style.css

/* Custom styles and animations */
:root {
    --amber-primary: #f59e0b;
    --amber-secondary: #fbbf24;
    --yellow-primary: #eab308;
    --yellow-secondary: #fde047;
    --dark-bg: #111827;
    --dark-surface: #1f2937;
    --dark-border: #374151;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--amber-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--amber-secondary);
}

/* Gradient animation */
@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.animate-gradient {
    background-size: 200% 200%;
    animation: gradient 3s ease infinite;
}

/* Paper card hover effect */
.paper-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.paper-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(245, 158, 11, 0.15);
}

/* Loading shimmer */
.shimmer {
    background: linear-gradient(90deg, #1f2937 25%, #374151 50%, #1f2937 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Floating animation for hero elements */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.float-animation {
    animation: float 3s ease-in-out infinite;
}

/* Custom button styles */
.btn-primary {
    @apply bg-amber-500 hover:bg-amber-400 text-gray-900 font-semibold py-3 px-6 rounded-lg transition-all duration-200 transform hover:scale-105;
}

.btn-secondary {
    @apply border border-amber-500 text-amber-400 hover:bg-amber-500 hover:text-gray-900 font-semibold py-3 px-6 rounded-lg transition-all duration-200;
}

/* Glass morphism effect */
.glass {
    background: rgba(31, 41, 55, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Fade-in animation */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.6s ease-out forwards;
}

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

/* Staggered animation delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }

/* Responsive typography */
@media (max-width: 640px) {
    .text-responsive-h1 {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    .text-responsive-h2 {
        font-size: 2rem;
        line-height: 1.2;
    }
}

/* Custom selection color */
::selection {
    background: rgba(245, 158, 11, 0.3);
    color: var(--amber-primary);
}

/* Focus styles */
.focus\:ring-amber-500:focus {
    --tw-ring-color: var(--amber-primary);
}

/* Custom form styles */
input[type="text"], input[type="email"], textarea, select {
    background-color: var(--dark-surface);
    border-color: var(--dark-border);
    color: #f3f4f6;
}

input[type="text"]:focus, input[type="email"]:focus, textarea:focus, select:focus {
    border-color: var(--amber-primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

/* Tag styles */
.tag {
    @apply inline-block px-3 py-1 text-xs font-medium rounded-full;
}

.tag-ml {
    background: rgba(245, 158, 11, 0.15);
    color: var(--amber-primary);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.tag-cv {
    background: rgba(234, 179, 8, 0.15);
    color: var(--yellow-primary);
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.tag-nlp {
    background: rgba(251, 191, 36, 0.15);
    color: var(--amber-secondary);
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.tag-robotics {
    background: rgba(253, 224, 71, 0.15);
    color: var(--yellow-secondary);
    border: 1px solid rgba(253, 224, 71, 0.3);
}

.tag-ds {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Mobile menu animation */
.mobile-menu-enter {
    opacity: 0;
    transform: translateY(-10px);
}

.mobile-menu-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.2s, transform 0.2s;
}

/* Paper preview modal */
.modal-backdrop {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--dark-surface);
    border: 1px solid var(--dark-border);
    max-height: 90vh;
    overflow-y: auto;
}

/* Empty state */
.empty-state {
    @apply text-center py-16;
}

.empty-state-icon {
    @apply w-16 h-16 mx-auto text-gray-600 mb-4;
}

/* Success message */
.success-message {
    @apply bg-green-500/10 border border-green-500/30 text-green-400 px-4 py-3 rounded-lg;
}