:root {
    --bg: #08111f;
    --bg2: #0f1d33;
    --card: #152540;
    --primary: #3CFF7A;
    --primary-hover: #70ff9c;
    --text: #f5f5f5;
    --muted: #b9c5d1;
    --border: #263952;
    --danger: #ff6666;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a {
    color: inherit;
}

header {
    background: #091426;
    border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1100px;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo {
    font-size: 26px;
    font-weight: bold;
    color: var(--primary);
    letter-spacing: 1px;
    text-decoration: none;
}

nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 20px;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    transition: .3s;
}

nav a:visited {
    color: var(--muted);
}

nav a:hover,
nav a:focus {
    color: var(--primary);
}

.hero {
    padding: 90px 20px 70px;
    text-align: center;
    background:
        radial-gradient(circle at top right, #16345f 0%, transparent 40%),
        linear-gradient(180deg, var(--bg2), var(--bg));
}

.hero-content {
    max-width: 900px;
    margin: auto;
}

.hero h1 {
    font-size: clamp(38px, 7vw, 52px);
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero h1 span {
    color: var(--primary);
}

.hero p {
    color: var(--muted);
    font-size: 20px;
    max-width: 700px;
    margin: auto;
}

.hero-badge {
    display: inline-block;
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 30px;
    padding: 7px 18px;
    margin-bottom: 20px;
    font-weight: bold;
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 70px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 45px;
}

.section-title h2 {
    color: var(--primary);
    font-size: 36px;
    margin-bottom: 10px;
}

.section-title p {
    color: var(--muted);
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.safety-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 30px;
    transition: .3s;
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.safety-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
}

.icon {
    font-size: 42px;
    margin-bottom: 15px;
}

.safety-card h3 {
    margin-bottom: 12px;
    font-size: 22px;
}

.safety-card p {
    color: var(--muted);
}

.card-link,
.card-link:link,
.card-link:visited {
    display: inline-block;
    margin-top: auto;
    padding-top: 18px;
    color: var(--primary) !important;
    text-decoration: none;
    font-weight: bold;
    transition: .3s;
}

.card-link:hover,
.card-link:focus {
    color: var(--primary-hover) !important;
    transform: translateX(4px);
}

.card-link:focus-visible,
.button:focus-visible,
nav a:focus-visible,
.logo:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
    border-radius: 4px;
}

.big-rule {
    background: linear-gradient(135deg, #12345b, #0c2542);
    border: 1px solid var(--primary);
    border-radius: 20px;
    padding: 45px;
    text-align: center;
    margin-top: 60px;
}

.big-rule h2 {
    font-size: 34px;
    color: var(--primary);
    margin-bottom: 15px;
}

.big-rule p {
    font-size: 19px;
    color: var(--text);
}

.password-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-top: 30px;
}

.password {
    padding: 25px;
    border-radius: 15px;
}

.good {
    background: rgba(60,255,122,.08);
    border: 1px solid var(--primary);
}

.bad {
    background: rgba(255,70,70,.08);
    border: 1px solid #ff5555;
}

.password h3 {
    margin-bottom: 10px;
}

.good h3 {
    color: var(--primary);
}

.bad h3 {
    color: var(--danger);
}

.check-list {
    max-width: 750px;
    margin: 30px auto 0;
}

.check {
    display: flex;
    gap: 15px;
    align-items: flex-start;
    background: var(--card);
    border: 1px solid var(--border);
    padding: 20px;
    margin-bottom: 15px;
    border-radius: 12px;
}

.check-number {
    background: var(--primary);
    color: #08111f;
    min-width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: bold;
}

.report {
    background: var(--card);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border);
}

.report h2 {
    color: var(--primary);
    margin-bottom: 15px;
}

.report p {
    color: var(--muted);
    max-width: 700px;
    margin: 0 auto 25px;
}

.button,
.button:link,
.button:visited {
    display: inline-block;
    background: var(--primary);
    color: #08111f !important;
    text-decoration: none;
    padding: 13px 28px;
    border-radius: 30px;
    font-weight: bold;
    transition: .3s;
}

.button:hover,
.button:focus {
    background: var(--primary-hover);
    transform: translateY(-3px);
}
/* Donate / Volunteer / Sponsors button group */

.buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 25px;
}

.buttons .btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;

    min-width: 140px;
    padding: 13px 28px;

    background: var(--primary);
    color: #08111f !important;

    text-decoration: none;
    text-align: center;
    font-weight: bold;

    border-radius: 30px;
    transition: .3s;
}

.buttons .btn:link,
.buttons .btn:visited {
    color: #08111f !important;
}

.buttons .btn:hover,
.buttons .btn:focus {
    background: var(--primary-hover);
    transform: translateY(-3px);
}

.lesson-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 30px;
    align-items: start;
}

.lesson-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 30px;
}

.lesson-card h2,
.lesson-card h3 {
    color: var(--primary);
    margin-bottom: 12px;
}

.lesson-card p,
.lesson-card li {
    color: var(--muted);
}

.lesson-card ul {
    padding-left: 22px;
    margin-top: 14px;
}

.lesson-card li + li {
    margin-top: 8px;
}

.tip-box {
    background: linear-gradient(135deg, #12345b, #0c2542);
    border: 1px solid var(--primary);
    border-radius: 18px;
    padding: 28px;
}

.tip-box h3 {
    color: var(--primary);
    margin-bottom: 10px;
}

.back-row {
    margin-top: 30px;
}

footer {
    background: #050b16;
    border-top: 1px solid rgba(255,255,255,.08);
    text-align: center;
    padding: 35px 20px;
    color: #8fa0b4;
}

footer p + p {
    margin-top: 6px;
}

@media (max-width: 700px) {
    .header-container {
        flex-direction: column;
    }

    nav {
        justify-content: center;
        gap: 14px;
    }

    .password-box,
    .lesson-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 50px 20px;
    }

    .big-rule,
    .report,
    .lesson-card,
    .tip-box {
        padding: 25px;
    }
}
/* Back to Cyber Safety Button */

.back-row {
    display: flex;
    justify-content: center;
    margin-top: 25px;
}

.back-row .button,
.back-row .button:link,
.back-row .button:visited {
    display: inline-block;
    background: linear-gradient(
        90deg,
        #00e5ff,
        #7c6cff
    );
    color: #050810;
    text-decoration: none;
    font-weight: 800;
    padding: 13px 25px;
    border-radius: 11px;
    transition: transform .15s, box-shadow .15s;
}

.back-row .button:hover,
.back-row .button:focus {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,229,255,.2);
}