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

:root {
    /* Light palette */
    --color-bg: #f2f2f7;
    --color-bg-warm: #fafafa;

    /* Light Liquid Glass */
    --glass-bg: rgba(255, 255, 255, 0.45);
    --glass-bg-hover: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-border-hover: rgba(255, 255, 255, 0.85);
    --glass-blur: blur(28px) saturate(180%);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    --glass-shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.1);
    --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.8);

    /* Text */
    --color-text: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-text-tertiary: #aeaeb2;

    /* Accent */
    --color-accent: #0071e3;
    --color-accent-hover: #0077ed;
    --color-accent-glow: rgba(0, 113, 227, 0.15);
    --color-accent-2: #7c3aed;
    --color-accent-2-glow: rgba(124, 58, 237, 0.12);

    /* Layout */
    --nav-height: 64px;
    --section-padding: clamp(60px, 8vw, 120px);
    --content-max-width: 980px;
    --content-wide-width: 1200px;
    --radius: 24px;
    --radius-sm: 16px;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: clamp(0.875rem, 1vw + 0.5rem, 1.125rem);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

/* ===== Animated Background — Light ===== */
.bg-mesh {
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(ellipse 80% 50% at 10% 20%, rgba(0, 113, 227, 0.07) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 90% 80%, rgba(124, 58, 237, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 70% 40% at 50% 100%, rgba(236, 72, 153, 0.04) 0%, transparent 50%),
        var(--color-bg);
}

.bg-orbs {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.6;
    animation: orbFloat 20s ease-in-out infinite;
}

.bg-orb:nth-child(1) {
    width: 500px;
    height: 500px;
    background: rgba(0, 113, 227, 0.08);
    top: 5%;
    left: 10%;
    animation-duration: 24s;
}

.bg-orb:nth-child(2) {
    width: 400px;
    height: 400px;
    background: rgba(124, 58, 237, 0.06);
    top: 50%;
    right: 5%;
    animation-duration: 28s;
    animation-delay: -6s;
}

.bg-orb:nth-child(3) {
    width: 350px;
    height: 350px;
    background: rgba(236, 72, 153, 0.05);
    bottom: 10%;
    left: 35%;
    animation-duration: 32s;
    animation-delay: -12s;
}

@keyframes orbFloat {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(40px, -50px) scale(1.05);
    }

    50% {
        transform: translate(-30px, 30px) scale(0.95);
    }

    75% {
        transform: translate(20px, 40px) scale(1.03);
    }
}

/* ===== Navigation — Light Liquid Glass ===== */
.nav {
    position: sticky;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: #ffffff;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-header {
    position: absolute;
    left: clamp(16px, 3vw, 24px);
    top: 0;
    height: 100%;
    display: flex;
    align-items: center;
    z-index: 2100;
}

.nav-logo {
    height: 36px;
    width: auto;
    display: flex;
    align-items: center;
}

.nav-logo img {
    height: 100%;
    width: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    list-style: none;
    margin: 0 auto;
    padding: 0 36px;
}

.nav-item {
    padding: 0 24px;
    display: flex;
    align-items: center;
    height: var(--nav-height);
    position: relative;
}

.nav-item>a {
    text-decoration: none;
    color: var(--color-text);
    font-size: clamp(0.8rem, 1vw + 0.3rem, 1rem);
    opacity: 0.7;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    width: 100%;
    height: 100%;
    cursor: pointer;
    white-space: nowrap;
}

.nav-item a:hover,
.nav-item:hover>a {
    opacity: 1;
}

.nav .nav-item.is-active>a {
    opacity: 1;
    font-weight: 600;
}

/* Dropdown — Glass */
.nav .nav-item .dropdown-menu {
    position: absolute;
    top: var(--nav-height);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    z-index: 2000;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
    padding: 8px 0;
}

.nav .nav-item:hover .dropdown-menu,
.nav .nav-item:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.dropdown-content {
    display: flex;
    flex-direction: column;
    padding: 4px 0;
}

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

.dropdown-column li a {
    display: block;
    padding: 8px 20px;
    font-size: 0.9rem;
    color: var(--color-text);
    opacity: 0.8;
    transition: opacity 0.15s ease, background-color 0.15s ease;
    cursor: pointer;
}

.dropdown-column li a:hover {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.03);
}

.dropdown-column li.column-title a {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    pointer-events: none;
    padding-bottom: 4px;
}

/* Hide nav items on mobile */
@media (max-width: 856px) {
    .nav-list .nav-item {
        display: none;
    }
}

/* ===== Home Section ===== */
.home {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--nav-height));
    text-align: center;
    padding: var(--section-padding) clamp(20px, 5vw, 60px);
    position: relative;
}

.home-logo {
    width: clamp(800px, 90vw, 1200px);
    margin-bottom: clamp(24px, 4vw, 48px);
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.home h1 {
    font-size: clamp(2.2rem, 5.5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.08;
    margin-bottom: clamp(12px, 2vw, 24px);
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 60%, var(--color-accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.home p {
    font-size: clamp(1rem, 1.5vw, 1.3rem);
    color: var(--color-text-secondary);
    max-width: 520px;
    line-height: 1.6;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
}

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

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

/* ===== Section Commons ===== */
.section {
    padding: var(--section-padding) clamp(20px, 5vw, 60px);
    max-width: var(--content-wide-width);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: clamp(40px, 6vw, 80px);
}

.section-header h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: clamp(8px, 1.5vw, 16px);
}

.section-header p {
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    color: var(--color-text-secondary);
    max-width: 520px;
    margin: 0 auto;
}

/* =========================================================
   Product Showcase — Full-width immersive bands
   Each product is a horizontal section: text left, image right
   (reversed on even items for visual rhythm)
   ========================================================= */
.product-showcase {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.showcase-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: clamp(32px, 5vw, 80px);
    padding: clamp(48px, 7vw, 100px) clamp(24px, 5vw, 80px);
    max-width: var(--content-wide-width);
    margin: 0 auto;
    width: 100%;
    position: relative;
}

/* Even items: image left, text right */
.showcase-item:nth-child(even) {
    direction: rtl;
}

.showcase-item:nth-child(even)>* {
    direction: ltr;
}

/* Glass divider between items */
.showcase-item+.showcase-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(80%, 600px);
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.08), transparent);
}

.showcase-text {
    display: flex;
    flex-direction: column;
    gap: clamp(12px, 2vw, 20px);
}

.showcase-text h2 {
    font-size: clamp(1.6rem, 3vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.12;
}

.showcase-text .showcase-desc {
    font-size: clamp(0.875rem, 1vw + 0.3rem, 1.05rem);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.showcase-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.showcase-tags .tag {
    display: inline-flex;
    align-items: center;
    font-size: clamp(0.7rem, 0.85vw, 0.8rem);
    color: var(--color-text-secondary);
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 5px 14px;
    border-radius: 100px;
    white-space: nowrap;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.showcase-tags .tag:hover {
    border-color: var(--glass-border-hover);
    background: var(--glass-bg-hover);
}

.showcase-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-accent);
    font-size: clamp(0.9rem, 1vw, 1rem);
    font-weight: 500;
    margin-top: 4px;
    cursor: pointer;
    transition: gap 0.3s ease;
}

.showcase-link:hover {
    gap: 10px;
}

/* Showcase image — Glass frame */
.showcase-visual {
    position: relative;
}

.showcase-visual .glass-frame {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: clamp(12px, 2vw, 20px);
    box-shadow: var(--glass-shadow), var(--glass-inset);
    transition: box-shadow 0.4s ease, border-color 0.3s ease;
    overflow: hidden;
}

.showcase-visual .glass-frame:hover {
    box-shadow: var(--glass-shadow-hover), var(--glass-inset);
    border-color: var(--glass-border-hover);
}

.showcase-visual .glass-frame img {
    width: 100%;
    border-radius: calc(var(--radius) - 8px);
}

/* When 2 screenshots stacked */
.showcase-visual .glass-frame.stacked {
    display: flex;
    flex-direction: column;
    gap: clamp(8px, 1.5vw, 14px);
}

/* ===== Product Detail Expand ===== */
.product-detail {
    padding: var(--section-padding) clamp(20px, 5vw, 60px);
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.product-detail-header {
    margin-bottom: clamp(24px, 4vw, 48px);
}

.product-detail-header h2 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: clamp(8px, 1.5vw, 16px);
    line-height: 1.2;
}

.product-detail-header .subtitle {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(6px, 1vw, 10px);
}

.product-detail-header .tag {
    display: inline-flex;
    align-items: center;
    font-size: clamp(0.7rem, 0.85vw, 0.82rem);
    color: var(--color-text-secondary);
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 5px 14px;
    border-radius: 100px;
    white-space: nowrap;
}

.detail-content h3 {
    font-size: clamp(1.1rem, 1.5vw, 1.35rem);
    font-weight: 600;
    margin-bottom: clamp(12px, 2vw, 20px);
    margin-top: clamp(28px, 4vw, 48px);
    position: relative;
    padding-left: 16px;
}

.detail-content h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 3px;
    bottom: 3px;
    width: 3px;
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-2));
    border-radius: 2px;
}

.detail-content h3:first-child {
    margin-top: 0;
}

.detail-content p {
    font-size: clamp(0.875rem, 1vw + 0.3rem, 1.05rem);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: clamp(12px, 1.5vw, 16px);
}

/* Feature grid — Glass items */
.detail-content .feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 8px;
    margin-bottom: clamp(12px, 2vw, 20px);
}

.detail-content .feature-item {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: clamp(10px, 1.5vw, 14px) clamp(12px, 2vw, 16px);
    border-radius: 12px;
    font-size: clamp(0.8rem, 0.9vw, 0.9rem);
    color: var(--color-text-secondary);
    transition: border-color 0.2s ease, background 0.2s ease;
}

.detail-content .feature-item:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

.detail-screenshots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
    gap: clamp(12px, 2vw, 20px);
    margin-top: clamp(16px, 2.5vw, 28px);
}

.detail-screenshots img {
    width: 100%;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.detail-screenshots img:hover {
    transform: scale(1.015);
    box-shadow: var(--glass-shadow-hover);
}

/* ===== Contact — Glass Cards ===== */
.contact-section {
    padding: var(--section-padding) clamp(20px, 5vw, 60px);
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.contact-cards {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(24px, 4vw, 40px);
    justify-content: center;
    align-items: stretch;
}

.contact-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: clamp(32px, 4vw, 52px) clamp(28px, 4vw, 44px);
    box-shadow: var(--glass-shadow), var(--glass-inset);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: clamp(12px, 2vw, 20px);
    flex: 1 1 260px;
    max-width: 360px;
    min-width: 240px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-card:hover {
    border-color: var(--glass-border-hover);
    box-shadow: var(--glass-shadow-hover), var(--glass-inset);
}

.contact-card img.contact-icon {
    width: clamp(40px, 5vw, 52px);
    height: clamp(40px, 5vw, 52px);
    object-fit: contain;
}

.contact-card h3 {
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    font-weight: 600;
}

.contact-card a.phone-link {
    color: var(--color-accent);
    font-size: clamp(1.1rem, 1.5vw, 1.4rem);
    font-weight: 600;
    transition: color 0.2s ease;
}

.contact-card a.phone-link:hover {
    color: var(--color-accent-hover);
}

.contact-card .phone-hours {
    font-size: clamp(0.75rem, 0.9vw, 0.9rem);
    color: var(--color-text-tertiary);
}

.contact-card img.qr-code {
    width: clamp(140px, 18vw, 200px);
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

/* ===== Footer — Glass ===== */
.site-footer {
    background: rgba(242, 242, 247, 0.65);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    padding: clamp(20px, 3vw, 32px) clamp(20px, 5vw, 60px);
}

.footer-bottom {
    max-width: var(--content-max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.footer-bottom p {
    margin: 0;
    font-size: clamp(0.75rem, 0.9vw, 0.85rem);
    color: var(--color-text-tertiary);
}

.footer-bottom a {
    color: var(--color-text-secondary);
    font-size: clamp(0.75rem, 0.9vw, 0.85rem);
    transition: color 0.2s ease;
}

.footer-bottom a:hover {
    color: var(--color-text);
}

/* ===== Mobile Burger Menu ===== */
.nav-burger {
    display: none;
    position: absolute;
    right: clamp(16px, 3vw, 24px);
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 2500;
    padding: 0;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
}

.nav-burger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: transform 0.3s ease, opacity 0.3s ease;
    border-radius: 2px;
}

@media (max-width: 856px) {
    .nav-burger {
        display: flex;
    }

    .nav-list {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background: rgba(242, 242, 247, 0.96);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 80px;
        transform: translateY(-100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        visibility: hidden;
        z-index: 2000;
    }

    .nav.is-mobile-open .nav-list {
        transform: translateY(0);
        visibility: visible;
    }

    .nav-list .nav-item {
        width: 100%;
        height: auto;
        padding: 0;
        display: block;
        opacity: 0;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .nav.is-mobile-open .nav-list .nav-item {
        opacity: 1;
        transform: translateY(0);
    }

    .nav.is-mobile-open .nav-list .nav-item:nth-child(1) {
        transition-delay: 0.1s;
    }

    .nav.is-mobile-open .nav-list .nav-item:nth-child(2) {
        transition-delay: 0.15s;
    }

    .nav.is-mobile-open .nav-list .nav-item:nth-child(3) {
        transition-delay: 0.2s;
    }

    .nav-item>a {
        padding: 16px 24px;
        font-size: clamp(1.1rem, 3vw, 1.4rem);
        font-weight: 600;
        justify-content: flex-start;
    }

    .dropdown-menu {
        display: none !important;
    }

    .nav.is-mobile-open .nav-burger span:first-child {
        transform: translateY(8px) rotate(45deg);
    }

    .nav.is-mobile-open .nav-burger span:last-child {
        transform: translateY(-8px) rotate(-45deg);
    }
}

/* ===== Responsive — Showcase ===== */
@media (max-width: 768px) {
    .showcase-item {
        grid-template-columns: 1fr;
        gap: clamp(24px, 4vw, 40px);
    }

    .showcase-item:nth-child(even) {
        direction: ltr;
    }

    .detail-screenshots {
        grid-template-columns: 1fr;
    }

    .contact-cards {
        flex-direction: column;
        align-items: center;
    }

    .contact-card {
        max-width: 100%;
        width: 100%;
    }

    .bg-orb {
        opacity: 0.35;
    }
}

@media (max-width: 480px) {
    .detail-content .feature-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .bg-orb {
        opacity: 0.2;
    }
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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