.credentials {
    background: var(--bg-secondary);
    padding: 8rem 9% 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.toggle-buttons {
    display: flex;
    justify-content: center;
    gap: 0;
    margin: 0 auto 5rem;
    background: var(--card-bg);
    padding: 0.5rem;
    border-radius: 1rem;
    width: fit-content;
    border: 1px solid var(--border-subtle);
}

.toggle-btn {
    padding: 0.9rem 2.8rem;
    background: transparent;
    border: none;
    border-radius: 0.7rem;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.3s ease;
}

.toggle-btn i {
    font-size: 1.7rem;
}

.toggle-btn.active {
    background: var(--main-color);
    color: #0a1628;
    font-weight: 700;
    box-shadow: 0 4px 18px var(--accent-glow);
}

.toggle-btn:not(.active):hover {
    color: var(--main-color);
    background: var(--accent-glow-soft);
}

/* Sections */
.content-section {
    display: none;
}

.active-section {
    display: block;
    animation: fadeIn 0.5s ease-in-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* CERTIFICATES GRID */
.cred-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.cred-box {
    background: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 1.4rem;
    border: 1px solid var(--border-subtle);
    transition: all 0.3s ease;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
}

.cred-box:hover {
    border-color: var(--border-color);
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--accent-glow-soft);
}

.cred-icon {
    width: 5.4rem;
    height: 5.4rem;
    background: var(--accent-glow-soft);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.4rem;
    color: var(--main-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.cred-box:hover .cred-icon {
    background: var(--main-color);
    color: #0a1628;
    border-color: var(--main-color);
    box-shadow: 0 4px 16px var(--accent-glow);
}

.cred-box h3 {
    font-size: 1.65rem;
    font-weight: 600;
    color: var(--text-color);
}

.view-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.2rem;
    background: transparent;
    color: var(--main-color);
    border: 1.5px solid var(--main-color);
    padding: 0.7rem 1.8rem;
    border-radius: 10rem;
    font-size: 1.3rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.view-btn:hover {
    background: var(--main-color);
    color: #0a1628;
    box-shadow: 0 4px 16px var(--accent-glow);
    transform: scale(1.04);
}

/* ACHIEVEMENTS GRID */
.cred-container2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.4rem;
    align-items: start;
}

/* Community Card */
.community-box {
    background: var(--card-bg);
    border-radius: 1.4rem;
    padding: 3rem 2.5rem;
    border: 1px solid var(--border-subtle);
    border-left: 4px solid var(--main-color);
    transition: all 0.3s ease;
    height: 100%;
}

.community-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--accent-glow-soft);
}

.community-box h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--main-color);
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.community-box p {
    font-size: 1.45rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

   /* LEETCODE CARD  */
.leetcode-box {
    background: var(--card-bg);
    border-radius: 1.6rem;
    padding: 3rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 0 30px var(--accent-glow-soft);
    transition: all 0.3s ease;
}

.leetcode-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 50px var(--accent-glow-medium);
}

/* Header row */
.leet-header {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-subtle);
}

.leet-logo {
    width: 4.2rem;
    height: 4.2rem;
    background: url("https://leetcode.com/static/images/LeetCode_logo.png") center/contain no-repeat;
    flex-shrink: 0;
}

.leet-username {
    flex: 1;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--main-color);
    transition: opacity 0.3s;
}

.leet-username:hover {
    opacity: 0.75;
}

.leet-rank {
    font-size: 1.3rem;
    color: var(--text-color);
    font-weight: 700;
    background: var(--accent-glow-soft);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.4rem;
    border-radius: 10rem;
}

/* Main content: pie + stats */
.leet-content {
    display: flex;
    align-items: center;
    gap: 3.5rem;
}

/* Donut chart */
.leet-pie {
    flex-shrink: 0;
    position: relative;
    width: 15rem;
    height: 15rem;
    border-radius: 50%;
    background: conic-gradient(#2db88a 0deg 0deg,
            #e6b000 0deg 0deg,
            #e05a5a 0deg 360deg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 24px var(--accent-glow-soft);
}

.leet-pie-inner {
    width: 9.5rem;
    height: 9.5rem;
    background: var(--card-bg);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--main-color);
    line-height: 1;
}

.leet-pie-inner small {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
    font-family: 'Poppins', sans-serif;
    margin-top: 0.3rem;
}

/* Stats right */
.leet-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.leet-stat-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 1.6rem;
    background: var(--bg-color);
    border: 1px solid var(--border-subtle);
    border-radius: 1rem;
    width: 100%;
    transition: all 0.3s ease;
}

.leet-stat-row:hover {
    border-color: var(--border-color);
    transform: translateX(4px);
}

.leet-dot {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.leet-dot.easy {
    background: #2db88a;
    box-shadow: 0 0 6px #2db88a88;
}

.leet-dot.medium {
    background: #e6b000;
    box-shadow: 0 0 6px #e6b00088;
}

.leet-dot.hard {
    background: #e05a5a;
    box-shadow: 0 0 6px #e05a5a88;
}

.leet-stat-label {
    font-size: 1.4rem;
    font-weight: 600;
    width: 7.5rem;
}

.easy-text .leet-stat-label {
    color: #2db88a;
}

.medium-text .leet-stat-label {
    color: #e6b000;
}

.hard-text .leet-stat-label {
    color: #e05a5a;
}

.easy-text,
.medium-text,
.hard-text {
    display: flex;
    align-items: center;
}

.easy-text>span:first-child,
.medium-text>span:first-child,
.hard-text>span:first-child {
    margin-right: 1.2rem;
}

.leet-right span {
    color: var(--text-color);
    font-weight: 600;
    font-size: 1.4rem;
}

@media (max-width: 1024px) {
    .cred-container2 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .cred-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .cred-container {
        grid-template-columns: 1fr;
    }

    .leet-content {
        flex-direction: column;
        align-items: center;
    }

    .leet-right {
        width: 100%;
    }
}