/* ===== Button Components ===== */

.btn {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: var(--spacing-sm);

    padding: var(--spacing-sm) var(--spacing-lg);

    border: none;

    border-radius: var(--radius-md);

    font-family: inherit;

    font-size: 1rem;

    font-weight: 500;

    text-decoration: none;

    cursor: pointer;

    transition: all var(--transition-normal);

    position: relative;

    overflow: hidden;

}



.btn:before {

    content: '';

    position: absolute;

    top: 0;

    left: -100%;

    width: 100%;

    height: 100%;

    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);

    transition: left 0.5s;

}



.btn:hover:before {

    left: 100%;

}



/* Button Variants */

.btn-primary {

    background: var(--gradient-primary);

    color: var(--text-white);

    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);

}



.btn-primary:hover {

    transform: translateY(-2px);

    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);

}



.btn-secondary {

    background: var(--bg-tertiary);

    color: var(--text-primary);

    border: 1px solid var(--border-color);

}



.btn-secondary:hover {

    background: var(--bg-dark);

    color: var(--text-white);

}



.btn-success {

    background: var(--gradient-success);

    color: var(--text-white);

    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);

}



.btn-success:hover {

    transform: translateY(-2px);

    box-shadow: 0 6px 20px rgba(39, 174, 96, 0.4);

}



.btn-warning {

    background: var(--gradient-gold);

    color: var(--text-white);

    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);

}



.btn-warning:hover {

    transform: translateY(-2px);

    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);

}



.btn-danger {

    background: var(--error-color);

    color: var(--text-white);

    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);

}



.btn-danger:hover {

    transform: translateY(-2px);

    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);

}



.btn-ghost {

    background: transparent;

    color: var(--primary-color);

    border: 2px solid var(--primary-color);

}



.btn-ghost:hover {

    background: var(--primary-color);

    color: var(--text-white);

}



/* Button Sizes */

.btn-sm {

    padding: var(--spacing-xs) var(--spacing-md);

    font-size: 0.875rem;

}



.btn-lg {

    padding: var(--spacing-md) var(--spacing-xl);

    font-size: 1.125rem;

}



.btn-xl {

    padding: var(--spacing-lg) var(--spacing-xxl);

    font-size: 1.25rem;

}



/* ===== Locked Feature Overlay (animated, custom content) ===== */
.feature-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.feature-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.feature-overlay-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
}

.feature-overlay-box {
    position: relative;
    background: radial-gradient(circle at top, #0f172a, #020617);
    border-radius: 1.5rem;
    box-shadow: 0 30px 80px rgba(15, 23, 42, 0.6);
    width: min(420px, 90vw);
    padding: 1px;
    overflow: hidden;
    transform: translateY(20px) scale(0.9);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.feature-overlay.show .feature-overlay-box {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.feature-overlay-box::before {
    content: "";
    position: absolute;
    inset: -40%;
    background: conic-gradient(from 180deg, rgba(56, 189, 248, 0.8), rgba(236, 72, 153, 0.8), rgba(129, 140, 248, 0.9), rgba(56, 189, 248, 0.8));
    opacity: 0.35;
    filter: blur(24px);
    animation: feature-orbit 8s linear infinite;
}

.feature-overlay-inner {
    position: relative;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.98));
    border-radius: 1.4rem;
    padding: var(--spacing-xl);
    border: 1px solid rgba(148, 163, 184, 0.4);
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 1;
}

.feature-overlay-close {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.6);
    background: rgba(15, 23, 42, 0.8);
    color: #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    transition: all 0.2s ease;
}

.feature-overlay-close:hover {
    background: rgba(30, 64, 175, 0.95);
    border-color: rgba(129, 140, 248, 0.95);
}

.feature-overlay-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.12);
    color: #e0f2fe;
    font-size: 0.8rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    border: 1px solid rgba(56, 189, 248, 0.4);
}

.feature-overlay-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 1.25rem;
    background: radial-gradient(circle at top, #38bdf8, #0f172a);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #e5e7eb;
    font-size: 1.8rem;
    box-shadow: 0 16px 40px rgba(56, 189, 248, 0.6);
}

.feature-overlay-title {
    color: #e5e7eb;
    font-size: 1.2rem;
    font-weight: 700;
    text-align: center;
}

.feature-overlay-message {
    color: #cbd5f5;
    font-size: 0.95rem;
    text-align: center;
    line-height: 1.7;
}

@keyframes feature-orbit {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== Card Components ===== */

.card {

    background: var(--bg-primary);

    border-radius: var(--radius-lg);

    box-shadow: 0 4px 20px var(--shadow-light);

    border: 1px solid var(--border-color);

    transition: all var(--transition-normal);

    overflow: hidden;

}



.card:hover {

    transform: translateY(-5px);

    box-shadow: 0 8px 30px var(--shadow-medium);

}



.card-header {

    padding: var(--spacing-lg);

    border-bottom: 1px solid var(--border-color);

    background: var(--bg-secondary);

}



.card-title {

    font-size: 1.25rem;

    font-weight: 600;

    color: var(--text-primary);

    margin: 0;

}



.card-body {

    padding: var(--spacing-lg);

}



.card-footer {

    padding: var(--spacing-lg);

    border-top: 1px solid var(--border-color);

    background: var(--bg-secondary);

}



/* ===== Form Components ===== */

.form-group {

    margin-bottom: var(--spacing-lg);

}



.form-label {

    display: block;

    font-weight: 500;

    color: var(--text-primary);

    margin-bottom: var(--spacing-sm);

}



.form-control {

    width: 100%;

    padding: var(--spacing-sm) var(--spacing-md);

    border: 2px solid var(--border-color);

    border-radius: var(--radius-md);

    font-family: inherit;

    font-size: 1rem;

    background: var(--bg-primary);

    color: var(--text-primary);

    transition: all var(--transition-normal);

}



.form-control:focus {

    outline: none;

    border-color: var(--primary-color);

    box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.1);

}



.form-control::placeholder {

    color: var(--text-light);

}



.form-select {

    appearance: none;

    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");

    background-position: right 0.5rem center;

    background-repeat: no-repeat;

    background-size: 1.5em 1.5em;

    padding-right: 2.5rem;

}



.form-textarea {

    resize: vertical;

    min-height: 100px;

}



.form-checkbox {

    display: flex;

    align-items: center;

    gap: var(--spacing-sm);

    cursor: pointer;

}



.form-checkbox input[type="checkbox"] {

    width: 18px;

    height: 18px;

    accent-color: var(--primary-color);

}



.form-radio {

    display: flex;

    align-items: center;

    gap: var(--spacing-sm);

    cursor: pointer;

}



.form-radio input[type="radio"] {

    width: 18px;

    height: 18px;

    accent-color: var(--primary-color);

}



/* ===== Alert Components ===== */

.alert {

    padding: var(--spacing-md) var(--spacing-lg);

    border-radius: var(--radius-md);

    margin-bottom: var(--spacing-lg);

    border: 1px solid transparent;

    display: flex;

    align-items: center;

    gap: var(--spacing-sm);

}



.alert-success {

    background: rgba(39, 174, 96, 0.1);

    border-color: var(--success-color);

    color: var(--success-color);

}



.alert-warning {

    background: rgba(243, 156, 18, 0.1);

    border-color: var(--warning-color);

    color: var(--warning-color);

}



.alert-danger {

    background: rgba(231, 76, 60, 0.1);

    border-color: var(--error-color);

    color: var(--error-color);

}



.alert-info {

    background: rgba(52, 152, 219, 0.1);

    border-color: var(--info-color);

    color: var(--info-color);

}



/* ===== Badge Components ===== */

.badge {

    display: inline-flex;

    align-items: center;

    gap: var(--spacing-xs);

    padding: var(--spacing-xs) var(--spacing-sm);

    border-radius: var(--radius-sm);

    font-size: 0.75rem;

    font-weight: 500;

    text-transform: uppercase;

    letter-spacing: 0.5px;

}



.badge-primary {

    background: var(--primary-color);

    color: var(--text-white);

}



.badge-secondary {

    background: var(--bg-tertiary);

    color: var(--text-secondary);

}



.badge-success {

    background: var(--success-color);

    color: var(--text-white);

}



.badge-warning {

    background: var(--warning-color);

    color: var(--text-white);

}



.badge-danger {

    background: var(--error-color);

    color: var(--text-white);

}



.badge-info {

    background: var(--info-color);

    color: var(--text-white);

}



/* ===== Modal Components ===== */

.modal {

    position: fixed;

    top: 0;

    left: 0;

    width: 100%;

    height: 100%;

    background: rgba(0, 0, 0, 0.5);

    display: flex;

    align-items: center;

    justify-content: center;

    z-index: 2000;

    opacity: 0;

    visibility: hidden;

    transition: all var(--transition-normal);

}



.modal.show {

    opacity: 1;

    visibility: visible;

}



.modal-dialog {

    background: var(--bg-primary);

    border-radius: var(--radius-lg);

    box-shadow: 0 20px 60px var(--shadow-dark);

    max-width: 500px;

    width: 90%;

    max-height: 90vh;

    overflow-y: auto;

    transform: scale(0.9);

    transition: transform var(--transition-normal);

}



.modal.show .modal-dialog {

    transform: scale(1);

}



.modal-header {

    padding: var(--spacing-lg);

    border-bottom: 1px solid var(--border-color);

    display: flex;

    align-items: center;

    justify-content: space-between;

}



.modal-title {

    font-size: 1.25rem;

    font-weight: 600;

    color: var(--text-primary);

    margin: 0;

}



.modal-close {

    background: none;

    border: none;

    font-size: 1.5rem;

    color: var(--text-secondary);

    cursor: pointer;

    transition: color var(--transition-fast);

}



.modal-close:hover {

    color: var(--text-primary);

}



.modal-body {

    padding: var(--spacing-lg);

}



.modal-footer {

    padding: var(--spacing-lg);

    border-top: 1px solid var(--border-color);

    display: flex;

    gap: var(--spacing-md);

    justify-content: flex-end;

}



/* ===== Loading Components ===== */

.loading {

    display: inline-block;

    width: 20px;

    height: 20px;

    border: 2px solid var(--border-color);

    border-radius: 50%;

    border-top-color: var(--primary-color);

    animation: spin 1s ease-in-out infinite;

}



.loading-lg {

    width: 40px;

    height: 40px;

    border-width: 4px;

}



@keyframes spin {

    to {

        transform: rotate(360deg);

    }

}



.loading-overlay {

    position: fixed;

    top: 0;

    left: 0;

    width: 100%;

    height: 100%;

    background: rgba(255, 255, 255, 0.9);

    display: flex;

    align-items: center;

    justify-content: center;

    z-index: 3000;

}



.loading-overlay .loading {

    width: 60px;

    height: 60px;

    border-width: 6px;

}



/* ===== Progress Components ===== */

.progress {

    width: 100%;

    height: 8px;

    background: var(--bg-tertiary);

    border-radius: var(--radius-sm);

    overflow: hidden;

}



.progress-bar {

    height: 100%;

    background: var(--gradient-primary);

    border-radius: var(--radius-sm);

    transition: width var(--transition-slow);

}



.progress-lg {

    height: 12px;

}



.progress-sm {

    height: 4px;

}



/* ===== Tooltip Components ===== */

.tooltip {

    position: relative;

    display: inline-block;

}



.tooltip .tooltip-text {

    visibility: hidden;

    width: 120px;

    background: var(--bg-dark);

    color: var(--text-white);

    text-align: center;

    border-radius: var(--radius-sm);

    padding: var(--spacing-xs) var(--spacing-sm);

    position: absolute;

    z-index: 1000;

    bottom: 125%;

    left: 50%;

    margin-left: -60px;

    opacity: 0;

    transition: opacity var(--transition-normal);

    font-size: 0.8rem;

}



.tooltip .tooltip-text::after {

    content: "";

    position: absolute;

    top: 100%;

    left: 50%;

    margin-left: -5px;

    border-width: 5px;

    border-style: solid;

    border-color: var(--bg-dark) transparent transparent transparent;

}



.tooltip:hover .tooltip-text {

    visibility: visible;

    opacity: 1;

}



/* ===== Dropdown Components ===== */

.dropdown {

    position: relative;

    display: inline-block;

}



.dropdown-menu {

    position: absolute;

    top: 100%;

    right: 0;

    background: var(--bg-primary);

    border: 1px solid var(--border-color);

    border-radius: var(--radius-md);

    box-shadow: 0 10px 30px var(--shadow-medium);

    min-width: 200px;

    opacity: 0;

    visibility: hidden;

    transform: translateY(-10px);

    transition: all var(--transition-normal);

    z-index: 1000;

}



.dropdown:hover .dropdown-menu {

    opacity: 1;

    visibility: visible;

    transform: translateY(0);

}



.dropdown-item {

    display: block;

    padding: var(--spacing-sm) var(--spacing-md);

    color: var(--text-primary);

    text-decoration: none;

    transition: background-color var(--transition-fast);

}



.dropdown-item:hover {

    background: var(--bg-secondary);

}



.dropdown-divider {

    height: 1px;

    background: var(--border-color);

    margin: var(--spacing-xs) 0;

}



/* ===== Responsive Design ===== */

@media (max-width: 768px) {

    .btn {

        width: 100%;

        justify-content: center;

    }

    

    .card {

        margin-bottom: var(--spacing-md);

    }

    

    .modal-dialog {

        width: 95%;

        margin: var(--spacing-md);

    }

    

    .modal-footer {

        flex-direction: column;

    }

    

    .modal-footer .btn {

        width: 100%;

    }

}