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var(--color-border)}.event-card-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);margin-bottom:var(--space-8);color:var(--color-text)}.event-card-meta{display:flex;gap:var(--space-16);margin-bottom:var(--space-12);font-size:var(--font-size-sm);color:var(--color-text-secondary);flex-wrap:wrap;align-items:center}.event-card-meta-item{display:inline-flex;align-items:center;gap:var(--space-8)}.event-card-department{display:inline-flex;align-items:center;gap:var(--space-8);background:var(--color-primary-light);color:var(--color-primary);padding:var(--space-4) var(--space-8);border-radius:var(--radius-base);font-weight:var(--font-weight-medium)}.event-card-body{padding:var(--space-20)}.event-card-description{color:var(--color-text-secondary);margin-bottom:var(--space-16);line-height:1.6}.event-card-actions{display:flex;justify-content:space-between;align-items:center}.post-card-actions{display:flex;align-items:center;gap:var(--space-8);justify-content:flex-end;flex-wrap:wrap}.filters{display:flex;gap:var(--space-16);margin-bottom:var(--space-24);flex-wrap:wrap}.filters .form-control{min-width:200px}.hackfinder-tabs{display:flex;gap:var(--space-8);margin-bottom:var(--space-24);border-bottom:1px solid var(--color-border)}.tab-btn{display:inline-flex;align-items:center;gap:var(--space-8);padding:var(--space-12) var(--space-20);background:none;border:none;font-size:var(--font-size-base);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);cursor:pointer;border-bottom:2px solid transparent;transition:all var(--duration-fast) var(--ease-standard)}.tab-btn:hover,.tab-btn.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.tab-pane{display:none}.tab-pane.active{display:block}.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(400px,1fr));gap:var(--space-24)}.post-card{background:var(--color-surface);border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm);padding:var(--space-20);transition:all var(--duration-normal) var(--ease-standard)}.post-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.post-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-16)}.post-card-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text);margin-bottom:var(--space-4)}.post-card-type{display:inline-flex;align-items:center;gap:var(--space-6);background:var(--color-primary);color:#fff;padding:var(--space-4) var(--space-8);border-radius:var(--radius-base);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);text-transform:uppercase}.post-card-description{color:var(--color-text-secondary);margin-bottom:var(--space-16);line-height:1.6}.post-card-skills{display:flex;flex-wrap:wrap;gap:var(--space-8);margin-bottom:var(--space-16)}.skill-tag{background:var(--color-secondary);color:var(--color-text);padding:var(--space-4) var(--space-8);border-radius:var(--radius-base);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium)}.post-card-footer{display:flex;justify-content:space-between;align-items:center;padding-top:var(--space-16);border-top:1px solid var(--color-border)}.post-card-author{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.post-card-contact{display:inline-flex;align-items:center;gap:var(--space-6);font-size:var(--font-size-sm);color:var(--color-primary);font-weight:var(--font-weight-medium)}.admin-section{margin-bottom:var(--space-40)}.admin-section-header{display:flex;align-items:center;gap:var(--space-12);margin-bottom:var(--space-20)}.admin-section-header h2{margin:0}.admin-count{display:inline-flex;align-items:center;justify-content:center;min-width:32px;padding:4px 10px;border-radius:var(--radius-full);background-color:var(--color-primary-light);color:var(--color-primary-active);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold)}.admin-grid{display:grid;grid-template-columns:1fr;gap:var(--space-24)}@media (min-width: 768px){.admin-grid{grid-template-columns:repeat(auto-fill,minmax(380px,1fr))}}.admin-card{background:var(--color-surface);border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm);overflow:hidden}.admin-card-body{padding:var(--space-24);display:flex;flex-direction:column;gap:var(--space-16)}.admin-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--space-16)}.admin-card-header h3{margin:0 0 var(--space-4) 0;color:var(--color-text)}.admin-card-meta{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-12);color:var(--color-text-secondary);font-size:var(--font-size-sm)}.admin-card-meta-item{display:inline-flex;align-items:center;gap:var(--space-6)}.admin-card-description{color:var(--color-text-secondary);line-height:1.6}.admin-badge{background:var(--color-primary-light);color:var(--color-primary);padding:var(--space-4) var(--space-8);border-radius:var(--radius-base);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase}.admin-skills{display:flex;flex-wrap:wrap;gap:var(--space-8)}.admin-details{display:grid;gap:var(--space-12)}.admin-details div{display:flex;flex-direction:column;gap:var(--space-2)}.admin-details dt{font-size:var(--font-size-xs);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.5px}.admin-details dd{margin:0;color:var(--color-text);font-size:var(--font-size-sm)}.admin-card-actions{display:flex;gap:var(--space-12)}.empty-state{padding:var(--space-16);background:var(--color-secondary);border-radius:var(--radius-base);color:var(--color-text-secondary);font-size:var(--font-size-sm)}.form-error{color:var(--color-error, #b91c1c);font-size:var(--font-size-sm);margin:0 0 var(--space-12) 0}.profile-container{max-width:800px;margin:var(--space-32) auto}.profile-header{display:flex;align-items:center;gap:var(--space-24);margin-bottom:var(--space-32);padding:var(--space-24);background:var(--color-surface);border-radius:var(--radius-lg);border:1px solid var(--color-border)}.profile-avatar{width:120px;height:120px;border-radius:50%;background:var(--color-primary-light);display:flex;align-items:center;justify-content:center;font-size:3rem;color:var(--color-primary)}.avatar-placeholder{font-size:3rem}.profile-info h1{margin-bottom:var(--space-8)}.profile-info p{color:var(--color-text-secondary);margin-bottom:var(--space-16)}.profile-sections{display:grid;gap:var(--space-24)}.profile-section{background:var(--color-surface);border-radius:var(--radius-lg);border:1px solid var(--color-border);padding:var(--space-24)}.profile-section h3{margin-bottom:var(--space-16);color:var(--color-text)}.skills-list,.interests-list{display:flex;flex-wrap:wrap;gap:var(--space-8)}.skill-badge,.interest-badge{background:var(--color-primary-light);color:var(--color-primary);padding:var(--space-6) var(--space-12);border-radius:var(--radius-base);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.registered-events{display:grid;gap:var(--space-12)}.registered-event{padding:var(--space-16);background:var(--color-background);border-radius:var(--radius-base);border:1px solid var(--color-border)}.registered-event-title{font-weight:var(--font-weight-semibold);color:var(--color-text);margin-bottom:var(--space-4)}.registered-event-date{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000;padding:var(--space-16)}.modal.hidden{display:none}.modal-content{background:var(--color-surface);border-radius:var(--radius-lg);max-width:500px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-20);border-bottom:1px solid var(--color-border)}.modal-header h3{margin:0;color:var(--color-text)}.modal-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--color-text-secondary);padding:var(--space-4);line-height:1}.modal-close:hover{color:var(--color-text)}.modal form{padding:var(--space-20)}.modal-actions{display:flex;gap:var(--space-12);justify-content:flex-end;margin-top:var(--space-20)}.btn--primary{background:var(--color-primary);color:#fff;border:1px solid var(--color-primary)}.btn--primary:hover{background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.btn--primary:active{background:var(--color-primary-active);border-color:var(--color-primary-active)}.btn--outline{background:transparent;color:var(--color-primary);border:1px solid var(--color-primary)}.btn--outline:hover{background:var(--color-primary);color:#fff}@media (max-width: 768px){.nav-links{display:none;position:absolute;top:100%;left:0;width:100%;background:var(--color-surface);flex-direction:column;padding:var(--space-16);box-shadow:var(--shadow-lg);border-top:1px solid var(--color-border)}.nav-links.active,.mobile-menu-btn{display:flex}.nav-auth{width:100%;justify-content:space-between}.hero-content h1{font-size:2.5rem}.hero-buttons{flex-direction:column;align-items:center}.events-grid,.posts-grid{grid-template-columns:1fr}.filters{flex-direction:column}.filters .form-control{min-width:auto}.profile-header{flex-direction:column;text-align:center}.page-header{flex-direction:column;gap:var(--space-16);align-items:flex-start}.stats-grid{grid-template-columns:repeat(2,1fr)}.hackfinder-tabs{flex-direction:column}.tab-btn{text-align:left}.modal-actions{flex-direction:column}.post-card-footer{flex-direction:column;gap:var(--space-8);align-items:flex-start}}@media (max-width: 480px){.container{padding:0 var(--space-12)}.hero{padding:40px 0}.hero-content h1{font-size:2rem}.stats-grid{grid-template-columns:1fr}.stat-card{padding:var(--space-16)}.stat-number{font-size:2.5rem}}