/* Button Components - Professional Design System */

/* Primary Button - Main CTA */
.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: white;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

    .btn-primary::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        transition: var(--transition-slow);
    }

    .btn-primary:hover::before {
        left: 100%;
    }

    .btn-primary:hover {
        background: var(--gradient-primary-hover);
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(0, 102, 204, 0.4);
    }

    .btn-primary:active {
        transform: translateY(-1px);
        box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
    }

/* Secondary Button - Outline Style */
.btn-secondary {
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 12px 30px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

    .btn-secondary::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        border-radius: 50%;
        background: white;
        transform: translate(-50%, -50%);
        transition: width 0.6s, height 0.6s;
    }

    .btn-secondary:hover {
        color: var(--primary-color);
        border-color: white;
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
    }

        .btn-secondary:hover::before {
            width: 300px;
            height: 300px;
        }

    .btn-secondary span {
        position: relative;
        z-index: 1;
    }

/* Outline Button - For Light Backgrounds */
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 12px 30px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

    .btn-outline::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 0;
        height: 100%;
        background: var(--gradient-primary);
        transition: var(--transition);
        z-index: 0;
    }

    .btn-outline:hover {
        color: white;
        border-color: var(--primary-color);
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(0, 102, 204, 0.3);
    }

        .btn-outline:hover::before {
            width: 100%;
        }

    .btn-outline span {
        position: relative;
        z-index: 1;
    }

/* Ghost Button - Minimal Style */
.btn-ghost {
    background: transparent;
    border: none;
    color: var(--primary-color);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
}

    .btn-ghost::after {
        content: '';
        position: absolute;
        bottom: 8px;
        left: 24px;
        right: 24px;
        height: 2px;
        background: var(--gradient-primary);
        transform: scaleX(0);
        transition: var(--transition);
    }

    .btn-ghost:hover {
        color: var(--primary-dark);
        background: rgba(0, 102, 204, 0.05);
    }

        .btn-ghost:hover::after {
            transform: scaleX(1);
        }

/* Icon Buttons */
.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

    .btn-icon:hover {
        transform: rotate(5deg) scale(1.1);
    }

/* Button with Icon */
.btn-with-icon {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

    .btn-with-icon i,
    .btn-with-icon svg {
        transition: var(--transition);
    }

    .btn-with-icon:hover i,
    .btn-with-icon:hover svg {
        transform: translateX(4px);
    }

/* Button Sizes */
.btn-sm {
    padding: 8px 20px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.125rem;
}

.btn-xl {
    padding: 20px 48px;
    font-size: 1.25rem;
}

/* Button States */
.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

    .btn-loading::after {
        content: '';
        position: absolute;
        width: 16px;
        height: 16px;
        top: 50%;
        left: 50%;
        margin-left: -8px;
        margin-top: -8px;
        border: 2px solid white;
        border-radius: 50%;
        border-top-color: transparent;
        animation: spin 0.6s linear infinite;
    }

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive Buttons */
@media (max-width: 768px) {
    .btn {
        padding: 12px 24px;
        font-size: 0.9375rem;
    }

    .btn-lg {
        padding: 14px 32px;
        font-size: 1rem;
    }
}