:root{--color-primary: #000000;--color-primary-dark: #1a1a1a;--color-primary-light: #333333;--color-secondary: #ffffff;--color-accent: #404040;--color-success: #10b981;--color-warning: #f59e0b;--color-error: #ef4444;--color-info: #3b82f6;--color-bg-primary: #ffffff;--color-bg-secondary: #f8f9fa;--color-bg-tertiary: #f1f3f5;--color-bg-card: rgba(255, 255, 255, .95);--color-text-primary: #000000;--color-text-secondary: #404040;--color-text-muted: #6b7280;--color-border: rgba(0, 0, 0, .1);--color-border-focus: rgba(0, 0, 0, .3);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .15);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .2);--shadow-glow: 0 0 20px rgba(0, 0, 0, .1);--transition-fast: .15s ease-in-out;--transition-base: .25s ease-in-out;--transition-slow: .35s ease-in-out}[data-theme=dark]{--color-primary: #ffffff;--color-primary-dark: #e5e5e5;--color-primary-light: #cccccc;--color-secondary: #000000;--color-accent: #b0b0b0;--color-success: #10b981;--color-warning: #f59e0b;--color-error: #ef4444;--color-info: #3b82f6;--color-bg-primary: #0a0a0a;--color-bg-secondary: #1a1a1a;--color-bg-tertiary: #2a2a2a;--color-bg-card: rgba(26, 26, 26, .95);--color-text-primary: #ffffff;--color-text-secondary: #b0b0b0;--color-text-muted: #808080;--color-border: rgba(255, 255, 255, .1);--color-border-focus: rgba(255, 255, 255, .3);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .5);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .6);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .7);--shadow-glow: 0 0 20px rgba(255, 255, 255, .1)}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);font-weight:var(--font-weight-normal);line-height:1.6;color:var(--color-text-primary);background:var(--color-bg-primary);background-attachment:fixed;min-height:100vh}#root{min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-bold);line-height:1.2;margin-bottom:var(--space-4);color:var(--color-text-primary)}h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-3xl)}h3{font-size:var(--font-size-2xl)}h4{font-size:var(--font-size-xl)}h5{font-size:var(--font-size-lg)}h6{font-size:var(--font-size-base)}p{margin-bottom:var(--space-4);color:var(--color-text-secondary)}a{color:var(--color-primary-light);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary)}.page-container{min-height:100vh;display:flex;flex-direction:column}.content-wrapper{padding:var(--space-8);max-width:1400px;margin:0 auto;width:100%;animation:fadeIn var(--transition-base)}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:var(--space-4);animation:fadeIn var(--transition-slow)}.card{background:var(--color-bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-lg);transition:all var(--transition-base)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl);border-color:#0003}.card-compact{padding:var(--space-6)}.auth-card{width:100%;max-width:420px;background:var(--color-bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-2xl);padding:var(--space-10);box-shadow:var(--shadow-xl);animation:slideUp var(--transition-slow)}.dashboard-card{background:var(--color-bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);margin-bottom:var(--space-6);transition:all var(--transition-base)}.dashboard-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.form-group{margin-bottom:var(--space-6)}.form-label{display:block;margin-bottom:var(--space-2);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.form-input,.form-textarea,.form-select{width:100%;padding:var(--space-3) var(--space-4);font-size:var(--font-size-base);font-family:inherit;color:var(--color-text-primary);background:var(--color-bg-primary);border:1px solid var(--color-border);border-radius:var(--radius-md);outline:none;transition:all var(--transition-fast)}.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--color-border-focus);background:var(--color-bg-primary);box-shadow:0 0 0 3px #0000000d}[data-theme=dark] .form-input:focus,[data-theme=dark] .form-textarea:focus,[data-theme=dark] .form-select:focus{box-shadow:0 0 0 3px #ffffff0d}.form-input::placeholder,.form-textarea::placeholder{color:var(--color-text-muted)}.form-textarea{resize:vertical;min-height:100px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);font-family:inherit;line-height:1;text-align:center;text-decoration:none;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{color:var(--color-secondary);background:var(--color-primary);box-shadow:var(--shadow-md)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-lg),var(--shadow-glow);background:var(--color-primary-dark)}.btn-secondary{color:var(--color-text-primary);background:var(--color-bg-tertiary);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-secondary);border-color:#0003}[data-theme=dark] .btn-secondary:hover:not(:disabled){border-color:#fff3}.btn-success{color:#fff;background:var(--color-success)}.btn-success:hover:not(:disabled){background:#059669;transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-danger{color:#fff;background:var(--color-error)}.btn-danger:hover:not(:disabled){background:#dc2626;transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-sm{padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm)}.btn-lg{padding:var(--space-4) var(--space-8);font-size:var(--font-size-lg)}.btn-block{width:100%}.navbar{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-8);background:var(--color-bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-sm);animation:slideDown var(--transition-base)}.navbar-brand{display:flex;align-items:center;gap:var(--space-3);font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);cursor:pointer;transition:color var(--transition-fast)}.navbar-brand:hover{color:var(--color-primary-light)}.navbar-actions{display:flex;align-items:center;gap:var(--space-4)}.navbar-role-badge{padding:var(--space-2) var(--space-4);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.5px;background:var(--color-primary);border-radius:var(--radius-full);color:var(--color-secondary)}.theme-toggle{position:relative}.theme-toggle-btn{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);font-family:inherit;color:var(--color-text-primary);background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.theme-toggle-btn:hover{background:var(--color-bg-secondary);border-color:#0003}[data-theme=dark] .theme-toggle-btn:hover{border-color:#fff3}.theme-icon{font-size:var(--font-size-base);line-height:1}.theme-label{font-size:var(--font-size-sm)}.theme-dropdown{position:absolute;top:calc(100% + var(--space-2));right:0;min-width:120px;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);overflow:hidden;animation:slideDown var(--transition-fast);z-index:1000}.theme-option{display:flex;align-items:center;gap:var(--space-3);width:100%;padding:var(--space-3) var(--space-4);font-size:var(--font-size-sm);font-family:inherit;color:var(--color-text-primary);background:transparent;border:none;cursor:pointer;transition:background var(--transition-fast);text-align:left}.theme-option:hover{background:var(--color-bg-secondary)}.theme-option.active{background:var(--color-bg-tertiary);font-weight:var(--font-weight-semibold)}.table-container{overflow-x:auto;border-radius:var(--radius-lg);background:var(--color-bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--color-border)}.table{width:100%;border-collapse:collapse;font-size:var(--font-size-sm)}.table thead{background:var(--color-bg-tertiary)}.table th{padding:var(--space-4);text-align:left;font-weight:var(--font-weight-semibold);color:var(--color-text-primary);border-bottom:1px solid var(--color-border)}.table td{padding:var(--space-4);border-bottom:1px solid var(--color-border);color:var(--color-text-secondary)}.table tbody tr{transition:background var(--transition-fast)}.table tbody tr:hover{background:var(--color-bg-secondary)}.badge{display:inline-flex;align-items:center;padding:var(--space-1) var(--space-3);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;border-radius:var(--radius-full);letter-spacing:.5px}.badge-admin{background:#ef44441a;color:#dc2626;border:1px solid rgba(239,68,68,.2)}.badge-mentor{background:#10b9811a;color:#059669;border:1px solid rgba(16,185,129,.2)}.badge-intern{background:#3b82f61a;color:#2563eb;border:1px solid rgba(59,130,246,.2)}.alert{padding:var(--space-4);border-radius:var(--radius-md);font-size:var(--font-size-sm);margin-bottom:var(--space-4);animation:slideDown var(--transition-base)}.alert-error{background:#ef444414;color:#dc2626;border:1px solid rgba(239,68,68,.2)}.alert-success{background:#10b98114;color:#059669;border:1px solid rgba(16,185,129,.2)}.alert-info{background:#3b82f614;color:#2563eb;border:1px solid rgba(59,130,246,.2)}.progress-container{width:100%;height:8px;background:var(--color-bg-tertiary);border-radius:var(--radius-full);overflow:hidden;margin:var(--space-2) 0}.progress-bar{height:100%;background:var(--color-primary);border-radius:var(--radius-full);transition:width var(--transition-slow)}.custom-checkbox{display:flex;align-items:center;gap:var(--space-3);cursor:pointer}.custom-checkbox input[type=checkbox]{appearance:none;width:20px;height:20px;border:2px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-primary);cursor:pointer;transition:all var(--transition-fast);position:relative}.custom-checkbox input[type=checkbox]:checked{background:var(--color-primary);border-color:var(--color-primary)}.custom-checkbox input[type=checkbox]:checked:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:var(--color-secondary);font-size:14px;font-weight:700}.loading-spinner{display:inline-block;width:40px;height:40px;border:4px solid rgba(0,0,0,.1);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}.loading-text{text-align:center;color:var(--color-text-secondary);font-size:var(--font-size-lg);padding:var(--space-8)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6);padding-bottom:var(--space-4);border-bottom:1px solid var(--color-border)}.section-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin:0}.grid{display:grid;gap:var(--space-6)}.grid-cols-1{grid-template-columns:1fr}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}@media(max-width:768px){.grid-cols-2,.grid-cols-3{grid-template-columns:1fr}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.text-center{text-align:center}.text-right{text-align:right}.text-left{text-align:left}.mt-2{margin-top:var(--space-2)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mt-8{margin-top:var(--space-8)}.mb-2{margin-bottom:var(--space-2)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.mb-8{margin-bottom:var(--space-8)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--space-2)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.cursor-pointer{cursor:pointer}.opacity-50{opacity:.5}.opacity-75{opacity:.75}@media(max-width:768px){.content-wrapper{padding:var(--space-4)}.auth-card{padding:var(--space-6)}.navbar{padding:var(--space-3) var(--space-4)}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}}