/*==================
ABOUT HERO
==================*/

.about-hero {

    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding: 140px 6% 140px;
    min-height: 100vh;


}

.about-hero-overlay {

    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        radial-gradient(60% 60% at 20% 50%, rgba(5, 7, 11, .55), transparent 70%),
        linear-gradient(180deg, rgba(5, 7, 11, .2) 0%, rgba(5, 7, 11, .1) 60%, var(--bg) 100%);

}

.about-hero .section-particles {

    z-index: 2;

}

.about-hero-grid {

    width: 90%;
    max-width: 1450px;

    margin: auto;

    display: grid;

    grid-template-columns: 1.15fr .85fr;

    gap: 80px;

    position: relative;

    z-index: 3;

}

.about-hero-left {

    display: flex;
    flex-direction: column;
    justify-content: center;

}

.hero-tag {

    display: inline-flex;

    align-items: center;

    width: max-content;

    padding: 12px 24px;

    border-radius: 40px;

    border: 1px solid rgba(79, 246, 255, .25);

    color: #4FF6FF;

    letter-spacing: 3px;

    font-size: 12px;

    backdrop-filter: blur(20px);

}

.about-hero-left h1 {

    margin-top: 40px;

    font-size: clamp(40px, 7vw, 84px);
    line-height: .95;
    letter-spacing: clamp(-1.5px, -.25vw, -3px);

}

.about-hero-left p {

    margin-top: 30px;

    max-width: 560px;

    color: #AEBAC8;
    line-height: 1.9;
    font-size: clamp(16px, 1.8vw, 18px);

}

.about-hero-right {

    display: flex;
    flex-direction: column;
    gap: 35px;

}

.stat-card {

    padding: 28px 32px;

    border-radius: 20px;

    background: rgba(10, 15, 22, .55);
    border: 1px solid rgba(79, 246, 255, .15);
    backdrop-filter: blur(30px);

    transition: .4s;

}

.stat-card:hover {

    border-color: rgba(79, 246, 255, .35);
    transform: translateY(-4px);

}

.stat-card span {

    color: var(--cyan);
    font-size: 11px;
    letter-spacing: 2.5px;

}

.stat-card h3 {

    margin: 14px 0 8px;

    font-size: clamp(22px, 2.5vw, 28px);

    background: linear-gradient(135deg, #42A5FF, #4FF6FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;

}

.stat-card p {

    color: #8FA2B4;
    font-size: 14px;
    line-height: 1.6;

}

@media(max-width:1260px) {


    .about-hero {
        height: auto;
        min-height: 100vh;
        padding: 160px 0 100px;
    }

    .about-hero-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

}

/*==================
SHARED SECTION HEADER
(used by origin + philosophy + build)
==================*/

.section-header {

    text-align: center;
    max-width: 800px;
    margin: auto;

}

.section-header h2 {

    margin-top: 25px;

    font-size: clamp(32px, 5vw, 60px);
    line-height: 1.1;

}

.section-header p {

    margin-top: 25px;

    color: #9FB1C2;
    line-height: 1.9;

}

/*==================
ORIGIN STORY
==================*/

.about-origin {

    padding: clamp(90px, 16vw, 160px) 6%;

    background: #070B11;

}

.story-grid {

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;

    margin-top: clamp(50px, 8vw, 90px);

}

.story-block {

    position: relative;
    overflow: hidden;

    padding: clamp(30px, 4vw, 40px);

    border-radius: 22px;

    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(79, 246, 255, .08);

    transition: .4s;

}

.story-block::before {

    content: "";

    position: absolute;
    top: 0;
    left: 0;

    width: 100%;
    height: 2px;

    background: linear-gradient(90deg, transparent, var(--cyan), transparent);

    transform: translateX(-100%);
    transition: .6s;

}

.story-block:hover::before {

    transform: translateX(100%);

}

.story-block:hover {

    transform: translateY(-8px);
    border-color: rgba(79, 246, 255, .25);

}

.story-block h3 {

    font-size: 20px;
    color: var(--cyan);
    letter-spacing: .5px;
    margin-bottom: 16px;

}

.story-block p {

    color: #9FB1C2;
    line-height: 1.8;

}

@media(max-width:900px) {

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

}

/*==================
ENGINEERING PHILOSOPHY
==================*/

.about-philosophy {

    padding: clamp(90px, 16vw, 160px) 6%;

    background: #05070B;

}

.philosophy-grid {

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;

    margin-top: clamp(50px, 8vw, 90px);

}

.philosophy-card {

    position: relative;
    overflow: hidden;

    padding: clamp(30px, 4vw, 42px);

    border-radius: 24px;

    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(79, 246, 255, .08);

    transition: .45s;

}

.philosophy-card:hover {

    transform: translateY(-10px);
    border-color: rgba(79, 246, 255, .3);

    box-shadow: 0 20px 60px rgba(66, 165, 255, .12);

}

.philosophy-card .number {

    font-size: 52px;
    font-weight: 700;

    color: rgba(79, 246, 255, .1);

    margin-bottom: 24px;

}

.philosophy-card h3 {

    font-size: 22px;
    margin-bottom: 16px;

}

.philosophy-card p {

    color: #9FB1C2;
    line-height: 1.8;

}

@media(max-width:900px) {

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

}

/*==================
CHINA ENGINEERING HUB
==================*/

.about-china {

    position: relative;
    overflow: hidden;

    padding: clamp(90px, 16vw, 160px) 6%;

    background: #070B11;

}

.china-grid {

    max-width: 1400px;
    margin: auto;

    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 80px;
    align-items: center;

}

.china-left h2 {

    margin-top: 25px;

    font-size: clamp(30px, 4.5vw, 52px);
    line-height: 1.15;

}

.china-left p {

    margin-top: 24px;

    color: #9FB1C2;
    line-height: 1.9;

}

.china-list {

    list-style: none;
    padding: 0;
    margin-top: 35px;

    display: flex;
    flex-direction: column;
    gap: 16px;

}

.china-list li {

    position: relative;
    padding-left: 26px;

    color: #C7D3DE;
    line-height: 1.6;

}

.china-list li::before {

    content: "";

    position: absolute;
    left: 0;
    top: 8px;

    width: 8px;
    height: 8px;
    border-radius: 50%;

    background: var(--cyan);
    box-shadow: 0 0 10px rgba(79, 246, 255, .6);

}

.china-right {

    display: flex;
    justify-content: center;

}

.map-glow-box {

    position: relative;
    overflow: hidden;

    width: 100%;
    max-width: 420px;
    min-height: 320px;

    display: flex;
    flex-direction: column;
    justify-content: center;

    padding: 40px;

    border-radius: 28px;

    background:
        radial-gradient(circle at 30% 20%, rgba(79, 246, 255, .12), transparent 60%),
        rgba(10, 15, 22, .6);

    border: 1px solid rgba(79, 246, 255, .15);
    backdrop-filter: blur(20px);

}

.map-glow-box::before {

    content: "";

    position: absolute;
    inset: 0;

    background:
        linear-gradient(rgba(79, 246, 255, .05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 246, 255, .05) 1px, transparent 1px);

    background-size: 30px 30px;
    opacity: .4;

}

.map-glow-box::after {

    content: "";

    position: absolute;
    top: -40px;
    right: -40px;

    width: 260px;
    height: 260px;

    border-radius: 50%;

    background: rgba(79, 246, 255, .18);
    filter: blur(80px);

}

.map-glow-box h3 {

    position: relative;
    z-index: 2;

    font-size: clamp(28px, 3vw, 36px);
    margin-bottom: 14px;

    background: linear-gradient(135deg, #42A5FF, #4FF6FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;

}

.map-glow-box p {

    position: relative;
    z-index: 2;

    color: #9FB1C2;
    line-height: 1.7;

}

@media(max-width:1000px) {

    .china-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .china-right {
        order: -1;
    }

}

/*==================
WHAT WE BUILD
==================*/

.about-build {

    padding: clamp(90px, 16vw, 160px) 6%;

    background: #05070B;

}

.build-grid {

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;

    margin-top: clamp(50px, 8vw, 90px);

}

.build-card {

    position: relative;
    overflow: hidden;

    display: flex;
    flex-direction: column;
    gap: 20px;

    padding: clamp(28px, 3.5vw, 36px);

    border-radius: 20px;

    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(79, 246, 255, .08);

    transition: .4s;

}

.build-card::before {

    content: "";

    position: absolute;
    top: 0;
    left: 0;

    width: 100%;
    height: 2px;

    background: linear-gradient(90deg, transparent, var(--cyan), transparent);

    transform: translateX(-100%);
    transition: .6s;

}

.build-card:hover::before {

    transform: translateX(100%);

}

.build-card:hover {

    transform: translateY(-8px);
    border-color: rgba(79, 246, 255, .28);

    box-shadow: 0 20px 50px rgba(66, 165, 255, .1);

}

.build-icon {

    width: 50px;
    height: 50px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 14px;

    background: linear-gradient(135deg, rgba(66, 165, 255, .22), rgba(79, 246, 255, .1));
    color: var(--cyan);

}

.build-icon svg {

    width: 24px;
    height: 24px;

}

.build-card h3 {

    font-size: 18px;
    letter-spacing: .2px;
    line-height: 1.4;

}

@media(max-width:900px) {

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

}

@media(max-width:560px) {

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

}

/*==================
MEET THE FOUNDER
==================*/

.about-founder {

    padding: clamp(90px, 16vw, 160px) 6%;

    background: #070B11;

}

.founder-grid {

    max-width: 1200px;
    margin: auto;

    display: grid;
    grid-template-columns: .75fr 1.25fr;
    gap: 70px;
    align-items: center;

}

.founder-visual {

    display: flex;
    justify-content: center;

}

.founder-avatar {

    position: relative;
    overflow: hidden;

    width: 220px;
    height: 220px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 50%;

    background: linear-gradient(135deg, rgba(66, 165, 255, .2), rgba(79, 246, 255, .06));
    border: 1px solid rgba(79, 246, 255, .25);

}

.founder-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.founder-content h2 {

    margin-top: 22px;

    font-size: clamp(30px, 4.5vw, 50px);
    line-height: 1.15;

}

.founder-content p {

    margin-top: 22px;

    color: #9FB1C2;
    line-height: 1.9;

}

@media(max-width:900px) {

    .founder-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .founder-visual {
        order: -1;
    }

}

/*==================
FUTURE VISION
==================*/

.about-vision {

    display: flex;
    justify-content: center;

    padding: clamp(90px, 16vw, 160px) 6%;

    background: #05070B;

}

.vision-box {

    position: relative;
    overflow: hidden;

    width: 100%;
    max-width: 1000px;

    text-align: center;

    padding: clamp(50px, 8vw, 90px) clamp(30px, 6vw, 70px);

    border-radius: 32px;

    background: linear-gradient(135deg, rgba(66, 165, 255, .06), rgba(79, 246, 255, .02));
    border: 1px solid rgba(79, 246, 255, .15);

}

.vision-box::before {

    content: "";

    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    width: 600px;
    height: 600px;

    border-radius: 50%;

    background: radial-gradient(rgba(79, 246, 255, .15), transparent 70%);

    pointer-events: none;

}

.vision-box>* {

    position: relative;
    z-index: 2;

}

.vision-box h2 {

    margin-top: 22px;

    font-size: clamp(32px, 5vw, 56px);
    line-height: 1.1;

}

.vision-box p {

    margin: 28px auto 0;
    max-width: 640px;

    color: #AEBAC8;
    line-height: 1.9;

}

.vision-points {

    margin-top: 45px;

    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;

}

.vision-points div {

    padding: 14px 26px;

    border-radius: 40px;

    border: 1px solid rgba(79, 246, 255, .25);
    background: rgba(255, 255, 255, .03);
    backdrop-filter: blur(20px);

    color: var(--text);
    font-size: 14px;
    letter-spacing: .5px;

}

/*==================
FOOTER CTA
==================*/

.about-cta {

    position: relative;
    overflow: hidden;

    padding: clamp(90px, 16vw, 160px) 6%;

    background: #070A10;

    text-align: center;

}

.about-cta::before {

    content: "";

    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    width: 700px;
    height: 700px;

    border-radius: 50%;

    background: radial-gradient(rgba(79, 246, 255, .18), transparent 70%);

    pointer-events: none;

}

.cta-box {

    position: relative;
    z-index: 2;

    max-width: 800px;
    margin: auto;

}

.cta-box h2 {

    font-size: clamp(34px, 6vw, 72px);
    line-height: 1.05;

}

.cta-box p {

    margin: 32px auto 0;
    max-width: 600px;

    color: #A6B8C8;
    line-height: 1.9;

}

.cta-box .btn-primary {

    margin-top: 40px;

}

/* Extra small screens: tighten side padding, matching Index.css convention */
@media(max-width:480px) {

    .about-hero,
    .about-origin,
    .about-philosophy,
    .about-china,
    .about-build,
    .about-founder,
    .about-vision,
    .about-cta {
        padding-left: 5%;
        padding-right: 5%;
    }

}