/* ==========================================================================
   100 Days of DevOps Challenge - Documentation Stylesheet
   SavannaStack Technologies Capstone Project
   ========================================================================== */

/* Documentation Layout Specifics */
.challenge-body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.7;
    padding-top: var(--header-height);
}

.challenge-header {
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px);
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    padding: 1.5rem 0 0.5rem 0;
}

.breadcrumb-nav a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.breadcrumb-nav a:hover {
    color: var(--primary);
}

.breadcrumb-separator {
    color: var(--border-subtle);
}

/* Phase Navigation Bar (Top switcher) */
.phase-nav-container {
    overflow-x: auto;
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-subtle);
}

.phase-nav-list {
    display: flex;
    gap: 0.65rem;
    min-width: max-content;
}

.phase-nav-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1rem;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    font-size: 0.813rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.phase-nav-item:hover {
    background: var(--primary-subtle);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.phase-nav-item.active {
    background: var(--primary);
    border-color: transparent;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3);
}

/* Phase Hero Header */
.phase-hero {
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.phase-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: var(--gradient-primary);
}

.phase-meta-badges {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.badge-phase-num {
    background: var(--primary-subtle);
    color: #047857;
    border: 1px solid var(--primary-border);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.813rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-duration {
    background: #f0fdfa;
    color: var(--secondary);
    border: 1px solid #99f6e4;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.813rem;
    font-weight: 600;
}

.badge-company {
    background: var(--bg-secondary);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.813rem;
    font-weight: 500;
}

.phase-hero-title {
    font-size: clamp(1.85rem, 3.5vw, 2.65rem);
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.phase-hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 850px;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.scenario-callout {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    margin-top: 1.25rem;
}

.scenario-callout strong {
    color: var(--primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 0.35rem;
}

/* --------------------------------------------------------------------------
   Phases Grid (2 Cards Per Row)
   -------------------------------------------------------------------------- */
.phases_grid_2col {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 5rem;
}

@media screen and (max-width: 868px) {
    .phases_grid_2col {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.phase_tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 1.5rem;
}

.phase_tags .work_tag {
    font-size: 0.688rem;
    padding: 0.16rem 0.5rem;
    text-transform: lowercase;
}

/* Documentation Content Grid */
.doc-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    margin-bottom: 4rem;
}

@media screen and (max-width: 992px) {
    .doc-layout {
        grid-template-columns: 1fr;
    }
}

/* Step Cards & Instructions */
.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    margin-bottom: 2.5rem;
    backdrop-filter: blur(12px);
    transition: border-color var(--transition-normal);
}

.step-card:hover {
    border-color: var(--border-hover);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.step-number {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.step-title {
    font-size: 1.35rem;
    color: #ffffff;
}

.step-rationale {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.65;
}

/* Terminal & Code Blocks */
.terminal-block {
    background: #06090e;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    margin: 1.25rem 0;
    overflow: hidden;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
}

.terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.04);
    padding: 0.65rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-body {
    padding: 1.25rem;
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.7;
    color: #e2e8f0;
}

.terminal-body pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-all;
}

.code-comment {
    color: #64748b;
    font-style: italic;
}

.code-cmd {
    color: #38bdf8;
    font-weight: 600;
}

.code-output {
    color: #94a3b8;
}

/* Callout Boxes */
.callout {
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin: 1.5rem 0;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.callout-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    line-height: 1;
}

.callout-info {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.25);
    color: #e0e7ff;
}
.callout-info .callout-icon { color: var(--primary-light); }

.callout-warning {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #fef3c7;
}
.callout-warning .callout-icon { color: #f59e0b; }

.callout-success {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #d1fae5;
}
.callout-success .callout-icon { color: #10b981; }

/* Sticky Sidebar Widget */
.doc-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.sidebar-title {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.sidebar-list li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-list li i {
    color: var(--secondary);
    font-size: 1rem;
}

.sidebar-btn {
    width: 100%;
    margin-top: 1rem;
}

/* Phase Footer Navigation (Prev / Next) */
.phase-footer-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    padding-top: 3rem;
    margin-top: 4rem;
    border-top: 1px solid var(--border-subtle);
}

.nav-prev-btn, .nav-next-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.nav-prev-btn:hover, .nav-next-btn:hover {
    border-color: var(--border-hover);
    background: rgba(99, 102, 241, 0.12);
    color: #ffffff;
}

.nav-next-btn {
    margin-left: auto;
}

/* Disabled State for Unreleased Phase Buttons */
.btn:disabled,
.btn.disabled,
.phase_btn:disabled,
.phase_btn.disabled {
    opacity: 0.45;
    cursor: not-allowed !important;
    pointer-events: none !important;
    border-color: rgba(255, 255, 255, 0.12) !important;
    color: var(--text-muted) !important;
    background: rgba(255, 255, 255, 0.03) !important;
    box-shadow: none !important;
    transform: none !important;
}