/* ==========================================================================
   DEBIAN SETUP GUIDE STYLESHEET
   Sharp Linux Terminal Aesthetic
   ========================================================================== */

:root {
    --debian-red: #d70a53;
    --debian-crimson: #ff2d6f;
    --debian-glow: rgba(215, 10, 83, 0.45);
}

.deb-tool-icon.active,
.deb-tool-icon.active i {
    background: #d70a53 !important;
    border-color: #ff2d6f !important;
    color: #ffffff !important;
    box-shadow: 0 0 18px rgba(215, 10, 83, 0.45) !important;
}

.narrow-container {
    max-width: 860px !important;
    margin: 0 auto;
}

.deb-hero {
    padding-top: 6.5rem;
    padding-bottom: 2rem;
    text-align: center;
}

.deb-header {
    margin-bottom: 2.5rem;
}

/* --- Tabs Container --- */
.tabs-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.8rem;
    flex-wrap: wrap;
}

.tab-btn {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(22, 160, 133, 0.25);
    color: var(--muted-color);
    padding: 0.85rem 1.8rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.tab-btn:hover {
    border-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(22, 160, 133, 0.25);
}

.tab-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(22, 160, 133, 0.4);
}

.tab-content {
    display: none;
    animation: fadeInTab 0.4s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeInTab {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Setup Steps --- */
.setup-step {
    display: grid;
    grid-template-columns: 50px 1fr;
    gap: 1.6rem;
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 1.8rem;
    margin-bottom: 1.8rem;
    position: relative;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
    transition: var(--transition);
}

.setup-step:hover {
    border-color: rgba(22, 160, 133, 0.4);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45), 0 0 1px rgba(22, 160, 133, 0.3);
}

.step-badge {
    width: 48px;
    height: 48px;
    background: rgba(11, 18, 32, 0.9);
    border: 1px solid rgba(22, 160, 133, 0.45);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    box-shadow: 0 0 16px rgba(22, 160, 133, 0.25);
    flex-shrink: 0;
}

.step-content {
    min-width: 0;
}

.step-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 0.6rem;
    flex-wrap: wrap;
}

.step-content h2 {
    font-size: 1.28rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
}

.step-content p {
    color: var(--muted-color);
    font-size: 0.94rem;
    line-height: 1.6;
    margin-bottom: 1.2rem;
}

.step-instruction {
    font-weight: 600;
    font-size: 0.88rem;
    color: #e2e8f0 !important;
    margin-bottom: 0.5rem !important;
    display: block;
}

/* Keyboard badge */
.kbd {
    display: inline-block;
    padding: 2px 7px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: #ffffff;
    background-color: #1e293b;
    border: 1px solid #475569;
    border-bottom: 3px solid #334155;
    border-radius: 5px;
    margin: 0 2px;
    vertical-align: middle;
}

/* --- Terminal Code Blocks --- */
.code-block {
    background: #050811;
    border: 1px solid rgba(22, 160, 133, 0.25);
    border-radius: 10px;
    margin-bottom: 1.4rem;
    width: 100%;
    overflow: hidden;
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.6);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.55rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--muted-color);
}

.code-header span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--muted-color);
    padding: 4px 10px;
    border-radius: 5px;
    font-size: 0.78rem;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 5px;
}

.copy-btn:hover {
    color: #ffffff;
    background: rgba(22, 160, 133, 0.25);
    border-color: var(--primary-color);
}

.code-block pre {
    padding: 1.1rem 1.2rem;
    margin: 0;
    overflow-x: auto;
    white-space: pre;
    width: 100%;
    box-sizing: border-box;
}

.code-block pre::-webkit-scrollbar {
    height: 6px;
}
.code-block pre::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}
.code-block pre::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

.code-block code {
    font-family: var(--font-mono);
    color: #34d399;
    font-size: 0.88rem;
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 768px) {
    .setup-step {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.4rem;
    }
    .step-badge {
        width: 36px;
        height: 36px;
        font-size: 0.95rem;
    }
}