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

body {
    font-family: var(--font-sans);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-sm { padding: 0.5rem 1rem;       font-size: 0.85rem; }
.btn-lg { padding: 0.875rem 1.75rem;  font-size: 1rem; }

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg-primary);
}
.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}
.btn-outline:hover:not(:disabled) {
    background: var(--color-bg-elevated);
    border-color: var(--color-text-secondary);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}
.btn-ghost:hover:not(:disabled) {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-danger {
    background: var(--color-danger);
    color: white;
}
.btn-danger:hover:not(:disabled) {
    background: var(--color-danger-hover);
    transform: translateY(-1px);
}

.btn-danger-ghost {
    background: transparent;
    color: var(--color-danger);
    border: 1px solid var(--color-danger-30);
}
.btn-danger-ghost:hover:not(:disabled) {
    background: var(--color-danger-10);
    border-color: var(--color-danger);
}

.btn-icon      { width: 1em;    height: 1em; }
.btn-icon-left { width: 1.25em; height: 1.25em; margin-right: 0.25rem; }

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Toast */
.copy-tooltip {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-bg-primary);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    animation: tooltipFade 1.5s ease forwards;
    z-index: 1000;
}
.copy-tooltip.toast-warning { background: var(--color-warning); color: white; }
.copy-tooltip.toast-error   { background: var(--color-danger);  color: white; }
.copy-tooltip.toast-success { background: var(--color-accent);  color: white; }

/* shared pill / eyebrow badge:
   One declaration covers all the page-section badges. */
.hero-badge,
.section-badge,
.dashboard-header-badge,
.lectures-header-badge,
.access-mode-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(16, 185, 129, 0.06);
    color: var(--color-accent);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 100px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 1px solid rgba(16, 185, 129, 0.12);
}

/* shared copy-icon button */
.copy-btn,
.copy-cmd-btn,
.split-cred-copy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid rgba(75, 85, 99, 0.25);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}
.copy-btn:hover,
.copy-cmd-btn:hover,
.split-cred-copy:hover {
    background: var(--color-accent-muted);
    border-color: var(--color-accent);
    color: var(--color-accent);
}
.copy-btn      { width: 32px; height: 32px; }
.copy-cmd-btn  { width: 28px; height: 28px; }
.split-cred-copy { width: auto; height: auto; padding: 0.1rem; border: none; }

/* Shared "glowing icon orb" */
.empty-icon,
.split-loading-icon,
.provisioning-orb-core {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    border-radius: 50%;
    background:
        radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.08), transparent 50%),
        linear-gradient(135deg, var(--color-accent-20), var(--color-accent-5));
    border: 1px solid var(--color-accent-30);
    box-shadow:
        0 0 36px rgba(16, 185, 129, 0.22),
        inset 0 2px 10px var(--color-accent-muted);
}
.empty-icon svg,
.split-loading-icon svg,
.provisioning-orb-core svg { color: var(--color-accent); }

/* shared orb pulsing rings */
.empty-icon::before,
.empty-icon::after,
.split-loading-icon::before,
.split-loading-icon::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 1px solid var(--color-accent-30);
    animation: orbRing 2.6s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    pointer-events: none;
}
.empty-icon::after,
.split-loading-icon::after { animation-delay: 1.3s; }

/* shared dot-stage checklist */
.provisioning-step,
.split-loading-stage {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.4rem 0.65rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}
.provisioning-step-marker,
.split-loading-stage-dot {
    width: 10px;
    height: 10px;
    min-width: 10px;
    border-radius: 50%;
    border: 1.5px solid rgba(75, 85, 99, 0.5);
    position: relative;
    transition: all 0.3s ease;
}
.provisioning-step.active,
.split-loading-stage.active {
    color: var(--color-text-primary);
    background: var(--color-accent-5);
}
.provisioning-step.active .provisioning-step-marker,
.split-loading-stage.active .split-loading-stage-dot {
    border-color: var(--color-accent);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}
.provisioning-step.active .provisioning-step-marker::after,
.split-loading-stage.active .split-loading-stage-dot::after {
    content: '';
    position: absolute;
    inset: 2px;
    border-radius: 50%;
    background: var(--color-accent);
    animation: dotPulse 1.2s ease-in-out infinite;
}
.provisioning-step.done,
.split-loading-stage.done { color: var(--color-text-secondary); }
.provisioning-step.done .provisioning-step-marker,
.split-loading-stage.done .split-loading-stage-dot {
    border-color: var(--color-accent);
    background: var(--color-accent);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}
.provisioning-step.done .provisioning-step-marker::after,
.split-loading-stage.done .split-loading-stage-dot::after {
    content: '✓';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.55rem;
    font-weight: 900;
    color: white;
}

/* shared shimmer progress bar */
.provisioning-bar,
.split-loading-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 100px;
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5);
}
.provisioning-bar-fill,
.split-loading-progress-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--color-info), var(--color-accent) 50%, var(--color-accent-hover));
    background-size: 200% 100%;
    border-radius: 100px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    animation: shimmer 2s linear infinite;
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.5);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.15s ease;
}
.modal-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
}
.modal-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.15);
    border-radius: 50%;
}
.modal-icon svg { width: 24px; height: 24px; color: var(--color-danger); }
.modal-card h3  { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.5rem; }
.modal-card p   {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}
.modal-actions     { display: flex; gap: 0.75rem; justify-content: center; }
.modal-actions .btn { min-width: 120px; }

.terminating-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(6px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    z-index: 9998;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Footer */
.site-footer {
    padding: 1.5rem 2rem;
    text-align: center;
    border-top: 1px solid var(--color-border-light);
    background: rgba(10, 15, 26, 0.6);
}
.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.8rem;
    transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--color-accent); }
.footer-divider { color: var(--color-border); font-size: 0.8rem; user-select: none; }

/* Animations */
@keyframes spin   { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { opacity: 1;   transform: scale(1); }
    50%      { opacity: 0.5; transform: scale(0.8); }
}
@keyframes orbRing {
    0%   { transform: scale(0.85); opacity: 0.85; }
    80%  { transform: scale(1.4);  opacity: 0; }
    100% { transform: scale(1.4);  opacity: 0; }
}
@keyframes dotPulse {
    0%, 100% { opacity: 1;    transform: scale(1); }
    50%      { opacity: 0.55; transform: scale(0.7); }
}
@keyframes shimmer {
    0%   { background-position:  100% 0; }
    100% { background-position: -100% 0; }
}
@keyframes tooltipFade {
    0%   { opacity: 0; transform: translateX(-50%) translateY(10px); }
    15%  { opacity: 1; transform: translateX(-50%) translateY(0); }
    85%  { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(-10px); }
}

@media (hover: none) and (pointer: coarse) {
    .btn:hover:not(:disabled)  { transform: none; }
    .btn:active:not(:disabled) { transform: scale(0.98); }
}