*, *::before, *::after { box-sizing: border-box; }
:root {
    --bg-start: #0f2027;
    --bg-end: #2c5364;
    --text: #eaf6fb;
    --muted: #b0c7cf;
    --accent: #ffd600;
    --accent-strong: #ffab00;
    --card: rgba(255,255,255,0.08);
    --card-hover: rgba(255,255,255,0.12);
    --card-border: rgba(255,255,255,0.10);
    --card-border-strong: rgba(255,255,255,0.18);
    --shadow: 0 8px 28px rgba(0,0,0,0.18);
    --shadow-soft: 0 4px 18px rgba(0,0,0,0.14);
    --radius: 14px;
    --radius-pill: 999px;
    --container: 1120px;
}
body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    /* fallback gradient in case WebGL is unavailable */
    background: radial-gradient(1200px 600px at 10% -10%, rgba(0, 0, 0, 0.05), transparent 50%),
                radial-gradient(900px 500px at 110% 10%, rgba(0, 0, 0, 0.03), transparent 60%),
                linear-gradient(135deg, var(--bg-start), var(--bg-end));
    color: var(--text);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
/* background canvas layering */
#bg-webgl { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
/* Layout helpers */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}
header {
    background: rgba(44,83,100,0.45);
    padding: 28px 0 16px 0;
    text-align: center;
    backdrop-filter: saturate(130%) blur(6px);
    -webkit-backdrop-filter: saturate(130%) blur(6px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 1px 0 rgba(255,255,255,0.04) inset;
}
.header-bar {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    margin-bottom: 14px;
}
.header-bar .header-title {
    margin: 0;
    font-size: 2.6em;
    font-weight: 700;
    text-align: center;
    color: #fff;
    grid-column: 2;
    justify-self: center;
}
.header-bar .header-title a {
    color: inherit;
    text-decoration: none;
}
.header-bar nav {
    margin: 10px;
    text-align: right;
    grid-column: 3;
    justify-self: end;
}
.header-bar nav a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 700;
    font-size: 1em;
    display: inline-block;
    padding: 7px 12px;
    border: 1.5px solid rgba(255, 214, 0, 0.45);
    border-radius: var(--radius-pill);
    background: rgba(255, 214, 0, 0.05);
    line-height: 1;
    vertical-align: middle;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}
.lang-toggle { opacity: 0.9; font-weight: 600; font-size: 0.95em; display: inline-flex; align-items: center; line-height: 1; }
.lang-toggle .sep { opacity: 0.6; margin: 0 2px; }
.lang-toggle a { color: var(--accent); text-decoration: none; padding: 0 2px; border-radius: 0; border: 0; background: transparent; }
.lang-toggle a.active { text-decoration: underline; color: var(--accent-strong); background: transparent; }
/* Ensure language toggle never inherits pill borders */
.header-bar nav .lang-toggle a { border: 0 !important; background: transparent !important; padding: 0 4px !important; border-radius: 0 !important; box-shadow: none !important; }
.header-bar nav a:hover {
    color: #ffffff;
    background: rgba(255, 214, 0, 0.18);
    border-color: var(--accent);
    box-shadow: 0 2px 10px rgba(0,0,0,0.25);
}
.header-bar ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: inline-flex;
    justify-content: flex-end;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    row-gap: 6px;
}

header p {
    text-align: center;
    color: #cdebf3;
    font-size: 1.18em;
    margin: 0;
    letter-spacing: 0.2px;
}
.features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px;
    margin: 40px auto;
}
.feature {
    display: block;
    background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04)) padding-box,
                linear-gradient(180deg, rgba(255,255,255,0.16), rgba(255,255,255,0.06)) border-box;
    border-radius: var(--radius);
    margin: 10px;
    padding: 28px 22px;
    width: 270px;
    box-shadow: var(--shadow-soft);
    text-align: center;
    color: inherit;
    text-decoration: none;
    border: 1px solid var(--card-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    -webkit-tap-highlight-color: rgba(255, 214, 0, 0.2);
    position: relative;
    overflow: hidden;
}
.feature:hover, .feature:focus-visible {
    background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.07)) padding-box,
                linear-gradient(180deg, rgba(255,255,255,0.22), rgba(255,255,255,0.10)) border-box;
    border-color: var(--card-border-strong);
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}
.feature:active {
    transform: translateY(0);
    box-shadow: 0 4px 18px rgba(0,0,0,0.18) inset;
}
.feature h2 {
    font-size: 1.35em;
    margin-bottom: 10px;
    color: var(--accent);
    letter-spacing: 0.2px;
}
.feature p {
    font-size: 1em;
    color: #e5f5fa;
}

.feature .badge {
    position: absolute;
    top: 10px;
    right: 12px;
    /* background: rgb(255 214 0 / 47%); */
    color: #263238;
    font-weight: 800;
    font-size: 1.35em;
    padding: 4px 8px;
    border-radius: 8px;
    /* box-shadow: 0 2px 8px rgba(0,0,0,0.18); */
}
/* App icons inside client cards */
.feature .app-icon {
    width: 56px;
    height: 56px;
    object-fit: contain;
    margin-bottom: 8px;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,0.25));
}
/* Removed inner button link styles because the whole card is now the link */
.cta {
    text-align: center;
    margin: 0;
}
.cta .container { display: flex; justify-content: center; align-items: center; }
.cta a {
    position: relative;
    border: 1.5px solid rgba(255, 214, 0, 0.45);
    background: #ffd60030;
    color: #ffffff;
    padding: 16px 40px;
    border-radius: 32px;
    font-size: 1.2em;
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 6px 18px rgba(0,0,0,0.24);
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    display: inline-block;
}
.cta a:hover {
    background: #fcdc3c7a;
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(0,0,0,0.28);
}
footer {
    text-align: center;
    padding: 24px 0;
    color: var(--muted);
    font-size: 0.95em;
}

/* Medium screens: tighten nav so EN labels don't overflow */
@media (max-width: 1024px) {
    .header-bar .header-title { font-size: 2.3em; }
    .header-bar nav { margin: 8px; }
    .header-bar ul { gap: 8px; row-gap: 6px; }
    .header-bar nav a { font-size: 0.95em; padding: 6px 10px; }
}

@media (max-width: 600px) {
    body {
        font-size: 16px;
        padding: 0;
        overflow-x: hidden;
    }
    header {
        padding: 8px 0 12px 0;
        margin: 0;
    }
    .header-bar {
        display: grid;
        grid-template-columns: auto 1fr;
        align-items: center;
        gap: 8px;
        margin-bottom: 8px;
        padding: 0 10px;
    }
    .header-bar .header-title {
        font-size: 1.3em;
        text-align: left;
        margin: 0;
        grid-column: 1;
        justify-self: start;
    }
    .header-bar nav {
        margin: 0;
        text-align: right;
        max-width: 100%;
        width: 100%;
        min-width: 0; /* allow flex items to shrink */
        grid-column: 2;
        justify-self: stretch;
    }
    .header-bar ul {
        gap: clamp(4px, 2vw, 8px);
        flex-direction: row;
        align-items: center;
        flex-wrap: nowrap; /* keep on one line */
        overflow: hidden; /* avoid horizontal scroll */
        -webkit-overflow-scrolling: touch;
    }
    .lang-toggle { font-size: clamp(12px, 3vw, 14px); }
    .lang-toggle a { padding: 0 3px; }
    .header-bar ul::-webkit-scrollbar { display: none; }
    .header-bar nav a {
        font-size: clamp(12px, 3.4vw, 14px);
        padding: 4px 8px;
        white-space: nowrap; /* prevent wrapping each label */
    }
    header p { display: block; font-size: 0.95em; padding: 0 10px; }
    
    .features {
        flex-direction: column;
        flex-wrap: nowrap;
        margin: 20px 0;
        overflow: visible;
        gap: 0;
    }
    .feature {
        width: 75%;
        max-width: 320px;
        flex: 0 0 auto;
        min-width: 0;
        margin: 8px auto;
        padding: 12px 12px;
    }
    .feature h2 { /* smaller than mobile title (1.3em) */
        font-size: clamp(12px, 3.6vw, 1.15rem);
    }
    .feature p {
        font-size: clamp(12px, 3.2vw, 1rem);
    }
    .feature .badge {
        font-size: clamp(12px, 3.6vw, 1.15rem);
    }
    .feature .app-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 6px;
    }
    .cta a {
        width: 80%;
        padding: 10px 10px;
        font-size: 1.1em;
    }
    img, video {
        max-width: 100%;
        height: auto;
    }
    button, input, select {
        font-size: 1em;
        width: 100%;
        box-sizing: border-box;
    }
}