/* Additional Modern Effects and Utilities */

/* Smooth scroll behavior for better UX */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Selection styling */
::selection {
    background: var(--accent-color);
    color: white;
}

::-moz-selection {
    background: var(--accent-color);
    color: white;
}

/* Scrollbar styling (WebKit browsers) */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

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

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

/* Loading skeleton effect */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* Pulse effect for important elements */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
    100% {
        opacity: 1;
    }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Shiny effect for premium look */
@keyframes shine {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shine {
    animation: shine 2s infinite;
}

/* Badge styling for skills */
.badge {
    display: inline-block;
    background: var(--primary-gradient);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-right: 8px;
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Tag styling for categories */
.tag {
    display: inline-block;
    background: rgba(102, 126, 234, 0.1);
    color: var(--accent-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(102, 126, 234, 0.3);
    margin-right: 8px;
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--primary-gradient);
    color: white;
    border-color: var(--accent-color);
}

/* Breadcrumb styling */
.breadcrumb {
    display: flex;
    gap: 10px;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.breadcrumb-item {
    color: #999;
}

.breadcrumb-item.active {
    color: var(--accent-color);
    font-weight: 600;
}

.breadcrumb-item::after {
    content: '/';
    margin-left: 10px;
}

.breadcrumb-item:last-child::after {
    content: '';
}

/* Alert/Message styling */
.alert {
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(52, 211, 153, 0.1);
    border-left-color: #34d399;
    color: #059669;
}

.alert-warning {
    background: rgba(250, 204, 21, 0.1);
    border-left-color: #fccf21;
    color: #b45309;
}

.alert-error {
    background: rgba(248, 113, 113, 0.1);
    border-left-color: #f87171;
    color: #dc2626;
}

.alert-info {
    background: rgba(96, 165, 250, 0.1);
    border-left-color: #60a5fa;
    color: #1e40af;
}

/* Tooltip styling */
.tooltip-container {
    position: relative;
    display: inline-block;
    cursor: help;
}

.tooltip-content {
    visibility: hidden;
    width: 200px;
    background-color: #333;
    color: white;
    text-align: center;
    border-radius: 6px;
    padding: 8px 12px;
    position: absolute;
    z-index: 1000;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.85rem;
}

.tooltip-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #333 transparent transparent transparent;
}

.tooltip-container:hover .tooltip-content {
    visibility: visible;
    opacity: 1;
}

/* Code block styling */
code {
    background: #f4f4f4;
    color: #c7254e;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    line-height: 1.5;
    font-family: 'Courier New', monospace;
}

pre code {
    background: none;
    color: #f8f8f2;
    padding: 0;
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

.grid { display: grid; }

.hidden { display: none !important; }
.visible { display: block !important; }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

.shadow-sm { box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05); }
.shadow-md { box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); }
.shadow-lg { box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1); }
.shadow-xl { box-shadow: 0 20px 25px rgba(0, 0, 0, 0.1); }

.rounded { border-radius: 8px; }
.rounded-full { border-radius: 9999px; }
.rounded-sm { border-radius: 4px; }
.rounded-lg { border-radius: 12px; }

/* Video/iframe responsive wrapper */
.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Table styling */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th {
    background: var(--primary-gradient);
    color: white;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
}

td {
    padding: 12px 16px;
    border-bottom: 1px solid #e0e0e0;
}

tr:hover {
    background: #f9f9f9;
}

/* Form styling */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: #999;
}

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

/* Success and error states */
.form-control.is-valid {
    border-color: #34d399;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2334d399' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4.6 5.05c-.5.58-1.5.64-2.2.08z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    padding-right: 36px;
}

.form-control.is-invalid {
    border-color: #f87171;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23f87171' viewBox='0 0 12 12'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23f87171' stroke='none'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    padding-right: 36px;
}

/* Help text */
.form-text {
    display: block;
    margin-top: 4px;
    font-size: 0.85rem;
    color: #999;
}

.form-text.text-error {
    color: #dc2626;
}

/* Checkbox and radio styling */
.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.form-check input {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.form-check label {
    cursor: pointer;
    margin-bottom: 0;
}

/* Select dropdown styling */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}