/* Button Components */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* Ensure button text colors override general link styles */
.btn,
.btn:visited,
.btn:link {
    text-decoration: none;
}

.btn:hover,
.btn:focus,
.btn:active {
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white !important;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--accent-light), var(--accent-color));
    color: white !important;
}

.btn-secondary {
    background-color: var(--background-white);
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover,
.btn-secondary:focus,
.btn-secondary:active {
    background-color: var(--background-gray);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    color: var(--text-primary) !important;
}

.btn-outline {
    background-color: transparent;
    color: var(--accent-color) !important;
    border: 1px solid var(--accent-color);
}

.btn-outline:hover,
.btn-outline:focus,
.btn-outline:active {
    background-color: var(--accent-color);
    color: #ffffff !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Download Button with Animation */
.download-btn {
    position: relative;
    overflow: hidden;
}

.download-btn.downloading {
    pointer-events: none;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
}

.download-btn.downloading .download-icon {
    animation: downloadPulse 1.5s ease-in-out infinite;
}

.download-btn.downloading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: downloadShimmer 1.5s ease-in-out infinite;
}

.download-btn.completed .download-icon {
    animation: downloadSuccess 0.6s ease-out;
}

.download-btn.completed::before {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.2rem;
    color: white;
    animation: checkmarkAppear 0.4s ease-out;
}

/* Error state for download button */
.download-btn.error {
    background: linear-gradient(135deg, #dc3545, #c82333);
    color: white !important;
}

.download-btn.error .download-icon {
    animation: errorShake 0.6s ease-out;
}

/* Button Animations */
@keyframes downloadPulse {

    0%,
    100% {
        transform: translateY(0);
        opacity: 1;
    }

    50% {
        transform: translateY(-3px);
        opacity: 0.7;
    }
}

@keyframes downloadShimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

@keyframes downloadSuccess {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes checkmarkAppear {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0;
    }

    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 1;
    }

    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

@keyframes errorShake {

    0%,
    100% {
        transform: translateX(0);
    }

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-2px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(2px);
    }
}

/* Theme-specific button styles */

/* Responsive Button Design */
@media (max-width: 768px) {
    .btn {
        padding: 0.675rem 1.25rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .btn {
        width: 100%;
        justify-content: center;
        max-width: 250px;
    }
}