:root {
    --cube-size: 1700px;
    --cube-scale: 1;
    --header-h: 58px;
    --footer-h: 44px;
    --brand-bg: #bdc6bc;
    --brand-panel: rgb(208 236 208);
    --brand-ink: #243a24;
    --brand-accent: #6a8e70;
    --brand-accent-2: #7c9882;
    --brand-header: #90da93;
    --brand-edge: rgb(32 38 30);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--brand-bg);
    color: var(--brand-ink);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    scroll-behavior: smooth;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0; right: 0;
    height: var(--header-h);
    background: var(--brand-header);
    z-index: 20;
    box-shadow: 0 2px 10px rgba(0,0,0,0.12);
    display: flex;
    align-items: center;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 20px;
    width: 100%;
}

.logo {
    height: 60px;
    width: auto;
    flex: 0 0 auto;
}

.site-title {
    margin-left: 8px;
    margin-right: auto;
    font-size: 1.125rem;
    line-height: 1;
    white-space: nowrap;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 18px;
    margin: 0;
    padding: 0;
}

.main-nav a {
    color: var(--brand-ink);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 8px;
    transition: color .25s, transform .25s, background .25s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
    background: #ffffff;
}

.main-nav a:hover, .main-nav a:focus {
    color: #103010;
    background: #ffffff;
    transform: rotate3d(1,1,0,6deg);
    outline: none;
}

.main-wrap {
    flex: 1 0 auto;
    display: flex;
    flex-direction: column;
    padding-top: var(--header-h);
    padding-bottom: calc(var(--footer-h) + 8px);
}

.cube-viewport {
    position: relative;
    width: 100%;
    height: calc(100vh - var(--header-h) - var(--footer-h) + 50px);
    min-height: 420px;
    perspective: 1600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 12px;
}

.cube {
    position: relative;
    width: var(--cube-size);
    height: var(--cube-size);
    transform-style: preserve-3d;
    transition: transform 900ms cubic-bezier(.2,.8,.2,1), scale 300ms ease;
    scale: var(--cube-scale);
}

.face {
    position: absolute;
    width: 100%;
    height: 100%;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    backface-visibility: hidden;
}

.inner {
    width: 100%;
    max-width: 1120px;
    background: var(--brand-panel);
    padding: 5px 32px;
    border-radius: 16px;
    box-shadow: 0 14px 36px rgba(0,0,0,0.10);
    border: 1px solid var(--brand-edge);
}

.hero { transform: rotateY(0deg) translateZ(calc(var(--cube-size) / 2)); }
.services { transform: rotateY(90deg) translateZ(calc(var(--cube-size) / 2)); }
.faq { transform: rotateY(180deg) translateZ(calc(var(--cube-size) / 2)); }
.contact { transform: rotateY(270deg) translateZ(calc(var(--cube-size) / 2)); }
.about { transform: rotateX(90deg) translateZ(calc(var(--cube-size) / 2)); }
.ceo { transform: rotateX(-90deg) translateZ(calc(var(--cube-size) / 2)); }
.diplomas { transform: rotateY(360deg) translateZ(calc(var(--cube-size) / 2)); }

button, .cta {
    padding: 12px 22px;
    background: var(--brand-accent);
    color: #0a1a0a;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 6px 14px rgba(0,0,0,0.15);
    transition: background .25s, transform .2s, box-shadow .25s;
    height: 44px
}

button:hover, .cta:hover, button:focus, .cta:focus {
    background: var(--brand-accent-2);
    transform: translateY(-1px);
    outline: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.service-box {
    background: #f7fff8;
    padding: 18px;
    border-radius: 14px;
    display: grid;
    gap: 12px;
    border: 1px solid var(--brand-edge);
    box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.accordion-trigger {
    width: 100%;
    background: #f7fff8;
    color: var(--brand-ink);
    padding: 14px 16px;
    border: 1px solid var(--brand-edge);
    text-align: left;
    border-radius: 12px;
}

.accordion-content {
    display: none;
    padding: 12px 2px 8px;
}

#contact-form input, #contact-form textarea {
    width: 100%;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--brand-edge);
    background: #ffffff;
    color: var(--brand-ink);
}

#contact-form textarea { min-height: 120px; }

.success-message {
    margin-top: 16px;
    color: #0e6b2f;
}

.ceo-img {
    width: 200px;
    height: auto;
    display: block;
    margin-bottom: 18px;
    border-radius: 12px;
    background: #ffffff;
    border: 1px solid var(--brand-edge);
}

.diploma-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(157px, 1fr));
    gap: 20px;
    align-items: stretch;
}

.diploma-card {
    display: grid;
    grid-template-rows: auto 1fr;
    background: #ffffff;
    border: 1px solid var(--brand-edge);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 12px 28px rgba(0,0,0,0.10);
    max-height: 440px
}

.diploma-media {
    background: #dbeeb9;
}

.diploma-media img {
    width: 156px;
    height: auto;
    object-fit: cover;
    display: block;
    
    max-height: 214px;
}

.diploma-body {
    display: grid;
    padding: 10px;
    grid-template-rows: 70px 150px 100px;
}

.site-footer {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    height: var(--footer-h);
    background: var(--brand-header);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.12);
    display: flex;
    align-items: center;
    z-index: 30;
}

.footer-row {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 0 12px;
    font-size: 0.95rem;
}

@media (max-width: 720px) {
    .site-title { display: none; }
    .main-nav ul { gap: 10px; }
    .inner { width: 96%; padding: 24px; }
    .footer-row { gap: 12px; font-size: 0.9rem; }
}