/* Component Styles */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-primary {
    color: var(--color-white);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.btn-secondary {
    color: var(--color-white);
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn-outline {
    color: var(--color-primary);
    background-color: transparent;
    border-color: var(--color-primary);
}

.btn-outline:hover {
    color: var(--color-white);
    background-color: var(--color-primary);
}

/* Cards */
.card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-gray-200);
    background-color: var(--color-gray-50);
}

.card-body {
    padding: var(--space-lg);
}

.card-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--color-gray-200);
    background-color: var(--color-gray-50);
}

/* Forms */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
}

.form-input,
.form-textarea,
.form-select {
    display: block;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-input.is-invalid,
.form-textarea.is-invalid,
.form-select.is-invalid {
    border-color: var(--color-danger);
}

.form-input.is-invalid:focus,
.form-textarea.is-invalid:focus,
.form-select.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-error {
    display: block;
    margin-top: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-modal);
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal.is-active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: modalSlideIn var(--transition-normal);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.modal-title {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: var(--font-size-xl);
    color: var(--color-gray-500);
    background: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-gray-700);
    background-color: var(--color-gray-100);
}

.modal-body {
    padding: var(--space-lg);
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-top: 1px solid var(--color-gray-200);
    background-color: var(--color-gray-50);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.nav-title {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.hamburger {
    width: 100%;
    height: 2px;
    background-color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
}

/* Mobile navigation */
@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        background-color: var(--color-white);
        transition: left var(--transition-normal);
        z-index: var(--z-fixed);
    }

    .nav-menu.is-active {
        left: 0;
    }

    .nav-item {
        margin: var(--space-md) 0;
    }

    .nav-link {
        font-size: var(--font-size-lg);
    }

    .nav-toggle.is-active .hamburger:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.is-active .hamburger:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.is-active .hamburger:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* Feature cards */
.feature-card {
    text-align: center;
    padding: var(--space-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.feature-title {
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
}

.feature-description {
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
}

/* Example cards */
.example-card {
    padding: var(--space-xl);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    text-align: center;
}

.example-card h3 {
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
}

.example-card p {
    margin-bottom: var(--space-lg);
    color: var(--color-gray-600);
}