/* ═══════════════════════════════════════════════════════
   bi-app.net — Page-specific Styles
   ═══════════════════════════════════════════════════════ */

/* ── HERO ── */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 0;
}

.hero__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 40%, rgba(0,188,212,0.12) 0%, transparent 50%),
                radial-gradient(circle at 20% 80%, rgba(26,35,126,0.2) 0%, transparent 40%);
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero__label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 6px 16px;
    background: rgba(0,188,212,0.1);
    border: 1px solid rgba(0,188,212,0.25);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--brand-turquoise-light);
    margin-bottom: var(--space-lg);
    animation: fadeInDown 0.6s ease;
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero__desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 560px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero__actions {
    display: flex;
    gap: var(--space-md);
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero__visual {
    position: absolute;
    right: -5%;
    top: 50%;
    transform: translateY(-50%);
    width: 500px;
    height: 500px;
    opacity: 0.15;
    z-index: 0;
}

.hero__visual svg {
    width: 100%;
    height: 100%;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

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

/* ── TOOLS PAGE ── */
.tools-filter {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.tools-filter__tabs {
    display: flex;
    gap: var(--space-xs);
}

.filter-tab {
    padding: 8px 20px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
}

.filter-tab:hover,
.filter-tab.active {
    border-color: var(--brand-turquoise);
    color: var(--brand-turquoise);
    background: rgba(0,188,212,0.08);
}

/* ── TOOL DETAIL PAGE ── */
.tool-header {
    padding: 120px 0 var(--space-2xl);
    position: relative;
}

.tool-header__meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.tool-header__icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-card);
    border: 1px solid var(--border-accent);
}

.tool-header__icon svg {
    width: 32px;
    height: 32px;
}

.tool-header h1 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.tool-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-xl);
}

.tool-content__main {
    min-width: 0;
}

.tool-content__sidebar {
    position: sticky;
    top: 100px;
    align-self: start;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.sidebar-card h4 {
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.sidebar-card ul {
    list-style: none;
}

.sidebar-card li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-secondary);
}

.sidebar-card li:last-child { border-bottom: none; }

.sidebar-card a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}
.sidebar-card a:hover { color: var(--brand-turquoise); }

/* ── TOOL CONTENT ── */
.tool-section {
    margin-bottom: var(--space-2xl);
}

.tool-section h3 {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--border-accent);
    display: inline-block;
}

.tool-section h4 {
    margin: var(--space-lg) 0 var(--space-sm);
    color: var(--brand-turquoise);
}

.tool-section ul {
    padding-left: var(--space-lg);
    margin-bottom: var(--space-md);
}

.tool-section li {
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

.tool-section code {
    padding: 2px 8px;
    background: var(--bg-code);
    border-radius: var(--radius-sm);
    font-size: 0.85em;
    color: var(--brand-turquoise);
}

.tool-section strong {
    color: var(--text-primary);
}

/* ── FORUM PAGE ── */
.forum-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.topic-card {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.topic-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
}

.topic-card__body { flex: 1; min-width: 0; }

.topic-card__title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.topic-card__excerpt {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--space-sm);
}

.topic-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.topic-card__stats {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    min-width: 60px;
    text-align: center;
}

.topic-card__stats span:first-child {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.topic-card__stats span:last-child {
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

/* ── FORUM TOPIC DETAIL ── */
.topic-detail {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.topic-detail__header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-secondary);
}

.topic-detail__content {
    line-height: 1.8;
    color: var(--text-secondary);
}

.reply-card {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-secondary);
}

.reply-card:last-child { border-bottom: none; }

/* ── POWER BI PAGE ── */
.report-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.report-card:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-lg);
}

.report-card__embed {
    position: relative;
    padding-top: 56.25%;
    background: var(--bg-tertiary);
}

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

.report-card__info {
    padding: var(--space-lg);
}

.report-card__title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.report-card__desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ── HAKKIMDA (ABOUT/CV) PAGE ── */
.about-section-hero {
    padding-top: 80px;
}

.about-hero {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-2xl);
    align-items: center;
    padding: 60px 0 var(--space-3xl);
}

.about-hero__photo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-avatar-ring {
    position: relative;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    padding: 4px;
    background: conic-gradient(var(--brand-turquoise), var(--brand-navy), var(--brand-turquoise-light), var(--brand-turquoise));
    animation: avatar-spin 8s linear infinite;
}

@keyframes avatar-spin {
    from { background: conic-gradient(from 0deg, var(--brand-turquoise), var(--brand-navy), var(--brand-turquoise-light), var(--brand-turquoise)); }
    to { background: conic-gradient(from 360deg, var(--brand-turquoise), var(--brand-navy), var(--brand-turquoise-light), var(--brand-turquoise)); }
}

.about-avatar-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-turquoise);
    overflow: hidden;
}

.about-avatar-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-hero__info h1 { margin-bottom: var(--space-sm); font-size: clamp(2rem, 5vw, 3rem); }
.about-hero__info .subtitle {
    font-size: 1.15rem;
    color: var(--brand-turquoise);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

/* Social Links */
.about-hero__social {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    border-color: var(--brand-turquoise);
    color: var(--brand-turquoise);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* Skills Layout */
.skills-layout {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.radar-card {
    position: sticky;
    top: 100px;
}

.radar-card canvas {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    height: auto !important;
}

.skills-bars-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Tech Tags */
.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    cursor: default;
}

.tech-tag:hover {
    border-color: var(--brand-turquoise);
    color: var(--brand-turquoise);
    background: rgba(0,188,212,0.08);
}

/* Timeline Enhancement */
.timeline__company {
    font-size: 0.85rem;
    color: var(--brand-turquoise-light);
    font-weight: 600;
    margin-bottom: 2px;
    opacity: 0.9;
}

.timeline__desc ul {
    list-style: none;
    padding: 0;
    margin: var(--space-sm) 0 0;
}

.timeline__desc li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-xs);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.timeline__desc li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--brand-turquoise);
    font-weight: bold;
}

/* Education Cards */
.edu-card {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.edu-card__icon {
    font-size: 2rem;
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-card);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-md);
}

.edu-card__content { flex: 1; }

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

.edu-card__school {
    font-size: 0.9rem;
    color: var(--brand-turquoise-light);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

/* Project Cards */
.project-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

/* ── CONTACT PAGE ── */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
}

.contact-info-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

.contact-info-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--gradient-card);
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-turquoise);
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* ── LOGIN/REGISTER PAGE ── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
}

.auth-card h2 {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-tabs {
    display: flex;
    margin-bottom: var(--space-xl);
    border-bottom: 1px solid var(--border-primary);
}

.auth-tab {
    flex: 1;
    text-align: center;
    padding: var(--space-md);
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: var(--font-primary);
    font-size: 0.95rem;
}
.auth-tab.active {
    color: var(--brand-turquoise);
    border-bottom-color: var(--brand-turquoise);
}

/* ── ADMIN ── */
.admin-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
    padding-top: 65px;
}

.admin-sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-primary);
    padding: var(--space-lg);
}

.admin-sidebar__nav {
    list-style: none;
}

.admin-sidebar__nav li {
    margin-bottom: var(--space-xs);
}

.admin-sidebar__nav a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.admin-sidebar__nav a:hover,
.admin-sidebar__nav a.active {
    background: var(--gradient-card);
    color: var(--brand-turquoise);
}

.admin-content {
    padding: var(--space-xl);
    overflow-y: auto;
}

.admin-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.admin-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
}

.admin-stat-card__value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--brand-turquoise);
}

.admin-stat-card__label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.admin-table th,
.admin-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-secondary);
    font-size: 0.9rem;
}

.admin-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-table td { color: var(--text-secondary); }

.admin-table tr:hover td {
    background: var(--bg-card-hover);
}

/* ── Responsive ── */
@media (max-width: 968px) {
    .tool-content { grid-template-columns: 1fr; }
    .tool-content__sidebar { position: static; }
    .about-hero { grid-template-columns: 1fr; text-align: center; }
    .about-hero__photo { justify-content: center; }
    .about-hero__social { justify-content: center; }
    .skills-layout { grid-template-columns: 1fr; }
    .radar-card { position: static; }
    .edu-card { flex-direction: column; text-align: center; }
    .edu-card__icon { margin: 0 auto; }
    .contact-grid { grid-template-columns: 1fr; }
    .admin-layout { grid-template-columns: 1fr; }
    .admin-sidebar { display: none; }
}

@media (max-width: 768px) {
    .hero { min-height: auto; padding: 120px 0 var(--space-3xl); }
    .hero__actions { flex-direction: column; }
    .hero__visual { display: none; }
    .topic-card { flex-direction: column; }
    .topic-card__stats { flex-direction: row; min-width: auto; }
    .about-avatar-ring { width: 180px; height: 180px; }
    .about-hero { padding: 40px 0 var(--space-2xl); }
}