/* ═══════════════════════════════════════════════════════
   bi-app.net — Component Styles
   ═══════════════════════════════════════════════════════ */

/* ── Navbar ── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-sticky);
    padding: var(--space-md) 0;
    background: var(--bg-nav);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-md);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.navbar__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
}

.navbar__logo svg {
    width: 32px;
    height: 32px;
}

.navbar__logo .logo-bi {
    color: var(--brand-turquoise);
}

.navbar__nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.navbar__nav a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.navbar__nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-turquoise);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.navbar__nav a:hover,
.navbar__nav a.active {
    color: var(--text-primary);
}

.navbar__nav a:hover::after,
.navbar__nav a.active::after {
    width: 100%;
}

.navbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Theme Toggle */
.theme-toggle {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: 1.1rem;
}

.theme-toggle:hover {
    border-color: var(--brand-turquoise);
    color: var(--brand-turquoise);
    box-shadow: var(--shadow-glow);
}

[data-theme="dark"] .theme-toggle .icon-sun { display: inline; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: inline; }

/* Mobile Menu */
.navbar__mobile-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.navbar__mobile-toggle span {
    width: 20px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.navbar__mobile-toggle.open span:nth-child(1) { transform: rotate(45deg) translateY(5px); }
.navbar__mobile-toggle.open span:nth-child(2) { opacity: 0; }
.navbar__mobile-toggle.open span:nth-child(3) { transform: rotate(-45deg) translateY(-5px); }

@media (max-width: 768px) {
    .navbar__mobile-toggle { display: flex; }
    .navbar__nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        padding: var(--space-lg);
        background: var(--bg-nav);
        backdrop-filter: var(--glass-blur);
        border-bottom: 1px solid var(--glass-border);
        gap: var(--space-md);
    }
    .navbar__nav.open { display: flex; }
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 28px;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
}

.btn--primary {
    background: var(--gradient-cta);
    color: white;
    box-shadow: var(--shadow-md);
}
.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    color: white;
}

.btn--secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}
.btn--secondary:hover {
    border-color: var(--brand-turquoise);
    color: var(--brand-turquoise);
}

.btn--ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 10px 20px;
}
.btn--ghost:hover { color: var(--brand-turquoise); }

.btn--sm { padding: 8px 18px; font-size: 0.8rem; }
.btn--lg { padding: 16px 36px; font-size: 1rem; }
.btn--full { width: 100%; }

.btn--icon {
    width: 42px;
    height: 42px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ── Cards ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card:hover::before { opacity: 1; }

.card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    font-size: 1.5rem;
}

.card__icon svg {
    width: 28px;
    height: 28px;
}

.card__title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.card__desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-secondary);
}

.card__tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: var(--gradient-card);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--brand-turquoise-light);
}

/* ── Tool Card (specific) ── */
.tool-card { cursor: pointer; }
.tool-card .card__icon {
    background: var(--gradient-card);
    border: 1px solid var(--border-accent);
}

/* ── Code Block ── */
.code-block {
    position: relative;
    margin: var(--space-lg) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-primary);
}

.code-block__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-primary);
    font-size: 0.8rem;
}

.code-block__lang {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand-turquoise);
    font-weight: 600;
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
}

.code-block__copy {
    padding: 4px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.75rem;
    font-family: var(--font-primary);
    transition: all var(--transition-fast);
}

.code-block__copy:hover {
    border-color: var(--brand-turquoise);
    color: var(--brand-turquoise);
}

.code-block pre {
    padding: var(--space-lg);
    overflow-x: auto;
    background: var(--bg-code);
    margin: 0;
}

.code-block code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--text-primary);
}

/* ── Tabs ── */
.tabs {
    display: flex;
    gap: var(--space-xs);
    border-bottom: 1px solid var(--border-primary);
    margin-bottom: var(--space-xl);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab {
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-family: var(--font-primary);
}

.tab:hover { color: var(--text-primary); }
.tab.active {
    color: var(--brand-turquoise);
    border-bottom-color: var(--brand-turquoise);
}

.tab-content { display: none; animation: fadeIn 0.3s ease; }
.tab-content.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Badge ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge--microsoft { background: rgba(0,120,212,0.15); color: #4da3ff; }
.badge--sap { background: rgba(15,170,255,0.15); color: #0faaff; }
.badge--pinned { background: rgba(255,215,64,0.15); color: var(--brand-gold); }
.badge--new { background: rgba(0,230,118,0.15); color: var(--brand-success); }

/* ── Modal ── */
.modal-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    animation: fadeIn 0.2s ease;
}

.modal-backdrop.open { display: flex; align-items: center; justify-content: center; }

.modal {
    background: var(--bg-modal);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    max-width: 600px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    z-index: var(--z-modal);
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.modal__close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}
.modal__close:hover { color: var(--brand-error); }

/* ── Form ── */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--brand-turquoise);
    box-shadow: 0 0 0 3px rgba(0,188,212,0.15);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* ── Toast ── */
.toast-container {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    padding: 14px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    min-width: 280px;
}

.toast--success { border-left: 3px solid var(--brand-success); }
.toast--error { border-left: 3px solid var(--brand-error); }
.toast--info { border-left: 3px solid var(--brand-turquoise); }

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ── iFrame Container (Power BI) ── */
.iframe-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-primary);
    background: var(--bg-tertiary);
}

.iframe-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.iframe-container__fullscreen {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    z-index: 10;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(0,0,0,0.6);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    opacity: 0;
}
.iframe-container:hover .iframe-container__fullscreen { opacity: 1; }
.iframe-container__fullscreen:hover { background: var(--brand-turquoise); }

/* ── Stat Counter ── */
.stat-counter {
    text-align: center;
    padding: var(--space-xl);
}

.stat-counter__value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--brand-turquoise);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-counter__label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ── Avatar ── */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--gradient-accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.avatar--sm { width: 32px; height: 32px; font-size: 0.75rem; }
.avatar--lg { width: 56px; height: 56px; font-size: 1.2rem; }

/* ── Search ── */
.search-box {
    position: relative;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    background: var(--bg-input);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--brand-turquoise);
    box-shadow: 0 0 0 3px rgba(0,188,212,0.15);
}

.search-box__icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: var(--space-3xl);
    color: var(--text-tertiary);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

/* ── Loading ── */
.loader {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
}

.loader__spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-primary);
    border-top-color: var(--brand-turquoise);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ── Skill Bar ── */
.skill-bar {
    margin-bottom: var(--space-md);
}

.skill-bar__header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-xs);
    font-size: 0.85rem;
}

.skill-bar__name { font-weight: 600; color: var(--text-primary); }
.skill-bar__value { color: var(--text-secondary); }

.skill-bar__track {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.skill-bar__fill {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
    transition: width 1s ease;
    width: 0;
}

/* ── Timeline ── */
.timeline {
    position: relative;
    padding-left: var(--space-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-primary);
}

.timeline__item {
    position: relative;
    margin-bottom: var(--space-xl);
    padding-left: var(--space-lg);
}

.timeline__item::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--brand-turquoise);
    border: 3px solid var(--bg-primary);
}

.timeline__date {
    font-size: 0.8rem;
    color: var(--brand-turquoise);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.timeline__title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.timeline__desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ── Pagination ── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.pagination__btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
}

.pagination__btn:hover,
.pagination__btn.active {
    border-color: var(--brand-turquoise);
    color: var(--brand-turquoise);
    background: rgba(0,188,212,0.1);
}

/* ── Language Switcher ── */
.lang-switcher {
    position: relative;
    z-index: 100;
}

.lang-switcher__current {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.lang-switcher__current:hover {
    border-color: var(--brand-turquoise);
    box-shadow: var(--shadow-glow);
}

.lang-switcher__code {
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.lang-switcher__arrow {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    transition: transform var(--transition-fast);
}

.lang-switcher.open .lang-switcher__arrow {
    transform: rotate(180deg);
}

.lang-switcher__dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 170px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    overflow: hidden;
    backdrop-filter: var(--glass-blur);
}

.lang-switcher.open .lang-switcher__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-switcher__option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    text-align: left;
}

.lang-switcher__option:hover {
    background: rgba(0,188,212,0.08);
    color: var(--text-primary);
}

.lang-switcher__option.active {
    color: var(--brand-turquoise);
    background: rgba(0,188,212,0.1);
    font-weight: 700;
}

.lang-switcher__option.active::after {
    content: '✓';
    margin-left: auto;
    color: var(--brand-turquoise);
    font-size: 0.8rem;
}

.lang-switcher__flag {
    font-size: 1.2rem;
    line-height: 1;
}

.lang-switcher__label {
    flex: 1;
}

@media (max-width: 768px) {
    .lang-switcher__label { display: none; }
    .lang-switcher__dropdown { min-width: 150px; }
    .lang-switcher__dropdown .lang-switcher__label { display: block; }
}