

body {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    background: var(--aodamo-pale);
    color: var(--aodamo-ink);
    overflow-x: hidden;
    line-height: 1.8;
}


/* Ripple background effect */
.ripple-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.9;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    border: 1.6px solid rgba(74, 155, 159, 0.78);
    animation: ripple-expand 8s ease-out infinite;
}

.ripple:nth-child(1) {
    top: 20%;
    left: 15%;
    width: 300px;
    height: 300px;
    animation-delay: 0s;
}

.ripple:nth-child(2) {
    top: 60%;
    right: 10%;
    width: 400px;
    height: 400px;
    animation-delay: 2s;
}

.ripple:nth-child(3) {
    bottom: 15%;
    left: 50%;
    width: 250px;
    height: 250px;
    animation-delay: 4s;
}

@keyframes ripple-expand {
    0% {
        transform: scale(0.3);
        opacity: 0;
    }
    50% {
        opacity: 0.65;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}


/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 0.8rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 rgba(78, 155, 159, 0.1);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 50px;
    width: auto;
    display: block;
    transform: scale(1.30);
    transform-origin: left center;
}

.logo-text {
    font-family: "Montserrat", sans-serif;
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    color: var(--aodamo-indigo);
}

nav {
    display: flex;
    gap: 2.5rem;
}

nav a {
    font-family: "Montserrat", sans-serif;
    font-size: 0.9rem;
    color: var(--aodamo-indigo);
    text-decoration: none;
    letter-spacing: 0.1em;
    position: relative;
    transition: color 0.3s;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--aodamo-cyan);
    transition: width 0.4s ease;
}

nav a:hover {
    color: var(--aodamo-cyan);
}

nav a:hover::after {
    width: 100%;
}


/* Hero Section */
.hero {
    position: relative;
    z-index: 1;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 0 10%;
    background: linear-gradient(135deg, 
        var(--aodamo-pale) 0%, 
        rgba(74, 155, 159, 0.1) 50%, 
        var(--aodamo-pale) 100%);
}

.hero-title {
    font-family: "Montserrat", sans-serif;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 500;
    color: var(--aodamo-indigo);
    line-height: 1.2;
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
    opacity: 0;
    animation: fadeInUp 1.2s ease forwards;
}

.hero-subtitle {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--aodamo-cyan);
    font-weight: 400;
    letter-spacing: 0.2em;
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeInUp 1.2s ease 0.3s forwards;
}

.hero-description {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 1.1rem;
    color: var(--aodamo-deep-blue);
    max-width: 600px;
    line-height: 2;
    opacity: 0;
    animation: fadeInUp 1.2s ease 0.6s forwards;
}

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


/* Sections */
section {
    position: relative;
    z-index: 1;
    padding: 4.5rem 10%;
    max-width: 1400px;
    margin: 0 auto;
}

#about {
    z-index: 2;
}

.section-title {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--aodamo-cyan);
    font-weight: 400;
    letter-spacing: 0.2em;
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeInUp 1.2s ease 0.3s forwards;
}

.section-subtitle {
    font-family: "Montserrat", sans-serif;
    font-size: 0.95rem;
    color: var(--aodamo-indigo);
    letter-spacing: 0.3em;
    margin-bottom: 4rem;
    text-transform: uppercase;
    font-weight: 400;
}


/* Subtle section contrast */
.section-contrast {
    background: rgba(11, 18, 32, 0.025);
    border-top: 1px solid rgba(11, 18, 32, 0.06);
    border-bottom: 1px solid rgba(11, 18, 32, 0.06);
    backdrop-filter: blur(2px);
}


/* Override contrast */
.contrast.section-contrast {
    background: rgba(11, 18, 32, 0.025);
}


/* ABOUT US Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-text {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 1.05rem;
    line-height: 2.2;
    color: var(--aodamo-deep-blue);
}

.about-visual {
    position: relative;
    z-index: 2;
    height: 400px;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.about-visual::before {
    content: '';
    position: absolute;
    inset: -18px;
    background: url('../images/handshake.png') center/cover no-repeat;
    filter: blur(18px) brightness(1.05);
    transform: scale(1.08);
    z-index: 0;
    -webkit-mask-image: radial-gradient(circle at center, rgba(0,0,0,0) 55%, rgba(0,0,0,1) 88%);
    mask-image: radial-gradient(circle at center, rgba(0,0,0,0) 55%, rgba(0,0,0,1) 88%);
}

.about-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background-image:
        linear-gradient(135deg, rgba(74, 155, 159, 0.20), rgba(45, 79, 124, 0.15)),
        url('../images/handshake.png');
    background-size: cover, cover;
    background-position: center, center;
    background-repeat: no-repeat, no-repeat;
}


/* collaboration - OVERVIEW Section */
.collaboration-overview-visual {
    position: relative;
    z-index: 2;
    height: 400px;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.collaboration-overview-visual::before {
    content: '';
    position: absolute;
    inset: -18px;
    background: url('../images/collaboration/partner.png') center/cover no-repeat;
    filter: blur(18px) brightness(1.05);
    transform: scale(1.08);
    z-index: 0;
    -webkit-mask-image: radial-gradient(circle at center, rgba(0,0,0,0) 55%, rgba(0,0,0,1) 88%);
    mask-image: radial-gradient(circle at center, rgba(0,0,0,0) 55%, rgba(0,0,0,1) 88%);
}

.collaboration-overview-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background-image:
        linear-gradient(135deg, rgba(74, 155, 159, 0.20), rgba(45, 79, 124, 0.15)),
        url('../images/collaboration/partner.png');
    background-size: cover, cover;
    background-position: center, center;
    background-repeat: no-repeat, no-repeat;
}


/* SERVICES Section */
.services {
    position: relative;
    z-index: 1;
    background: rgba(11, 18, 32, 0.025);
    overflow: visible;
}

.services > .section-subtitle,
.services > .section-title,
.services > .services-grid {
    position: relative;
    z-index: 1;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.services-item {
    position: relative;
    z-index: 2;
    background: rgba(255, 255, 255, 0.92);
    padding: 2.5rem;
    border-radius: 2px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.services-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.services-number {
    font-family: "Montserrat", sans-serif;
    font-size: 2.5rem;
    color: var(--aodamo-light-cyan);
    font-weight: 400;
    margin-bottom: 1rem;
    line-height: 1;
}

.services-title {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 1.25rem;
    color: var(--aodamo-indigo);
    margin-bottom: 1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.services-description {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 0.95rem;
    color: var(--aodamo-deep-blue);
    line-height: 1.9;
    opacity: 0.85;
}


/* PROVIDE SERVICES Section */
.provide-services {
    position: relative;
    z-index: 1;
    background: rgba(11, 18, 32, 0.025);
    overflow: visible;
}

.provide-services > .section-subtitle,
.provide-services > .section-title,
.provide-services > .provide-services-grid {
    position: relative;
    z-index: 1;
}

.provide-services-grid {
    display: grid;
    gap: 3rem;
}

.provide-services-item {
    position: relative;
    z-index: 2;
    background: rgba(255, 255, 255, 0.92);
    padding: 2.5rem;
    border-radius: 2px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.provide-services-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.provide-services-number {
    font-family: "Montserrat", sans-serif;
    font-size: 2.5rem;
    color: var(--aodamo-light-cyan);
    font-weight: 400;
    margin-bottom: 1rem;
    line-height: 1;
}

.provide-services-title {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 1.25rem;
    color: var(--aodamo-indigo);
    margin-bottom: 1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.provide-services-description {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 0.95rem;
    color: var(--aodamo-deep-blue);
    line-height: 1.9;
    opacity: 0.85;
}

.provide-services-sub-title {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 0.95rem;
    color: var(--aodamo-indigo);
    margin-bottom: 1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    margin-left: 1.5rem; 
    margin-right: 1.5rem; 
    padding-left: 1.2rem;
    padding-right: 1.2rem;
    border-bottom: 1px solid var(--aodamo-indigo); 
}


/* PROVIDE SERVICES list */
.provide-services-list {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    list-style: none;
    padding: 0;
    margin: 0;
    padding-left: 1.2rem;
    padding-right: 2.7rem;
}

.provide-services-list li {
    position: relative;
    padding-left: 0.85rem;
}

.provide-services-list li::before {
    content: "-";
    position: absolute;
    left: 0;
}

.provide-services-sub-list {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    list-style: none;
    padding: 0;
    margin: 0;
    padding-left: 3.2rem;
    padding-right: 2.7rem;
}

.provide-services-sub-list li {
    position: relative;
    padding-left: 0.85rem;
}

.provide-services-sub-list li::before {
    content: "-";
    position: absolute;
    left: 0;
}

.provide-services-sub-list .services-label {
    display: inline-block;
    min-width: 22em;
}

.provide-services-sub-list .services-detail {
    display: inline;
}

/* PROVIDE SERVICES Additional Section */
.provide-services-additional-title {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 0.95rem;
    color: var(--aodamo-indigo);
    margin-bottom: 1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    margin-left: 1.5rem; 
    margin-right: 1.5rem; 
    padding-left: 1.2rem;
    padding-right: 1.2rem;
    border-bottom: 2px solid var(--accent-orange); 
}

.provide-services-additional-description {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 0.95rem;
    color: var(--aodamo-deep-blue);
    line-height: 1.9;
    opacity: 0.85;
    margin-left: 1.5rem; 
    padding-left: 1.2rem;
    padding-right: 2.7rem;
}


/* CONTACT Section */
.contact {
    position: relative;
    z-index: 1;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 400px;
}

.contact-left {
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, rgba(45, 79, 124, 0.92), rgba(74, 155, 159, 0.92));
    padding: 4.5rem 10%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: white;
}

.contact-left .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.contact-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 2rem;
}

.contact-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.contact-label {
    font-family: "Montserrat", sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.7;
    margin-bottom: 0.5rem;
}

.contact-value {
    font-family: "M PLUS 1p", "BIZ UDGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
    font-size: 1.1rem;
    letter-spacing: 0.05em;
}

.contact-value a {
    color: white;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
    transition: border-color 0.3s;
}

.contact-value a:hover {
    border-bottom-color: white;
}

.contact-right {
    position: relative;
    z-index: 2;
    overflow: hidden;
    background: #ffffff;
    isolation: isolate;
}

.contact-right::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: url('../images/aodamo-tree.png') center/cover;
    opacity: 1;
}

.contact-right::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(135deg, 
        rgba(74, 155, 159, 0.18), 
        rgba(45, 79, 124, 0.12));
}


/* collaboration - CONTACT Section */
.collaboration-contact-right {
    position: relative;
    z-index: 2;
    overflow: hidden;
    background: #ffffff;
    isolation: isolate;
}

.collaboration-contact-right::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: url('../images/collaboration/contact.png') center/cover;
    opacity: 1;
}
.collaboration-contact-right::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(135deg, 
        rgba(74, 155, 159, 0.18), 
        rgba(45, 79, 124, 0.12));
}


/* Footer */
footer {
    font-family: "Montserrat", sans-serif;
    position: relative;
    z-index: 1;
    background: var(--aodamo-deep-blue);
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    padding: 0.5rem;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}


/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Responsive */
@media (max-width: 968px) {
    header {
        padding: 1.5rem 5%;
    }

    .logo-img {
        height: 46px;
        transform: scale(1.25);
    }

    .logo-text {
        font-size: 1.1rem;
    }

    nav {
        gap: 1.5rem;
    }

    nav a {
        font-size: 0.8rem;
    }

    .hero {
        padding: 0 5%;
    }

    section {
        padding: 5rem 5%;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .provide-services-grid {
        grid-template-columns: 1fr;
    }

    .provide-services-sub-list li {
        display: block;
    }

    .provide-services-sub-list .services-label {
        display: block;
        min-width: 0;
    }

    .provide-services-sub-list .services-detail {
        display: block;
        margin-top: 0.3em;
        padding-left: 1em;
        text-indent: -1em;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }

    .contact-left {
        padding: 5rem 5%;
    }

    .contact-right {
        min-height: 300px;
    }
}

@media (max-width: 640px) {
    .logo-img {
        height: 36px;
        transform: scale(1.20);
    }

    .logo-text {
        font-size: 1rem;
    }

    nav {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }
}